[PATCH V3] xfs: cleanup the mount options

Wanlong Gao
2012-07-02T07:05:34Z

remove the mount options macro, use tokens instead.

CC: Ben Myers <bpm@sgi.com>
CC: Christoph Hellwig <hch@infradead.org>
CC: Dave Chinner <david@fromorbit.com>
CC: Zach Brown <zab@zabbo.net>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
---
fs/xfs/xfs_super.c | 510 ++++++++++++++++++++++++++++++++---------------------
1 file changed, 307 insertions(+), 203 deletions(-)

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 0d9de41..021da01 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -66,66 +66,116 @@ static const struct super_operations xfs_super_operations;
static kmem_zone_t *xfs_ioend_zone;
mempool_t *xfs_ioend_pool;

-#define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */
-#define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */
-#define MNTOPT_LOGDEV "logdev" /* log device */
-#define MNTOPT_RTDEV "rtdev" /* realtime I/O device */
-#define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */
-#define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */
-#define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */
-#define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */
-#define MNTOPT_SUNIT "sunit" /* data volume stripe unit */
-#define MNTOPT_SWIDTH "swidth" /* data volume stripe width */
-#define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */
-#define MNTOPT_MTPT "mtpt" /* filesystem mount point */
-#define MNTOPT_GRPID "grpid" /* group-ID from parent directory */
-#define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */
-#define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */
-#define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */
-#define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */
-#define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */
-#define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and
- * unwritten extent conversion */
-#define MNTOPT_NOBARRIER "nobarrier" /* .. disable */
-#define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */
-#define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */
-#define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */
-#define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */
-#define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes
- * in stat(). */
-#define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */
-#define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */
-#define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */
-#define MNTOPT_QUOTA "quota" /* disk quotas (user) */
-#define MNTOPT_NOQUOTA "noquota" /* no quotas */
-#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
-#define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */
-#define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */
-#define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */
-#define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */
-#define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */
-#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
-#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
-#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
-#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
-#define MNTOPT_DELAYLOG "delaylog" /* Delayed logging enabled */
-#define MNTOPT_NODELAYLOG "nodelaylog" /* Delayed logging disabled */
-#define MNTOPT_DISCARD "discard" /* Discard unused blocks */
-#define MNTOPT_NODISCARD "nodiscard" /* Do not discard unused blocks */
+#define MNTOPT_LOGBUFS "logbufs"
+#define MNTOPT_LOGBSIZE "logbsize"
+#define MNTOPT_LOGDEV "logdev"
+#define MNTOPT_RTDEV "rtdev"
+#define MNTOPT_BIOSIZE "biosize"
+#define MNTOPT_WSYNC "wsync"
+#define MNTOPT_NOALIGN "noalign"
+#define MNTOPT_SWALLOC "swalloc"
+#define MNTOPT_SUNIT "sunit"
+#define MNTOPT_SWIDTH "swidth"
+#define MNTOPT_NOUUID "nouuid"
+#define MNTOPT_MTPT "mtpt"
+#define MNTOPT_GRPID "grpid"
+#define MNTOPT_NOGRPID "nogrpid"
+#define MNTOPT_BSDGROUPS "bsdgroups"
+#define MNTOPT_SYSVGROUPS "sysvgroups"
+#define MNTOPT_ALLOCSIZE "allocsize"
+#define MNTOPT_NORECOVERY "norecovery"
+#define MNTOPT_BARRIER "barrier"
+#define MNTOPT_NOBARRIER "nobarrier"
+#define MNTOPT_64BITINODE "inode64"
+#define MNTOPT_IKEEP "ikeep"
+#define MNTOPT_NOIKEEP "noikeep"
+#define MNTOPT_LARGEIO "largeio"
+#define MNTOPT_NOLARGEIO "nolargeio"
+#define MNTOPT_ATTR2 "attr2"
+#define MNTOPT_NOATTR2 "noattr2"
+#define MNTOPT_FILESTREAM "filestreams"
+#define MNTOPT_QUOTA "quota"
+#define MNTOPT_NOQUOTA "noquota"
+#define MNTOPT_USRQUOTA "usrquota"
+#define MNTOPT_GRPQUOTA "grpquota"
+#define MNTOPT_PRJQUOTA "prjquota"
+#define MNTOPT_UQUOTA "uquota"
+#define MNTOPT_GQUOTA "gquota"
+#define MNTOPT_PQUOTA "pquota"
+#define MNTOPT_UQUOTANOENF "uqnoenforce"
+#define MNTOPT_GQUOTANOENF "gqnoenforce"
+#define MNTOPT_PQUOTANOENF "pqnoenforce"
+#define MNTOPT_QUOTANOENF "qnoenforce"
+#define MNTOPT_DELAYLOG "delaylog"
+#define MNTOPT_NODELAYLOG "nodelaylog"
+#define MNTOPT_DISCARD "discard"
+#define MNTOPT_NODISCARD "nodiscard"

