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authorChristoph Hellwig <hch@infradead.org>2007-08-29 11:59:36 +1000
committerTim Shimmin <tes@chook.melbourne.sgi.com>2007-10-16 11:41:15 +1000
commit293688ec420f1160ed93ea4c7948ed5baf8bafa7 (patch)
tree3e342f759b3ae0499eedcb8f050dd2c4c1b48e93 /fs/xfs/xfs_vfsops.c
parentf541d270dbce375b7bd8cef466bdaf0cff945b45 (diff)
downloadop-kernel-dev-293688ec420f1160ed93ea4c7948ed5baf8bafa7.zip
op-kernel-dev-293688ec420f1160ed93ea4c7948ed5baf8bafa7.tar.gz
[XFS] remove dependency of the dmapi module on behaviors
Mount options are now parsed by the main XFS module and rejected if dmapi support is not available, and there is a new dm operation to send the mount event. SGI-PV: 969608 SGI-Modid: xfs-linux-melb:xfs-kern:29502a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_vfsops.c')
-rw-r--r--fs/xfs/xfs_vfsops.c31
1 files changed, 28 insertions, 3 deletions
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index 8c0e022..1cf8f54 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -326,6 +326,8 @@ xfs_start_flags(
if (ap->flags2 & XFSMNT2_FILESTREAMS)
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
+ if (ap->flags & XFSMNT_DMAPI)
+ vfs->vfs_flag |= VFS_DMI;
return 0;
}
@@ -430,11 +432,13 @@ xfs_mount(
ddev = vfsp->vfs_super->s_bdev;
logdev = rtdev = NULL;
+ error = xfs_dmops_get(mp, args);
+ if (error)
+ return error;
+
/*
* Setup xfs_mount function vectors from available behaviors
*/
- p = vfs_bhv_lookup(vfsp, VFS_POSITION_DM);
- mp->m_dm_ops = p ? *(xfs_dmops_t *) vfs_bhv_custom(p) : xfs_dmcore_stub;
p = vfs_bhv_lookup(vfsp, VFS_POSITION_QM);
mp->m_qm_ops = p ? *(xfs_qmops_t *) vfs_bhv_custom(p) : xfs_qmcore_stub;
p = vfs_bhv_lookup(vfsp, VFS_POSITION_IO);
@@ -537,6 +541,8 @@ xfs_mount(
if (error)
goto error2;
+ XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname);
+
return 0;
error2:
@@ -550,6 +556,7 @@ error1:
xfs_binval(mp->m_rtdev_targp);
error0:
xfs_unmountfs_close(mp, credp);
+ xfs_dmops_put(mp);
return error;
}
@@ -640,6 +647,7 @@ out:
* and free the super block buffer & mount structures.
*/
xfs_unmountfs(mp, credp);
+ xfs_dmops_put(mp);
kmem_free(mp, sizeof(xfs_mount_t));
}
@@ -1688,6 +1696,9 @@ xfs_vget(
#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_DMAPI "dmapi" /* DMI enabled (DMAPI / XDSM) */
+#define MNTOPT_XDSM "xdsm" /* DMI enabled (DMAPI / XDSM) */
+#define MNTOPT_DMI "dmi" /* DMI enabled (DMAPI / XDSM) */
STATIC unsigned long
suffix_strtoul(char *s, char **endp, unsigned int base)
@@ -1878,6 +1889,12 @@ xfs_parseargs(
args->flags &= ~XFSMNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
args->flags2 |= XFSMNT2_FILESTREAMS;
+ } else if (!strcmp(this_char, MNTOPT_DMAPI)) {
+ args->flags |= XFSMNT_DMAPI;
+ } else if (!strcmp(this_char, MNTOPT_XDSM)) {
+ args->flags |= XFSMNT_DMAPI;
+ } else if (!strcmp(this_char, MNTOPT_DMI)) {
+ args->flags |= XFSMNT_DMAPI;
} else if (!strcmp(this_char, "ihashsize")) {
cmn_err(CE_WARN,
"XFS: ihashsize no longer used, option is deprecated.");
@@ -1909,6 +1926,12 @@ xfs_parseargs(
return EINVAL;
}
+ if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') {
+ printk("XFS: %s option needs the mount point option as well\n",
+ MNTOPT_DMAPI);
+ return EINVAL;
+ }
+
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth must be specified together");
@@ -2002,6 +2025,9 @@ xfs_showargs(
if (vfsp->vfs_flag & VFS_GRPID)
seq_printf(m, "," MNTOPT_GRPID);
+ if (vfsp->vfs_flag & VFS_DMI)
+ seq_puts(m, "," MNTOPT_DMAPI);
+
return 0;
}
@@ -2032,7 +2058,6 @@ bhv_vfsops_t xfs_vfsops = {
.vfs_statvfs = xfs_statvfs,
.vfs_sync = xfs_sync,
.vfs_vget = xfs_vget,
- .vfs_dmapiops = (vfs_dmapiops_t)fs_nosys,
.vfs_quotactl = (vfs_quotactl_t)fs_nosys,
.vfs_init_vnode = xfs_initialize_vnode,
.vfs_force_shutdown = xfs_do_force_shutdown,
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