[PATCH 0/3 V3] xfs_io: hook up statx

[PATCH 0/3 V3] xfs_io: hook up statx

[Eric Sandeen]

These 3 patches are a third pass to add a statx command
to xfs_io in hopes that it will aid creation of xfstests
statx regression tests.

bare "statx" output should look just like bare "stat" output.

xfs_io> help statx
statx [-v|-r][-m basic | -m all | -m <mask>][-FD] -- extended statistics on the currently open file

 Display extended file status.

 Options:
 -v -- More verbose output
 -r -- Print raw statx structure fields
 -m mask -- Specify the field mask for the statx call
            (can also be 'basic' or 'all'; default STATX_ALL)
 -D -- Don't sync attributes with the server
 -F -- Force the attributes to be sync'd with the server

xfs_io> statx -r
stat.mask = 0x7ff
stat.blksize = 4096
stat.attributes = 0x0
stat.nlink = 1
stat.uid = 0
stat.gid = 0
stat.mode: 0100644
stat.ino = 3905768
stat.size = 4691
stat.blocks = 16
stat.atime.tv_sec = 1491338515
stat.atime.tv_nsec = 564190075
stat.btime.tv_sec = 0
stat.btime.tv_nsec = 0
stat.ctime.tv_sec = 1489602207
stat.ctime.tv_nsec = 556521524
stat.mtime.tv_sec = 1489602207
stat.mtime.tv_nsec = 556521524
stat.rdev_major = 0
stat.rdev_minor = 0
stat.dev_major = 8
stat.dev_minor = 33

patch 2 factors out some stat functionality, and adds a
raw stat(2) dumper for consistency.

patch 3 implements the statx stuff, and includes a header file
with lots of the new #defines so this can build on older systems;
eventually that can be removed perhaps.

An interesting limitation of all of the xfs_io stat
variants is that they currently can't stat any file that
they can't open, which may or may not be a limitation that
we care about....

-Eric

[PATCH 1/3] xfs_io: move stat functions to new file

[Eric Sandeen]

Adding statx will add a bit of code, so break stat-related
functions out of open.c into their own new file.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

V3: remember to call stat_init()!


diff --git a/io/Makefile b/io/Makefile
index 32df568..435ccff 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -11,7 +11,7 @@ HFILES = init.h io.h
 CFILES = init.c \
 	attr.c bmap.c cowextsize.c encrypt.c file.c freeze.c fsync.c \
 	getrusage.c imap.c link.c mmap.c open.c parent.c pread.c prealloc.c \
-	pwrite.c reflink.c seek.c shutdown.c sync.c truncate.c utimes.c
+	pwrite.c reflink.c seek.c shutdown.c stat.c sync.c truncate.c utimes.c
 
 LLDLIBS = $(LIBXCMD) $(LIBHANDLE) $(LIBPTHREAD)
 LTDEPENDENCIES = $(LIBXCMD) $(LIBHANDLE)
diff --git a/io/init.c b/io/init.c
index 06002e6..c15a1e1 100644
--- a/io/init.c
+++ b/io/init.c
@@ -86,6 +86,7 @@ init_commands(void)
 	seek_init();
 	sendfile_init();
 	shutdown_init();
+	stat_init();
 	sync_init();
 	sync_range_init();
 	truncate_init();
diff --git a/io/io.h b/io/io.h
index c40aad0..952bdb8 100644
--- a/io/io.h
+++ b/io/io.h
@@ -53,7 +53,7 @@ extern fileio_t		*filetable;	/* open file table */
 extern int		filecount;	/* number of open files */
 extern fileio_t		*file;		/* active file in file table */
 extern int filelist_f(void);
-
+extern int stat_f(int argc, char **argv);
 /*
  * Memory mapped file regions
  */
@@ -112,6 +112,7 @@ extern void		pwrite_init(void);
 extern void		quit_init(void);
 extern void		seek_init(void);
 extern void		shutdown_init(void);
+extern void		stat_init(void);
 extern void		sync_init(void);
 extern void		truncate_init(void);
 extern void		utimes_init(void);
diff --git a/io/open.c b/io/open.c
index 941fdc1..2ed55cf 100644
--- a/io/open.c
+++ b/io/open.c
@@ -39,9 +39,7 @@
 #endif
 
 static cmdinfo_t open_cmd;
-static cmdinfo_t stat_cmd;
 static cmdinfo_t close_cmd;
-static cmdinfo_t statfs_cmd;
 static cmdinfo_t chproj_cmd;
 static cmdinfo_t lsproj_cmd;
 static cmdinfo_t extsize_cmd;
@@ -49,96 +47,6 @@ static cmdinfo_t inode_cmd;
 static prid_t prid;
 static long extsize;
 
-off64_t
-filesize(void)
-{
-	struct stat	st;
-
-	if (fstat(file->fd, &st) < 0) {
-		perror("fstat");
-		return -1;
-	}
-	return st.st_size;
-}
-
-static char *
-filetype(mode_t mode)
-{
-	switch (mode & S_IFMT) {
-	case S_IFSOCK:
-		return _("socket");
-	case S_IFDIR:
-		return _("directory");
-	case S_IFCHR:
-		return _("char device");
-	case S_IFBLK:
-		return _("block device");
-	case S_IFREG:
-		return _("regular file");
-	case S_IFLNK:
-		return _("symbolic link");
-	case S_IFIFO:
-		return _("fifo");
-	}
-	return NULL;
-}
-
-static int
-stat_f(
-	int		argc,
-	char		**argv)
-{
-	struct dioattr	dio;
-	struct fsxattr	fsx, fsxa;
-	struct stat	st;
-	int		verbose = (argc == 2 && !strcmp(argv[1], "-v"));
-
-	printf(_("fd.path = \"%s\"\n"), file->name);
-	printf(_("fd.flags = %s,%s,%s%s%s%s%s\n"),
-		file->flags & IO_OSYNC ? _("sync") : _("non-sync"),
-		file->flags & IO_DIRECT ? _("direct") : _("non-direct"),
-		file->flags & IO_READONLY ? _("read-only") : _("read-write"),
-		file->flags & IO_REALTIME ? _(",real-time") : "",
-		file->flags & IO_APPEND ? _(",append-only") : "",
-		file->flags & IO_NONBLOCK ? _(",non-block") : "",
-		file->flags & IO_TMPFILE ? _(",tmpfile") : "");
-	if (fstat(file->fd, &st) < 0) {
-		perror("fstat");
-	} else {
-		printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
-		printf(_("stat.type = %s\n"), filetype(st.st_mode));
-		printf(_("stat.size = %lld\n"), (long long)st.st_size);
-		printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
-		if (verbose) {
-			printf(_("stat.atime = %s"), ctime(&st.st_atime));
-			printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
-			printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
-		}
-	}
-	if (file->flags & IO_FOREIGN)
-		return 0;
-	if ((xfsctl(file->name, file->fd, FS_IOC_FSGETXATTR, &fsx)) < 0 ||
-	    (xfsctl(file->name, file->fd, XFS_IOC_FSGETXATTRA, &fsxa)) < 0) {
-		perror("FS_IOC_FSGETXATTR");
-	} else {
-		printf(_("fsxattr.xflags = 0x%x "), fsx.fsx_xflags);
-		printxattr(fsx.fsx_xflags, verbose, 0, file->name, 1, 1);
-		printf(_("fsxattr.projid = %u\n"), fsx.fsx_projid);
-		printf(_("fsxattr.extsize = %u\n"), fsx.fsx_extsize);
-		printf(_("fsxattr.cowextsize = %u\n"), fsx.fsx_cowextsize);
-		printf(_("fsxattr.nextents = %u\n"), fsx.fsx_nextents);
-		printf(_("fsxattr.naextents = %u\n"), fsxa.fsx_nextents);
-	}
-	if ((xfsctl(file->name, file->fd, XFS_IOC_DIOINFO, &dio)) < 0) {
-		perror("XFS_IOC_DIOINFO");
-	} else {
-		printf(_("dioattr.mem = 0x%x\n"), dio.d_mem);
-		printf(_("dioattr.miniosz = %u\n"), dio.d_miniosz);
-		printf(_("dioattr.maxiosz = %u\n"), dio.d_maxiosz);
-	}
-	return 0;
-}
-
 int
 openfile(
 	char		*path,
@@ -697,58 +605,6 @@ extsize_f(
 	return 0;
 }
 
-static int
-statfs_f(
-	int			argc,
-	char			**argv)
-{
-	struct xfs_fsop_counts	fscounts;
-	struct xfs_fsop_geom	fsgeo;
-	struct statfs		st;
-
-	printf(_("fd.path = \"%s\"\n"), file->name);
-	if (platform_fstatfs(file->fd, &st) < 0) {
-		perror("fstatfs");
-	} else {
-		printf(_("statfs.f_bsize = %lld\n"), (long long) st.f_bsize);
-		printf(_("statfs.f_blocks = %lld\n"), (long long) st.f_blocks);
-		printf(_("statfs.f_bavail = %lld\n"), (long long) st.f_bavail);
-		printf(_("statfs.f_files = %lld\n"), (long long) st.f_files);
-		printf(_("statfs.f_ffree = %lld\n"), (long long) st.f_ffree);
-	}
-	if (file->flags & IO_FOREIGN)
-		return 0;
-	if ((xfsctl(file->name, file->fd, XFS_IOC_FSGEOMETRY_V1, &fsgeo)) < 0) {
-		perror("XFS_IOC_FSGEOMETRY_V1");
-	} else {
-		printf(_("geom.bsize = %u\n"), fsgeo.blocksize);
-		printf(_("geom.agcount = %u\n"), fsgeo.agcount);
-		printf(_("geom.agblocks = %u\n"), fsgeo.agblocks);
-		printf(_("geom.datablocks = %llu\n"),
-			(unsigned long long) fsgeo.datablocks);
-		printf(_("geom.rtblocks = %llu\n"),
-			(unsigned long long) fsgeo.rtblocks);
-		printf(_("geom.rtextents = %llu\n"),
-			(unsigned long long) fsgeo.rtextents);
-		printf(_("geom.rtextsize = %u\n"), fsgeo.rtextsize);
-		printf(_("geom.sunit = %u\n"), fsgeo.sunit);
-		printf(_("geom.swidth = %u\n"), fsgeo.swidth);
-	}
-	if ((xfsctl(file->name, file->fd, XFS_IOC_FSCOUNTS, &fscounts)) < 0) {
-		perror("XFS_IOC_FSCOUNTS");
-	} else {
-		printf(_("counts.freedata = %llu\n"),
-			(unsigned long long) fscounts.freedata);
-		printf(_("counts.freertx = %llu\n"),
-			(unsigned long long) fscounts.freertx);
-		printf(_("counts.freeino = %llu\n"),
-			(unsigned long long) fscounts.freeino);
-		printf(_("counts.allocino = %llu\n"),
-			(unsigned long long) fscounts.allocino);
-	}
-	return 0;
-}
-
 static void
 inode_help(void)
 {
@@ -920,14 +776,6 @@ open_init(void)
 	open_cmd.oneline = _("open the file specified by path");
 	open_cmd.help = open_help;
 
-	stat_cmd.name = "stat";
-	stat_cmd.cfunc = stat_f;
-	stat_cmd.argmin = 0;
-	stat_cmd.argmax = 1;
-	stat_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
-	stat_cmd.args = _("[-v]");
-	stat_cmd.oneline = _("statistics on the currently open file");
-
 	close_cmd.name = "close";
 	close_cmd.altname = "c";
 	close_cmd.cfunc = close_f;
@@ -936,12 +784,6 @@ open_init(void)
 	close_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK | CMD_FLAG_ONESHOT;
 	close_cmd.oneline = _("close the current open file");
 
-	statfs_cmd.name = "statfs";
-	statfs_cmd.cfunc = statfs_f;
-	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
-	statfs_cmd.oneline =
-		_("statistics on the filesystem of the currently open file");
-
 	chproj_cmd.name = "chproj";
 	chproj_cmd.cfunc = chproj_f;
 	chproj_cmd.args = _("[-D | -R] projid");
@@ -983,9 +825,7 @@ open_init(void)
 	inode_cmd.help = inode_help;
 
 	add_command(&open_cmd);
-	add_command(&stat_cmd);
 	add_command(&close_cmd);
-	add_command(&statfs_cmd);
 	add_command(&chproj_cmd);
 	add_command(&lsproj_cmd);
 	add_command(&extsize_cmd);
diff --git a/io/stat.c b/io/stat.c
new file mode 100644
index 0000000..3ae9903
--- /dev/null
+++ b/io/stat.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2003-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "command.h"
+#include "input.h"
+#include "init.h"
+#include "io.h"
+#include "libxfs.h"
+
+static cmdinfo_t stat_cmd;
+static cmdinfo_t statfs_cmd;
+
+off64_t
+filesize(void)
+{
+	struct stat	st;
+
+	if (fstat(file->fd, &st) < 0) {
+		perror("fstat");
+		return -1;
+	}
+	return st.st_size;
+}
+
+static char *
+filetype(mode_t mode)
+{
+	switch (mode & S_IFMT) {
+	case S_IFSOCK:
+		return _("socket");
+	case S_IFDIR:
+		return _("directory");
+	case S_IFCHR:
+		return _("char device");
+	case S_IFBLK:
+		return _("block device");
+	case S_IFREG:
+		return _("regular file");
+	case S_IFLNK:
+		return _("symbolic link");
+	case S_IFIFO:
+		return _("fifo");
+	}
+	return NULL;
+}
+
+int
+stat_f(
+	int		argc,
+	char		**argv)
+{
+	struct dioattr	dio;
+	struct fsxattr	fsx, fsxa;
+	struct stat	st;
+	int		verbose = (argc == 2 && !strcmp(argv[1], "-v"));
+
+	printf(_("fd.path = \"%s\"\n"), file->name);
+	printf(_("fd.flags = %s,%s,%s%s%s%s%s\n"),
+		file->flags & IO_OSYNC ? _("sync") : _("non-sync"),
+		file->flags & IO_DIRECT ? _("direct") : _("non-direct"),
+		file->flags & IO_READONLY ? _("read-only") : _("read-write"),
+		file->flags & IO_REALTIME ? _(",real-time") : "",
+		file->flags & IO_APPEND ? _(",append-only") : "",
+		file->flags & IO_NONBLOCK ? _(",non-block") : "",
+		file->flags & IO_TMPFILE ? _(",tmpfile") : "");
+	if (fstat(file->fd, &st) < 0) {
+		perror("fstat");
+	} else {
+		printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
+		printf(_("stat.type = %s\n"), filetype(st.st_mode));
+		printf(_("stat.size = %lld\n"), (long long)st.st_size);
+		printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
+		if (verbose) {
+			printf(_("stat.atime = %s"), ctime(&st.st_atime));
+			printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
+			printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
+		}
+	}
+	if (file->flags & IO_FOREIGN)
+		return 0;
+	if ((xfsctl(file->name, file->fd, FS_IOC_FSGETXATTR, &fsx)) < 0 ||
+	    (xfsctl(file->name, file->fd, XFS_IOC_FSGETXATTRA, &fsxa)) < 0) {
+		perror("FS_IOC_FSGETXATTR");
+	} else {
+		printf(_("fsxattr.xflags = 0x%x "), fsx.fsx_xflags);
+		printxattr(fsx.fsx_xflags, verbose, 0, file->name, 1, 1);
+		printf(_("fsxattr.projid = %u\n"), fsx.fsx_projid);
+		printf(_("fsxattr.extsize = %u\n"), fsx.fsx_extsize);
+		printf(_("fsxattr.cowextsize = %u\n"), fsx.fsx_cowextsize);
+		printf(_("fsxattr.nextents = %u\n"), fsx.fsx_nextents);
+		printf(_("fsxattr.naextents = %u\n"), fsxa.fsx_nextents);
+	}
+	if ((xfsctl(file->name, file->fd, XFS_IOC_DIOINFO, &dio)) < 0) {
+		perror("XFS_IOC_DIOINFO");
+	} else {
+		printf(_("dioattr.mem = 0x%x\n"), dio.d_mem);
+		printf(_("dioattr.miniosz = %u\n"), dio.d_miniosz);
+		printf(_("dioattr.maxiosz = %u\n"), dio.d_maxiosz);
+	}
+	return 0;
+}
+
+static int
+statfs_f(
+	int			argc,
+	char			**argv)
+{
+	struct xfs_fsop_counts	fscounts;
+	struct xfs_fsop_geom	fsgeo;
+	struct statfs		st;
+
+	printf(_("fd.path = \"%s\"\n"), file->name);
+	if (platform_fstatfs(file->fd, &st) < 0) {
+		perror("fstatfs");
+	} else {
+		printf(_("statfs.f_bsize = %lld\n"), (long long) st.f_bsize);
+		printf(_("statfs.f_blocks = %lld\n"), (long long) st.f_blocks);
+		printf(_("statfs.f_bavail = %lld\n"), (long long) st.f_bavail);
+		printf(_("statfs.f_files = %lld\n"), (long long) st.f_files);
+		printf(_("statfs.f_ffree = %lld\n"), (long long) st.f_ffree);
+	}
+	if (file->flags & IO_FOREIGN)
+		return 0;
+	if ((xfsctl(file->name, file->fd, XFS_IOC_FSGEOMETRY_V1, &fsgeo)) < 0) {
+		perror("XFS_IOC_FSGEOMETRY_V1");
+	} else {
+		printf(_("geom.bsize = %u\n"), fsgeo.blocksize);
+		printf(_("geom.agcount = %u\n"), fsgeo.agcount);
+		printf(_("geom.agblocks = %u\n"), fsgeo.agblocks);
+		printf(_("geom.datablocks = %llu\n"),
+			(unsigned long long) fsgeo.datablocks);
+		printf(_("geom.rtblocks = %llu\n"),
+			(unsigned long long) fsgeo.rtblocks);
+		printf(_("geom.rtextents = %llu\n"),
+			(unsigned long long) fsgeo.rtextents);
+		printf(_("geom.rtextsize = %u\n"), fsgeo.rtextsize);
+		printf(_("geom.sunit = %u\n"), fsgeo.sunit);
+		printf(_("geom.swidth = %u\n"), fsgeo.swidth);
+	}
+	if ((xfsctl(file->name, file->fd, XFS_IOC_FSCOUNTS, &fscounts)) < 0) {
+		perror("XFS_IOC_FSCOUNTS");
+	} else {
+		printf(_("counts.freedata = %llu\n"),
+			(unsigned long long) fscounts.freedata);
+		printf(_("counts.freertx = %llu\n"),
+			(unsigned long long) fscounts.freertx);
+		printf(_("counts.freeino = %llu\n"),
+			(unsigned long long) fscounts.freeino);
+		printf(_("counts.allocino = %llu\n"),
+			(unsigned long long) fscounts.allocino);
+	}
+	return 0;
+}
+
+void
+stat_init(void)
+{
+	stat_cmd.name = "stat";
+	stat_cmd.cfunc = stat_f;
+	stat_cmd.argmin = 0;
+	stat_cmd.argmax = 1;
+	stat_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
+	stat_cmd.args = _("[-v]");
+	stat_cmd.oneline = _("statistics on the currently open file");
+
+	statfs_cmd.name = "statfs";
+	statfs_cmd.cfunc = statfs_f;
+	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
+	statfs_cmd.oneline =
+		_("statistics on the filesystem of the currently open file");
+
+	add_command(&stat_cmd);
+	add_command(&statfs_cmd);
+}