-/*
- * Table driven mount option parser.
- *
- * Currently only used for remount, but it will be used for mount
- * in the future, too.
- */
enum {
- Opt_barrier, Opt_nobarrier, Opt_err
+ Opt_logbufs, Opt_logbsize, Opt_logdev, Opt_rtdev, Opt_biosize,
+ Opt_wsync, Opt_noalign, Opt_swalloc, Opt_sunit, Opt_swidth,
+ Opt_nouuid, Opt_mtpt, Opt_grpid, Opt_nogrpid, Opt_bsdgroups,
+ Opt_sysvgroups, Opt_allocsize, Opt_norecovery, Opt_barrier,
+ Opt_nobarrier, Opt_inode64, Opt_ikeep, Opt_noikeep, Opt_largeio,
+ Opt_nolargeio, Opt_attr2, Opt_noattr2, Opt_filestreams, Opt_quota,
+ Opt_noquota, Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_uquota,
+ Opt_gquota, Opt_pquota, Opt_uqnoenf, Opt_gqnoenf, Opt_pqnoenf,
+ Opt_qnoenf, Opt_delaylog, Opt_nodelaylog, Opt_discard, Opt_nodiscard,
+ Opt_ihashsize, Opt_osyncisdsync, Opt_osyncisosync, Opt_irixsgid,
+ Opt_err
};

static const match_table_t tokens = {
- {Opt_barrier, "barrier"},
- {Opt_nobarrier, "nobarrier"},
+ {Opt_logbufs, "logbufs=%d"}, /* number of XFS log buffers */
+ {Opt_logbsize, "logbsize=%s"}, /* size of XFS log buffers */
+ {Opt_logdev, "logdev=%s"}, /* log device */
+ {Opt_rtdev, "rtdev=%s"}, /* realtime I/O device */
+ {Opt_biosize, "biosize=%d"}, /* log2 of preferred buffered io size */
+ {Opt_wsync, "wsync"}, /* safe-mode nfs compatible mount */
+ {Opt_noalign, "noalign"}, /* turn off stripe alignment */
+ {Opt_swalloc, "swalloc"}, /* turn on stripe width allocation */
+ {Opt_sunit, "sunit=%d"}, /* data volume stripe unit */
+ {Opt_swidth, "swidth=%d"}, /* data volume stripe width */
+ {Opt_nouuid, "nouuid"}, /* ignore filesystem UUID */
+ {Opt_mtpt, "mtpt"}, /* filesystem mount point */
+ {Opt_grpid, "grpid"}, /* group-ID from parent directory */
+ {Opt_nogrpid, "nogrpid"}, /* group-ID from current process */
+ {Opt_bsdgroups, "bsdgroups"}, /* group-ID from parent directory */
+ {Opt_sysvgroups, "sysvgroups"}, /* group-ID from current process */
+ {Opt_allocsize, "allocsize=%s"},/* preferred allocation size */
+ {Opt_norecovery, "norecovery"}, /* do not run XFS recovery */
+ {Opt_barrier, "barrier"}, /* use writer barrier for log write and
+ * unwritten extent conversation */
+ {Opt_nobarrier, "nobarrier"}, /* .. disable */
+ {Opt_inode64, "inode64"}, /* inodes can be allocated anywhere */
+ {Opt_ikeep, "ikeep"}, /* do not free empty inode clusters */
+ {Opt_noikeep, "noikeep"}, /* free empty inode clusters */
+ {Opt_largeio, "largeio"}, /* report large I/O sizes in start() */
+ {Opt_nolargeio, "nolargeio"}, /* do not report large I/O sizes
+ * in start() */
+ {Opt_attr2, "attr2"}, /* do use attr2 attribute format */
+ {Opt_noattr2, "noattr2"}, /* do not use attr2 attribute format */
+ {Opt_filestreams, "filestreams"}, /* use filestreams allocator */
+ {Opt_quota, "quota"}, /* disk quotas (user) */
+ {Opt_noquota, "noquota"}, /* no quotas */
+ {Opt_usrquota, "usrquota"}, /* user quota enabled */
+ {Opt_grpquota, "grpquota"}, /* group quota enabled */
+ {Opt_prjquota, "prjquota"}, /* project quota enabled */
+ {Opt_uquota, "uquota"}, /* user quota (IRIX variant) */
+ {Opt_gquota, "gquota"}, /* group quota (IRIX variant) */
+ {Opt_pquota, "pquota"}, /* project quota (IRIX variant) */
+ {Opt_uqnoenf, "uqnoenforce"}, /* user quota limit enforcement */
+ {Opt_gqnoenf, "gqnoenforce"}, /* group quota limit enforcement */
+ {Opt_pqnoenf, "pqnoenforce"}, /* project quota limit enforcement */
+ {Opt_qnoenf, "qnoenforce"}, /* same as uqnoenforce */
+ {Opt_delaylog, "delaylog"}, /* deprecated */
+ {Opt_nodelaylog, "nodelaylog"}, /* deprecated */
+ {Opt_discard, "discard"}, /* Discard unused blocks */
+ {Opt_nodiscard, "nodiscard"}, /* Do not discard unused blocks */
+ {Opt_ihashsize, "ihashsize"}, /* deprecated */
+ {Opt_osyncisdsync, "osyncisdsync"}, /* deprecated */
+ {Opt_osyncisosync, "osyncisosync"}, /* deprecated */
+ {Opt_irixsgid, "irixsgid"}, /* deprecated */
{Opt_err, NULL}
};

