Merge branch 'xfs-sb-logging-rework' into for-next
Conflicts:
fs/xfs/xfs_mount.c
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index 5d38e8b..15105db 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -403,7 +403,7 @@
if (!xfs_sb_version_hasattr2(&mp->m_sb)) {
xfs_sb_version_addattr2(&mp->m_sb);
spin_unlock(&mp->m_sb_lock);
- xfs_mod_sb(tp, XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
+ xfs_log_sb(tp);
} else
spin_unlock(&mp->m_sb_lock);
}
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index b5eb474..63a5bb9 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -1221,22 +1221,20 @@
goto bmap_cancel;
if (!xfs_sb_version_hasattr(&mp->m_sb) ||
(!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
- __int64_t sbfields = 0;
+ bool log_sb = false;
spin_lock(&mp->m_sb_lock);
if (!xfs_sb_version_hasattr(&mp->m_sb)) {
xfs_sb_version_addattr(&mp->m_sb);
- sbfields |= XFS_SB_VERSIONNUM;
+ log_sb = true;
}
if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) {
xfs_sb_version_addattr2(&mp->m_sb);
- sbfields |= (XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
+ log_sb = true;
}
- if (sbfields) {
- spin_unlock(&mp->m_sb_lock);
- xfs_mod_sb(tp, sbfields);
- } else
- spin_unlock(&mp->m_sb_lock);
+ spin_unlock(&mp->m_sb_lock);
+ if (log_sb)
+ xfs_log_sb(tp);
}
error = xfs_bmap_finish(&tp, &flist, &committed);
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 4762732..8eb7189 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -151,10 +151,13 @@
__uint32_t sb_features2; /* additional feature bits */
/*
- * bad features2 field as a result of failing to pad the sb
- * structure to 64 bits. Some machines will be using this field
- * for features2 bits. Easiest just to mark it bad and not use
- * it for anything else.
+ * bad features2 field as a result of failing to pad the sb structure to
+ * 64 bits. Some machines will be using this field for features2 bits.
+ * Easiest just to mark it bad and not use it for anything else.
+ *
+ * This is not kept up to date in memory; it is always overwritten by
+ * the value in sb_features2 when formatting the incore superblock to
+ * the disk buffer.
*/
__uint32_t sb_bad_features2;
@@ -453,13 +456,11 @@
{
sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
sbp->sb_features2 |= XFS_SB_VERSION2_ATTR2BIT;
- sbp->sb_bad_features2 |= XFS_SB_VERSION2_ATTR2BIT;
}
static inline void xfs_sb_version_removeattr2(struct xfs_sb *sbp)
{
sbp->sb_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
- sbp->sb_bad_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
if (!sbp->sb_features2)
sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
}
@@ -475,7 +476,6 @@
{
sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
sbp->sb_features2 |= XFS_SB_VERSION2_PROJID32BIT;
- sbp->sb_bad_features2 |= XFS_SB_VERSION2_PROJID32BIT;
}
/*
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index 752915f..b0a5fe9 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -40,69 +40,6 @@
* Physical superblock buffer manipulations. Shared with libxfs in userspace.
*/
-static const struct {
- short offset;
- short type; /* 0 = integer
- * 1 = binary / string (no translation)
- */
-} xfs_sb_info[] = {
- { offsetof(xfs_sb_t, sb_magicnum), 0 },
- { offsetof(xfs_sb_t, sb_blocksize), 0 },
- { offsetof(xfs_sb_t, sb_dblocks), 0 },
- { offsetof(xfs_sb_t, sb_rblocks), 0 },
- { offsetof(xfs_sb_t, sb_rextents), 0 },
- { offsetof(xfs_sb_t, sb_uuid), 1 },
- { offsetof(xfs_sb_t, sb_logstart), 0 },
- { offsetof(xfs_sb_t, sb_rootino), 0 },
- { offsetof(xfs_sb_t, sb_rbmino), 0 },
- { offsetof(xfs_sb_t, sb_rsumino), 0 },
- { offsetof(xfs_sb_t, sb_rextsize), 0 },
- { offsetof(xfs_sb_t, sb_agblocks), 0 },
- { offsetof(xfs_sb_t, sb_agcount), 0 },
- { offsetof(xfs_sb_t, sb_rbmblocks), 0 },
- { offsetof(xfs_sb_t, sb_logblocks), 0 },
- { offsetof(xfs_sb_t, sb_versionnum), 0 },
- { offsetof(xfs_sb_t, sb_sectsize), 0 },
- { offsetof(xfs_sb_t, sb_inodesize), 0 },
- { offsetof(xfs_sb_t, sb_inopblock), 0 },
- { offsetof(xfs_sb_t, sb_fname[0]), 1 },
- { offsetof(xfs_sb_t, sb_blocklog), 0 },
- { offsetof(xfs_sb_t, sb_sectlog), 0 },
- { offsetof(xfs_sb_t, sb_inodelog), 0 },
- { offsetof(xfs_sb_t, sb_inopblog), 0 },
- { offsetof(xfs_sb_t, sb_agblklog), 0 },
- { offsetof(xfs_sb_t, sb_rextslog), 0 },
