* the first a.g. fails.
*/
if ((args->datatype & XFS_ALLOC_INITIAL_USER_DATA) &&
- (mp->m_flags & XFS_MOUNT_32BITINODES)) {
+ xfs_is_inode32(mp)) {
args->fsbno = XFS_AGB_TO_FSB(mp,
((mp->m_agfrotor / rotorstep) %
mp->m_sb.sb_agcount), 0);
"Superblock has unknown read-only compatible features (0x%x) enabled.",
(sbp->sb_features_ro_compat &
XFS_SB_FEAT_RO_COMPAT_UNKNOWN));
- if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (!xfs_is_readonly(mp)) {
xfs_warn(mp,
"Attempted to mount read-only compatible filesystem read-write.");
xfs_warn(mp,
* Readonly filesystems do not perform inactivation or speculative
* preallocation, so there's no need to restart the workers.
*/
- if (!(sc->mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (!xfs_is_readonly(sc->mp)) {
xfs_inodegc_start(sc->mp);
xfs_blockgc_start(sc->mp);
}
goto out;
error = -EROFS;
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
goto out;
}
return true;
/* At unmount we may treat errors differently */
- if ((mp->m_flags & XFS_MOUNT_UNMOUNTING) && mp->m_fail_unmount)
+ if (xfs_is_unmounting(mp) && mp->m_fail_unmount)
return true;
return false;
int *max_len,
struct inode *parent)
{
+ struct xfs_mount *mp = XFS_M(inode->i_sb);
struct fid *fid = (struct fid *)fh;
struct xfs_fid64 *fid64 = (struct xfs_fid64 *)fh;
int fileid_type;
* large enough filesystem may contain them, thus the slightly
* confusing looking conditional below.
*/
- if (!xfs_has_small_inums(XFS_M(inode->i_sb)) ||
- (XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_32BITINODES))
+ if (!xfs_has_small_inums(mp) || xfs_is_inode32(mp))
fileid_type |= XFS_FILEID_TYPE_64FLAG;
/*
* Set the starting AG using the rotor for inode32, otherwise
* use the directory inode's AG.
*/
- if (mp->m_flags & XFS_MOUNT_32BITINODES) {
+ if (xfs_is_inode32(mp)) {
xfs_agnumber_t rotorstep = xfs_rotorstep;
startag = (mp->m_agfrotor / rotorstep) % mp->m_sb.sb_agcount;
mp->m_agfrotor = (mp->m_agfrotor + 1) %
int tag;
const char *why;
- spin_lock(&mp->m_sb_lock);
- if (XFS_FORCED_SHUTDOWN(mp)) {
- spin_unlock(&mp->m_sb_lock);
+ if (test_and_set_bit(XFS_OPSTATE_SHUTDOWN, &mp->m_opstate))
return;
- }
- mp->m_flags |= XFS_MOUNT_FS_SHUTDOWN;
if (mp->m_sb_bp)
mp->m_sb_bp->b_flags |= XBF_DONE;
- spin_unlock(&mp->m_sb_lock);
if (flags & SHUTDOWN_FORCE_UMOUNT)
xfs_alert(mp, "User initiated shutdown received.");
xfs_want_reclaim_sick(
struct xfs_mount *mp)
{
- return (mp->m_flags & XFS_MOUNT_UNMOUNTING) || xfs_has_norecovery(mp) ||
+ return xfs_is_unmounting(mp) || xfs_has_norecovery(mp) ||
XFS_FORCED_SHUTDOWN(mp);
}
return 0;
/* If this is a read-only mount, don't do this (would generate I/O) */
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
return 0;
if (!XFS_FORCED_SHUTDOWN(mp)) {
return false;
/* If this is a read-only mount, don't do this (would generate I/O) */
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
return false;
/* If the log isn't running, push inodes straight to reclaim. */
ASSERT(!xfs_iflags_test(ip, XFS_IRECOVERY));
/* If this is a read-only mount, don't do this (would generate I/O) */
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
goto out;
/* Metadata inodes require explicit resource cleanup. */
struct xfs_trans *tp;
int error = -EROFS;
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
goto out_error;
error = -EIO;
if (XFS_FORCED_SHUTDOWN(mp))
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
return -EROFS;
if (copy_from_user(&inout, arg, sizeof(inout)))
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
return -EROFS;
if (copy_from_user(&eofb, arg, sizeof(eofb)))
{
struct xfs_mount *mp = XFS_I(d_inode(dentry))->i_mount;
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (xfs_is_readonly(mp))
return -EROFS;
if (XFS_FORCED_SHUTDOWN(mp))
xfs_notice(mp,
"Mounting V%d filesystem in no-recovery mode. Filesystem will be inconsistent.",
XFS_SB_VERSION_NUM(&mp->m_sb));
- ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
+ ASSERT(xfs_is_readonly(mp));
}
log = xlog_alloc_log(mp, log_target, blk_offset, num_bblks);
* just worked.