@@ -166,11 +216,14 @@ xfs_parseargs(
char *options)
{
struct super_block *sb = mp->m_super;
- char *this_char, *value, *eov;
+ char *p, *string, *eov;
int dsunit = 0;
int dswidth = 0;
- int iosize = 0;
__uint8_t iosizelog = 0;
+ int intarg;
+ substring_t args[MAX_OPT_ARGS];
+ char *orig = NULL;
+ int ret = 0;

/*
* set up the mount name first so all the errors will refer to the
@@ -208,175 +261,224 @@ xfs_parseargs(
if (!options)
goto done;

- while ((this_char = strsep(&options, ",")) != NULL) {
- if (!*this_char)
+ ret = ENOMEM;
+ options = kstrdup(options, GFP_NOFS);
+ if (!options)
+ goto done;
+
+ orig = options;
+
+ while ((p = strsep(&orig, ",")) != NULL) {
+ int token;
+ if (!*p)
continue;
- if ((value = strchr(this_char, '=')) != NULL)
- *value++ = 0;
-
- if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- mp->m_logbufs = simple_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- mp->m_logbsize = suffix_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- mp->m_logname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
+
+ token = match_token(p, tokens, args);
+ switch (token) {
+ case Opt_logbufs:
+ intarg = 0;
+ ret = EINVAL;
+ match_int(args, &intarg);
+ if (!intarg)
+ goto free_orig;
+ mp->m_logbufs = intarg;
+ break;
+ case Opt_logbsize:
+ ret = ENOMEM;
+ string = match_strdup(args);
+ if (!string)
+ goto free_orig;
+ ret = EINVAL;
+ intarg = suffix_strtoul(string, &eov, 0);
+ if (!intarg)
+ goto free_string;
+ mp->m_logbsize = intarg;
+ break;
+ case Opt_logdev:
+ ret = ENOMEM;
+ string = match_strdup(args);
+ if (!string)
+ goto free_orig;
+
+ mp->m_logname = kstrndup(string, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_logname)
- return ENOMEM;
- } else if (!strcmp(this_char, MNTOPT_MTPT)) {
- xfs_warn(mp, "%s option not allowed on this system",
- this_char);
- return EINVAL;
- } else if (!strcmp(this_char, MNTOPT_RTDEV)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
+ goto free_string;
+ break;
+ case Opt_mtpt:
+ ret = EINVAL;
+ xfs_warn(mp, "%s option not allowed on this system", p);
+ goto free_orig;
+ case Opt_rtdev:
+ ret = ENOMEM;
+ string = match_strdup(args);
+ if (!string)
+ goto free_orig;
+ mp->m_rtname = kstrndup(string, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_rtname)
- return ENOMEM;
- } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- iosize = simple_strtoul(value, &eov, 10);
- iosizelog = ffs(iosize) - 1;
- } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- iosize = suffix_strtoul(value, &eov, 10);
- iosizelog = ffs(iosize) - 1;
- } else if (!strcmp(this_char, MNTOPT_GRPID) ||
- !strcmp(this_char, MNTOPT_BSDGROUPS)) {
+ goto free_string;
+ break;
+ case Opt_biosize:
+ intarg = 0;
+ ret = EINVAL;
+ intarg = match_int(args, &intarg);
+ if (!intarg)
+ goto free_orig;
+ iosizelog = ffs(intarg) - 1;
+ break;
+ case Opt_allocsize:
+ ret = ENOMEM;
+ string = match_strdup(args);
+ if (!string)
+ goto free_orig;
+ ret = EINVAL;
+ intarg = suffix_strtoul(string, &eov, 0);
+ if (!intarg)
+ goto free_string;