- { offsetof(xfs_sb_t, sb_inprogress), 0 },
- { offsetof(xfs_sb_t, sb_imax_pct), 0 },
- { offsetof(xfs_sb_t, sb_icount), 0 },
- { offsetof(xfs_sb_t, sb_ifree), 0 },
- { offsetof(xfs_sb_t, sb_fdblocks), 0 },
- { offsetof(xfs_sb_t, sb_frextents), 0 },
- { offsetof(xfs_sb_t, sb_uquotino), 0 },
- { offsetof(xfs_sb_t, sb_gquotino), 0 },
- { offsetof(xfs_sb_t, sb_qflags), 0 },
- { offsetof(xfs_sb_t, sb_flags), 0 },
- { offsetof(xfs_sb_t, sb_shared_vn), 0 },
- { offsetof(xfs_sb_t, sb_inoalignmt), 0 },
- { offsetof(xfs_sb_t, sb_unit), 0 },
- { offsetof(xfs_sb_t, sb_width), 0 },
- { offsetof(xfs_sb_t, sb_dirblklog), 0 },
- { offsetof(xfs_sb_t, sb_logsectlog), 0 },
- { offsetof(xfs_sb_t, sb_logsectsize), 0 },
- { offsetof(xfs_sb_t, sb_logsunit), 0 },
- { offsetof(xfs_sb_t, sb_features2), 0 },
- { offsetof(xfs_sb_t, sb_bad_features2), 0 },
- { offsetof(xfs_sb_t, sb_features_compat), 0 },
- { offsetof(xfs_sb_t, sb_features_ro_compat), 0 },
- { offsetof(xfs_sb_t, sb_features_incompat), 0 },
- { offsetof(xfs_sb_t, sb_features_log_incompat), 0 },
- { offsetof(xfs_sb_t, sb_crc), 0 },
- { offsetof(xfs_sb_t, sb_pad), 0 },
- { offsetof(xfs_sb_t, sb_pquotino), 0 },
- { offsetof(xfs_sb_t, sb_lsn), 0 },
- { sizeof(xfs_sb_t), 0 }
-};
-
/*
* Reference counting access wrappers to the perag structures.
* Because we never free per-ag structures, the only thing we
@@ -461,58 +398,49 @@
__xfs_sb_from_disk(to, from, true);
}
-static inline void
+static void
xfs_sb_quota_to_disk(
- xfs_dsb_t *to,
- xfs_sb_t *from,
- __int64_t *fields)
+ struct xfs_dsb *to,
+ struct xfs_sb *from)
{
__uint16_t qflags = from->sb_qflags;
- /*
- * We need to do these manipilations only if we are working
- * with an older version of on-disk superblock.
- */
- if (xfs_sb_version_has_pquotino(from))
+ to->sb_uquotino = cpu_to_be64(from->sb_uquotino);
+ if (xfs_sb_version_has_pquotino(from)) {
+ to->sb_qflags = cpu_to_be16(from->sb_qflags);
+ to->sb_gquotino = cpu_to_be64(from->sb_gquotino);
+ to->sb_pquotino = cpu_to_be64(from->sb_pquotino);
return;
-
- if (*fields & XFS_SB_QFLAGS) {
- /*
- * The in-core version of sb_qflags do not have
- * XFS_OQUOTA_* flags, whereas the on-disk version
- * does. So, convert incore XFS_{PG}QUOTA_* flags
- * to on-disk XFS_OQUOTA_* flags.
- */
- qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
- XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
-
- if (from->sb_qflags &
- (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD))
- qflags |= XFS_OQUOTA_ENFD;
- if (from->sb_qflags &
- (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))
- qflags |= XFS_OQUOTA_CHKD;
- to->sb_qflags = cpu_to_be16(qflags);
- *fields &= ~XFS_SB_QFLAGS;
}
/*
- * GQUOTINO and PQUOTINO cannot be used together in versions of
- * superblock that do not have pquotino. from->sb_flags tells us which
- * quota is active and should be copied to disk. If neither are active,
- * make sure we write NULLFSINO to the sb_gquotino field as a quota
- * inode value of "0" is invalid when the XFS_SB_VERSION_QUOTA feature
- * bit is set.
- *
- * Note that we don't need to handle the sb_uquotino or sb_pquotino here
- * as they do not require any translation. Hence the main sb field loop
- * will write them appropriately from the in-core superblock.
+ * The in-core version of sb_qflags do not have XFS_OQUOTA_*
+ * flags, whereas the on-disk version does. So, convert incore
+ * XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags.
*/
- if ((*fields & XFS_SB_GQUOTINO) &&
- (from->sb_qflags & XFS_GQUOTA_ACCT))
+ qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
+ XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
+
+ if (from->sb_qflags &
+ (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD))
+ qflags |= XFS_OQUOTA_ENFD;
+ if (from->sb_qflags &
+ (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))
+ qflags |= XFS_OQUOTA_CHKD;
+ to->sb_qflags = cpu_to_be16(qflags);
+
+ /*
+ * GQUOTINO and PQUOTINO cannot be used together in versions
+ * of superblock that do not have pquotino. from->sb_flags
+ * tells us which quota is active and should be copied to
+ * disk. If neither are active, we should NULL the inode.
+ *
+ * In all cases, the separate pquotino must remain 0 because it
+ * it beyond the "end" of the valid non-pquotino superblock.