Re: [PATCH 1/3] xfs_io: move stat functions to new file

[Darrick J. Wong]

On Thu, Apr 06, 2017 at 01:46:23PM -0500, Eric Sandeen wrote:
> Adding statx will add a bit of code, so break stat-related
> functions out of open.c into their own new file.
> 
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> 
> V3: remember to call stat_init()!
> 
> 
> diff --git a/io/Makefile b/io/Makefile
> index 32df568..435ccff 100644
> --- a/io/Makefile
> +++ b/io/Makefile
> @@ -11,7 +11,7 @@ HFILES = init.h io.h
>  CFILES = init.c \
>  	attr.c bmap.c cowextsize.c encrypt.c file.c freeze.c fsync.c \
>  	getrusage.c imap.c link.c mmap.c open.c parent.c pread.c prealloc.c \
> -	pwrite.c reflink.c seek.c shutdown.c sync.c truncate.c utimes.c
> +	pwrite.c reflink.c seek.c shutdown.c stat.c sync.c truncate.c utimes.c
>  
>  LLDLIBS = $(LIBXCMD) $(LIBHANDLE) $(LIBPTHREAD)
>  LTDEPENDENCIES = $(LIBXCMD) $(LIBHANDLE)
> diff --git a/io/init.c b/io/init.c
> index 06002e6..c15a1e1 100644
> --- a/io/init.c
> +++ b/io/init.c
> @@ -86,6 +86,7 @@ init_commands(void)
>  	seek_init();
>  	sendfile_init();
>  	shutdown_init();
> +	stat_init();
>  	sync_init();
>  	sync_range_init();
>  	truncate_init();
> diff --git a/io/io.h b/io/io.h
> index c40aad0..952bdb8 100644
> --- a/io/io.h
> +++ b/io/io.h
> @@ -53,7 +53,7 @@ extern fileio_t		*filetable;	/* open file table */
>  extern int		filecount;	/* number of open files */
>  extern fileio_t		*file;		/* active file in file table */
>  extern int filelist_f(void);
> -
> +extern int stat_f(int argc, char **argv);
>  /*
>   * Memory mapped file regions
>   */
> @@ -112,6 +112,7 @@ extern void		pwrite_init(void);
>  extern void		quit_init(void);
>  extern void		seek_init(void);
>  extern void		shutdown_init(void);
> +extern void		stat_init(void);
>  extern void		sync_init(void);
>  extern void		truncate_init(void);
>  extern void		utimes_init(void);
> diff --git a/io/open.c b/io/open.c
> index 941fdc1..2ed55cf 100644
> --- a/io/open.c
> +++ b/io/open.c
> @@ -39,9 +39,7 @@
>  #endif
>  
>  static cmdinfo_t open_cmd;
> -static cmdinfo_t stat_cmd;
>  static cmdinfo_t close_cmd;
> -static cmdinfo_t statfs_cmd;
>  static cmdinfo_t chproj_cmd;
>  static cmdinfo_t lsproj_cmd;
>  static cmdinfo_t extsize_cmd;
> @@ -49,96 +47,6 @@ static cmdinfo_t inode_cmd;
>  static prid_t prid;
>  static long extsize;
>  
> -off64_t
> -filesize(void)
> -{
> -	struct stat	st;
> -
> -	if (fstat(file->fd, &st) < 0) {
> -		perror("fstat");
> -		return -1;
> -	}
> -	return st.st_size;
> -}
> -
> -static char *
> -filetype(mode_t mode)
> -{
> -	switch (mode & S_IFMT) {
> -	case S_IFSOCK:
> -		return _("socket");
> -	case S_IFDIR:
> -		return _("directory");
> -	case S_IFCHR:
> -		return _("char device");
> -	case S_IFBLK:
> -		return _("block device");
> -	case S_IFREG:
> -		return _("regular file");
> -	case S_IFLNK:
> -		return _("symbolic link");
> -	case S_IFIFO:
> -		return _("fifo");
> -	}
> -	return NULL;
> -}
> -
> -static int
> -stat_f(
> -	int		argc,
> -	char		**argv)
> -{
> -	struct dioattr	dio;
> -	struct fsxattr	fsx, fsxa;
> -	struct stat	st;
> -	int		verbose = (argc == 2 && !strcmp(argv[1], "-v"));
> -
> -	printf(_("fd.path = \"%s\"\n"), file->name);
> -	printf(_("fd.flags = %s,%s,%s%s%s%s%s\n"),
> -		file->flags & IO_OSYNC ? _("sync") : _("non-sync"),
> -		file->flags & IO_DIRECT ? _("direct") : _("non-direct"),
> -		file->flags & IO_READONLY ? _("read-only") : _("read-write"),
> -		file->flags & IO_REALTIME ? _(",real-time") : "",
> -		file->flags & IO_APPEND ? _(",append-only") : "",
> -		file->flags & IO_NONBLOCK ? _(",non-block") : "",
> -		file->flags & IO_TMPFILE ? _(",tmpfile") : "");
> -	if (fstat(file->fd, &st) < 0) {
> -		perror("fstat");
> -	} else {
> -		printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
> -		printf(_("stat.type = %s\n"), filetype(st.st_mode));
> -		printf(_("stat.size = %lld\n"), (long long)st.st_size);
> -		printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
> -		if (verbose) {
> -			printf(_("stat.atime = %s"), ctime(&st.st_atime));
> -			printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
> -			printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
> -		}
> -	}
> -	if (file->flags & IO_FOREIGN)
> -		return 0;
> -	if ((xfsctl(file->name, file->fd, FS_IOC_FSGETXATTR, &fsx)) < 0 ||
> -	    (xfsctl(file->name, file->fd, XFS_IOC_FSGETXATTRA, &fsxa)) < 0) {
> -		perror("FS_IOC_FSGETXATTR");
> -	} else {
> -		printf(_("fsxattr.xflags = 0x%x "), fsx.fsx_xflags);
> -		printxattr(fsx.fsx_xflags, verbose, 0, file->name, 1, 1);
> -		printf(_("fsxattr.projid = %u\n"), fsx.fsx_projid);
> -		printf(_("fsxattr.extsize = %u\n"), fsx.fsx_extsize);
> -		printf(_("fsxattr.cowextsize = %u\n"), fsx.fsx_cowextsize);
> -		printf(_("fsxattr.nextents = %u\n"), fsx.fsx_nextents);
> -		printf(_("fsxattr.naextents = %u\n"), fsxa.fsx_nextents);
> -	}
> -	if ((xfsctl(file->name, file->fd, XFS_IOC_DIOINFO, &dio)) < 0) {
> -		perror("XFS_IOC_DIOINFO");
> -	} else {
> -		printf(_("dioattr.mem = 0x%x\n"), dio.d_mem);
> -		printf(_("dioattr.miniosz = %u\n"), dio.d_miniosz);
> -		printf(_("dioattr.maxiosz = %u\n"), dio.d_maxiosz);
> -	}
> -	return 0;
> -}
> -
>  int
>  openfile(
>  	char		*path,
> @@ -697,58 +605,6 @@ extsize_f(
>  	return 0;
>  }
>  
> -static int
> -statfs_f(
> -	int			argc,
> -	char			**argv)
> -{
> -	struct xfs_fsop_counts	fscounts;
> -	struct xfs_fsop_geom	fsgeo;
> -	struct statfs		st;
> -
> -	printf(_("fd.path = \"%s\"\n"), file->name);
> -	if (platform_fstatfs(file->fd, &st) < 0) {
> -		perror("fstatfs");
> -	} else {
> -		printf(_("statfs.f_bsize = %lld\n"), (long long) st.f_bsize);
> -		printf(_("statfs.f_blocks = %lld\n"), (long long) st.f_blocks);
> -		printf(_("statfs.f_bavail = %lld\n"), (long long) st.f_bavail);
> -		printf(_("statfs.f_files = %lld\n"), (long long) st.f_files);
> -		printf(_("statfs.f_ffree = %lld\n"), (long long) st.f_ffree);
> -	}
> -	if (file->flags & IO_FOREIGN)
> -		return 0;
> -	if ((xfsctl(file->name, file->fd, XFS_IOC_FSGEOMETRY_V1, &fsgeo)) < 0) {
> -		perror("XFS_IOC_FSGEOMETRY_V1");
> -	} else {
> -		printf(_("geom.bsize = %u\n"), fsgeo.blocksize);
> -		printf(_("geom.agcount = %u\n"), fsgeo.agcount);
> -		printf(_("geom.agblocks = %u\n"), fsgeo.agblocks);
> -		printf(_("geom.datablocks = %llu\n"),
> -			(unsigned long long) fsgeo.datablocks);
> -		printf(_("geom.rtblocks = %llu\n"),
> -			(unsigned long long) fsgeo.rtblocks);
> -		printf(_("geom.rtextents = %llu\n"),
> -			(unsigned long long) fsgeo.rtextents);
> -		printf(_("geom.rtextsize = %u\n"), fsgeo.rtextsize);
> -		printf(_("geom.sunit = %u\n"), fsgeo.sunit);
> -		printf(_("geom.swidth = %u\n"), fsgeo.swidth);
> -	}
> -	if ((xfsctl(file->name, file->fd, XFS_IOC_FSCOUNTS, &fscounts)) < 0) {
> -		perror("XFS_IOC_FSCOUNTS");
> -	} else {
> -		printf(_("counts.freedata = %llu\n"),
> -			(unsigned long long) fscounts.freedata);
> -		printf(_("counts.freertx = %llu\n"),
> -			(unsigned long long) fscounts.freertx);
> -		printf(_("counts.freeino = %llu\n"),
> -			(unsigned long long) fscounts.freeino);
> -		printf(_("counts.allocino = %llu\n"),
> -			(unsigned long long) fscounts.allocino);
> -	}
> -	return 0;
> -}
> -
>  static void
>  inode_help(void)
>  {
> @@ -920,14 +776,6 @@ open_init(void)
>  	open_cmd.oneline = _("open the file specified by path");
>  	open_cmd.help = open_help;
>  
> -	stat_cmd.name = "stat";
> -	stat_cmd.cfunc = stat_f;
> -	stat_cmd.argmin = 0;
> -	stat_cmd.argmax = 1;
> -	stat_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> -	stat_cmd.args = _("[-v]");
> -	stat_cmd.oneline = _("statistics on the currently open file");
> -
>  	close_cmd.name = "close";
>  	close_cmd.altname = "c";
>  	close_cmd.cfunc = close_f;
> @@ -936,12 +784,6 @@ open_init(void)
>  	close_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK | CMD_FLAG_ONESHOT;
>  	close_cmd.oneline = _("close the current open file");
>  
> -	statfs_cmd.name = "statfs";
> -	statfs_cmd.cfunc = statfs_f;
> -	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> -	statfs_cmd.oneline =
> -		_("statistics on the filesystem of the currently open file");
> -
>  	chproj_cmd.name = "chproj";
>  	chproj_cmd.cfunc = chproj_f;
>  	chproj_cmd.args = _("[-D | -R] projid");
> @@ -983,9 +825,7 @@ open_init(void)
>  	inode_cmd.help = inode_help;
>  
>  	add_command(&open_cmd);
> -	add_command(&stat_cmd);
>  	add_command(&close_cmd);
> -	add_command(&statfs_cmd);
>  	add_command(&chproj_cmd);
>  	add_command(&lsproj_cmd);
>  	add_command(&extsize_cmd);
> diff --git a/io/stat.c b/io/stat.c
> new file mode 100644
> index 0000000..3ae9903
> --- /dev/null
> +++ b/io/stat.c
> @@ -0,0 +1,189 @@
> +/*
> + * Copyright (c) 2003-2005 Silicon Graphics, Inc.
> + * All Rights Reserved.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it would be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write the Free Software Foundation,
> + * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
> + */
> +
> +#include "command.h"
> +#include "input.h"
> +#include "init.h"
> +#include "io.h"
> +#include "libxfs.h"
> +
> +static cmdinfo_t stat_cmd;
> +static cmdinfo_t statfs_cmd;
> +
> +off64_t
> +filesize(void)
> +{
> +	struct stat	st;
> +
> +	if (fstat(file->fd, &st) < 0) {
> +		perror("fstat");
> +		return -1;
> +	}
> +	return st.st_size;
> +}
> +
> +static char *
> +filetype(mode_t mode)
> +{
> +	switch (mode & S_IFMT) {
> +	case S_IFSOCK:
> +		return _("socket");
> +	case S_IFDIR:
> +		return _("directory");
> +	case S_IFCHR:
> +		return _("char device");
> +	case S_IFBLK:
> +		return _("block device");
> +	case S_IFREG:
> +		return _("regular file");
> +	case S_IFLNK:
> +		return _("symbolic link");
> +	case S_IFIFO:
> +		return _("fifo");
> +	}
> +	return NULL;
> +}
> +
> +int
> +stat_f(
> +	int		argc,
> +	char		**argv)
> +{
> +	struct dioattr	dio;
> +	struct fsxattr	fsx, fsxa;
> +	struct stat	st;
> +	int		verbose = (argc == 2 && !strcmp(argv[1], "-v"));
> +
> +	printf(_("fd.path = \"%s\"\n"), file->name);
> +	printf(_("fd.flags = %s,%s,%s%s%s%s%s\n"),
> +		file->flags & IO_OSYNC ? _("sync") : _("non-sync"),
> +		file->flags & IO_DIRECT ? _("direct") : _("non-direct"),
> +		file->flags & IO_READONLY ? _("read-only") : _("read-write"),
> +		file->flags & IO_REALTIME ? _(",real-time") : "",
> +		file->flags & IO_APPEND ? _(",append-only") : "",
> +		file->flags & IO_NONBLOCK ? _(",non-block") : "",
> +		file->flags & IO_TMPFILE ? _(",tmpfile") : "");
> +	if (fstat(file->fd, &st) < 0) {
> +		perror("fstat");
> +	} else {
> +		printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
> +		printf(_("stat.type = %s\n"), filetype(st.st_mode));
> +		printf(_("stat.size = %lld\n"), (long long)st.st_size);
> +		printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
> +		if (verbose) {
> +			printf(_("stat.atime = %s"), ctime(&st.st_atime));
> +			printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
> +			printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
> +		}
> +	}
> +	if (file->flags & IO_FOREIGN)
> +		return 0;
> +	if ((xfsctl(file->name, file->fd, FS_IOC_FSGETXATTR, &fsx)) < 0 ||
> +	    (xfsctl(file->name, file->fd, XFS_IOC_FSGETXATTRA, &fsxa)) < 0) {
> +		perror("FS_IOC_FSGETXATTR");
> +	} else {
> +		printf(_("fsxattr.xflags = 0x%x "), fsx.fsx_xflags);
> +		printxattr(fsx.fsx_xflags, verbose, 0, file->name, 1, 1);
> +		printf(_("fsxattr.projid = %u\n"), fsx.fsx_projid);
> +		printf(_("fsxattr.extsize = %u\n"), fsx.fsx_extsize);
> +		printf(_("fsxattr.cowextsize = %u\n"), fsx.fsx_cowextsize);
> +		printf(_("fsxattr.nextents = %u\n"), fsx.fsx_nextents);
> +		printf(_("fsxattr.naextents = %u\n"), fsxa.fsx_nextents);
> +	}
> +	if ((xfsctl(file->name, file->fd, XFS_IOC_DIOINFO, &dio)) < 0) {
> +		perror("XFS_IOC_DIOINFO");
> +	} else {
> +		printf(_("dioattr.mem = 0x%x\n"), dio.d_mem);
> +		printf(_("dioattr.miniosz = %u\n"), dio.d_miniosz);
> +		printf(_("dioattr.maxiosz = %u\n"), dio.d_maxiosz);
> +	}
> +	return 0;
> +}
> +
> +static int
> +statfs_f(
> +	int			argc,
> +	char			**argv)
> +{
> +	struct xfs_fsop_counts	fscounts;
> +	struct xfs_fsop_geom	fsgeo;
> +	struct statfs		st;
> +
> +	printf(_("fd.path = \"%s\"\n"), file->name);
> +	if (platform_fstatfs(file->fd, &st) < 0) {
> +		perror("fstatfs");
> +	} else {
> +		printf(_("statfs.f_bsize = %lld\n"), (long long) st.f_bsize);
> +		printf(_("statfs.f_blocks = %lld\n"), (long long) st.f_blocks);
> +		printf(_("statfs.f_bavail = %lld\n"), (long long) st.f_bavail);
> +		printf(_("statfs.f_files = %lld\n"), (long long) st.f_files);
> +		printf(_("statfs.f_ffree = %lld\n"), (long long) st.f_ffree);
> +	}
> +	if (file->flags & IO_FOREIGN)
> +		return 0;
> +	if ((xfsctl(file->name, file->fd, XFS_IOC_FSGEOMETRY_V1, &fsgeo)) < 0) {
> +		perror("XFS_IOC_FSGEOMETRY_V1");
> +	} else {
> +		printf(_("geom.bsize = %u\n"), fsgeo.blocksize);
> +		printf(_("geom.agcount = %u\n"), fsgeo.agcount);
> +		printf(_("geom.agblocks = %u\n"), fsgeo.agblocks);
> +		printf(_("geom.datablocks = %llu\n"),
> +			(unsigned long long) fsgeo.datablocks);
> +		printf(_("geom.rtblocks = %llu\n"),
> +			(unsigned long long) fsgeo.rtblocks);
> +		printf(_("geom.rtextents = %llu\n"),
> +			(unsigned long long) fsgeo.rtextents);
> +		printf(_("geom.rtextsize = %u\n"), fsgeo.rtextsize);
> +		printf(_("geom.sunit = %u\n"), fsgeo.sunit);
> +		printf(_("geom.swidth = %u\n"), fsgeo.swidth);
> +	}
> +	if ((xfsctl(file->name, file->fd, XFS_IOC_FSCOUNTS, &fscounts)) < 0) {
> +		perror("XFS_IOC_FSCOUNTS");
> +	} else {
> +		printf(_("counts.freedata = %llu\n"),
> +			(unsigned long long) fscounts.freedata);
> +		printf(_("counts.freertx = %llu\n"),
> +			(unsigned long long) fscounts.freertx);
> +		printf(_("counts.freeino = %llu\n"),
> +			(unsigned long long) fscounts.freeino);
> +		printf(_("counts.allocino = %llu\n"),
> +			(unsigned long long) fscounts.allocino);
> +	}
> +	return 0;
> +}
> +
> +void
> +stat_init(void)
> +{
> +	stat_cmd.name = "stat";
> +	stat_cmd.cfunc = stat_f;
> +	stat_cmd.argmin = 0;
> +	stat_cmd.argmax = 1;
> +	stat_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> +	stat_cmd.args = _("[-v]");
> +	stat_cmd.oneline = _("statistics on the currently open file");
> +
> +	statfs_cmd.name = "statfs";
> +	statfs_cmd.cfunc = statfs_f;
> +	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> +	statfs_cmd.oneline =
> +		_("statistics on the filesystem of the currently open file");
> +
> +	add_command(&stat_cmd);
> +	add_command(&statfs_cmd);
> +}
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 2/3] xfs_io: refactor stat functions, add raw dump