+ iosizelog = ffs(intarg) - 1;
+ break;
+ case Opt_grpid:
+ case Opt_bsdgroups:
mp->m_flags |= XFS_MOUNT_GRPID;
- } else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
- !strcmp(this_char, MNTOPT_SYSVGROUPS)) {
+ break;
+ case Opt_nogrpid:
+ case Opt_sysvgroups:
mp->m_flags &= ~XFS_MOUNT_GRPID;
- } else if (!strcmp(this_char, MNTOPT_WSYNC)) {
+ break;
+ case Opt_wsync:
mp->m_flags |= XFS_MOUNT_WSYNC;
- } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
+ break;
+ case Opt_norecovery:
mp->m_flags |= XFS_MOUNT_NORECOVERY;
- } else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
+ break;
+ case Opt_noalign:
mp->m_flags |= XFS_MOUNT_NOALIGN;
- } else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
+ break;
+ case Opt_swalloc:
mp->m_flags |= XFS_MOUNT_SWALLOC;
- } else if (!strcmp(this_char, MNTOPT_SUNIT)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- dsunit = simple_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
- if (!value || !*value) {
- xfs_warn(mp, "%s option requires an argument",
- this_char);
- return EINVAL;
- }
- dswidth = simple_strtoul(value, &eov, 10);
- } else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
+ break;
+ case Opt_sunit:
+ ret = EINVAL;
+ dsunit = match_int(args, &intarg);
+ if (!dsunit)
+ goto free_orig;
+ break;
+ case Opt_swidth:
+ ret = EINVAL;
+ dswidth = match_int(args, &intarg);
+ if (!dswidth)
+ goto free_orig;
+ case Opt_inode64:
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
#if !XFS_BIG_INUMS
- xfs_warn(mp, "%s option not allowed on this system",
- this_char);
+ xfs_warn(mp, "%s options not allowed on this system", p);
return EINVAL;
#endif
- } else if (!strcmp(this_char, MNTOPT_NOUUID)) {
+ break;
+ case Opt_nouuid:
mp->m_flags |= XFS_MOUNT_NOUUID;
- } else if (!strcmp(this_char, MNTOPT_BARRIER)) {
+ break;
+ case Opt_barrier:
mp->m_flags |= XFS_MOUNT_BARRIER;
- } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
+ break;
+ case Opt_nobarrier:
mp->m_flags &= ~XFS_MOUNT_BARRIER;
- } else if (!strcmp(this_char, MNTOPT_IKEEP)) {
+ break;
+ case Opt_ikeep:
mp->m_flags |= XFS_MOUNT_IKEEP;
- } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
+ break;
+ case Opt_noikeep:
mp->m_flags &= ~XFS_MOUNT_IKEEP;
- } else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
+ break;
+ case Opt_largeio:
mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE;
- } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
+ break;
+ case Opt_nolargeio:
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
- } else if (!strcmp(this_char, MNTOPT_ATTR2)) {
+ break;
+ case Opt_attr2:
mp->m_flags |= XFS_MOUNT_ATTR2;
- } else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
+ break;
+ case Opt_noattr2:
mp->m_flags &= ~XFS_MOUNT_ATTR2;
mp->m_flags |= XFS_MOUNT_NOATTR2;
- } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
+ break;
+ case Opt_filestreams:
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
- } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
+ break;
+ case Opt_noquota:
mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT;
mp->m_qflags &= ~XFS_ALL_QUOTA_ENFD;
mp->m_qflags &= ~XFS_ALL_QUOTA_ACTIVE;
- } else if (!strcmp(this_char, MNTOPT_QUOTA) ||
- !strcmp(this_char, MNTOPT_UQUOTA) ||
- !strcmp(this_char, MNTOPT_USRQUOTA)) {
+ break;
+ case Opt_quota:
+ case Opt_uquota:
+ case Opt_usrquota:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_UQUOTA_ENFD);
- } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
- !strcmp(this_char, MNTOPT_UQUOTANOENF)) {
+ break;
+ case Opt_qnoenf:
+ case Opt_uqnoenf:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_UQUOTA_ENFD;
- } else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
- !strcmp(this_char, MNTOPT_PRJQUOTA)) {
+ break;
+ case Opt_pquota:
+ case Opt_prjquota:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_OQUOTA_ENFD);
- } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
+ break;
+ case Opt_pqnoenf:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_OQUOTA_ENFD;
- } else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
- !strcmp(this_char, MNTOPT_GRPQUOTA)) {
+ break;
+ case Opt_gquota:
+ case Opt_grpquota:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_OQUOTA_ENFD);
- } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
+ break;
+ case Opt_gqnoenf:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_OQUOTA_ENFD;
- } else if (!strcmp(this_char, MNTOPT_DELAYLOG)) {
+ break;
+ case Opt_delaylog:
xfs_warn(mp,
- "delaylog is the default now, option is deprecated.");
- } else if (!strcmp(this_char, MNTOPT_NODELAYLOG)) {
+ "delaylog is the default now, option is deprecated.");
+ break;
+ case Opt_nodelaylog:
xfs_warn(mp,
- "nodelaylog support has been removed, option is deprecated.");
- } else if (!strcmp(this_char, MNTOPT_DISCARD)) {
+ "nodelaylog support has been removed, option is deprecated.");
+ break;
+ case Opt_discard:
mp->m_flags |= XFS_MOUNT_DISCARD;
- } else if (!strcmp(this_char, MNTOPT_NODISCARD)) {
+ break;
+ case Opt_nodiscard:
mp->m_flags &= ~XFS_MOUNT_DISCARD;
- } else if (!strcmp(this_char, "ihashsize")) {
+ break;
+ case Opt_ihashsize:
xfs_warn(mp,
- "ihashsize no longer used, option is deprecated.");
- } else if (!strcmp(this_char, "osyncisdsync")) {
+ "ihashsize no longer used, option is deprecated.");
+ case Opt_osyncisdsync:
xfs_warn(mp,
- "osyncisdsync has no effect, option is deprecated.");
- } else if (!strcmp(this_char, "osyncisosync")) {
+ "osyncisdsync has no effect, option is deprecated.");
+ break;
+ case Opt_osyncisosync:
xfs_warn(mp,
- "osyncisosync has no effect, option is deprecated.");
- } else if (!strcmp(this_char, "irixsgid")) {
+ "osyncisosync has no effect, option is deprecated.");
+ break;
+ case Opt_irixsgid:
xfs_warn(mp,
- "irixsgid is now a sysctl(2) variable, option is deprecated.");
- } else {
- xfs_warn(mp, "unknown mount option [%s].", this_char);
- return EINVAL;
+ "irixsgid is now a sysctl(2) variable, option is deprecated.");
+ break;
+ default:
+ xfs_warn(mp, "unknown mount option [%s].", p);
+ break;
}
+
+ kfree(string);
+ string = NULL;
}