+ */
+ if (from->sb_qflags & XFS_GQUOTA_ACCT)
to->sb_gquotino = cpu_to_be64(from->sb_gquotino);
- else if ((*fields & XFS_SB_PQUOTINO) &&
- (from->sb_qflags & XFS_PQUOTA_ACCT))
+ else if (from->sb_qflags & XFS_PQUOTA_ACCT)
to->sb_gquotino = cpu_to_be64(from->sb_pquotino);
else {
/*
@@ -526,63 +454,78 @@
to->sb_gquotino = cpu_to_be64(NULLFSINO);
}
- *fields &= ~(XFS_SB_PQUOTINO | XFS_SB_GQUOTINO);
+ to->sb_pquotino = 0;
}
-/*
- * Copy in core superblock to ondisk one.
- *
- * The fields argument is mask of superblock fields to copy.
- */
void
xfs_sb_to_disk(
- xfs_dsb_t *to,
- xfs_sb_t *from,
- __int64_t fields)
+ struct xfs_dsb *to,
+ struct xfs_sb *from)
{
- xfs_caddr_t to_ptr = (xfs_caddr_t)to;
- xfs_caddr_t from_ptr = (xfs_caddr_t)from;
- xfs_sb_field_t f;
- int first;
- int size;
+ xfs_sb_quota_to_disk(to, from);
- ASSERT(fields);
- if (!fields)
- return;
+ to->sb_magicnum = cpu_to_be32(from->sb_magicnum);
+ to->sb_blocksize = cpu_to_be32(from->sb_blocksize);
+ to->sb_dblocks = cpu_to_be64(from->sb_dblocks);
+ to->sb_rblocks = cpu_to_be64(from->sb_rblocks);
+ to->sb_rextents = cpu_to_be64(from->sb_rextents);
+ memcpy(&to->sb_uuid, &from->sb_uuid, sizeof(to->sb_uuid));
+ to->sb_logstart = cpu_to_be64(from->sb_logstart);
+ to->sb_rootino = cpu_to_be64(from->sb_rootino);
+ to->sb_rbmino = cpu_to_be64(from->sb_rbmino);
+ to->sb_rsumino = cpu_to_be64(from->sb_rsumino);
+ to->sb_rextsize = cpu_to_be32(from->sb_rextsize);
+ to->sb_agblocks = cpu_to_be32(from->sb_agblocks);
+ to->sb_agcount = cpu_to_be32(from->sb_agcount);
+ to->sb_rbmblocks = cpu_to_be32(from->sb_rbmblocks);
+ to->sb_logblocks = cpu_to_be32(from->sb_logblocks);
+ to->sb_versionnum = cpu_to_be16(from->sb_versionnum);
+ to->sb_sectsize = cpu_to_be16(from->sb_sectsize);
+ to->sb_inodesize = cpu_to_be16(from->sb_inodesize);
+ to->sb_inopblock = cpu_to_be16(from->sb_inopblock);
+ memcpy(&to->sb_fname, &from->sb_fname, sizeof(to->sb_fname));
+ to->sb_blocklog = from->sb_blocklog;
+ to->sb_sectlog = from->sb_sectlog;
+ to->sb_inodelog = from->sb_inodelog;
+ to->sb_inopblog = from->sb_inopblog;
+ to->sb_agblklog = from->sb_agblklog;
+ to->sb_rextslog = from->sb_rextslog;
+ to->sb_inprogress = from->sb_inprogress;
+ to->sb_imax_pct = from->sb_imax_pct;
+ to->sb_icount = cpu_to_be64(from->sb_icount);
+ to->sb_ifree = cpu_to_be64(from->sb_ifree);
+ to->sb_fdblocks = cpu_to_be64(from->sb_fdblocks);
+ to->sb_frextents = cpu_to_be64(from->sb_frextents);
- /* We should never write the crc here, it's updated in the IO path */
- fields &= ~XFS_SB_CRC;
+ to->sb_flags = from->sb_flags;
+ to->sb_shared_vn = from->sb_shared_vn;
+ to->sb_inoalignmt = cpu_to_be32(from->sb_inoalignmt);
+ to->sb_unit = cpu_to_be32(from->sb_unit);
+ to->sb_width = cpu_to_be32(from->sb_width);
+ to->sb_dirblklog = from->sb_dirblklog;
+ to->sb_logsectlog = from->sb_logsectlog;
+ to->sb_logsectsize = cpu_to_be16(from->sb_logsectsize);
+ to->sb_logsunit = cpu_to_be32(from->sb_logsunit);
- xfs_sb_quota_to_disk(to, from, &fields);
- while (fields) {
- f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
- first = xfs_sb_info[f].offset;
- size = xfs_sb_info[f + 1].offset - first;
+ /*
+ * We need to ensure that bad_features2 always matches features2.
+ * Hence we enforce that here rather than having to remember to do it
+ * everywhere else that updates features2.