[Eric Sandeen]

This adds a "-r" raw structure dump to stat options, and
factors the code a bit; statx will also use print_file_info
and print_xfs_info.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

diff --git a/io/stat.c b/io/stat.c
index 3ae9903..770f3c7 100644
--- a/io/stat.c
+++ b/io/stat.c
@@ -59,16 +59,32 @@ filetype(mode_t mode)
 	return NULL;
 }
 
-int
-stat_f(
-	int		argc,
-	char		**argv)
+static int
+dump_raw_stat(struct stat *st)
 {
-	struct dioattr	dio;
-	struct fsxattr	fsx, fsxa;
-	struct stat	st;
-	int		verbose = (argc == 2 && !strcmp(argv[1], "-v"));
+	printf("stat.blksize = %lu\n", st->st_blksize);
+	printf("stat.nlink = %lu\n", st->st_nlink);
+	printf("stat.uid = %u\n", st->st_uid);
+	printf("stat.gid = %u\n", st->st_gid);
+	printf("stat.mode: 0%o\n", st->st_mode);
+	printf("stat.ino = %lu\n", st->st_ino);
+	printf("stat.size = %lu\n", st->st_size);
+	printf("stat.blocks = %lu\n", st->st_blocks);
+	printf("stat.atime.tv_sec = %ld\n", st->st_atim.tv_sec);
+	printf("stat.atime.tv_nsec = %ld\n", st->st_atim.tv_nsec);
+	printf("stat.ctime.tv_sec = %ld\n", st->st_ctim.tv_sec);
+	printf("stat.ctime.tv_nsec = %ld\n", st->st_ctim.tv_nsec);
+	printf("stat.mtime.tv_sec = %ld\n", st->st_mtim.tv_sec);
+	printf("stat.mtime.tv_nsec = %ld\n", st->st_mtim.tv_nsec);
+	printf("stat.rdev_major = %u\n", major(st->st_rdev));
+	printf("stat.rdev_minor = %u\n", minor(st->st_rdev));
+	printf("stat.dev_major = %u\n", major(st->st_dev));
+	printf("stat.dev_minor = %u\n", minor(st->st_dev));
+	return 0;
+}
 
+void print_file_info(void)
+{
 	printf(_("fd.path = \"%s\"\n"), file->name);
 	printf(_("fd.flags = %s,%s,%s%s%s%s%s\n"),
 		file->flags & IO_OSYNC ? _("sync") : _("non-sync"),
@@ -78,21 +94,13 @@ stat_f(
 		file->flags & IO_APPEND ? _(",append-only") : "",
 		file->flags & IO_NONBLOCK ? _(",non-block") : "",
 		file->flags & IO_TMPFILE ? _(",tmpfile") : "");
-	if (fstat(file->fd, &st) < 0) {
-		perror("fstat");
-	} else {
-		printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
-		printf(_("stat.type = %s\n"), filetype(st.st_mode));
-		printf(_("stat.size = %lld\n"), (long long)st.st_size);
-		printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
-		if (verbose) {
-			printf(_("stat.atime = %s"), ctime(&st.st_atime));
-			printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
-			printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
-		}
-	}
-	if (file->flags & IO_FOREIGN)
-		return 0;
+}
+
+void print_xfs_info(int verbose)
+{
+	struct dioattr	dio;
+	struct fsxattr	fsx, fsxa;
+
 	if ((xfsctl(file->name, file->fd, FS_IOC_FSGETXATTR, &fsx)) < 0 ||
 	    (xfsctl(file->name, file->fd, XFS_IOC_FSGETXATTRA, &fsxa)) < 0) {
 		perror("FS_IOC_FSGETXATTR");
@@ -112,6 +120,57 @@ stat_f(
 		printf(_("dioattr.miniosz = %u\n"), dio.d_miniosz);
 		printf(_("dioattr.maxiosz = %u\n"), dio.d_maxiosz);
 	}
+}
+
+int
+stat_f(
+	int		argc,
+	char		**argv)
+{
+	struct stat	st;
+	int		c, verbose = 0, raw = 0;
+
+	while ((c = getopt(argc, argv, "rv")) != EOF) {
+		switch (c) {
+		case 'r':
+			raw = 1;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		default:
+			return command_usage(&stat_cmd);
+		}
+	}
+
+	if (raw && verbose)
+		return command_usage(&stat_cmd);
+
+	if (fstat(file->fd, &st) < 0) {
+		perror("fstat");
+		return 0;
+	}
+
+	if (raw)
+		return dump_raw_stat(&st);
+
+	print_file_info();
+
+	printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
+	printf(_("stat.type = %s\n"), filetype(st.st_mode));
+	printf(_("stat.size = %lld\n"), (long long)st.st_size);
+	printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
+	if (verbose) {
+		printf(_("stat.atime = %s"), ctime(&st.st_atime));
+		printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
+		printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
+	}
+
+	if (file->flags & IO_FOREIGN)
+		return 0;
+
+	print_xfs_info(verbose);
+
 	return 0;
 }
 
@@ -175,7 +234,7 @@ stat_init(void)
 	stat_cmd.argmin = 0;
 	stat_cmd.argmax = 1;
 	stat_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
-	stat_cmd.args = _("[-v]");
+	stat_cmd.args = _("[-v|-r]");
 	stat_cmd.oneline = _("statistics on the currently open file");
 
 	statfs_cmd.name = "statfs";
diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
index 19e1ae4..e384327 100644
--- a/man/man8/xfs_io.8
+++ b/man/man8/xfs_io.8
@@ -872,13 +872,15 @@ Only available in expert mode and requires privileges.
 Force the filesystem to shutdown (with or without flushing the log).
 Only available in expert mode and requires privileges.
 .TP
-.BR stat " [ " \-v " ]"
+.BR stat " [ " \-v "|" \-r " ]"
 Selected statistics from
 .BR stat (2)
 and the XFS_IOC_GETXATTR system call on the current file. If the
 .B \-v
 option is specified, the atime (last access), mtime
-(last modify), and ctime (last change) timestamps are also displayed.
+(last modify), and ctime (last change) timestamps are also displayed.  The
+.B \-r
+option dumps raw fields from the stat structure.
 .TP
 .B statfs
 Selected statistics from

Re: [PATCH 2/3] xfs_io: refactor stat functions, add raw dump

[Darrick J. Wong]

On Thu, Apr 06, 2017 at 01:48:50PM -0500, Eric Sandeen wrote:
> This adds a "-r" raw structure dump to stat options, and
> factors the code a bit; statx will also use print_file_info
> and print_xfs_info.
> 
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> 
> diff --git a/io/stat.c b/io/stat.c
> index 3ae9903..770f3c7 100644
> --- a/io/stat.c
> +++ b/io/stat.c
> @@ -59,16 +59,32 @@ filetype(mode_t mode)
>  	return NULL;
>  }
>  
> -int
> -stat_f(
> -	int		argc,
> -	char		**argv)
> +static int
> +dump_raw_stat(struct stat *st)
>  {
> -	struct dioattr	dio;
> -	struct fsxattr	fsx, fsxa;
> -	struct stat	st;
> -	int		verbose = (argc == 2 && !strcmp(argv[1], "-v"));
> +	printf("stat.blksize = %lu\n", st->st_blksize);
> +	printf("stat.nlink = %lu\n", st->st_nlink);
> +	printf("stat.uid = %u\n", st->st_uid);
> +	printf("stat.gid = %u\n", st->st_gid);
> +	printf("stat.mode: 0%o\n", st->st_mode);
> +	printf("stat.ino = %lu\n", st->st_ino);
> +	printf("stat.size = %lu\n", st->st_size);
> +	printf("stat.blocks = %lu\n", st->st_blocks);
> +	printf("stat.atime.tv_sec = %ld\n", st->st_atim.tv_sec);
> +	printf("stat.atime.tv_nsec = %ld\n", st->st_atim.tv_nsec);
> +	printf("stat.ctime.tv_sec = %ld\n", st->st_ctim.tv_sec);
> +	printf("stat.ctime.tv_nsec = %ld\n", st->st_ctim.tv_nsec);
> +	printf("stat.mtime.tv_sec = %ld\n", st->st_mtim.tv_sec);
> +	printf("stat.mtime.tv_nsec = %ld\n", st->st_mtim.tv_nsec);
> +	printf("stat.rdev_major = %u\n", major(st->st_rdev));
> +	printf("stat.rdev_minor = %u\n", minor(st->st_rdev));
> +	printf("stat.dev_major = %u\n", major(st->st_dev));
> +	printf("stat.dev_minor = %u\n", minor(st->st_dev));
> +	return 0;
> +}
>  
> +void print_file_info(void)
> +{
>  	printf(_("fd.path = \"%s\"\n"), file->name);
>  	printf(_("fd.flags = %s,%s,%s%s%s%s%s\n"),
>  		file->flags & IO_OSYNC ? _("sync") : _("non-sync"),
> @@ -78,21 +94,13 @@ stat_f(
>  		file->flags & IO_APPEND ? _(",append-only") : "",
>  		file->flags & IO_NONBLOCK ? _(",non-block") : "",
>  		file->flags & IO_TMPFILE ? _(",tmpfile") : "");
> -	if (fstat(file->fd, &st) < 0) {
> -		perror("fstat");
> -	} else {
> -		printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
> -		printf(_("stat.type = %s\n"), filetype(st.st_mode));
> -		printf(_("stat.size = %lld\n"), (long long)st.st_size);
> -		printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
> -		if (verbose) {
> -			printf(_("stat.atime = %s"), ctime(&st.st_atime));
> -			printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
> -			printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
> -		}
> -	}
> -	if (file->flags & IO_FOREIGN)
> -		return 0;
> +}
> +
> +void print_xfs_info(int verbose)
> +{
> +	struct dioattr	dio;
> +	struct fsxattr	fsx, fsxa;
> +
>  	if ((xfsctl(file->name, file->fd, FS_IOC_FSGETXATTR, &fsx)) < 0 ||
>  	    (xfsctl(file->name, file->fd, XFS_IOC_FSGETXATTRA, &fsxa)) < 0) {
>  		perror("FS_IOC_FSGETXATTR");
> @@ -112,6 +120,57 @@ stat_f(
>  		printf(_("dioattr.miniosz = %u\n"), dio.d_miniosz);
>  		printf(_("dioattr.maxiosz = %u\n"), dio.d_maxiosz);
>  	}
> +}
> +
> +int
> +stat_f(
> +	int		argc,
> +	char		**argv)
> +{
> +	struct stat	st;
> +	int		c, verbose = 0, raw = 0;
> +
> +	while ((c = getopt(argc, argv, "rv")) != EOF) {
> +		switch (c) {
> +		case 'r':
> +			raw = 1;
> +			break;
> +		case 'v':
> +			verbose = 1;
> +			break;
> +		default:
> +			return command_usage(&stat_cmd);
> +		}
> +	}
> +
> +	if (raw && verbose)
> +		return command_usage(&stat_cmd);
> +
> +	if (fstat(file->fd, &st) < 0) {
> +		perror("fstat");
> +		return 0;
> +	}
> +
> +	if (raw)
> +		return dump_raw_stat(&st);
> +
> +	print_file_info();
> +
> +	printf(_("stat.ino = %lld\n"), (long long)st.st_ino);
> +	printf(_("stat.type = %s\n"), filetype(st.st_mode));
> +	printf(_("stat.size = %lld\n"), (long long)st.st_size);
> +	printf(_("stat.blocks = %lld\n"), (long long)st.st_blocks);
> +	if (verbose) {
> +		printf(_("stat.atime = %s"), ctime(&st.st_atime));
> +		printf(_("stat.mtime = %s"), ctime(&st.st_mtime));
> +		printf(_("stat.ctime = %s"), ctime(&st.st_ctime));
> +	}
> +
> +	if (file->flags & IO_FOREIGN)
> +		return 0;
> +
> +	print_xfs_info(verbose);
> +
>  	return 0;
>  }
>  
> @@ -175,7 +234,7 @@ stat_init(void)
>  	stat_cmd.argmin = 0;
>  	stat_cmd.argmax = 1;
>  	stat_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> -	stat_cmd.args = _("[-v]");
> +	stat_cmd.args = _("[-v|-r]");
>  	stat_cmd.oneline = _("statistics on the currently open file");
>  
>  	statfs_cmd.name = "statfs";
> diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
> index 19e1ae4..e384327 100644
> --- a/man/man8/xfs_io.8
> +++ b/man/man8/xfs_io.8
> @@ -872,13 +872,15 @@ Only available in expert mode and requires privileges.
>  Force the filesystem to shutdown (with or without flushing the log).
>  Only available in expert mode and requires privileges.
>  .TP
> -.BR stat " [ " \-v " ]"
> +.BR stat " [ " \-v "|" \-r " ]"
>  Selected statistics from
>  .BR stat (2)
>  and the XFS_IOC_GETXATTR system call on the current file. If the
>  .B \-v
>  option is specified, the atime (last access), mtime
> -(last modify), and ctime (last change) timestamps are also displayed.
> +(last modify), and ctime (last change) timestamps are also displayed.  The
> +.B \-r
> +option dumps raw fields from the stat structure.
>  .TP
>  .B statfs
>  Selected statistics from
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 3/3] xfs_io: hook up statx

[Eric Sandeen]

Wire up the statx syscall to xfs_io.

xfs_io> help statx
statx [-v|-r][-m basic | -m all | -m <mask>][-FD] -- extended statistics on the currently open file

 Display extended file status.