+ kfree(orig);
+
/*
* no recovery flag requires a read-only mount
*/
@@ -468,6 +570,12 @@ done:
}

return 0;
+
+free_string:
+ kfree(string);
+free_orig:
+ kfree(orig);
+ return ret;
}

struct proc_xfs_info {
@@ -476,10 +584,12 @@ struct proc_xfs_info {
};

STATIC int
-xfs_showargs(
- struct xfs_mount *mp,
- struct seq_file *m)
+xfs_fs_show_options(
+ struct seq_file *seq,
+ struct dentry *dentry)
{
+ struct xfs_mount *mp = XFS_M(dentry->d_sb);
+
static struct proc_xfs_info xfs_info_set[] = {
/* the few simple ones we can get from the mount struct */
{ XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP },
@@ -505,58 +615,60 @@ xfs_showargs(

for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) {
if (mp->m_flags & xfs_infop->flag)
- seq_puts(m, xfs_infop->str);
+ seq_puts(seq, xfs_infop->str);
}
for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) {
if (!(mp->m_flags & xfs_infop->flag))
- seq_puts(m, xfs_infop->str);
+ seq_puts(seq, xfs_infop->str);
}

if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
- seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk",
+ seq_printf(seq, "," MNTOPT_ALLOCSIZE "=%dk",
(int)(1 << mp->m_writeio_log) >> 10);

if (mp->m_logbufs > 0)
- seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
+ seq_printf(seq, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
if (mp->m_logbsize > 0)
- seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10);
+ seq_printf(seq, "," MNTOPT_LOGBSIZE "=%dk",
+ mp->m_logbsize >> 10);

if (mp->m_logname)
- seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname);
+ seq_printf(seq, "," MNTOPT_LOGDEV "=%s", mp->m_logname);
if (mp->m_rtname)
- seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname);
+ seq_printf(seq, "," MNTOPT_RTDEV "=%s", mp->m_rtname);

if (mp->m_dalign > 0)
- seq_printf(m, "," MNTOPT_SUNIT "=%d",
+ seq_printf(seq, "," MNTOPT_SUNIT "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_dalign));
if (mp->m_swidth > 0)
- seq_printf(m, "," MNTOPT_SWIDTH "=%d",
+ seq_printf(seq, "," MNTOPT_SWIDTH "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_swidth));

if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD))
- seq_puts(m, "," MNTOPT_USRQUOTA);
+ seq_puts(seq, "," MNTOPT_USRQUOTA);
else if (mp->m_qflags & XFS_UQUOTA_ACCT)
- seq_puts(m, "," MNTOPT_UQUOTANOENF);
+ seq_puts(seq, "," MNTOPT_UQUOTANOENF);

/* Either project or group quotas can be active, not both */

if (mp->m_qflags & XFS_PQUOTA_ACCT) {
if (mp->m_qflags & XFS_OQUOTA_ENFD)
- seq_puts(m, "," MNTOPT_PRJQUOTA);
+ seq_puts(seq, "," MNTOPT_PRJQUOTA);
else
- seq_puts(m, "," MNTOPT_PQUOTANOENF);
+ seq_puts(seq, "," MNTOPT_PQUOTANOENF);
} else if (mp->m_qflags & XFS_GQUOTA_ACCT) {
if (mp->m_qflags & XFS_OQUOTA_ENFD)
- seq_puts(m, "," MNTOPT_GRPQUOTA);
+ seq_puts(seq, "," MNTOPT_GRPQUOTA);
else
- seq_puts(m, "," MNTOPT_GQUOTANOENF);
+ seq_puts(seq, "," MNTOPT_GQUOTANOENF);
}

if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
- seq_puts(m, "," MNTOPT_NOQUOTA);
+ seq_puts(seq, "," MNTOPT_NOQUOTA);

return 0;
}
+
__uint64_t
xfs_max_file_offset(
unsigned int blockshift)
@@ -1221,14 +1333,6 @@ xfs_fs_unfreeze(
return 0;
}

-STATIC int
-xfs_fs_show_options(
- struct seq_file *m,
- struct dentry *root)
-{
- return -xfs_showargs(XFS_M(root->d_sb), m);
-}
-
/*
* This function fills in xfs_mount_t fields based on mount args.
* Note: the superblock _has_ now been read in.
--
1.7.11.rc0