+ */
+ from->sb_bad_features2 = from->sb_features2;
+ to->sb_features2 = cpu_to_be32(from->sb_features2);
+ to->sb_bad_features2 = cpu_to_be32(from->sb_bad_features2);
- ASSERT(xfs_sb_info[f].type == 0 || xfs_sb_info[f].type == 1);
-
- if (size == 1 || xfs_sb_info[f].type == 1) {
- memcpy(to_ptr + first, from_ptr + first, size);
- } else {
- switch (size) {
- case 2:
- *(__be16 *)(to_ptr + first) =
- cpu_to_be16(*(__u16 *)(from_ptr + first));
- break;
- case 4:
- *(__be32 *)(to_ptr + first) =
- cpu_to_be32(*(__u32 *)(from_ptr + first));
- break;
- case 8:
- *(__be64 *)(to_ptr + first) =
- cpu_to_be64(*(__u64 *)(from_ptr + first));
- break;
- default:
- ASSERT(0);
- }
- }
-
- fields &= ~(1LL << f);
+ if (xfs_sb_version_hascrc(from)) {
+ to->sb_features_compat = cpu_to_be32(from->sb_features_compat);
+ to->sb_features_ro_compat =
+ cpu_to_be32(from->sb_features_ro_compat);
+ to->sb_features_incompat =
+ cpu_to_be32(from->sb_features_incompat);
+ to->sb_features_log_incompat =
+ cpu_to_be32(from->sb_features_log_incompat);
+ to->sb_pad = 0;
+ to->sb_lsn = cpu_to_be64(from->sb_lsn);
}
}
@@ -816,42 +759,51 @@
}
/*
- * xfs_mod_sb() can be used to copy arbitrary changes to the
- * in-core superblock into the superblock buffer to be logged.
- * It does not provide the higher level of locking that is
- * needed to protect the in-core superblock from concurrent
- * access.
+ * xfs_log_sb() can be used to copy arbitrary changes to the in-core superblock
+ * into the superblock buffer to be logged. It does not provide the higher
+ * level of locking that is needed to protect the in-core superblock from
+ * concurrent access.
*/
void
-xfs_mod_sb(xfs_trans_t *tp, __int64_t fields)
+xfs_log_sb(
+ struct xfs_trans *tp)
{
- xfs_buf_t *bp;
- int first;
- int last;
- xfs_mount_t *mp;
- xfs_sb_field_t f;
+ struct xfs_mount *mp = tp->t_mountp;
+ struct xfs_buf *bp = xfs_trans_getsb(tp, mp, 0);
- ASSERT(fields);
- if (!fields)
- return;
- mp = tp->t_mountp;
- bp = xfs_trans_getsb(tp, mp, 0);
- first = sizeof(xfs_sb_t);
- last = 0;
-
- /* translate/copy */
-
- xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, fields);
-
- /* find modified range */
- f = (xfs_sb_field_t)xfs_highbit64((__uint64_t)fields);
- ASSERT((1LL << f) & XFS_SB_MOD_BITS);
- last = xfs_sb_info[f + 1].offset - 1;
-
- f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
- ASSERT((1LL << f) & XFS_SB_MOD_BITS);
- first = xfs_sb_info[f].offset;
-
+ xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF);
- xfs_trans_log_buf(tp, bp, first, last);
+ xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb));
+}
+
+/*
+ * xfs_sync_sb
+ *
+ * Sync the superblock to disk.
+ *
+ * Note that the caller is responsible for checking the frozen state of the
+ * filesystem. This procedure uses the non-blocking transaction allocator and
+ * thus will allow modifications to a frozen fs. This is required because this
+ * code can be called during the process of freezing where use of the high-level
+ * allocator would deadlock.
+ */
+int
+xfs_sync_sb(
+ struct xfs_mount *mp,
+ bool wait)
+{
+ struct xfs_trans *tp;
+ int error;
+
+ tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP);
+ error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0);
+ if (error) {
+ xfs_trans_cancel(tp, 0);
+ return error;
+ }
+
+ xfs_log_sb(tp);
+ if (wait)
+ xfs_trans_set_sync(tp);
+ return xfs_trans_commit(tp, 0);
}
diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h
index 8eb1c54..b25bb9a 100644
--- a/fs/xfs/libxfs/xfs_sb.h
+++ b/fs/xfs/libxfs/xfs_sb.h
@@ -27,11 +27,12 @@
extern void xfs_perag_put(struct xfs_perag *pag);
extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t);
-extern void xfs_sb_calc_crc(struct xfs_buf *);
-extern void xfs_mod_sb(struct xfs_trans *, __int64_t);
-extern void xfs_sb_mount_common(struct xfs_mount *, struct xfs_sb *);
-extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *);
-extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t);
+extern void xfs_sb_calc_crc(struct xfs_buf *bp);
+extern void xfs_log_sb(struct xfs_trans *tp);
+extern int xfs_sync_sb(struct xfs_mount *mp, bool wait);
+extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp);
+extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from);
+extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from);
extern void xfs_sb_quota_from_disk(struct xfs_sb *sbp);
#endif /* __XFS_SB_H__ */
diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h
index 82404da..8dda4b3 100644
--- a/fs/xfs/libxfs/xfs_shared.h
+++ b/fs/xfs/libxfs/xfs_shared.h
@@ -82,7 +82,7 @@
#define XFS_TRANS_ATTR_RM 23
#define XFS_TRANS_ATTR_FLAG 24
#define XFS_TRANS_CLEAR_AGI_BUCKET 25
-#define XFS_TRANS_QM_SBCHANGE 26
+#define XFS_TRANS_SB_CHANGE 26