 Options:
 -v -- More verbose output
 -r -- Print raw statx structure fields
 -m mask -- Specify the field mask for the statx call
            (can also be 'basic' or 'all'; default STATX_ALL)
 -D -- Don't sync attributes with the server
 -F -- Force the attributes to be sync'd with the server

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

V3: remove -A, -L, and -O options
allow "basic" and "all" masks
change raw dump format to match stat raw format
make -r and -v exclusive
follow factoring of stat_f()


diff --git a/io/stat.c b/io/stat.c
index 770f3c7..64d4638 100644
--- a/io/stat.c
+++ b/io/stat.c
@@ -2,6 +2,9 @@
  * Copyright (c) 2003-2005 Silicon Graphics, Inc.
  * All Rights Reserved.
  *
+ * Copyright (C) 2015, 2017 Red Hat, Inc.
+ * Portions of statx support written by David Howells (dhowells@redhat.com)
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation.
@@ -20,10 +23,14 @@
 #include "input.h"
 #include "init.h"
 #include "io.h"
+#include "statx.h"
 #include "libxfs.h"
 
+#include <fcntl.h>
+
 static cmdinfo_t stat_cmd;
 static cmdinfo_t statfs_cmd;
+static cmdinfo_t statx_cmd;
 
 off64_t
 filesize(void)
@@ -226,6 +233,146 @@ statfs_f(
 	return 0;
 }
 
+static ssize_t
+_statx(int dfd, const char *filename, unsigned flags,
+      unsigned int mask, struct statx *buffer)
+{
+	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
+}
+
+static void
+statx_help(void)
+{
+        printf(_(
+"\n"
+" Display extended file status.\n"
+"\n"
+" Options:\n"
+" -v -- More verbose output\n"
+" -r -- Print raw statx structure fields\n"
+" -m mask -- Specify the field mask for the statx call\n"
+"            (can also be 'basic' or 'all'; default STATX_ALL)\n"
+" -D -- Don't sync attributes with the server\n"
+" -F -- Force the attributes to be sync'd with the server\n"
+"\n"));
+}
+
+/* statx helper */
+static int
+dump_raw_statx(struct statx *stx)
+{
+	printf("stat.mask = 0x%x\n", stx->stx_mask);
+	printf("stat.blksize = %u\n", stx->stx_blksize);
+	printf("stat.attributes = 0x%llx\n", stx->stx_attributes);
+	printf("stat.nlink = %u\n", stx->stx_nlink);
+	printf("stat.uid = %u\n", stx->stx_uid);
+	printf("stat.gid = %u\n", stx->stx_gid);
+	printf("stat.mode: 0%o\n", stx->stx_mode);
+	printf("stat.ino = %llu\n", stx->stx_ino);
+	printf("stat.size = %llu\n", stx->stx_size);
+	printf("stat.blocks = %llu\n", stx->stx_blocks);
+	printf("stat.atime.tv_sec = %lld\n", stx->stx_atime.tv_sec);
+	printf("stat.atime.tv_nsec = %d\n", stx->stx_atime.tv_nsec);
+	printf("stat.btime.tv_sec = %lld\n", stx->stx_btime.tv_sec);
+	printf("stat.btime.tv_nsec = %d\n", stx->stx_btime.tv_nsec);
+	printf("stat.ctime.tv_sec = %lld\n", stx->stx_ctime.tv_sec);
+	printf("stat.ctime.tv_nsec = %d\n", stx->stx_ctime.tv_nsec);
+	printf("stat.mtime.tv_sec = %lld\n", stx->stx_mtime.tv_sec);
+	printf("stat.mtime.tv_nsec = %d\n", stx->stx_mtime.tv_nsec);
+	printf("stat.rdev_major = %u\n", stx->stx_rdev_major);
+	printf("stat.rdev_minor = %u\n", stx->stx_rdev_minor);
+	printf("stat.dev_major = %u\n", stx->stx_dev_major);
+	printf("stat.dev_minor = %u\n", stx->stx_dev_minor);
+	return 0;
+}
+
+/*
+ * options:
+ * 	- input flags - query type
+ * 	- output style for flags (and all else?) (chars vs. hex?)
+ * 	- output - mask out incidental flag or not?
+ */
+int
+statx_f(
+	int		argc,
+	char		**argv)
+{
+	int		c, verbose = 0, raw = 0;
+	char		*p;
+	struct statx	stx;
+	int		atflag = 0;
+	unsigned int	mask = STATX_ALL;
+
+	while ((c = getopt(argc, argv, "m:rvFD")) != EOF) {
+		switch (c) {
+		case 'm':
+			if (strcmp(optarg, "basic") == 0)
+				mask = STATX_BASIC_STATS;
+			else if (strcmp(optarg, "all") == 0)
+				mask = STATX_ALL;
+			else {
+				mask = strtoul(optarg, &p, 0);
+				if (!p || p == optarg) {
+					printf(
+				_("non-numeric mask -- %s\n"), optarg);
+					return 0;
+				}
+			}
+			break;
+		case 'r':
+			raw = 1;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 'F':
+			atflag &= ~AT_STATX_SYNC_TYPE;
+			atflag |= AT_STATX_FORCE_SYNC;
+			break;
+		case 'D':
+			atflag &= ~AT_STATX_SYNC_TYPE;
+			atflag |= AT_STATX_DONT_SYNC;
+			break;
+		default:
+			return command_usage(&statx_cmd);
+		}
+	}
+
+	if (raw && verbose)
+		return command_usage(&statx_cmd);
+
+	memset(&stx, 0xbf, sizeof(stx));
+	if (_statx(file->fd, NULL, atflag, mask, &stx) < 0) {
+		perror("statx");
+		return 0;
+	}
+
+	if (raw)
+		return dump_raw_statx(&stx);
+
+	print_file_info();
+
+	printf(_("stat.ino = %lld\n"), (long long)stx.stx_ino);
+	printf(_("stat.type = %s\n"), filetype(stx.stx_mode));
+	printf(_("stat.size = %lld\n"), (long long)stx.stx_size);
+	printf(_("stat.blocks = %lld\n"), (long long)stx.stx_blocks);
+	if (verbose) {
+		printf(_("stat.atime = %s"), ctime((time_t *)&stx.stx_atime.tv_sec));
+		printf(_("stat.mtime = %s"), ctime((time_t *)&stx.stx_mtime.tv_sec));
+		printf(_("stat.ctime = %s"), ctime((time_t *)&stx.stx_ctime.tv_sec));
+		if (stx.stx_mask & STATX_BTIME)
+			printf(_("stat.btime = %s"),
+				ctime((time_t *)&stx.stx_btime.tv_sec));
+	}
+
+	if (file->flags & IO_FOREIGN)
+		return 0;
+
+	print_xfs_info(verbose);
+
+	return 0;
+}
+
 void
 stat_init(void)
 {
@@ -237,6 +384,15 @@ stat_init(void)
 	stat_cmd.args = _("[-v|-r]");
 	stat_cmd.oneline = _("statistics on the currently open file");
 
+	statx_cmd.name = "statx";
+	statx_cmd.cfunc = statx_f;
+	statx_cmd.argmin = 0;
+	statx_cmd.argmax = -1;
+	statx_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
+	statx_cmd.args = _("[-v|-r][-m basic | -m all | -m <mask>][-FD]");
+	statx_cmd.oneline = _("extended statistics on the currently open file");
+	statx_cmd.help = statx_help;
+
 	statfs_cmd.name = "statfs";
 	statfs_cmd.cfunc = statfs_f;
 	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
@@ -244,5 +400,6 @@ stat_init(void)
 		_("statistics on the filesystem of the currently open file");
 
 	add_command(&stat_cmd);
+	add_command(&statx_cmd);
 	add_command(&statfs_cmd);
 }
diff --git a/io/statx.h b/io/statx.h
new file mode 100644
index 0000000..729a147
--- /dev/null
+++ b/io/statx.h
@@ -0,0 +1,158 @@
+#ifndef XFS_IO_STATX_H
+#define XFS_IO_STATX_H
+
+#include <unistd.h>
+
+#ifndef AT_STATX_SYNC_TYPE
+#define AT_STATX_SYNC_TYPE      0x6000  /* Type of synchronisation required from statx() */
+#define AT_STATX_SYNC_AS_STAT   0x0000  /* - Do whatever stat() does */
+#define AT_STATX_FORCE_SYNC     0x2000  /* - Force the attributes to be sync'd with the server */
+#define AT_STATX_DONT_SYNC      0x4000  /* - Don't sync attributes with the server */
+#endif
+
+#ifndef AT_NO_AUTOMOUNT
+#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
+#endif
+
+#ifdef __i386__
+#define __NR_statx 383
+#elif defined (__ILP32__)
+#define __NR_statx (__X32_SYSCALL_BIT + 332)
+#else
+#define __NR_statx 332
+#endif
+
+#ifndef STATX_TYPE
+
+/*
+ * Timestamp structure for the timestamps in struct statx.
+ *
+ * tv_sec holds the number of seconds before (negative) or after (positive)
+ * 00:00:00 1st January 1970 UTC.
+ *
+ * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
+ * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
+ *
+ * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
+ * either be both positive or both negative.
+ *
+ * __reserved is held in case we need a yet finer resolution.
+ */
+struct statx_timestamp {
+	__s64	tv_sec;
+	__s32	tv_nsec;
+	__s32	__reserved;
+};
+
+/*
+ * Structures for the extended file attribute retrieval system call
+ * (statx()).
+ *
+ * The caller passes a mask of what they're specifically interested in as a
+ * parameter to statx().  What statx() actually got will be indicated in
+ * st_mask upon return.
+ *
+ * For each bit in the mask argument:
+ *
+ * - if the datum is not supported:
+ *
+ *   - the bit will be cleared, and
+ *
+ *   - the datum will be set to an appropriate fabricated value if one is
+ *     available (eg. CIFS can take a default uid and gid), otherwise
+ *
+ *   - the field will be cleared;
+ *
+ * - otherwise, if explicitly requested:
+ *
+ *   - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
+ *     set or if the datum is considered out of date, and
+ *
+ *   - the field will be filled in and the bit will be set;
+ *
+ * - otherwise, if not requested, but available in approximate form without any
+ *   effort, it will be filled in anyway, and the bit will be set upon return
+ *   (it might not be up to date, however, and no attempt will be made to
+ *   synchronise the internal state first);
+ *
+ * - otherwise the field and the bit will be cleared before returning.
+ *
+ * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
+ * will have values installed for compatibility purposes so that stat() and
+ * co. can be emulated in userspace.
+ */
+struct statx {
+	/* 0x00 */
+	__u32	stx_mask;	/* What results were written [uncond] */
+	__u32	stx_blksize;	/* Preferred general I/O size [uncond] */
+	__u64	stx_attributes;	/* Flags conveying information about the file [uncond] */
+	/* 0x10 */
+	__u32	stx_nlink;	/* Number of hard links */
+	__u32	stx_uid;	/* User ID of owner */
+	__u32	stx_gid;	/* Group ID of owner */
+	__u16	stx_mode;	/* File mode */
+	__u16	__spare0[1];
+	/* 0x20 */
+	__u64	stx_ino;	/* Inode number */
+	__u64	stx_size;	/* File size */
+	__u64	stx_blocks;	/* Number of 512-byte blocks allocated */
+	__u64	__spare1[1];
+	/* 0x40 */
+	struct statx_timestamp	stx_atime;	/* Last access time */
+	struct statx_timestamp	stx_btime;	/* File creation time */
+	struct statx_timestamp	stx_ctime;	/* Last attribute change time */
+	struct statx_timestamp	stx_mtime;	/* Last data modification time */
+	/* 0x80 */
+	__u32	stx_rdev_major;	/* Device ID of special file [if bdev/cdev] */
+	__u32	stx_rdev_minor;
+	__u32	stx_dev_major;	/* ID of device containing file [uncond] */
+	__u32	stx_dev_minor;
+	/* 0x90 */
+	__u64	__spare2[14];	/* Spare space for future expansion */
+	/* 0x100 */
+};
+
+/*
+ * Flags to be stx_mask
+ *
+ * Query request/result mask for statx() and struct statx::stx_mask.
+ *
+ * These bits should be set in the mask argument of statx() to request
+ * particular items when calling statx().
+ */
+#define STATX_TYPE		0x00000001U	/* Want/got stx_mode & S_IFMT */
+#define STATX_MODE		0x00000002U	/* Want/got stx_mode & ~S_IFMT */
+#define STATX_NLINK		0x00000004U	/* Want/got stx_nlink */
+#define STATX_UID		0x00000008U	/* Want/got stx_uid */
+#define STATX_GID		0x00000010U	/* Want/got stx_gid */
+#define STATX_ATIME		0x00000020U	/* Want/got stx_atime */
+#define STATX_MTIME		0x00000040U	/* Want/got stx_mtime */
+#define STATX_CTIME		0x00000080U	/* Want/got stx_ctime */
+#define STATX_INO		0x00000100U	/* Want/got stx_ino */
+#define STATX_SIZE		0x00000200U	/* Want/got stx_size */
+#define STATX_BLOCKS		0x00000400U	/* Want/got stx_blocks */
+#define STATX_BASIC_STATS	0x000007ffU	/* The stuff in the normal stat struct */
+#define STATX_BTIME		0x00000800U	/* Want/got stx_btime */
+#define STATX_ALL		0x00000fffU	/* All currently supported flags */
+
+/*
+ * Attributes to be found in stx_attributes
+ *
+ * These give information about the features or the state of a file that might
+ * be of use to ordinary userspace programs such as GUIs or ls rather than
+ * specialised tools.
+ *
+ * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
+ * semantically.  Where possible, the numerical value is picked to correspond
+ * also.
+ */
+#define STATX_ATTR_COMPRESSED		0x00000004 /* [I] File is compressed by the fs */
+#define STATX_ATTR_IMMUTABLE		0x00000010 /* [I] File is marked immutable */
+#define STATX_ATTR_APPEND		0x00000020 /* [I] File is append-only */
+#define STATX_ATTR_NODUMP		0x00000040 /* [I] File is not to be dumped */
+#define STATX_ATTR_ENCRYPTED		0x00000800 /* [I] File requires key to decrypt in fs */
+
+#define STATX_ATTR_AUTOMOUNT		0x00001000 /* Dir: Automount trigger */
+
+#endif /* STATX_TYPE */
+#endif /* XFS_IO_STATX_H */
diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
index e384327..f732216 100644
--- a/man/man8/xfs_io.8
+++ b/man/man8/xfs_io.8
@@ -882,6 +882,36 @@ option is specified, the atime (last access), mtime
 .B \-r
 option dumps raw fields from the stat structure.
 .TP
+.BI "statx [ \-v|\-r ][ \-m " basic " | \-m " all " | -m " <mask> " ][ \-FD ]"
+Selected statistics from
+.BR stat (2)
+and the XFS_IOC_GETXATTR system call on the current file.
+.RS 1.0i
+.PD 0
+.TP 0.4i
+.B \-v
+Show timestamps
+.TP
+.B \-r
+Dump raw statx structure values
+.TP
+.B \-m basic 
+Set the field mask for the statx call to STATX_BASIC_STATS
+.TP
+.B \-m all
+Set the the field mask for the statx call to STATX_ALL (default)
+.TP
+.B \-m <mask>
+Specify a numeric field mask for the statx call
+.TP
+.B \-F
+Force the attributes to be synced with the server
+.TP
+.B \-D
+Don't sync attributes with the server
+.PD
+.RE
+.TP
 .B statfs
 Selected statistics from
 .BR statfs (2)

[PATCH 3/3 V4] xfs_io: hook up statx

[Eric Sandeen]

Wire up the statx syscall to xfs_io.

xfs_io> help statx
statx [-v|-r][-m basic | -m all | -m <mask>][-FD] -- extended statistics on the currently open file

 Display extended file status.

