[PATCH 2/4] xfsprogs: support CRC enabled filesystem detection

From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 2/4] xfsprogs: support CRC enabled filesystem detection
Date: Mon, 27 May 2013 17:14:54 +1000	[thread overview]
Message-ID: <1369638896-24872-3-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1369638896-24872-1-git-send-email-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

Add the XFS_FSOP_GEOM_FLAGS_V5SB flag to the XFS_IOC_FSGEOMETRY
ioctl to allow utilities like xfs_info to detect that the filesystem
is CRC enabled.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 growfs/xfs_growfs.c |    9 +++++++--
 include/xfs_fs.h    |    1 +
 mkfs/xfs_mkfs.c     |    2 +-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/growfs/xfs_growfs.c b/growfs/xfs_growfs.c
index 5d544da..7d80f84 100644
--- a/growfs/xfs_growfs.c
+++ b/growfs/xfs_growfs.c
@@ -53,11 +53,13 @@ report_info(
 	int		dirversion,
 	int		logversion,
 	int		attrversion,
+	int		crcs_enabled,
 	int		cimode)
 {
 	printf(_(
 	    "meta-data=%-22s isize=%-6u agcount=%u, agsize=%u blks\n"
 	    "         =%-22s sectsz=%-5u attr=%u\n"
+	    "         =%-22s crc=%u\n"
 	    "data     =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n"
 	    "         =%-22s sunit=%-6u swidth=%u blks\n"
 	    "naming   =version %-14u bsize=%-6u ascii-ci=%d\n"
@@ -67,6 +69,7 @@ report_info(
 
 		mntpoint, geo.inodesize, geo.agcount, geo.agblocks,
 		"", geo.sectsize, attrversion,
+		"", crcs_enabled,
 		"", geo.blocksize, (unsigned long long)geo.datablocks,
 			geo.imaxpct,
 		"", geo.sunit, geo.swidth,
@@ -115,6 +118,7 @@ main(int argc, char **argv)
 	char			*rtdev;	/*   RT device name */
 	fs_path_t		*fs;	/* mount point information */
 	libxfs_init_t		xi;	/* libxfs structure */
+	int			crcs_enabled;
 
 	progname = basename(argv[0]);
 	setlocale(LC_ALL, "");
@@ -234,10 +238,11 @@ main(int argc, char **argv)
 	attrversion = geo.flags & XFS_FSOP_GEOM_FLAGS_ATTR2 ? 2 : \
 			(geo.flags & XFS_FSOP_GEOM_FLAGS_ATTR ? 1 : 0);
 	ci = geo.flags & XFS_FSOP_GEOM_FLAGS_DIRV2CI ? 1 : 0;
+	crcs_enabled = geo.flags & XFS_FSOP_GEOM_FLAGS_V5SB ? 1 : 0;
 	if (nflag) {
 		report_info(geo, datadev, isint, logdev, rtdev,
 				lazycount, dirversion, logversion,
-				attrversion, ci);
+				attrversion, crcs_enabled, ci);
 		exit(0);
 	}
 
@@ -274,7 +279,7 @@ main(int argc, char **argv)
 
 	report_info(geo, datadev, isint, logdev, rtdev,
 			lazycount, dirversion, logversion,
-			attrversion, ci);
+			attrversion, crcs_enabled, ci);
 
 	ddsize = xi.dsize;
 	dlsize = ( xi.logBBsize? xi.logBBsize :
diff --git a/include/xfs_fs.h b/include/xfs_fs.h
index 1cc1aa0..44b69e7 100644
--- a/include/xfs_fs.h
+++ b/include/xfs_fs.h
@@ -236,6 +236,7 @@ typedef struct xfs_fsop_resblks {
 #define XFS_FSOP_GEOM_FLAGS_PROJID32	0x0800  /* 32-bit project IDs	*/
 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI	0x1000	/* ASCII only CI names	*/
 #define XFS_FSOP_GEOM_FLAGS_LAZYSB	0x4000	/* lazy superblock counters */
+#define XFS_FSOP_GEOM_FLAGS_V5SB	0x8000	/* version 5 superblock */
 
 
 /*
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index dad7dab..9bc672e 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2425,7 +2425,7 @@ an AG size that is one stripe unit smaller, for example %llu.\n"),
 		printf(_(
 		   "meta-data=%-22s isize=%-6d agcount=%lld, agsize=%lld blks\n"
 		   "         =%-22s sectsz=%-5u attr=%u, projid32bit=%u\n"
-		   "         =%-22s crc=%-5u\n"
+		   "         =%-22s crc=%u\n"
 		   "data     =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n"
 		   "         =%-22s sunit=%-6u swidth=%u blks\n"
 		   "naming   =version %-14u bsize=%-6u ascii-ci=%d\n"
-- 
1.7.10.4

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