/*
* Dummy entries since we use the transaction type to index into the
* trans_type[] in xlog_recover_print_trans_head()
@@ -95,17 +95,15 @@
#define XFS_TRANS_QM_DQCLUSTER 32
#define XFS_TRANS_QM_QINOCREATE 33
#define XFS_TRANS_QM_QUOTAOFF_END 34
-#define XFS_TRANS_SB_UNIT 35
-#define XFS_TRANS_FSYNC_TS 36
-#define XFS_TRANS_GROWFSRT_ALLOC 37
-#define XFS_TRANS_GROWFSRT_ZERO 38
-#define XFS_TRANS_GROWFSRT_FREE 39
-#define XFS_TRANS_SWAPEXT 40
-#define XFS_TRANS_SB_COUNT 41
-#define XFS_TRANS_CHECKPOINT 42
-#define XFS_TRANS_ICREATE 43
-#define XFS_TRANS_CREATE_TMPFILE 44
-#define XFS_TRANS_TYPE_MAX 44
+#define XFS_TRANS_FSYNC_TS 35
+#define XFS_TRANS_GROWFSRT_ALLOC 36
+#define XFS_TRANS_GROWFSRT_ZERO 37
+#define XFS_TRANS_GROWFSRT_FREE 38
+#define XFS_TRANS_SWAPEXT 39
+#define XFS_TRANS_CHECKPOINT 40
+#define XFS_TRANS_ICREATE 41
+#define XFS_TRANS_CREATE_TMPFILE 42
+#define XFS_TRANS_TYPE_MAX 43
/* new transaction types need to be reflected in xfs_logprint(8) */
#define XFS_TRANS_TYPES \
@@ -113,7 +111,6 @@
{ XFS_TRANS_SETATTR_SIZE, "SETATTR_SIZE" }, \
{ XFS_TRANS_INACTIVE, "INACTIVE" }, \
{ XFS_TRANS_CREATE, "CREATE" }, \
- { XFS_TRANS_CREATE_TMPFILE, "CREATE_TMPFILE" }, \
{ XFS_TRANS_CREATE_TRUNC, "CREATE_TRUNC" }, \
{ XFS_TRANS_TRUNCATE_FILE, "TRUNCATE_FILE" }, \
{ XFS_TRANS_REMOVE, "REMOVE" }, \
@@ -134,23 +131,23 @@
{ XFS_TRANS_ATTR_RM, "ATTR_RM" }, \
{ XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \
{ XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \
- { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \
+ { XFS_TRANS_SB_CHANGE, "SBCHANGE" }, \
+ { XFS_TRANS_DUMMY1, "DUMMY1" }, \
+ { XFS_TRANS_DUMMY2, "DUMMY2" }, \
{ XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \
{ XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \
{ XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \
{ XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \
{ XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \
{ XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \
- { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \
{ XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \
{ XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \
{ XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \
{ XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \
{ XFS_TRANS_SWAPEXT, "SWAPEXT" }, \
- { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \
{ XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \
- { XFS_TRANS_DUMMY1, "DUMMY1" }, \
- { XFS_TRANS_DUMMY2, "DUMMY2" }, \
+ { XFS_TRANS_ICREATE, "ICREATE" }, \
+ { XFS_TRANS_CREATE_TMPFILE, "CREATE_TMPFILE" }, \
{ XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" }
/*
diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c
index 6c1330f..68cb1e7 100644
--- a/fs/xfs/libxfs/xfs_trans_resv.c
+++ b/fs/xfs/libxfs/xfs_trans_resv.c
@@ -716,17 +716,6 @@
}
/*
- * Clearing the quotaflags in the superblock.
- * the super block for changing quota flags: sector size
- */
-STATIC uint
-xfs_calc_qm_sbchange_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
-}
-
-/*
* Adjusting quota limits.
* the xfs_disk_dquot_t: sizeof(struct xfs_disk_dquot)
*/
@@ -864,9 +853,6 @@
* The following transactions are logged in logical format with
* a default log count.
*/
- resp->tr_qm_sbchange.tr_logres = xfs_calc_qm_sbchange_reservation(mp);
- resp->tr_qm_sbchange.tr_logcount = XFS_DEFAULT_LOG_COUNT;
-
resp->tr_qm_setqlim.tr_logres = xfs_calc_qm_setqlim_reservation(mp);
resp->tr_qm_setqlim.tr_logcount = XFS_DEFAULT_LOG_COUNT;
diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h
index 1097d14..2d5bdfc 100644
--- a/fs/xfs/libxfs/xfs_trans_resv.h
+++ b/fs/xfs/libxfs/xfs_trans_resv.h
@@ -56,7 +56,6 @@
struct xfs_trans_res tr_growrtalloc; /* grow realtime allocations */
struct xfs_trans_res tr_growrtzero; /* grow realtime zeroing */
struct xfs_trans_res tr_growrtfree; /* grow realtime freeing */
- struct xfs_trans_res tr_qm_sbchange; /* change quota flags */
struct xfs_trans_res tr_qm_setqlim; /* adjust quota limits */
struct xfs_trans_res tr_qm_dqalloc; /* allocate quota on disk */
struct xfs_trans_res tr_qm_quotaoff; /* turn quota off */
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index fdc6422..f711452 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -541,7 +541,7 @@
saved_error = error;
continue;
}
- xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS);
+ xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
error = xfs_bwrite(bp);
xfs_buf_relse(bp);
@@ -756,37 +756,6 @@
return 0;
}
-/*
- * Dump a transaction into the log that contains no real change. This is needed
- * to be able to make the log dirty or stamp the current tail LSN into the log
- * during the covering operation.