 Options:
 -v -- More verbose output
 -r -- Print raw statx structure fields
 -m mask -- Specify the field mask for the statx call
            (can also be 'basic' or 'all'; default STATX_ALL)
 -D -- Don't sync attributes with the server
 -F -- Force the attributes to be sync'd with the server

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

V4: Fix up __NR_statx defines, handle it if not defined (ala dhowells testcase)
    fix trailing whitespace in manpage :)

V3: remove -A, -L, and -O options
allow "basic" and "all" masks
change raw dump format to match stat raw format
make -r and -v exclusive
follow factoring of stat_f()

diff --git a/io/stat.c b/io/stat.c
index 770f3c7..efd552f 100644
--- a/io/stat.c
+++ b/io/stat.c
@@ -2,6 +2,9 @@
  * Copyright (c) 2003-2005 Silicon Graphics, Inc.
  * All Rights Reserved.
  *
+ * Copyright (C) 2015, 2017 Red Hat, Inc.
+ * Portions of statx support written by David Howells (dhowells@redhat.com)
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation.
@@ -20,10 +23,14 @@
 #include "input.h"
 #include "init.h"
 #include "io.h"
+#include "statx.h"
 #include "libxfs.h"
 
+#include <fcntl.h>
+
 static cmdinfo_t stat_cmd;
 static cmdinfo_t statfs_cmd;
+static cmdinfo_t statx_cmd;
 
 off64_t
 filesize(void)
@@ -226,6 +233,151 @@ statfs_f(
 	return 0;
 }
 
+static ssize_t
+_statx(int dfd, const char *filename, unsigned flags,
+      unsigned int mask, struct statx *buffer)
+{
+#ifdef __NR_statx
+	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
+#else
+	errno = ENOSYS;
+	return -1;
+#endif
+}
+
+static void
+statx_help(void)
+{
+        printf(_(
+"\n"
+" Display extended file status.\n"
+"\n"
+" Options:\n"
+" -v -- More verbose output\n"
+" -r -- Print raw statx structure fields\n"
+" -m mask -- Specify the field mask for the statx call\n"
+"            (can also be 'basic' or 'all'; default STATX_ALL)\n"
+" -D -- Don't sync attributes with the server\n"
+" -F -- Force the attributes to be sync'd with the server\n"
+"\n"));
+}
+
+/* statx helper */
+static int
+dump_raw_statx(struct statx *stx)
+{
+	printf("stat.mask = 0x%x\n", stx->stx_mask);
+	printf("stat.blksize = %u\n", stx->stx_blksize);
+	printf("stat.attributes = 0x%llx\n", stx->stx_attributes);
+	printf("stat.nlink = %u\n", stx->stx_nlink);
+	printf("stat.uid = %u\n", stx->stx_uid);
+	printf("stat.gid = %u\n", stx->stx_gid);
+	printf("stat.mode: 0%o\n", stx->stx_mode);
+	printf("stat.ino = %llu\n", stx->stx_ino);
+	printf("stat.size = %llu\n", stx->stx_size);
+	printf("stat.blocks = %llu\n", stx->stx_blocks);
+	printf("stat.atime.tv_sec = %lld\n", stx->stx_atime.tv_sec);
+	printf("stat.atime.tv_nsec = %d\n", stx->stx_atime.tv_nsec);
+	printf("stat.btime.tv_sec = %lld\n", stx->stx_btime.tv_sec);
+	printf("stat.btime.tv_nsec = %d\n", stx->stx_btime.tv_nsec);
+	printf("stat.ctime.tv_sec = %lld\n", stx->stx_ctime.tv_sec);
+	printf("stat.ctime.tv_nsec = %d\n", stx->stx_ctime.tv_nsec);
+	printf("stat.mtime.tv_sec = %lld\n", stx->stx_mtime.tv_sec);
+	printf("stat.mtime.tv_nsec = %d\n", stx->stx_mtime.tv_nsec);
+	printf("stat.rdev_major = %u\n", stx->stx_rdev_major);
+	printf("stat.rdev_minor = %u\n", stx->stx_rdev_minor);
+	printf("stat.dev_major = %u\n", stx->stx_dev_major);
+	printf("stat.dev_minor = %u\n", stx->stx_dev_minor);
+	return 0;
+}
+
+/*
+ * options:
+ * 	- input flags - query type
+ * 	- output style for flags (and all else?) (chars vs. hex?)
+ * 	- output - mask out incidental flag or not?
+ */
+int
+statx_f(
+	int		argc,
+	char		**argv)
+{
+	int		c, verbose = 0, raw = 0;
+	char		*p;
+	struct statx	stx;
+	int		atflag = 0;
+	unsigned int	mask = STATX_ALL;
+
+	while ((c = getopt(argc, argv, "m:rvFD")) != EOF) {
+		switch (c) {
+		case 'm':
+			if (strcmp(optarg, "basic") == 0)
+				mask = STATX_BASIC_STATS;
+			else if (strcmp(optarg, "all") == 0)
+				mask = STATX_ALL;
+			else {
+				mask = strtoul(optarg, &p, 0);
+				if (!p || p == optarg) {
+					printf(
+				_("non-numeric mask -- %s\n"), optarg);
+					return 0;
+				}
+			}
+			break;
+		case 'r':
+			raw = 1;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 'F':
+			atflag &= ~AT_STATX_SYNC_TYPE;
+			atflag |= AT_STATX_FORCE_SYNC;
+			break;
+		case 'D':
+			atflag &= ~AT_STATX_SYNC_TYPE;
+			atflag |= AT_STATX_DONT_SYNC;
+			break;
+		default:
+			return command_usage(&statx_cmd);
+		}
+	}
+
+	if (raw && verbose)
+		return command_usage(&statx_cmd);
+
+	memset(&stx, 0xbf, sizeof(stx));
+	if (_statx(file->fd, NULL, atflag, mask, &stx) < 0) {
+		perror("statx");
+		return 0;
+	}
+
+	if (raw)
+		return dump_raw_statx(&stx);
+
+	print_file_info();
+
+	printf(_("stat.ino = %lld\n"), (long long)stx.stx_ino);
+	printf(_("stat.type = %s\n"), filetype(stx.stx_mode));
+	printf(_("stat.size = %lld\n"), (long long)stx.stx_size);
+	printf(_("stat.blocks = %lld\n"), (long long)stx.stx_blocks);
+	if (verbose) {
+		printf(_("stat.atime = %s"), ctime((time_t *)&stx.stx_atime.tv_sec));
+		printf(_("stat.mtime = %s"), ctime((time_t *)&stx.stx_mtime.tv_sec));
+		printf(_("stat.ctime = %s"), ctime((time_t *)&stx.stx_ctime.tv_sec));
+		if (stx.stx_mask & STATX_BTIME)
+			printf(_("stat.btime = %s"),
+				ctime((time_t *)&stx.stx_btime.tv_sec));
+	}
+
+	if (file->flags & IO_FOREIGN)
+		return 0;
+
+	print_xfs_info(verbose);
+
+	return 0;
+}
+
 void
 stat_init(void)
 {
@@ -237,6 +389,15 @@ stat_init(void)
 	stat_cmd.args = _("[-v|-r]");
 	stat_cmd.oneline = _("statistics on the currently open file");
 
+	statx_cmd.name = "statx";
+	statx_cmd.cfunc = statx_f;
+	statx_cmd.argmin = 0;
+	statx_cmd.argmax = -1;
+	statx_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
+	statx_cmd.args = _("[-v|-r][-m basic | -m all | -m <mask>][-FD]");
+	statx_cmd.oneline = _("extended statistics on the currently open file");
+	statx_cmd.help = statx_help;
+
 	statfs_cmd.name = "statfs";
 	statfs_cmd.cfunc = statfs_f;
 	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
@@ -244,5 +405,6 @@ stat_init(void)
 		_("statistics on the filesystem of the currently open file");
 
 	add_command(&stat_cmd);
+	add_command(&statx_cmd);
 	add_command(&statfs_cmd);
 }
diff --git a/io/statx.h b/io/statx.h
new file mode 100644
index 0000000..2d919b9
--- /dev/null
+++ b/io/statx.h
@@ -0,0 +1,161 @@
+#ifndef XFS_IO_STATX_H
+#define XFS_IO_STATX_H
+
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#ifndef AT_STATX_SYNC_TYPE
+#define AT_STATX_SYNC_TYPE      0x6000  /* Type of synchronisation required from statx() */
+#define AT_STATX_SYNC_AS_STAT   0x0000  /* - Do whatever stat() does */
+#define AT_STATX_FORCE_SYNC     0x2000  /* - Force the attributes to be sync'd with the server */
+#define AT_STATX_DONT_SYNC      0x4000  /* - Don't sync attributes with the server */
+#endif
+
+#ifndef AT_NO_AUTOMOUNT
+#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
+#endif
+
+#ifndef __NR_statx
+# ifdef __i386__
+#  define __NR_statx 383
+# elif defined (__ILP32__)
+#  define __NR_statx (__X32_SYSCALL_BIT + 332)
+# elif defined (__x86_64__)
+#  define __NR_statx 332
+# endif
+#endif
+
+#ifndef STATX_TYPE
+
+/*
+ * Timestamp structure for the timestamps in struct statx.
+ *
+ * tv_sec holds the number of seconds before (negative) or after (positive)
+ * 00:00:00 1st January 1970 UTC.
+ *
+ * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
+ * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
+ *
+ * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
+ * either be both positive or both negative.
+ *
+ * __reserved is held in case we need a yet finer resolution.
+ */
+struct statx_timestamp {
+	__s64	tv_sec;
+	__s32	tv_nsec;
+	__s32	__reserved;
+};
+
+/*
+ * Structures for the extended file attribute retrieval system call
+ * (statx()).
+ *
+ * The caller passes a mask of what they're specifically interested in as a
+ * parameter to statx().  What statx() actually got will be indicated in
+ * st_mask upon return.
+ *
+ * For each bit in the mask argument:
+ *
+ * - if the datum is not supported:
+ *
+ *   - the bit will be cleared, and
+ *
+ *   - the datum will be set to an appropriate fabricated value if one is
+ *     available (eg. CIFS can take a default uid and gid), otherwise
+ *
+ *   - the field will be cleared;
+ *
+ * - otherwise, if explicitly requested:
+ *
+ *   - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
+ *     set or if the datum is considered out of date, and
+ *
+ *   - the field will be filled in and the bit will be set;
+ *
+ * - otherwise, if not requested, but available in approximate form without any
+ *   effort, it will be filled in anyway, and the bit will be set upon return
+ *   (it might not be up to date, however, and no attempt will be made to
+ *   synchronise the internal state first);
+ *
+ * - otherwise the field and the bit will be cleared before returning.
+ *
+ * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
+ * will have values installed for compatibility purposes so that stat() and
+ * co. can be emulated in userspace.
+ */
+struct statx {
+	/* 0x00 */
+	__u32	stx_mask;	/* What results were written [uncond] */
+	__u32	stx_blksize;	/* Preferred general I/O size [uncond] */
+	__u64	stx_attributes;	/* Flags conveying information about the file [uncond] */
+	/* 0x10 */
+	__u32	stx_nlink;	/* Number of hard links */
+	__u32	stx_uid;	/* User ID of owner */
+	__u32	stx_gid;	/* Group ID of owner */
+	__u16	stx_mode;	/* File mode */
+	__u16	__spare0[1];
+	/* 0x20 */
+	__u64	stx_ino;	/* Inode number */
+	__u64	stx_size;	/* File size */
+	__u64	stx_blocks;	/* Number of 512-byte blocks allocated */
+	__u64	__spare1[1];
+	/* 0x40 */
+	struct statx_timestamp	stx_atime;	/* Last access time */
+	struct statx_timestamp	stx_btime;	/* File creation time */
+	struct statx_timestamp	stx_ctime;	/* Last attribute change time */
+	struct statx_timestamp	stx_mtime;	/* Last data modification time */
+	/* 0x80 */
+	__u32	stx_rdev_major;	/* Device ID of special file [if bdev/cdev] */
+	__u32	stx_rdev_minor;
+	__u32	stx_dev_major;	/* ID of device containing file [uncond] */
+	__u32	stx_dev_minor;
+	/* 0x90 */
+	__u64	__spare2[14];	/* Spare space for future expansion */
+	/* 0x100 */
+};
+
+/*
+ * Flags to be stx_mask
+ *
+ * Query request/result mask for statx() and struct statx::stx_mask.
+ *
+ * These bits should be set in the mask argument of statx() to request
+ * particular items when calling statx().
+ */
+#define STATX_TYPE		0x00000001U	/* Want/got stx_mode & S_IFMT */
+#define STATX_MODE		0x00000002U	/* Want/got stx_mode & ~S_IFMT */
+#define STATX_NLINK		0x00000004U	/* Want/got stx_nlink */
+#define STATX_UID		0x00000008U	/* Want/got stx_uid */
+#define STATX_GID		0x00000010U	/* Want/got stx_gid */
+#define STATX_ATIME		0x00000020U	/* Want/got stx_atime */
+#define STATX_MTIME		0x00000040U	/* Want/got stx_mtime */
+#define STATX_CTIME		0x00000080U	/* Want/got stx_ctime */
+#define STATX_INO		0x00000100U	/* Want/got stx_ino */
+#define STATX_SIZE		0x00000200U	/* Want/got stx_size */
+#define STATX_BLOCKS		0x00000400U	/* Want/got stx_blocks */
+#define STATX_BASIC_STATS	0x000007ffU	/* The stuff in the normal stat struct */
+#define STATX_BTIME		0x00000800U	/* Want/got stx_btime */
+#define STATX_ALL		0x00000fffU	/* All currently supported flags */
+
+/*
+ * Attributes to be found in stx_attributes
+ *
+ * These give information about the features or the state of a file that might
+ * be of use to ordinary userspace programs such as GUIs or ls rather than
+ * specialised tools.
+ *
+ * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
+ * semantically.  Where possible, the numerical value is picked to correspond
+ * also.
+ */
+#define STATX_ATTR_COMPRESSED		0x00000004 /* [I] File is compressed by the fs */
+#define STATX_ATTR_IMMUTABLE		0x00000010 /* [I] File is marked immutable */
+#define STATX_ATTR_APPEND		0x00000020 /* [I] File is append-only */
+#define STATX_ATTR_NODUMP		0x00000040 /* [I] File is not to be dumped */
+#define STATX_ATTR_ENCRYPTED		0x00000800 /* [I] File requires key to decrypt in fs */
+
+#define STATX_ATTR_AUTOMOUNT		0x00001000 /* Dir: Automount trigger */
+
+#endif /* STATX_TYPE */
+#endif /* XFS_IO_STATX_H */
diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
index e384327..1e5c225 100644
--- a/man/man8/xfs_io.8
+++ b/man/man8/xfs_io.8
@@ -882,6 +882,36 @@ option is specified, the atime (last access), mtime
 .B \-r
 option dumps raw fields from the stat structure.
 .TP
+.BI "statx [ \-v|\-r ][ \-m " basic " | \-m " all " | -m " <mask> " ][ \-FD ]"
+Selected statistics from
+.BR stat (2)
+and the XFS_IOC_GETXATTR system call on the current file.
+.RS 1.0i
+.PD 0
+.TP 0.4i
+.B \-v
+Show timestamps
+.TP
+.B \-r
+Dump raw statx structure values
+.TP
+.B \-m basic
+Set the field mask for the statx call to STATX_BASIC_STATS
+.TP
+.B \-m all
+Set the the field mask for the statx call to STATX_ALL (default)
+.TP
+.B \-m <mask>
+Specify a numeric field mask for the statx call
+.TP
+.B \-F
+Force the attributes to be synced with the server
+.TP
+.B \-D
+Don't sync attributes with the server
+.PD
+.RE
+.TP
 .B statfs
 Selected statistics from
 .BR statfs (2)

Re: [PATCH 3/3 V4] xfs_io: hook up statx

[Darrick J. Wong]

On Mon, Apr 10, 2017 at 04:33:44PM -0500, Eric Sandeen wrote:
> Wire up the statx syscall to xfs_io.
> 
> xfs_io> help statx
> statx [-v|-r][-m basic | -m all | -m <mask>][-FD] -- extended statistics on the currently open file
> 
>  Display extended file status.
> 
>  Options:
>  -v -- More verbose output
>  -r -- Print raw statx structure fields
>  -m mask -- Specify the field mask for the statx call
>             (can also be 'basic' or 'all'; default STATX_ALL)
>  -D -- Don't sync attributes with the server
>  -F -- Force the attributes to be sync'd with the server
> 
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
> ---
> 
> V4: Fix up __NR_statx defines, handle it if not defined (ala dhowells testcase)
>     fix trailing whitespace in manpage :)
> 
> V3: remove -A, -L, and -O options
> allow "basic" and "all" masks
> change raw dump format to match stat raw format
> make -r and -v exclusive
> follow factoring of stat_f()
> 
> diff --git a/io/stat.c b/io/stat.c
> index 770f3c7..efd552f 100644
> --- a/io/stat.c
> +++ b/io/stat.c
> @@ -2,6 +2,9 @@
>   * Copyright (c) 2003-2005 Silicon Graphics, Inc.
>   * All Rights Reserved.
>   *
> + * Copyright (C) 2015, 2017 Red Hat, Inc.
> + * Portions of statx support written by David Howells (dhowells@redhat.com)
> + *
>   * This program is free software; you can redistribute it and/or
>   * modify it under the terms of the GNU General Public License as
>   * published by the Free Software Foundation.
> @@ -20,10 +23,14 @@
>  #include "input.h"
>  #include "init.h"
>  #include "io.h"
> +#include "statx.h"
>  #include "libxfs.h"
>  
> +#include <fcntl.h>
> +
>  static cmdinfo_t stat_cmd;
>  static cmdinfo_t statfs_cmd;
> +static cmdinfo_t statx_cmd;
>  
>  off64_t
>  filesize(void)
> @@ -226,6 +233,151 @@ statfs_f(
>  	return 0;
>  }
>  
> +static ssize_t
> +_statx(int dfd, const char *filename, unsigned flags,

unsigned int flags?

