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xfs: standardize EXPERIMENTAL warning generation

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Refactor the open-coded warnings about EXPERIMENTAL feature use into a
standard helper before we go adding more experimental features.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-11-03 20:18:49 -08:00
parent 4d272929a5
commit ecc8065dfa
8 changed files with 81 additions and 28 deletions
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3
fs/xfs/scrub/scrub.c
View File

@ -605,8 +605,7 @@ xfs_scrub_metadata(
if (error)
goto out;
xfs_warn_mount(mp, XFS_OPSTATE_WARNED_SCRUB,
"EXPERIMENTAL online scrub feature in use. Use at your own risk!");
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_SCRUB);
sc = kzalloc(sizeof(struct xfs_scrub), XCHK_GFP_FLAGS);
if (!sc) {

4
fs/xfs/xfs_fsops.c
View File

@ -162,9 +162,7 @@ xfs_growfs_data_private(
error = xfs_resizefs_init_new_ags(tp, &id, oagcount, nagcount,
delta, last_pag, &lastag_extended);
} else {
xfs_warn_mount(mp, XFS_OPSTATE_WARNED_SHRINK,
"EXPERIMENTAL online shrink feature in use. Use at your own risk!");
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_SHRINK);
error = xfs_ag_shrink_space(last_pag, &tp, -delta);
}
xfs_perag_put(last_pag);

47
fs/xfs/xfs_message.c
View File

@ -131,3 +131,50 @@ xfs_buf_alert_ratelimited(
__xfs_printk(KERN_ALERT, mp, &vaf);
va_end(args);
}
void
xfs_warn_experimental(
struct xfs_mount *mp,
enum xfs_experimental_feat feat)
{
static const struct {
const char *name;
long opstate;
} features[] = {
[XFS_EXPERIMENTAL_PNFS] = {
.opstate = XFS_OPSTATE_WARNED_PNFS,
.name = "pNFS",
},
[XFS_EXPERIMENTAL_SCRUB] = {
.opstate = XFS_OPSTATE_WARNED_SCRUB,
.name = "online scrub",
},
[XFS_EXPERIMENTAL_SHRINK] = {
.opstate = XFS_OPSTATE_WARNED_SHRINK,
.name = "online shrink",
},
[XFS_EXPERIMENTAL_LARP] = {
.opstate = XFS_OPSTATE_WARNED_LARP,
.name = "logged extended attributes",
},
[XFS_EXPERIMENTAL_LBS] = {
.opstate = XFS_OPSTATE_WARNED_LBS,
.name = "large block size",
},
[XFS_EXPERIMENTAL_EXCHRANGE] = {
.opstate = XFS_OPSTATE_WARNED_EXCHRANGE,
.name = "exchange range",
},
[XFS_EXPERIMENTAL_PPTR] = {
.opstate = XFS_OPSTATE_WARNED_PPTR,
.name = "parent pointer",
},
};
ASSERT(feat >= 0 && feat < XFS_EXPERIMENTAL_MAX);
BUILD_BUG_ON(ARRAY_SIZE(features) != XFS_EXPERIMENTAL_MAX);
if (xfs_should_warn(mp, features[feat].opstate))
xfs_warn(mp,
"EXPERIMENTAL %s feature enabled. Use at your own risk!",
features[feat].name);
}

19
fs/xfs/xfs_message.h
View File

@ -75,12 +75,6 @@ do { \
#define xfs_debug_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_debug, dev, fmt, ##__VA_ARGS__)
#define xfs_warn_mount(mp, warntag, fmt, ...) \
do { \
if (xfs_should_warn((mp), (warntag))) \
xfs_warn((mp), (fmt), ##__VA_ARGS__); \
} while (0)
#define xfs_warn_once(dev, fmt, ...) \
xfs_printk_once(xfs_warn, dev, fmt, ##__VA_ARGS__)
#define xfs_notice_once(dev, fmt, ...) \
@ -96,4 +90,17 @@ extern void xfs_hex_dump(const void *p, int length);
void xfs_buf_alert_ratelimited(struct xfs_buf *bp, const char *rlmsg,
const char *fmt, ...);
enum xfs_experimental_feat {
XFS_EXPERIMENTAL_PNFS,
XFS_EXPERIMENTAL_SCRUB,
XFS_EXPERIMENTAL_SHRINK,
XFS_EXPERIMENTAL_LARP,
XFS_EXPERIMENTAL_LBS,
XFS_EXPERIMENTAL_EXCHRANGE,
XFS_EXPERIMENTAL_PPTR,
XFS_EXPERIMENTAL_MAX,
};
void xfs_warn_experimental(struct xfs_mount *mp, enum xfs_experimental_feat f);
#endif /* __XFS_MESSAGE_H */