- *
- * We cannot use an inode here for this - that will push dirty state back up
- * into the VFS and then periodic inode flushing will prevent log covering from
- * making progress. Hence we log a field in the superblock instead and use a
- * synchronous transaction to ensure the superblock is immediately unpinned
- * and can be written back.
- */
-int
-xfs_fs_log_dummy(
- xfs_mount_t *mp)
-{
- xfs_trans_t *tp;
- int error;
-
- tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- return error;
- }
-
- /* log the UUID because it is an unchanging field */
- xfs_mod_sb(tp, XFS_SB_UUID);
- xfs_trans_set_sync(tp);
- return xfs_trans_commit(tp, 0);
-}
-
int
xfs_fs_goingdown(
xfs_mount_t *mp,
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 8fbbfb2..bcc7cfa 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -33,6 +33,7 @@
#include "xfs_fsops.h"
#include "xfs_cksum.h"
#include "xfs_sysfs.h"
+#include "xfs_sb.h"
kmem_zone_t *xfs_log_ticket_zone;
@@ -1290,9 +1291,20 @@
struct xfs_mount *mp = log->l_mp;
/* dgc: errors ignored - not fatal and nowhere to report them */
- if (xfs_log_need_covered(mp))
- xfs_fs_log_dummy(mp);
- else
+ if (xfs_log_need_covered(mp)) {
+ /*
+ * Dump a transaction into the log that contains no real change.
+ * This is needed to stamp the current tail LSN into the log
+ * during the covering operation.
+ *
+ * We cannot use an inode here for this - that will push dirty
+ * state back up into the VFS and then periodic inode flushing
+ * will prevent log covering from making progress. Hence we
+ * synchronously log the superblock instead to ensure the
+ * superblock is immediately unpinned and can be written back.
+ */
+ xfs_sync_sb(mp, true);
+ } else
xfs_log_force(mp, 0);
/* start pushing all the metadata that is currently dirty */
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 71d2c97..4fa80e6 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -408,11 +408,11 @@
if (xfs_sb_version_hasdalign(sbp)) {
if (sbp->sb_unit != mp->m_dalign) {
sbp->sb_unit = mp->m_dalign;
- mp->m_update_flags |= XFS_SB_UNIT;
+ mp->m_update_sb = true;
}
if (sbp->sb_width != mp->m_swidth) {
sbp->sb_width = mp->m_swidth;
- mp->m_update_flags |= XFS_SB_WIDTH;
+ mp->m_update_sb = true;
}
} else {
xfs_warn(mp,
@@ -583,38 +583,19 @@
xfs_mount_reset_sbqflags(
struct xfs_mount *mp)
{
- int error;
- struct xfs_trans *tp;
-
mp->m_qflags = 0;
- /*
- * It is OK to look at sb_qflags here in mount path,
- * without m_sb_lock.
- */
+ /* It is OK to look at sb_qflags in the mount path without m_sb_lock. */
if (mp->m_sb.sb_qflags == 0)
return 0;
spin_lock(&mp->m_sb_lock);
mp->m_sb.sb_qflags = 0;
spin_unlock(&mp->m_sb_lock);
- /*
- * If the fs is readonly, let the incore superblock run
- * with quotas off but don't flush the update out to disk
- */
- if (mp->m_flags & XFS_MOUNT_RDONLY)
+ if (!xfs_fs_writable(mp, SB_FREEZE_WRITE))
return 0;
- tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- xfs_alert(mp, "%s: Superblock update failed!", __func__);
- return error;
- }
-
- xfs_mod_sb(tp, XFS_SB_QFLAGS);
- return xfs_trans_commit(tp, 0);
+ return xfs_sync_sb(mp, false);
}
__uint64_t
@@ -659,26 +640,25 @@
xfs_sb_mount_common(mp, sbp);
/*
- * Check for a mismatched features2 values. Older kernels
- * read & wrote into the wrong sb offset for sb_features2
- * on some platforms due to xfs_sb_t not being 64bit size aligned
- * when sb_features2 was added, which made older superblock
- * reading/writing routines swap it as a 64-bit value.
+ * Check for a mismatched features2 values. Older kernels read & wrote
+ * into the wrong sb offset for sb_features2 on some platforms due to
+ * xfs_sb_t not being 64bit size aligned when sb_features2 was added,
+ * which made older superblock reading/writing routines swap it as a
+ * 64-bit value.
*
* For backwards compatibility, we make both slots equal.
*
- * If we detect a mismatched field, we OR the set bits into the
- * existing features2 field in case it has already been modified; we
- * don't want to lose any features. We then update the bad location
- * with the ORed value so that older kernels will see any features2
- * flags, and mark the two fields as needing updates once the
- * transaction subsystem is online.
+ * If we detect a mismatched field, we OR the set bits into the existing
+ * features2 field in case it has already been modified; we don't want
+ * to lose any features. We then update the bad location with the ORed
+ * value so that older kernels will see any features2 flags. The
+ * superblock writeback code ensures the new sb_features2 is copied to
+ * sb_bad_features2 before it is logged or written to disk.
