[XFS] Re-initialize the per-cpu superblock counters after recovery.

After filesystem recovery the superblock is re-read to bring in any
changes. If the per-cpu superblock counters are not re-initialized from
the superblock then the next time the per-cpu counters are disabled they
might overwrite the global counter with a bogus value.

SGI-PV: 957348
SGI-Modid: xfs-linux-melb:xfs-kern:27999a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index eb94b977f84c..82304b94646d 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -307,10 +307,12 @@ typedef struct xfs_icsb_cnts {
 #define XFS_ICSB_LAZY_COUNT     (1 << 1)        /* accuracy not needed */
 
 extern int      xfs_icsb_init_counters(struct xfs_mount *);
+extern void     xfs_icsb_reinit_counters(struct xfs_mount *);
 extern void     xfs_icsb_sync_counters_flags(struct xfs_mount *, int);
 
 #else
 #define xfs_icsb_init_counters(mp)      (0)
+#define xfs_icsb_reinit_counters(mp)    do { } while (0)
 #define xfs_icsb_sync_counters_flags(mp, flags) do { } while (0)
 #endif