> +      unsigned int mask, struct statx *buffer)

Parameter indentation? i.e.

static ssize_t
_statx(
	int		dfd,
	const char	*filename,
	unsigned int	flags,
	unsigned int	mask,
	struct statx	*buffer)
{

> +{
> +#ifdef __NR_statx
> +	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
> +#else
> +	errno = ENOSYS;
> +	return -1;
> +#endif
> +}
> +
> +static void
> +statx_help(void)
> +{
> +        printf(_(
> +"\n"
> +" Display extended file status.\n"
> +"\n"
> +" Options:\n"
> +" -v -- More verbose output\n"
> +" -r -- Print raw statx structure fields\n"
> +" -m mask -- Specify the field mask for the statx call\n"
> +"            (can also be 'basic' or 'all'; default STATX_ALL)\n"
> +" -D -- Don't sync attributes with the server\n"
> +" -F -- Force the attributes to be sync'd with the server\n"
> +"\n"));
> +}
> +
> +/* statx helper */
> +static int
> +dump_raw_statx(struct statx *stx)
> +{
> +	printf("stat.mask = 0x%x\n", stx->stx_mask);
> +	printf("stat.blksize = %u\n", stx->stx_blksize);
> +	printf("stat.attributes = 0x%llx\n", stx->stx_attributes);
> +	printf("stat.nlink = %u\n", stx->stx_nlink);
> +	printf("stat.uid = %u\n", stx->stx_uid);
> +	printf("stat.gid = %u\n", stx->stx_gid);
> +	printf("stat.mode: 0%o\n", stx->stx_mode);
> +	printf("stat.ino = %llu\n", stx->stx_ino);
> +	printf("stat.size = %llu\n", stx->stx_size);
> +	printf("stat.blocks = %llu\n", stx->stx_blocks);
> +	printf("stat.atime.tv_sec = %lld\n", stx->stx_atime.tv_sec);
> +	printf("stat.atime.tv_nsec = %d\n", stx->stx_atime.tv_nsec);
> +	printf("stat.btime.tv_sec = %lld\n", stx->stx_btime.tv_sec);
> +	printf("stat.btime.tv_nsec = %d\n", stx->stx_btime.tv_nsec);
> +	printf("stat.ctime.tv_sec = %lld\n", stx->stx_ctime.tv_sec);
> +	printf("stat.ctime.tv_nsec = %d\n", stx->stx_ctime.tv_nsec);
> +	printf("stat.mtime.tv_sec = %lld\n", stx->stx_mtime.tv_sec);
> +	printf("stat.mtime.tv_nsec = %d\n", stx->stx_mtime.tv_nsec);
> +	printf("stat.rdev_major = %u\n", stx->stx_rdev_major);
> +	printf("stat.rdev_minor = %u\n", stx->stx_rdev_minor);
> +	printf("stat.dev_major = %u\n", stx->stx_dev_major);
> +	printf("stat.dev_minor = %u\n", stx->stx_dev_minor);
> +	return 0;
> +}
> +
> +/*
> + * options:
> + * 	- input flags - query type
> + * 	- output style for flags (and all else?) (chars vs. hex?)
> + * 	- output - mask out incidental flag or not?
> + */
> +int
> +statx_f(
> +	int		argc,
> +	char		**argv)
> +{
> +	int		c, verbose = 0, raw = 0;
> +	char		*p;
> +	struct statx	stx;
> +	int		atflag = 0;
> +	unsigned int	mask = STATX_ALL;
> +
> +	while ((c = getopt(argc, argv, "m:rvFD")) != EOF) {
> +		switch (c) {
> +		case 'm':
> +			if (strcmp(optarg, "basic") == 0)
> +				mask = STATX_BASIC_STATS;
> +			else if (strcmp(optarg, "all") == 0)
> +				mask = STATX_ALL;
> +			else {
> +				mask = strtoul(optarg, &p, 0);
> +				if (!p || p == optarg) {
> +					printf(
> +				_("non-numeric mask -- %s\n"), optarg);
> +					return 0;
> +				}
> +			}
> +			break;
> +		case 'r':
> +			raw = 1;
> +			break;
> +		case 'v':
> +			verbose = 1;
> +			break;
> +		case 'F':
> +			atflag &= ~AT_STATX_SYNC_TYPE;
> +			atflag |= AT_STATX_FORCE_SYNC;
> +			break;
> +		case 'D':
> +			atflag &= ~AT_STATX_SYNC_TYPE;
> +			atflag |= AT_STATX_DONT_SYNC;
> +			break;
> +		default:
> +			return command_usage(&statx_cmd);
> +		}
> +	}
> +
> +	if (raw && verbose)
> +		return command_usage(&statx_cmd);
> +
> +	memset(&stx, 0xbf, sizeof(stx));
> +	if (_statx(file->fd, NULL, atflag, mask, &stx) < 0) {
> +		perror("statx");
> +		return 0;
> +	}
> +
> +	if (raw)
> +		return dump_raw_statx(&stx);
> +
> +	print_file_info();
> +
> +	printf(_("stat.ino = %lld\n"), (long long)stx.stx_ino);
> +	printf(_("stat.type = %s\n"), filetype(stx.stx_mode));
> +	printf(_("stat.size = %lld\n"), (long long)stx.stx_size);
> +	printf(_("stat.blocks = %lld\n"), (long long)stx.stx_blocks);
> +	if (verbose) {
> +		printf(_("stat.atime = %s"), ctime((time_t *)&stx.stx_atime.tv_sec));
> +		printf(_("stat.mtime = %s"), ctime((time_t *)&stx.stx_mtime.tv_sec));
> +		printf(_("stat.ctime = %s"), ctime((time_t *)&stx.stx_ctime.tv_sec));
> +		if (stx.stx_mask & STATX_BTIME)
> +			printf(_("stat.btime = %s"),
> +				ctime((time_t *)&stx.stx_btime.tv_sec));
> +	}
> +
> +	if (file->flags & IO_FOREIGN)
> +		return 0;
> +
> +	print_xfs_info(verbose);
> +
> +	return 0;
> +}
> +
>  void
>  stat_init(void)
>  {
> @@ -237,6 +389,15 @@ stat_init(void)
>  	stat_cmd.args = _("[-v|-r]");
>  	stat_cmd.oneline = _("statistics on the currently open file");
>  
> +	statx_cmd.name = "statx";
> +	statx_cmd.cfunc = statx_f;
> +	statx_cmd.argmin = 0;
> +	statx_cmd.argmax = -1;
> +	statx_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> +	statx_cmd.args = _("[-v|-r][-m basic | -m all | -m <mask>][-FD]");
> +	statx_cmd.oneline = _("extended statistics on the currently open file");
> +	statx_cmd.help = statx_help;
> +
>  	statfs_cmd.name = "statfs";
>  	statfs_cmd.cfunc = statfs_f;
>  	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> @@ -244,5 +405,6 @@ stat_init(void)
>  		_("statistics on the filesystem of the currently open file");
>  
>  	add_command(&stat_cmd);
> +	add_command(&statx_cmd);
>  	add_command(&statfs_cmd);
>  }
> diff --git a/io/statx.h b/io/statx.h
> new file mode 100644
> index 0000000..2d919b9
> --- /dev/null
> +++ b/io/statx.h
> @@ -0,0 +1,161 @@
> +#ifndef XFS_IO_STATX_H
> +#define XFS_IO_STATX_H
> +
> +#include <unistd.h>
> +#include <sys/syscall.h>
> +
> +#ifndef AT_STATX_SYNC_TYPE
> +#define AT_STATX_SYNC_TYPE      0x6000  /* Type of synchronisation required from statx() */
> +#define AT_STATX_SYNC_AS_STAT   0x0000  /* - Do whatever stat() does */
> +#define AT_STATX_FORCE_SYNC     0x2000  /* - Force the attributes to be sync'd with the server */
> +#define AT_STATX_DONT_SYNC      0x4000  /* - Don't sync attributes with the server */
> +#endif
> +
> +#ifndef AT_NO_AUTOMOUNT
> +#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
> +#endif
> +
> +#ifndef __NR_statx
> +# ifdef __i386__
> +#  define __NR_statx 383
> +# elif defined (__ILP32__)
> +#  define __NR_statx (__X32_SYSCALL_BIT + 332)
> +# elif defined (__x86_64__)
> +#  define __NR_statx 332
> +# endif
> +#endif

No love for m68k? :)

> +
> +#ifndef STATX_TYPE
> +
> +/*
> + * Timestamp structure for the timestamps in struct statx.
> + *
> + * tv_sec holds the number of seconds before (negative) or after (positive)
> + * 00:00:00 1st January 1970 UTC.
> + *
> + * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
> + * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
> + *
> + * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
> + * either be both positive or both negative.
> + *
> + * __reserved is held in case we need a yet finer resolution.
> + */
> +struct statx_timestamp {
> +	__s64	tv_sec;
> +	__s32	tv_nsec;
> +	__s32	__reserved;
> +};
> +
> +/*
> + * Structures for the extended file attribute retrieval system call
> + * (statx()).
> + *
> + * The caller passes a mask of what they're specifically interested in as a
> + * parameter to statx().  What statx() actually got will be indicated in
> + * st_mask upon return.
> + *
> + * For each bit in the mask argument:
> + *
> + * - if the datum is not supported:
> + *
> + *   - the bit will be cleared, and
> + *
> + *   - the datum will be set to an appropriate fabricated value if one is
> + *     available (eg. CIFS can take a default uid and gid), otherwise
> + *
> + *   - the field will be cleared;
> + *
> + * - otherwise, if explicitly requested:
> + *
> + *   - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
> + *     set or if the datum is considered out of date, and
> + *
> + *   - the field will be filled in and the bit will be set;
> + *
> + * - otherwise, if not requested, but available in approximate form without any
> + *   effort, it will be filled in anyway, and the bit will be set upon return
> + *   (it might not be up to date, however, and no attempt will be made to
> + *   synchronise the internal state first);
> + *
> + * - otherwise the field and the bit will be cleared before returning.
> + *
> + * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
> + * will have values installed for compatibility purposes so that stat() and
> + * co. can be emulated in userspace.
> + */
> +struct statx {
> +	/* 0x00 */
> +	__u32	stx_mask;	/* What results were written [uncond] */
> +	__u32	stx_blksize;	/* Preferred general I/O size [uncond] */
> +	__u64	stx_attributes;	/* Flags conveying information about the file [uncond] */
> +	/* 0x10 */
> +	__u32	stx_nlink;	/* Number of hard links */
> +	__u32	stx_uid;	/* User ID of owner */
> +	__u32	stx_gid;	/* Group ID of owner */
> +	__u16	stx_mode;	/* File mode */
> +	__u16	__spare0[1];
> +	/* 0x20 */
> +	__u64	stx_ino;	/* Inode number */
> +	__u64	stx_size;	/* File size */
> +	__u64	stx_blocks;	/* Number of 512-byte blocks allocated */
> +	__u64	__spare1[1];
> +	/* 0x40 */
> +	struct statx_timestamp	stx_atime;	/* Last access time */
> +	struct statx_timestamp	stx_btime;	/* File creation time */
> +	struct statx_timestamp	stx_ctime;	/* Last attribute change time */
> +	struct statx_timestamp	stx_mtime;	/* Last data modification time */
> +	/* 0x80 */
> +	__u32	stx_rdev_major;	/* Device ID of special file [if bdev/cdev] */
> +	__u32	stx_rdev_minor;
> +	__u32	stx_dev_major;	/* ID of device containing file [uncond] */
> +	__u32	stx_dev_minor;
> +	/* 0x90 */
> +	__u64	__spare2[14];	/* Spare space for future expansion */
> +	/* 0x100 */
> +};
> +
> +/*
> + * Flags to be stx_mask
> + *
> + * Query request/result mask for statx() and struct statx::stx_mask.
> + *
> + * These bits should be set in the mask argument of statx() to request
> + * particular items when calling statx().
> + */
> +#define STATX_TYPE		0x00000001U	/* Want/got stx_mode & S_IFMT */
> +#define STATX_MODE		0x00000002U	/* Want/got stx_mode & ~S_IFMT */
> +#define STATX_NLINK		0x00000004U	/* Want/got stx_nlink */
> +#define STATX_UID		0x00000008U	/* Want/got stx_uid */
> +#define STATX_GID		0x00000010U	/* Want/got stx_gid */
> +#define STATX_ATIME		0x00000020U	/* Want/got stx_atime */
> +#define STATX_MTIME		0x00000040U	/* Want/got stx_mtime */
> +#define STATX_CTIME		0x00000080U	/* Want/got stx_ctime */
> +#define STATX_INO		0x00000100U	/* Want/got stx_ino */
> +#define STATX_SIZE		0x00000200U	/* Want/got stx_size */
> +#define STATX_BLOCKS		0x00000400U	/* Want/got stx_blocks */
> +#define STATX_BASIC_STATS	0x000007ffU	/* The stuff in the normal stat struct */
> +#define STATX_BTIME		0x00000800U	/* Want/got stx_btime */
> +#define STATX_ALL		0x00000fffU	/* All currently supported flags */

Missing STATX__RESERVED here.

(Yeah yeah, I'm being pedantic...)

> +
> +/*
> + * Attributes to be found in stx_attributes
> + *
> + * These give information about the features or the state of a file that might
> + * be of use to ordinary userspace programs such as GUIs or ls rather than
> + * specialised tools.
> + *
> + * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
> + * semantically.  Where possible, the numerical value is picked to correspond
> + * also.
> + */
> +#define STATX_ATTR_COMPRESSED		0x00000004 /* [I] File is compressed by the fs */
> +#define STATX_ATTR_IMMUTABLE		0x00000010 /* [I] File is marked immutable */
> +#define STATX_ATTR_APPEND		0x00000020 /* [I] File is append-only */
> +#define STATX_ATTR_NODUMP		0x00000040 /* [I] File is not to be dumped */
> +#define STATX_ATTR_ENCRYPTED		0x00000800 /* [I] File requires key to decrypt in fs */
> +
> +#define STATX_ATTR_AUTOMOUNT		0x00001000 /* Dir: Automount trigger */
> +
> +#endif /* STATX_TYPE */
> +#endif /* XFS_IO_STATX_H */
> diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
> index e384327..1e5c225 100644
> --- a/man/man8/xfs_io.8
> +++ b/man/man8/xfs_io.8
> @@ -882,6 +882,36 @@ option is specified, the atime (last access), mtime
>  .B \-r
>  option dumps raw fields from the stat structure.
>  .TP
> +.BI "statx [ \-v|\-r ][ \-m " basic " | \-m " all " | -m " <mask> " ][ \-FD ]"
> +Selected statistics from
> +.BR stat (2)
> +and the XFS_IOC_GETXATTR system call on the current file.
> +.RS 1.0i
> +.PD 0
> +.TP 0.4i
> +.B \-v
> +Show timestamps
> +.TP
> +.B \-r
> +Dump raw statx structure values
> +.TP
> +.B \-m basic
> +Set the field mask for the statx call to STATX_BASIC_STATS
> +.TP
> +.B \-m all
> +Set the the field mask for the statx call to STATX_ALL (default)
> +.TP
> +.B \-m <mask>
> +Specify a numeric field mask for the statx call
> +.TP
> +.B \-F
> +Force the attributes to be synced with the server
> +.TP
> +.B \-D
> +Don't sync attributes with the server

All of these need trailing end-of-sentence periods since they are full
sentences.

--D

> +.PD
> +.RE
> +.TP
>  .B statfs
>  Selected statistics from
>  .BR statfs (2)
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

[PATCH 3/3 V5] xfs_io: hook up statx

[Eric Sandeen]

Wire up the statx syscall to xfs_io.

xfs_io> help statx
statx [-v|-r][-m basic | -m all | -m <mask>][-FD] -- extended statistics on the currently open file

 Display extended file status.