*/
if (xfs_sb_has_mismatched_features2(sbp)) {
xfs_warn(mp, "correcting sb_features alignment problem");
sbp->sb_features2 |= sbp->sb_bad_features2;
- sbp->sb_bad_features2 = sbp->sb_features2;
- mp->m_update_flags |= XFS_SB_FEATURES2;
+ mp->m_update_sb = true;
/*
* Re-check for ATTR2 in case it was found in bad_features2
@@ -692,17 +672,17 @@
if (xfs_sb_version_hasattr2(&mp->m_sb) &&
(mp->m_flags & XFS_MOUNT_NOATTR2)) {
xfs_sb_version_removeattr2(&mp->m_sb);
- mp->m_update_flags |= XFS_SB_FEATURES2;
+ mp->m_update_sb = true;
/* update sb_versionnum for the clearing of the morebits */
if (!sbp->sb_features2)
- mp->m_update_flags |= XFS_SB_VERSIONNUM;
+ mp->m_update_sb = true;
}
/* always use v2 inodes by default now */
if (!(mp->m_sb.sb_versionnum & XFS_SB_VERSION_NLINKBIT)) {
mp->m_sb.sb_versionnum |= XFS_SB_VERSION_NLINKBIT;
- mp->m_update_flags |= XFS_SB_VERSIONNUM;
+ mp->m_update_sb = true;
}
/*
@@ -895,8 +875,8 @@
* the next remount into writeable mode. Otherwise we would never
* perform the update e.g. for the root filesystem.
*/
- if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
- error = xfs_mount_log_sb(mp, mp->m_update_flags);
+ if (mp->m_update_sb && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ error = xfs_sync_sb(mp, false);
if (error) {
xfs_warn(mp, "failed to write sb changes");
goto out_rtunmount;
@@ -1103,9 +1083,6 @@
int
xfs_log_sbcount(xfs_mount_t *mp)
{
- xfs_trans_t *tp;
- int error;
-
/* allow this to proceed during the freeze sequence... */
if (!xfs_fs_writable(mp, SB_FREEZE_COMPLETE))
return 0;
@@ -1119,17 +1096,7 @@
if (!xfs_sb_version_haslazysbcount(&mp->m_sb))
return 0;
- tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_COUNT, KM_SLEEP);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- return error;
- }
-
- xfs_mod_sb(tp, XFS_SB_IFREE | XFS_SB_ICOUNT | XFS_SB_FDBLOCKS);
- xfs_trans_set_sync(tp);
- error = xfs_trans_commit(tp, 0);
- return error;
+ return xfs_sync_sb(mp, true);
}
/*
@@ -1423,33 +1390,6 @@
}
/*
- * Used to log changes to the superblock unit and width fields which could
- * be altered by the mount options, as well as any potential sb_features2
- * fixup. Only the first superblock is updated.
- */
-int
-xfs_mount_log_sb(
- xfs_mount_t *mp,
- __int64_t fields)
-{
- xfs_trans_t *tp;
- int error;
-
- ASSERT(fields & (XFS_SB_UNIT | XFS_SB_WIDTH | XFS_SB_UUID |
- XFS_SB_FEATURES2 | XFS_SB_VERSIONNUM));
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- return error;
- }
- xfs_mod_sb(tp, fields);
- error = xfs_trans_commit(tp, 0);
- return error;
-}
-
-/*
* If the underlying (data/log/rt) device is readonly, there are some
* operations that cannot proceed.
*/
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 22ccf69..a5b2ff8 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -162,8 +162,7 @@
struct delayed_work m_reclaim_work; /* background inode reclaim */
struct delayed_work m_eofblocks_work; /* background eof blocks
trimming */
- __int64_t m_update_flags; /* sb flags we need to update
- on the next remount,rw */
+ bool m_update_sb; /* sb needs update in mount */
int64_t m_low_space[XFS_LOWSP_MAX];
/* low free space thresholds */
struct xfs_kobj m_kobj;
@@ -378,7 +377,7 @@
extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
uint, int);
-extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t);
+extern int xfs_mount_log_sb(xfs_mount_t *);
extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
extern int xfs_readsb(xfs_mount_t *, int);
extern void xfs_freesb(xfs_mount_t *);
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 79fb19d..3e81862 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -714,7 +714,6 @@
xfs_qm_qino_alloc(
xfs_mount_t *mp,
xfs_inode_t **ip,
- __int64_t sbfields,
uint flags)
{
xfs_trans_t *tp;
@@ -777,11 +776,6 @@
spin_lock(&mp->m_sb_lock);
if (flags & XFS_QMOPT_SBVERSION) {
ASSERT(!xfs_sb_version_hasquota(&mp->m_sb));
- ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
- XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) ==
- (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
- XFS_SB_GQUOTINO | XFS_SB_PQUOTINO |
- XFS_SB_QFLAGS));
xfs_sb_version_addquota(&mp->m_sb);
mp->m_sb.sb_uquotino = NULLFSINO;
@@ -798,7 +792,7 @@
else
mp->m_sb.sb_pquotino = (*ip)->i_ino;
spin_unlock(&mp->m_sb_lock);
- xfs_mod_sb(tp, sbfields);
+ xfs_log_sb(tp);
if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) {
xfs_alert(mp, "%s failed (error %d)!", __func__, error);
@@ -1451,7 +1445,7 @@
spin_unlock(&mp->m_sb_lock);
if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) {
- if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) {
+ if (xfs_sync_sb(mp, false)) {
/*
* We could only have been turning quotas off.