*/
if (!xfs_has_norecovery(mp)) {
- bool readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
-
- if (readonly)
- mp->m_flags &= ~XFS_MOUNT_RDONLY;
-
+ /*
+ * log recovery ignores readonly state and so we need to clear
+ * mount-based read only state so it can write to disk.
+ */
+ bool readonly = test_and_clear_bit(XFS_OPSTATE_READONLY,
+ &mp->m_opstate);
error = xlog_recover(log);
-
if (readonly)
- mp->m_flags |= XFS_MOUNT_RDONLY;
+ set_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
if (error) {
xfs_warn(mp, "log mount/recovery failed: error %d",
error);
struct xfs_mount *mp)
{
struct xlog *log = mp->m_log;
- bool readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
+ bool readonly;
int error = 0;
if (xfs_has_norecovery(mp)) {
- ASSERT(readonly);
+ ASSERT(xfs_is_readonly(mp));
return 0;
- } else if (readonly) {
- /* Allow unlinked processing to proceed */
- mp->m_flags &= ~XFS_MOUNT_RDONLY;
}
+ /*
+ * log recovery ignores readonly state and so we need to clear
+ * mount-based read only state so it can write to disk.
+ */
+ readonly = test_and_clear_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
+
/*
* During the second phase of log recovery, we need iget and
* iput to behave like they do for an active filesystem.
clear_bit(XLOG_RECOVERY_NEEDED, &log->l_opstate);
if (readonly)
- mp->m_flags |= XFS_MOUNT_RDONLY;
+ set_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
/* Make sure the log is dead if we're returning failure. */
ASSERT(!error || xlog_is_shutdown(log));
* headers if we have a filesystem using non-persistent counters.
*/
if (clean)
- log->l_mp->m_flags |= XFS_MOUNT_WAS_CLEAN;
+ set_bit(XFS_OPSTATE_CLEAN, &log->l_mp->m_opstate);
/*
* Make sure that there are no blocks in front of the head
* counters. If any of them are obviously incorrect, we can recompute
* them from the AGF headers in the next step.
*/
- if (XFS_LAST_UNMOUNT_WAS_CLEAN(mp) &&
+ if (xfs_is_clean(mp) &&
(mp->m_sb.sb_fdblocks > mp->m_sb.sb_dblocks ||
!xfs_verify_icount(mp, mp->m_sb.sb_icount) ||
mp->m_sb.sb_ifree > mp->m_sb.sb_icount))
* superblock to be correct and we don't need to do anything here.
* Otherwise, recalculate the summary counters.
*/
- if ((!xfs_has_lazysbcount(mp) ||
- XFS_LAST_UNMOUNT_WAS_CLEAN(mp)) &&
+ if ((!xfs_has_lazysbcount(mp) || xfs_is_clean(mp)) &&
!xfs_fs_has_sickness(mp, XFS_SICK_FS_COUNTERS))
return 0;
xfs_extent_busy_wait_all(mp);
flush_workqueue(xfs_discard_wq);
- mp->m_flags |= XFS_MOUNT_UNMOUNTING;
+ set_bit(XFS_OPSTATE_UNMOUNTING, &mp->m_opstate);
xfs_ail_push_all_sync(mp->m_ail);
xfs_inodegc_stop(mp);
* the next remount into writeable mode. Otherwise we would never
* perform the update e.g. for the root filesystem.
*/
- if (mp->m_update_sb && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (mp->m_update_sb && !xfs_is_readonly(mp)) {
error = xfs_sync_sb(mp, false);
if (error) {
xfs_warn(mp, "failed to write sb changes");
* We use the same quiesce mechanism as the rw->ro remount, as they are
* semantically identical operations.
*/
- if ((mp->m_flags & XFS_MOUNT_RDONLY) && !xfs_has_norecovery(mp))
+ if (xfs_is_readonly(mp) && !xfs_has_norecovery(mp))
xfs_log_clean(mp);
/*
* This may drive us straight to ENOSPC on mount, but that implies
* we were already there on the last unmount. Warn if this occurs.