 Options:
 -v -- More verbose output
 -r -- Print raw statx structure fields
 -m mask -- Specify the field mask for the statx call
            (can also be 'basic' or 'all'; default STATX_ALL)
 -D -- Don't sync attributes with the server
 -F -- Force the attributes to be sync'd with the server

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---

V5: address djwong's pedantry, except for mst3k ;)

V4: Fix up __NR_statx defines, handle it if not defined (ala dhowells testcase)
    fix trailing whitespace in manpage 

V3: remove -A, -L, and -O options
allow "basic" and "all" masks
change raw dump format to match stat raw format
make -r and -v exclusive
follow factoring of stat_f()


diff --git a/io/stat.c b/io/stat.c
index 770f3c7..c5b3075 100644
--- a/io/stat.c
+++ b/io/stat.c
@@ -2,6 +2,9 @@
  * Copyright (c) 2003-2005 Silicon Graphics, Inc.
  * All Rights Reserved.
  *
+ * Copyright (C) 2015, 2017 Red Hat, Inc.
+ * Portions of statx support written by David Howells (dhowells@redhat.com)
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation.
@@ -20,10 +23,14 @@
 #include "input.h"
 #include "init.h"
 #include "io.h"
+#include "statx.h"
 #include "libxfs.h"
 
+#include <fcntl.h>
+
 static cmdinfo_t stat_cmd;
 static cmdinfo_t statfs_cmd;
+static cmdinfo_t statx_cmd;
 
 off64_t
 filesize(void)
@@ -226,6 +233,155 @@ statfs_f(
 	return 0;
 }
 
+static ssize_t
+_statx(
+	int		dfd,
+	const char	*filename,
+	unsigned int	flags,
+	unsigned int	mask,
+	struct statx	*buffer)
+{
+#ifdef __NR_statx
+	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
+#else
+	errno = ENOSYS;
+	return -1;
+#endif
+}
+
+static void
+statx_help(void)
+{
+        printf(_(
+"\n"
+" Display extended file status.\n"
+"\n"
+" Options:\n"
+" -v -- More verbose output\n"
+" -r -- Print raw statx structure fields\n"
+" -m mask -- Specify the field mask for the statx call\n"
+"            (can also be 'basic' or 'all'; default STATX_ALL)\n"
+" -D -- Don't sync attributes with the server\n"
+" -F -- Force the attributes to be sync'd with the server\n"
+"\n"));
+}
+
+/* statx helper */
+static int
+dump_raw_statx(struct statx *stx)
+{
+	printf("stat.mask = 0x%x\n", stx->stx_mask);
+	printf("stat.blksize = %u\n", stx->stx_blksize);
+	printf("stat.attributes = 0x%llx\n", stx->stx_attributes);
+	printf("stat.nlink = %u\n", stx->stx_nlink);
+	printf("stat.uid = %u\n", stx->stx_uid);
+	printf("stat.gid = %u\n", stx->stx_gid);
+	printf("stat.mode: 0%o\n", stx->stx_mode);
+	printf("stat.ino = %llu\n", stx->stx_ino);
+	printf("stat.size = %llu\n", stx->stx_size);
+	printf("stat.blocks = %llu\n", stx->stx_blocks);
+	printf("stat.atime.tv_sec = %lld\n", stx->stx_atime.tv_sec);
+	printf("stat.atime.tv_nsec = %d\n", stx->stx_atime.tv_nsec);
+	printf("stat.btime.tv_sec = %lld\n", stx->stx_btime.tv_sec);
+	printf("stat.btime.tv_nsec = %d\n", stx->stx_btime.tv_nsec);
+	printf("stat.ctime.tv_sec = %lld\n", stx->stx_ctime.tv_sec);
+	printf("stat.ctime.tv_nsec = %d\n", stx->stx_ctime.tv_nsec);
+	printf("stat.mtime.tv_sec = %lld\n", stx->stx_mtime.tv_sec);
+	printf("stat.mtime.tv_nsec = %d\n", stx->stx_mtime.tv_nsec);
+	printf("stat.rdev_major = %u\n", stx->stx_rdev_major);
+	printf("stat.rdev_minor = %u\n", stx->stx_rdev_minor);
+	printf("stat.dev_major = %u\n", stx->stx_dev_major);
+	printf("stat.dev_minor = %u\n", stx->stx_dev_minor);
+	return 0;
+}
+
+/*
+ * options:
+ * 	- input flags - query type
+ * 	- output style for flags (and all else?) (chars vs. hex?)
+ * 	- output - mask out incidental flag or not?
+ */
+int
+statx_f(
+	int		argc,
+	char		**argv)
+{
+	int		c, verbose = 0, raw = 0;
+	char		*p;
+	struct statx	stx;
+	int		atflag = 0;
+	unsigned int	mask = STATX_ALL;
+
+	while ((c = getopt(argc, argv, "m:rvFD")) != EOF) {
+		switch (c) {
+		case 'm':
+			if (strcmp(optarg, "basic") == 0)
+				mask = STATX_BASIC_STATS;
+			else if (strcmp(optarg, "all") == 0)
+				mask = STATX_ALL;
+			else {
+				mask = strtoul(optarg, &p, 0);
+				if (!p || p == optarg) {
+					printf(
+				_("non-numeric mask -- %s\n"), optarg);
+					return 0;
+				}
+			}
+			break;
+		case 'r':
+			raw = 1;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 'F':
+			atflag &= ~AT_STATX_SYNC_TYPE;
+			atflag |= AT_STATX_FORCE_SYNC;
+			break;
+		case 'D':
+			atflag &= ~AT_STATX_SYNC_TYPE;
+			atflag |= AT_STATX_DONT_SYNC;
+			break;
+		default:
+			return command_usage(&statx_cmd);
+		}
+	}
+
+	if (raw && verbose)
+		return command_usage(&statx_cmd);
+
+	memset(&stx, 0xbf, sizeof(stx));
+	if (_statx(file->fd, NULL, atflag, mask, &stx) < 0) {
+		perror("statx");
+		return 0;
+	}
+
+	if (raw)
+		return dump_raw_statx(&stx);
+
+	print_file_info();
+
+	printf(_("stat.ino = %lld\n"), (long long)stx.stx_ino);
+	printf(_("stat.type = %s\n"), filetype(stx.stx_mode));
+	printf(_("stat.size = %lld\n"), (long long)stx.stx_size);
+	printf(_("stat.blocks = %lld\n"), (long long)stx.stx_blocks);
+	if (verbose) {
+		printf(_("stat.atime = %s"), ctime((time_t *)&stx.stx_atime.tv_sec));
+		printf(_("stat.mtime = %s"), ctime((time_t *)&stx.stx_mtime.tv_sec));
+		printf(_("stat.ctime = %s"), ctime((time_t *)&stx.stx_ctime.tv_sec));
+		if (stx.stx_mask & STATX_BTIME)
+			printf(_("stat.btime = %s"),
+				ctime((time_t *)&stx.stx_btime.tv_sec));
+	}
+
+	if (file->flags & IO_FOREIGN)
+		return 0;
+
+	print_xfs_info(verbose);
+
+	return 0;
+}
+
 void
 stat_init(void)
 {
@@ -237,6 +393,15 @@ stat_init(void)
 	stat_cmd.args = _("[-v|-r]");
 	stat_cmd.oneline = _("statistics on the currently open file");
 
+	statx_cmd.name = "statx";
+	statx_cmd.cfunc = statx_f;
+	statx_cmd.argmin = 0;
+	statx_cmd.argmax = -1;
+	statx_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
+	statx_cmd.args = _("[-v|-r][-m basic | -m all | -m <mask>][-FD]");
+	statx_cmd.oneline = _("extended statistics on the currently open file");
+	statx_cmd.help = statx_help;
+
 	statfs_cmd.name = "statfs";
 	statfs_cmd.cfunc = statfs_f;
 	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
@@ -244,5 +409,6 @@ stat_init(void)
 		_("statistics on the filesystem of the currently open file");
 
 	add_command(&stat_cmd);
+	add_command(&statx_cmd);
 	add_command(&statfs_cmd);
 }
diff --git a/io/statx.h b/io/statx.h
new file mode 100644
index 0000000..ff08e27
--- /dev/null
+++ b/io/statx.h
@@ -0,0 +1,162 @@
+#ifndef XFS_IO_STATX_H
+#define XFS_IO_STATX_H
+
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#ifndef AT_STATX_SYNC_TYPE
+#define AT_STATX_SYNC_TYPE      0x6000  /* Type of synchronisation required from statx() */
+#define AT_STATX_SYNC_AS_STAT   0x0000  /* - Do whatever stat() does */
+#define AT_STATX_FORCE_SYNC     0x2000  /* - Force the attributes to be sync'd with the server */
+#define AT_STATX_DONT_SYNC      0x4000  /* - Don't sync attributes with the server */
+#endif
+
+#ifndef AT_NO_AUTOMOUNT
+#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
+#endif
+
+#ifndef __NR_statx
+# ifdef __i386__
+#  define __NR_statx 383
+# elif defined (__ILP32__)
+#  define __NR_statx (__X32_SYSCALL_BIT + 332)
+# elif defined (__x86_64__)
+#  define __NR_statx 332
+# endif
+#endif
+
+#ifndef STATX_TYPE
+
+/*
+ * Timestamp structure for the timestamps in struct statx.
+ *
+ * tv_sec holds the number of seconds before (negative) or after (positive)
+ * 00:00:00 1st January 1970 UTC.
+ *
+ * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
+ * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
+ *
+ * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
+ * either be both positive or both negative.
+ *
+ * __reserved is held in case we need a yet finer resolution.
+ */
+struct statx_timestamp {
+	__s64	tv_sec;
+	__s32	tv_nsec;
+	__s32	__reserved;
+};
+
+/*
+ * Structures for the extended file attribute retrieval system call
+ * (statx()).
+ *
+ * The caller passes a mask of what they're specifically interested in as a
+ * parameter to statx().  What statx() actually got will be indicated in
+ * st_mask upon return.
+ *
+ * For each bit in the mask argument:
+ *
+ * - if the datum is not supported:
+ *
+ *   - the bit will be cleared, and
+ *
+ *   - the datum will be set to an appropriate fabricated value if one is
+ *     available (eg. CIFS can take a default uid and gid), otherwise
+ *
+ *   - the field will be cleared;
+ *
+ * - otherwise, if explicitly requested:
+ *
+ *   - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
+ *     set or if the datum is considered out of date, and
+ *
+ *   - the field will be filled in and the bit will be set;
+ *
+ * - otherwise, if not requested, but available in approximate form without any
+ *   effort, it will be filled in anyway, and the bit will be set upon return
+ *   (it might not be up to date, however, and no attempt will be made to
+ *   synchronise the internal state first);
+ *
+ * - otherwise the field and the bit will be cleared before returning.
+ *
+ * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
+ * will have values installed for compatibility purposes so that stat() and
+ * co. can be emulated in userspace.
+ */
+struct statx {
+	/* 0x00 */
+	__u32	stx_mask;	/* What results were written [uncond] */
+	__u32	stx_blksize;	/* Preferred general I/O size [uncond] */
+	__u64	stx_attributes;	/* Flags conveying information about the file [uncond] */
+	/* 0x10 */
+	__u32	stx_nlink;	/* Number of hard links */
+	__u32	stx_uid;	/* User ID of owner */
+	__u32	stx_gid;	/* Group ID of owner */
+	__u16	stx_mode;	/* File mode */
+	__u16	__spare0[1];
+	/* 0x20 */
+	__u64	stx_ino;	/* Inode number */
+	__u64	stx_size;	/* File size */
+	__u64	stx_blocks;	/* Number of 512-byte blocks allocated */
+	__u64	__spare1[1];
+	/* 0x40 */
+	struct statx_timestamp	stx_atime;	/* Last access time */
+	struct statx_timestamp	stx_btime;	/* File creation time */
+	struct statx_timestamp	stx_ctime;	/* Last attribute change time */
+	struct statx_timestamp	stx_mtime;	/* Last data modification time */
+	/* 0x80 */
+	__u32	stx_rdev_major;	/* Device ID of special file [if bdev/cdev] */
+	__u32	stx_rdev_minor;
+	__u32	stx_dev_major;	/* ID of device containing file [uncond] */
+	__u32	stx_dev_minor;
+	/* 0x90 */
+	__u64	__spare2[14];	/* Spare space for future expansion */
+	/* 0x100 */
+};
+
+/*
+ * Flags to be stx_mask
+ *
+ * Query request/result mask for statx() and struct statx::stx_mask.
+ *
+ * These bits should be set in the mask argument of statx() to request
+ * particular items when calling statx().
+ */
+#define STATX_TYPE		0x00000001U	/* Want/got stx_mode & S_IFMT */
+#define STATX_MODE		0x00000002U	/* Want/got stx_mode & ~S_IFMT */
+#define STATX_NLINK		0x00000004U	/* Want/got stx_nlink */
+#define STATX_UID		0x00000008U	/* Want/got stx_uid */
+#define STATX_GID		0x00000010U	/* Want/got stx_gid */
+#define STATX_ATIME		0x00000020U	/* Want/got stx_atime */
+#define STATX_MTIME		0x00000040U	/* Want/got stx_mtime */
+#define STATX_CTIME		0x00000080U	/* Want/got stx_ctime */
+#define STATX_INO		0x00000100U	/* Want/got stx_ino */
+#define STATX_SIZE		0x00000200U	/* Want/got stx_size */
+#define STATX_BLOCKS		0x00000400U	/* Want/got stx_blocks */
+#define STATX_BASIC_STATS	0x000007ffU	/* The stuff in the normal stat struct */
+#define STATX_BTIME		0x00000800U	/* Want/got stx_btime */
+#define STATX_ALL		0x00000fffU	/* All currently supported flags */
+#define STATX__RESERVED		0x80000000U	/* Reserved for future struct statx expansion */
+
+/*
+ * Attributes to be found in stx_attributes
+ *
+ * These give information about the features or the state of a file that might
+ * be of use to ordinary userspace programs such as GUIs or ls rather than
+ * specialised tools.
+ *
+ * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
+ * semantically.  Where possible, the numerical value is picked to correspond
+ * also.
+ */
+#define STATX_ATTR_COMPRESSED		0x00000004 /* [I] File is compressed by the fs */
+#define STATX_ATTR_IMMUTABLE		0x00000010 /* [I] File is marked immutable */
+#define STATX_ATTR_APPEND		0x00000020 /* [I] File is append-only */
+#define STATX_ATTR_NODUMP		0x00000040 /* [I] File is not to be dumped */
+#define STATX_ATTR_ENCRYPTED		0x00000800 /* [I] File requires key to decrypt in fs */
+
+#define STATX_ATTR_AUTOMOUNT		0x00001000 /* Dir: Automount trigger */
+
+#endif /* STATX_TYPE */
+#endif /* XFS_IO_STATX_H */
diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
index e384327..b09a178 100644
--- a/man/man8/xfs_io.8
+++ b/man/man8/xfs_io.8
@@ -882,6 +882,36 @@ option is specified, the atime (last access), mtime
 .B \-r
 option dumps raw fields from the stat structure.
 .TP
+.BI "statx [ \-v|\-r ][ \-m " basic " | \-m " all " | -m " <mask> " ][ \-FD ]"
+Selected statistics from
+.BR stat (2)
+and the XFS_IOC_GETXATTR system call on the current file.
+.RS 1.0i
+.PD 0
+.TP 0.4i
+.B \-v
+Show timestamps.
+.TP
+.B \-r
+Dump raw statx structure values.
+.TP
+.B \-m basic
+Set the field mask for the statx call to STATX_BASIC_STATS.
+.TP
+.B \-m all
+Set the the field mask for the statx call to STATX_ALL (default).
+.TP
+.B \-m <mask>
+Specify a numeric field mask for the statx call.
+.TP
+.B \-F
+Force the attributes to be synced with the server.
+.TP
+.B \-D
+Don't sync attributes with the server.
+.PD
+.RE
+.TP
 .B statfs
 Selected statistics from
 .BR statfs (2)

Re: [PATCH 3/3 V5] xfs_io: hook up statx

[Darrick J. Wong]

On Mon, Apr 10, 2017 at 05:07:58PM -0500, Eric Sandeen wrote:
> Wire up the statx syscall to xfs_io.
> 
> xfs_io> help statx
> statx [-v|-r][-m basic | -m all | -m <mask>][-FD] -- extended statistics on the currently open file
> 
>  Display extended file status.
> 
>  Options:
>  -v -- More verbose output
>  -r -- Print raw statx structure fields
>  -m mask -- Specify the field mask for the statx call
>             (can also be 'basic' or 'all'; default STATX_ALL)
>  -D -- Don't sync attributes with the server
>  -F -- Force the attributes to be sync'd with the server
> 
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
> ---
> 
> V5: address djwong's pedantry, except for mst3k ;)

