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xfs: use an XFS_OPSTATE_ flag for detecting if logged xattrs are available

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Per reviewer request, use an OPSTATE flag (+ helpers) to decide if
logged xattrs are enabled, instead of querying the xfs_sb.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-04-22 09:47:25 -07:00
parent 8ef1d96a98
commit f759784cb6
4 changed files with 24 additions and 3 deletions
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2
fs/xfs/xfs_attr_item.c
View file

@ -469,7 +469,7 @@ xfs_attri_validate(
unsigned int op = attrp->alfi_op_flags &
XFS_ATTRI_OP_FLAGS_TYPE_MASK;
if (!xfs_sb_version_haslogxattrs(&mp->m_sb))
if (!xfs_is_using_logged_xattrs(mp))
return false;
if (attrp->__pad != 0)

16
fs/xfs/xfs_mount.c
View file

@ -231,6 +231,13 @@ xfs_readsb(
mp->m_features |= xfs_sb_version_to_features(sbp);
xfs_reinit_percpu_counters(mp);
/*
* If logged xattrs are enabled after log recovery finishes, then set
* the opstate so that log recovery will work properly.
*/
if (xfs_sb_version_haslogxattrs(&mp->m_sb))
xfs_set_using_logged_xattrs(mp);
/* no need to be quiet anymore, so reset the buf ops */
bp->b_ops = &xfs_sb_buf_ops;
@ -829,6 +836,15 @@ xfs_mountfs(
goto out_inodegc_shrinker;
}
/*
* If logged xattrs are still enabled after log recovery finishes, then
* they'll be available until unmount. Otherwise, turn them off.
*/
if (xfs_sb_version_haslogxattrs(&mp->m_sb))
xfs_set_using_logged_xattrs(mp);
else
xfs_clear_using_logged_xattrs(mp);
/* Enable background inode inactivation workers. */
xfs_inodegc_start(mp);
xfs_blockgc_start(mp);

6
fs/xfs/xfs_mount.h
View file

@ -444,6 +444,8 @@ __XFS_HAS_FEAT(nouuid, NOUUID)
#define XFS_OPSTATE_QUOTACHECK_RUNNING 10
/* Do we want to clear log incompat flags? */
#define XFS_OPSTATE_UNSET_LOG_INCOMPAT 11
/* Filesystem can use logged extended attributes */
#define XFS_OPSTATE_USE_LARP 12
#define __XFS_IS_OPSTATE(name, NAME) \
static inline bool xfs_is_ ## name (struct xfs_mount *mp) \
@ -472,6 +474,7 @@ __XFS_IS_OPSTATE(quotacheck_running, QUOTACHECK_RUNNING)
# define xfs_is_quotacheck_running(mp) (false)
#endif
__XFS_IS_OPSTATE(done_with_log_incompat, UNSET_LOG_INCOMPAT)
__XFS_IS_OPSTATE(using_logged_xattrs, USE_LARP)
static inline bool
xfs_should_warn(struct xfs_mount *mp, long nr)
@ -491,7 +494,8 @@ xfs_should_warn(struct xfs_mount *mp, long nr)
{ (1UL << XFS_OPSTATE_WARNED_SHRINK), "wshrink" }, \
{ (1UL << XFS_OPSTATE_WARNED_LARP), "wlarp" }, \
{ (1UL << XFS_OPSTATE_QUOTACHECK_RUNNING), "quotacheck" }, \
{ (1UL << XFS_OPSTATE_UNSET_LOG_INCOMPAT), "unset_log_incompat" }
{ (1UL << XFS_OPSTATE_UNSET_LOG_INCOMPAT), "unset_log_incompat" }, \
{ (1UL << XFS_OPSTATE_USE_LARP), "logged_xattrs" }
/*
* Max and min values for mount-option defined I/O

3
fs/xfs/xfs_xattr.c
View file

@ -31,7 +31,7 @@ xfs_attr_grab_log_assist(
int error = 0;
/* xattr update log intent items are already enabled */
if (xfs_sb_version_haslogxattrs(&mp->m_sb))
if (xfs_is_using_logged_xattrs(mp))
return 0;
/*
@ -48,6 +48,7 @@ xfs_attr_grab_log_assist(
XFS_SB_FEAT_INCOMPAT_LOG_XATTRS);
if (error)
return error;
xfs_set_using_logged_xattrs(mp);
xfs_warn_mount(mp, XFS_OPSTATE_WARNED_LARP,
"EXPERIMENTAL logged extended attributes feature in use. Use at your own risk!");