*/
- if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (!xfs_is_readonly(mp)) {
resblks = xfs_default_resblks(mp);
error = xfs_reserve_blocks(mp, &resblks, NULL);
if (error)
{
ASSERT(level > SB_UNFROZEN);
if ((mp->m_super->s_writers.frozen >= level) ||
- XFS_FORCED_SHUTDOWN(mp) || (mp->m_flags & XFS_MOUNT_RDONLY))
+ XFS_FORCED_SHUTDOWN(mp) || xfs_is_readonly(mp))
return false;
return true;
uint m_rsumsize; /* size of rt summary, bytes */
int m_fixedfsid[2]; /* unchanged for life of FS */
uint m_qflags; /* quota status flags */
- uint64_t m_flags; /* global mount flags */
uint64_t m_features; /* active filesystem features */
uint64_t m_low_space[XFS_LOWSP_MAX];
uint64_t m_low_rtexts[XFS_LOWSP_MAX];
/*
* Mount features
*
- * These do not change dynamically - features that can come and go,
- * such as 32 bit inodes and read-only state, are kept as flags rather than
+ * These do not change dynamically - features that can come and go, such as 32
+ * bit inodes and read-only state, are kept as operational state rather than
* features.
*/
__XFS_HAS_FEAT(noattr2, NOATTR2)
__XFS_HAS_FEAT(nouuid, NOUUID)
/*
- * Flags for m_flags.
+ * Operational mount state flags
+ *
+ * Use these with atomic bit ops only!
*/
-#define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops
- must be synchronous except
- for space allocations */
-#define XFS_MOUNT_UNMOUNTING (1ULL << 1) /* filesystem is unmounting */
-#define XFS_MOUNT_WAS_CLEAN (1ULL << 2)
-#define XFS_MOUNT_FS_SHUTDOWN (1ULL << 3) /* atomic stop of all filesystem
- operations, typically for
- disk errors in metadata */
-#define XFS_MOUNT_32BITINODES (1ULL << 15) /* inode32 allocator active */
-#define XFS_MOUNT_RDONLY (1ULL << 4) /* read-only fs */
+#define XFS_OPSTATE_UNMOUNTING 0 /* filesystem is unmounting */
+#define XFS_OPSTATE_CLEAN 1 /* mount was clean */
+#define XFS_OPSTATE_SHUTDOWN 2 /* stop all fs operations */
+#define XFS_OPSTATE_INODE32 3 /* inode32 allocator active */
+#define XFS_OPSTATE_READONLY 4 /* read-only fs */
/*
* If set, inactivation worker threads will be scheduled to process queued
* inodegc work. If not, queued inodes remain in memory waiting to be
* processed.
*/
-#define XFS_OPSTATE_INODEGC_ENABLED 0
+#define XFS_OPSTATE_INODEGC_ENABLED 5
/*
* If set, background speculative prealloc gc worker threads will be scheduled
* to process queued blockgc work. If not, inodes retain their preallocations
* until explicitly deleted.
*/
-#define XFS_OPSTATE_BLOCKGC_ENABLED 1
+#define XFS_OPSTATE_BLOCKGC_ENABLED 6
#define __XFS_IS_OPSTATE(name, NAME) \
static inline bool xfs_is_ ## name (struct xfs_mount *mp) \
return test_and_set_bit(XFS_OPSTATE_ ## NAME, &mp->m_opstate); \
}
+__XFS_IS_OPSTATE(unmounting, UNMOUNTING)
+__XFS_IS_OPSTATE(clean, CLEAN)
+__XFS_IS_OPSTATE(shutdown, SHUTDOWN)
+__XFS_IS_OPSTATE(inode32, INODE32)
+__XFS_IS_OPSTATE(readonly, READONLY)
__XFS_IS_OPSTATE(inodegc_enabled, INODEGC_ENABLED)
__XFS_IS_OPSTATE(blockgc_enabled, BLOCKGC_ENABLED)
#define XFS_OPSTATE_STRINGS \
+ { (1UL << XFS_OPSTATE_UNMOUNTING), "unmounting" }, \
+ { (1UL << XFS_OPSTATE_CLEAN), "clean" }, \
+ { (1UL << XFS_OPSTATE_SHUTDOWN), "shutdown" }, \
+ { (1UL << XFS_OPSTATE_INODE32), "inode32" }, \
+ { (1UL << XFS_OPSTATE_READONLY), "read_only" }, \
{ (1UL << XFS_OPSTATE_INODEGC_ENABLED), "inodegc" }, \
{ (1UL << XFS_OPSTATE_BLOCKGC_ENABLED), "blockgc" }
#define XFS_MAX_IO_LOG 30 /* 1G */
#define XFS_MIN_IO_LOG PAGE_SHIFT
-#define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \
- ((mp)->m_flags & XFS_MOUNT_WAS_CLEAN)
-#define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
+#define XFS_FORCED_SHUTDOWN(mp) xfs_is_shutdown(mp)
void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
int lnnum);
#define xfs_force_shutdown(m,f) \
*
* Inode allocation patterns are altered only if inode32 is requested
* (XFS_FEAT_SMALL_INUMS), and the filesystem is sufficiently large.
- * If altered, XFS_MOUNT_32BITINODES is set as well.