* We aren't in very good shape actually because
@@ -1482,7 +1476,6 @@
struct xfs_inode *gip = NULL;
struct xfs_inode *pip = NULL;
int error;
- __int64_t sbflags = 0;
uint flags = 0;
ASSERT(mp->m_quotainfo);
@@ -1517,9 +1510,6 @@
}
} else {
flags |= XFS_QMOPT_SBVERSION;
- sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
- XFS_SB_GQUOTINO | XFS_SB_PQUOTINO |
- XFS_SB_QFLAGS);
}
/*
@@ -1530,7 +1520,6 @@
*/
if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) {
error = xfs_qm_qino_alloc(mp, &uip,
- sbflags | XFS_SB_UQUOTINO,
flags | XFS_QMOPT_UQUOTA);
if (error)
goto error_rele;
@@ -1539,7 +1528,6 @@
}
if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) {
error = xfs_qm_qino_alloc(mp, &gip,
- sbflags | XFS_SB_GQUOTINO,
flags | XFS_QMOPT_GQUOTA);
if (error)
goto error_rele;
@@ -1548,7 +1536,6 @@
}
if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) {
error = xfs_qm_qino_alloc(mp, &pip,
- sbflags | XFS_SB_PQUOTINO,
flags | XFS_QMOPT_PQUOTA);
if (error)
goto error_rele;
@@ -1587,32 +1574,6 @@
xfs_qm_dqdestroy(dqp);
}
-/*
- * Start a transaction and write the incore superblock changes to
- * disk. flags parameter indicates which fields have changed.
- */
-int
-xfs_qm_write_sb_changes(
- xfs_mount_t *mp,
- __int64_t flags)
-{
- xfs_trans_t *tp;
- int error;
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
- error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- return error;
- }
-
- xfs_mod_sb(tp, flags);
- error = xfs_trans_commit(tp, 0);
-
- return error;
-}
-
-
/* --------------- utility functions for vnodeops ---------------- */
diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 3a07a93..d6e4d88 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -157,7 +157,6 @@
#define XFS_QM_RTBWARNLIMIT 5
extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
-extern int xfs_qm_write_sb_changes(struct xfs_mount *, __int64_t);
/* dquot stuff */
extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint);
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 74fca68..b8a565e 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -92,8 +92,7 @@
mutex_unlock(&q->qi_quotaofflock);
/* XXX what to do if error ? Revert back to old vals incore ? */
- error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS);
- return error;
+ return xfs_sync_sb(mp, false);
}
dqtype = 0;
@@ -314,7 +313,6 @@
{
int error;
uint qf;
- __int64_t sbflags;
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
/*
@@ -322,8 +320,6 @@
*/
flags &= ~(XFS_ALL_QUOTA_ACCT);
- sbflags = 0;
-
if (flags == 0) {
xfs_debug(mp, "%s: zero flags, m_qflags=%x",
__func__, mp->m_qflags);
@@ -370,11 +366,11 @@
/*
* There's nothing to change if it's the same.
*/
- if ((qf & flags) == flags && sbflags == 0)
+ if ((qf & flags) == flags)
return -EEXIST;
- sbflags |= XFS_SB_QFLAGS;
- if ((error = xfs_qm_write_sb_changes(mp, sbflags)))
+ error = xfs_sync_sb(mp, false);
+ if (error)
return error;
/*
* If we aren't trying to switch on quota enforcement, we are done.
@@ -801,7 +797,7 @@
mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
spin_unlock(&mp->m_sb_lock);
- xfs_mod_sb(tp, XFS_SB_QFLAGS);
+ xfs_log_sb(tp);
/*
* We have to make sure that the transaction is secure on disk before we
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 22e6aca..5ce76d0 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1257,13 +1257,13 @@
* If this is the first remount to writeable state we
* might have some superblock changes to update.
*/
- if (mp->m_update_flags) {
- error = xfs_mount_log_sb(mp, mp->m_update_flags);
+ if (mp->m_update_sb) {
+ error = xfs_sync_sb(mp, false);
if (error) {
xfs_warn(mp, "failed to write sb changes");
return error;
}
- mp->m_update_flags = 0;
+ mp->m_update_sb = false;
}
/*
@@ -1293,8 +1293,9 @@
/*
* Second stage of a freeze. The data is already frozen so we only
- * need to take care of the metadata. Once that's done write a dummy
- * record to dirty the log in case of a crash while frozen.
+ * need to take care of the metadata. Once that's done sync the superblock
+ * to the log to dirty it in case of a crash while frozen. This ensures that we
+ * will recover the unlinked inode lists on the next mount.
*/
STATIC int
xfs_fs_freeze(
@@ -1304,7 +1305,7 @@
xfs_save_resvblks(mp);
xfs_quiesce_attr(mp);
- return xfs_fs_log_dummy(mp);
+ return xfs_sync_sb(mp, true);
}
STATIC int