20
fs/xfs/xfs_mount.h
View File

@ -467,18 +467,26 @@ __XFS_HAS_FEAT(nouuid, NOUUID)
*/
#define XFS_OPSTATE_BLOCKGC_ENABLED 6
/* Kernel has logged a warning about pNFS being used on this fs. */
#define XFS_OPSTATE_WARNED_PNFS 7
/* Kernel has logged a warning about online fsck being used on this fs. */
#define XFS_OPSTATE_WARNED_SCRUB 7
#define XFS_OPSTATE_WARNED_SCRUB 8
/* Kernel has logged a warning about shrink being used on this fs. */
#define XFS_OPSTATE_WARNED_SHRINK 8
#define XFS_OPSTATE_WARNED_SHRINK 9
/* Kernel has logged a warning about logged xattr updates being used. */
#define XFS_OPSTATE_WARNED_LARP 9
#define XFS_OPSTATE_WARNED_LARP 10
/* Mount time quotacheck is running */
#define XFS_OPSTATE_QUOTACHECK_RUNNING 10
#define XFS_OPSTATE_QUOTACHECK_RUNNING 11
/* Do we want to clear log incompat flags? */
#define XFS_OPSTATE_UNSET_LOG_INCOMPAT 11
#define XFS_OPSTATE_UNSET_LOG_INCOMPAT 12
/* Filesystem can use logged extended attributes */
#define XFS_OPSTATE_USE_LARP 12
#define XFS_OPSTATE_USE_LARP 13
/* Kernel has logged a warning about blocksize > pagesize on this fs. */
#define XFS_OPSTATE_WARNED_LBS 14
/* Kernel has logged a warning about exchange-range being used on this fs. */
#define XFS_OPSTATE_WARNED_EXCHRANGE 15
/* Kernel has logged a warning about parent pointers being used on this fs. */
#define XFS_OPSTATE_WARNED_PPTR 16
#define __XFS_IS_OPSTATE(name, NAME) \
static inline bool xfs_is_ ## name (struct xfs_mount *mp) \

3
fs/xfs/xfs_pnfs.c
View File

@ -58,8 +58,7 @@ xfs_fs_get_uuid(
{
struct xfs_mount *mp = XFS_M(sb);
xfs_notice_once(mp,
"Using experimental pNFS feature, use at your own risk!");
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_PNFS);
if (*len < sizeof(uuid_t))
return -EINVAL;

10
fs/xfs/xfs_super.c
View File

@ -1657,9 +1657,7 @@ xfs_fs_fill_super(
goto out_free_sb;
}
xfs_warn(mp,
"EXPERIMENTAL: V5 Filesystem with Large Block Size (%d bytes) enabled.",
mp->m_sb.sb_blocksize);
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_LBS);
}
/* Ensure this filesystem fits in the page cache limits */
@ -1755,12 +1753,10 @@ xfs_fs_fill_super(
}
if (xfs_has_exchange_range(mp))
xfs_warn(mp,
"EXPERIMENTAL exchange-range feature enabled. Use at your own risk!");
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_EXCHRANGE);
if (xfs_has_parent(mp))
xfs_warn(mp,
"EXPERIMENTAL parent pointer feature enabled. Use at your own risk!");
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_PPTR);
error = xfs_mountfs(mp);
if (error)

3
fs/xfs/xfs_xattr.c
View File

@ -51,8 +51,7 @@ xfs_attr_grab_log_assist(
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!");
xfs_warn_experimental(mp, XFS_EXPERIMENTAL_LARP);
return 0;
}