+ * If altered, XFS_OPSTATE_INODE32 is set as well.
*
* An agcount independent of that in the mount structure is provided
* because in the growfs case, mp->m_sb.sb_agcount is not yet updated
/*
* If user asked for no more than 32-bit inodes, and the fs is
- * sufficiently large, set XFS_MOUNT_32BITINODES if we must alter
+ * sufficiently large, set XFS_OPSTATE_INODE32 if we must alter
* the allocator to accommodate the request.
*/
if (xfs_has_small_inums(mp) && ino > XFS_MAXINUMBER_32)
- mp->m_flags |= XFS_MOUNT_32BITINODES;
+ set_bit(XFS_OPSTATE_INODE32, &mp->m_opstate);
else
- mp->m_flags &= ~XFS_MOUNT_32BITINODES;
+ clear_bit(XFS_OPSTATE_INODE32, &mp->m_opstate);
for (index = 0; index < agcount; index++) {
struct xfs_perag *pag;
pag = xfs_perag_get(mp, index);
- if (mp->m_flags & XFS_MOUNT_32BITINODES) {
+ if (xfs_is_inode32(mp)) {
if (ino > XFS_MAXINUMBER_32) {
pag->pagi_inodeok = 0;
pag->pagf_metadata = 0;
xfs_perag_put(pag);
}
- return (mp->m_flags & XFS_MOUNT_32BITINODES) ? maxagi : agcount;
+ return xfs_is_inode32(mp) ? maxagi : agcount;
}
STATIC int
* here, so we can restart safely without racing with a stop in
* xfs_fs_sync_fs().
*/
- if (ret && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (ret && !xfs_is_readonly(mp)) {
xfs_blockgc_start(mp);
xfs_inodegc_start(mp);
}
* worker because there are no speculative preallocations on a readonly
* filesystem.
*/
- if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (!xfs_is_readonly(mp)) {
xfs_blockgc_start(mp);
xfs_inodegc_start(mp);
}
xfs_finish_flags(
struct xfs_mount *mp)
{
- int ronly = (mp->m_flags & XFS_MOUNT_RDONLY);
-
/* Fail a mount where the logbuf is smaller than the log stripe */
if (xfs_has_logv2(mp)) {
if (mp->m_logbsize <= 0 &&
/*
* prohibit r/w mounts of read-only filesystems
*/
- if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) {
+ if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !xfs_is_readonly(mp)) {
xfs_warn(mp,
"cannot mount a read-only filesystem as read-write");
return -EROFS;
struct xfs_mount *mp)
{
/* No recovery flag requires a read-only mount */
- if (xfs_has_norecovery(mp) && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ if (xfs_has_norecovery(mp) && !xfs_is_readonly(mp)) {
xfs_warn(mp, "no-recovery mounts must be read-only.");
return -EINVAL;
}
return -EINVAL;
}
- mp->m_flags &= ~XFS_MOUNT_RDONLY;
+ clear_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
/*
* If this is the first remount to writeable state we might have some
xfs_save_resvblks(mp);
xfs_log_clean(mp);
- mp->m_flags |= XFS_MOUNT_RDONLY;
+ set_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
return 0;
}
}
/* ro -> rw */
- if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(flags & SB_RDONLY)) {
+ if (xfs_is_readonly(mp) && !(flags & SB_RDONLY)) {
error = xfs_remount_rw(mp);
if (error)
return error;
}
/* rw -> ro */
- if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (flags & SB_RDONLY)) {
+ if (!xfs_is_readonly(mp) && (flags & SB_RDONLY)) {
error = xfs_remount_ro(mp);
if (error)
return error;
* Copy binary VFS mount flags we are interested in.
*/
if (fc->sb_flags & SB_RDONLY)
- mp->m_flags |= XFS_MOUNT_RDONLY;
+ set_bit(XFS_OPSTATE_READONLY, &mp->m_opstate);
if (fc->sb_flags & SB_DIRSYNC)
mp->m_features |= XFS_FEAT_DIRSYNC;
if (fc->sb_flags & SB_SYNCHRONOUS)
TP_fast_assign(
if (mp) {
__entry->dev = mp->m_super->s_dev;
- __entry->mflags = mp->m_flags;
+ __entry->mflags = mp->m_features;
__entry->opstate = mp->m_opstate;
__entry->sbflags = mp->m_super->s_flags;
}
__entry->caller_ip = caller_ip;
),
- TP_printk("dev %d:%d m_flags 0x%llx opstate (%s) s_flags 0x%lx caller %pS",
+ TP_printk("dev %d:%d m_features 0x%llx opstate (%s) s_flags 0x%lx caller %pS",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->mflags,
__print_flags(__entry->opstate, "|", XFS_OPSTATE_STRINGS),
projects / linux.git / commitdiff