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> 
> V4: Fix up __NR_statx defines, handle it if not defined (ala dhowells testcase)
>     fix trailing whitespace in manpage 
> 
> V3: remove -A, -L, and -O options
> allow "basic" and "all" masks
> change raw dump format to match stat raw format
> make -r and -v exclusive
> follow factoring of stat_f()
> 
> 
> diff --git a/io/stat.c b/io/stat.c
> index 770f3c7..c5b3075 100644
> --- a/io/stat.c
> +++ b/io/stat.c
> @@ -2,6 +2,9 @@
>   * Copyright (c) 2003-2005 Silicon Graphics, Inc.
>   * All Rights Reserved.
>   *
> + * Copyright (C) 2015, 2017 Red Hat, Inc.
> + * Portions of statx support written by David Howells (dhowells@redhat.com)
> + *
>   * This program is free software; you can redistribute it and/or
>   * modify it under the terms of the GNU General Public License as
>   * published by the Free Software Foundation.
> @@ -20,10 +23,14 @@
>  #include "input.h"
>  #include "init.h"
>  #include "io.h"
> +#include "statx.h"
>  #include "libxfs.h"
>  
> +#include <fcntl.h>
> +
>  static cmdinfo_t stat_cmd;
>  static cmdinfo_t statfs_cmd;
> +static cmdinfo_t statx_cmd;
>  
>  off64_t
>  filesize(void)
> @@ -226,6 +233,155 @@ statfs_f(
>  	return 0;
>  }
>  
> +static ssize_t
> +_statx(
> +	int		dfd,
> +	const char	*filename,
> +	unsigned int	flags,
> +	unsigned int	mask,
> +	struct statx	*buffer)
> +{
> +#ifdef __NR_statx
> +	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
> +#else
> +	errno = ENOSYS;
> +	return -1;
> +#endif
> +}
> +
> +static void
> +statx_help(void)
> +{
> +        printf(_(
> +"\n"
> +" Display extended file status.\n"
> +"\n"
> +" Options:\n"
> +" -v -- More verbose output\n"
> +" -r -- Print raw statx structure fields\n"
> +" -m mask -- Specify the field mask for the statx call\n"
> +"            (can also be 'basic' or 'all'; default STATX_ALL)\n"
> +" -D -- Don't sync attributes with the server\n"
> +" -F -- Force the attributes to be sync'd with the server\n"
> +"\n"));
> +}
> +
> +/* statx helper */
> +static int
> +dump_raw_statx(struct statx *stx)
> +{
> +	printf("stat.mask = 0x%x\n", stx->stx_mask);
> +	printf("stat.blksize = %u\n", stx->stx_blksize);
> +	printf("stat.attributes = 0x%llx\n", stx->stx_attributes);
> +	printf("stat.nlink = %u\n", stx->stx_nlink);
> +	printf("stat.uid = %u\n", stx->stx_uid);
> +	printf("stat.gid = %u\n", stx->stx_gid);
> +	printf("stat.mode: 0%o\n", stx->stx_mode);
> +	printf("stat.ino = %llu\n", stx->stx_ino);
> +	printf("stat.size = %llu\n", stx->stx_size);
> +	printf("stat.blocks = %llu\n", stx->stx_blocks);
> +	printf("stat.atime.tv_sec = %lld\n", stx->stx_atime.tv_sec);
> +	printf("stat.atime.tv_nsec = %d\n", stx->stx_atime.tv_nsec);
> +	printf("stat.btime.tv_sec = %lld\n", stx->stx_btime.tv_sec);
> +	printf("stat.btime.tv_nsec = %d\n", stx->stx_btime.tv_nsec);
> +	printf("stat.ctime.tv_sec = %lld\n", stx->stx_ctime.tv_sec);
> +	printf("stat.ctime.tv_nsec = %d\n", stx->stx_ctime.tv_nsec);
> +	printf("stat.mtime.tv_sec = %lld\n", stx->stx_mtime.tv_sec);
> +	printf("stat.mtime.tv_nsec = %d\n", stx->stx_mtime.tv_nsec);
> +	printf("stat.rdev_major = %u\n", stx->stx_rdev_major);
> +	printf("stat.rdev_minor = %u\n", stx->stx_rdev_minor);
> +	printf("stat.dev_major = %u\n", stx->stx_dev_major);
> +	printf("stat.dev_minor = %u\n", stx->stx_dev_minor);
> +	return 0;
> +}
> +
> +/*
> + * options:
> + * 	- input flags - query type
> + * 	- output style for flags (and all else?) (chars vs. hex?)
> + * 	- output - mask out incidental flag or not?
> + */
> +int
> +statx_f(
> +	int		argc,
> +	char		**argv)
> +{
> +	int		c, verbose = 0, raw = 0;
> +	char		*p;
> +	struct statx	stx;
> +	int		atflag = 0;
> +	unsigned int	mask = STATX_ALL;
> +
> +	while ((c = getopt(argc, argv, "m:rvFD")) != EOF) {
> +		switch (c) {
> +		case 'm':
> +			if (strcmp(optarg, "basic") == 0)
> +				mask = STATX_BASIC_STATS;
> +			else if (strcmp(optarg, "all") == 0)
> +				mask = STATX_ALL;
> +			else {
> +				mask = strtoul(optarg, &p, 0);
> +				if (!p || p == optarg) {
> +					printf(
> +				_("non-numeric mask -- %s\n"), optarg);
> +					return 0;
> +				}
> +			}
> +			break;
> +		case 'r':
> +			raw = 1;
> +			break;
> +		case 'v':
> +			verbose = 1;
> +			break;
> +		case 'F':
> +			atflag &= ~AT_STATX_SYNC_TYPE;
> +			atflag |= AT_STATX_FORCE_SYNC;
> +			break;
> +		case 'D':
> +			atflag &= ~AT_STATX_SYNC_TYPE;
> +			atflag |= AT_STATX_DONT_SYNC;
> +			break;
> +		default:
> +			return command_usage(&statx_cmd);
> +		}
> +	}
> +
> +	if (raw && verbose)
> +		return command_usage(&statx_cmd);
> +
> +	memset(&stx, 0xbf, sizeof(stx));
> +	if (_statx(file->fd, NULL, atflag, mask, &stx) < 0) {
> +		perror("statx");
> +		return 0;
> +	}
> +
> +	if (raw)
> +		return dump_raw_statx(&stx);
> +
> +	print_file_info();
> +
> +	printf(_("stat.ino = %lld\n"), (long long)stx.stx_ino);
> +	printf(_("stat.type = %s\n"), filetype(stx.stx_mode));
> +	printf(_("stat.size = %lld\n"), (long long)stx.stx_size);
> +	printf(_("stat.blocks = %lld\n"), (long long)stx.stx_blocks);
> +	if (verbose) {
> +		printf(_("stat.atime = %s"), ctime((time_t *)&stx.stx_atime.tv_sec));
> +		printf(_("stat.mtime = %s"), ctime((time_t *)&stx.stx_mtime.tv_sec));
> +		printf(_("stat.ctime = %s"), ctime((time_t *)&stx.stx_ctime.tv_sec));
> +		if (stx.stx_mask & STATX_BTIME)
> +			printf(_("stat.btime = %s"),
> +				ctime((time_t *)&stx.stx_btime.tv_sec));
> +	}
> +
> +	if (file->flags & IO_FOREIGN)
> +		return 0;
> +
> +	print_xfs_info(verbose);
> +
> +	return 0;
> +}
> +
>  void
>  stat_init(void)
>  {
> @@ -237,6 +393,15 @@ stat_init(void)
>  	stat_cmd.args = _("[-v|-r]");
>  	stat_cmd.oneline = _("statistics on the currently open file");
>  
> +	statx_cmd.name = "statx";
> +	statx_cmd.cfunc = statx_f;
> +	statx_cmd.argmin = 0;
> +	statx_cmd.argmax = -1;
> +	statx_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> +	statx_cmd.args = _("[-v|-r][-m basic | -m all | -m <mask>][-FD]");
> +	statx_cmd.oneline = _("extended statistics on the currently open file");
> +	statx_cmd.help = statx_help;
> +
>  	statfs_cmd.name = "statfs";
>  	statfs_cmd.cfunc = statfs_f;
>  	statfs_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK;
> @@ -244,5 +409,6 @@ stat_init(void)
>  		_("statistics on the filesystem of the currently open file");
>  
>  	add_command(&stat_cmd);
> +	add_command(&statx_cmd);
>  	add_command(&statfs_cmd);
>  }
> diff --git a/io/statx.h b/io/statx.h
> new file mode 100644
> index 0000000..ff08e27
> --- /dev/null
> +++ b/io/statx.h
> @@ -0,0 +1,162 @@
> +#ifndef XFS_IO_STATX_H
> +#define XFS_IO_STATX_H
> +
> +#include <unistd.h>
> +#include <sys/syscall.h>
> +
> +#ifndef AT_STATX_SYNC_TYPE
> +#define AT_STATX_SYNC_TYPE      0x6000  /* Type of synchronisation required from statx() */
> +#define AT_STATX_SYNC_AS_STAT   0x0000  /* - Do whatever stat() does */
> +#define AT_STATX_FORCE_SYNC     0x2000  /* - Force the attributes to be sync'd with the server */
> +#define AT_STATX_DONT_SYNC      0x4000  /* - Don't sync attributes with the server */
> +#endif
> +
> +#ifndef AT_NO_AUTOMOUNT
> +#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
> +#endif
> +
> +#ifndef __NR_statx
> +# ifdef __i386__
> +#  define __NR_statx 383
> +# elif defined (__ILP32__)
> +#  define __NR_statx (__X32_SYSCALL_BIT + 332)
> +# elif defined (__x86_64__)
> +#  define __NR_statx 332
> +# endif
> +#endif
> +
> +#ifndef STATX_TYPE
> +
> +/*
> + * Timestamp structure for the timestamps in struct statx.
> + *
> + * tv_sec holds the number of seconds before (negative) or after (positive)
> + * 00:00:00 1st January 1970 UTC.
> + *
> + * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
> + * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
> + *
> + * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
> + * either be both positive or both negative.
> + *
> + * __reserved is held in case we need a yet finer resolution.
> + */
> +struct statx_timestamp {
> +	__s64	tv_sec;
> +	__s32	tv_nsec;
> +	__s32	__reserved;
> +};
> +
> +/*
> + * Structures for the extended file attribute retrieval system call
> + * (statx()).
> + *
> + * The caller passes a mask of what they're specifically interested in as a
> + * parameter to statx().  What statx() actually got will be indicated in
> + * st_mask upon return.
> + *
> + * For each bit in the mask argument:
> + *
> + * - if the datum is not supported:
> + *
> + *   - the bit will be cleared, and
> + *
> + *   - the datum will be set to an appropriate fabricated value if one is
> + *     available (eg. CIFS can take a default uid and gid), otherwise
> + *
> + *   - the field will be cleared;
> + *
> + * - otherwise, if explicitly requested:
> + *
> + *   - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
> + *     set or if the datum is considered out of date, and
> + *
> + *   - the field will be filled in and the bit will be set;
> + *
> + * - otherwise, if not requested, but available in approximate form without any
> + *   effort, it will be filled in anyway, and the bit will be set upon return
> + *   (it might not be up to date, however, and no attempt will be made to
> + *   synchronise the internal state first);
> + *
> + * - otherwise the field and the bit will be cleared before returning.
> + *
> + * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
> + * will have values installed for compatibility purposes so that stat() and
> + * co. can be emulated in userspace.
> + */
> +struct statx {
> +	/* 0x00 */
> +	__u32	stx_mask;	/* What results were written [uncond] */
> +	__u32	stx_blksize;	/* Preferred general I/O size [uncond] */
> +	__u64	stx_attributes;	/* Flags conveying information about the file [uncond] */
> +	/* 0x10 */
> +	__u32	stx_nlink;	/* Number of hard links */
> +	__u32	stx_uid;	/* User ID of owner */
> +	__u32	stx_gid;	/* Group ID of owner */
> +	__u16	stx_mode;	/* File mode */
> +	__u16	__spare0[1];
> +	/* 0x20 */
> +	__u64	stx_ino;	/* Inode number */
> +	__u64	stx_size;	/* File size */
> +	__u64	stx_blocks;	/* Number of 512-byte blocks allocated */
> +	__u64	__spare1[1];
> +	/* 0x40 */
> +	struct statx_timestamp	stx_atime;	/* Last access time */
> +	struct statx_timestamp	stx_btime;	/* File creation time */
> +	struct statx_timestamp	stx_ctime;	/* Last attribute change time */
> +	struct statx_timestamp	stx_mtime;	/* Last data modification time */
> +	/* 0x80 */
> +	__u32	stx_rdev_major;	/* Device ID of special file [if bdev/cdev] */
> +	__u32	stx_rdev_minor;
> +	__u32	stx_dev_major;	/* ID of device containing file [uncond] */
> +	__u32	stx_dev_minor;
> +	/* 0x90 */
> +	__u64	__spare2[14];	/* Spare space for future expansion */
> +	/* 0x100 */
> +};
> +
> +/*
> + * Flags to be stx_mask
> + *
> + * Query request/result mask for statx() and struct statx::stx_mask.
> + *
> + * These bits should be set in the mask argument of statx() to request
> + * particular items when calling statx().
> + */
> +#define STATX_TYPE		0x00000001U	/* Want/got stx_mode & S_IFMT */
> +#define STATX_MODE		0x00000002U	/* Want/got stx_mode & ~S_IFMT */
> +#define STATX_NLINK		0x00000004U	/* Want/got stx_nlink */
> +#define STATX_UID		0x00000008U	/* Want/got stx_uid */
> +#define STATX_GID		0x00000010U	/* Want/got stx_gid */
> +#define STATX_ATIME		0x00000020U	/* Want/got stx_atime */
> +#define STATX_MTIME		0x00000040U	/* Want/got stx_mtime */
> +#define STATX_CTIME		0x00000080U	/* Want/got stx_ctime */
> +#define STATX_INO		0x00000100U	/* Want/got stx_ino */
> +#define STATX_SIZE		0x00000200U	/* Want/got stx_size */
> +#define STATX_BLOCKS		0x00000400U	/* Want/got stx_blocks */
> +#define STATX_BASIC_STATS	0x000007ffU	/* The stuff in the normal stat struct */
> +#define STATX_BTIME		0x00000800U	/* Want/got stx_btime */
> +#define STATX_ALL		0x00000fffU	/* All currently supported flags */
> +#define STATX__RESERVED		0x80000000U	/* Reserved for future struct statx expansion */
> +
> +/*
> + * Attributes to be found in stx_attributes
> + *
> + * These give information about the features or the state of a file that might
> + * be of use to ordinary userspace programs such as GUIs or ls rather than
> + * specialised tools.
> + *
> + * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
> + * semantically.  Where possible, the numerical value is picked to correspond
> + * also.
> + */
> +#define STATX_ATTR_COMPRESSED		0x00000004 /* [I] File is compressed by the fs */
> +#define STATX_ATTR_IMMUTABLE		0x00000010 /* [I] File is marked immutable */
> +#define STATX_ATTR_APPEND		0x00000020 /* [I] File is append-only */
> +#define STATX_ATTR_NODUMP		0x00000040 /* [I] File is not to be dumped */
> +#define STATX_ATTR_ENCRYPTED		0x00000800 /* [I] File requires key to decrypt in fs */
> +
> +#define STATX_ATTR_AUTOMOUNT		0x00001000 /* Dir: Automount trigger */
> +
> +#endif /* STATX_TYPE */
> +#endif /* XFS_IO_STATX_H */
> diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8
> index e384327..b09a178 100644
> --- a/man/man8/xfs_io.8
> +++ b/man/man8/xfs_io.8
> @@ -882,6 +882,36 @@ option is specified, the atime (last access), mtime
>  .B \-r
>  option dumps raw fields from the stat structure.
>  .TP
> +.BI "statx [ \-v|\-r ][ \-m " basic " | \-m " all " | -m " <mask> " ][ \-FD ]"
> +Selected statistics from
> +.BR stat (2)
> +and the XFS_IOC_GETXATTR system call on the current file.
> +.RS 1.0i
> +.PD 0
> +.TP 0.4i
> +.B \-v
> +Show timestamps.
> +.TP
> +.B \-r
> +Dump raw statx structure values.
> +.TP
> +.B \-m basic
> +Set the field mask for the statx call to STATX_BASIC_STATS.
> +.TP
> +.B \-m all
> +Set the the field mask for the statx call to STATX_ALL (default).
> +.TP
> +.B \-m <mask>
> +Specify a numeric field mask for the statx call.
> +.TP
> +.B \-F
> +Force the attributes to be synced with the server.
> +.TP
> +.B \-D
> +Don't sync attributes with the server.
> +.PD
> +.RE
> +.TP
>  .B statfs
>  Selected statistics from
>  .BR statfs (2)
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH 0/3 V3] xfs_io: hook up statx

[David Howells]

Eric Sandeen <sandeen@sandeen.net> wrote:

> These 3 patches are a third pass to add a statx command
> to xfs_io in hopes that it will aid creation of xfstests
> statx regression tests.

Reviewed-and-tested-by: David Howells <dhowells@redhat.com>

to V3 of the first and second patches and V5 of the third patch.