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authorChristoph Hellwig <hch@sgi.com>2005-11-02 10:26:59 +1100
committerNathan Scott <nathans@sgi.com>2005-11-02 10:26:59 +1100
commitf538d4da8d521746ca5ebf8c1a8105eb49bfb45e (patch)
tree5516e1d2df01e412709284e379085b348122c501 /fs/xfs/xfs_log.h
parent739cafd316235fc55463849e80710f2ca308b9ae (diff)
downloadop-kernel-dev-f538d4da8d521746ca5ebf8c1a8105eb49bfb45e.zip
op-kernel-dev-f538d4da8d521746ca5ebf8c1a8105eb49bfb45e.tar.gz
[XFS] write barrier support Issue all log sync operations as ordered
writes. In addition flush the disk cache on fsync if the sync cached operation didn't sync the log to disk (this requires some additional bookeping in the transaction and log code). If the device doesn't claim to support barriers, the filesystem has an extern log volume or the trial superblock write with barriers enabled failed we disable barriers and print a warning. We should probably fail the mount completely, but that could lead to nasty boot failures for the root filesystem. Not enabled by default yet, needs more destructive testing first. SGI-PV: 912426 SGI-Modid: xfs-linux:xfs-kern:198723a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_log.h')
-rw-r--r--fs/xfs/xfs_log.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 1896111..dc920f8 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -174,9 +174,12 @@ xfs_lsn_t xfs_log_done(struct xfs_mount *mp,
xfs_log_ticket_t ticket,
void **iclog,
uint flags);
-int xfs_log_force(struct xfs_mount *mp,
- xfs_lsn_t lsn,
- uint flags);
+int _xfs_log_force(struct xfs_mount *mp,
+ xfs_lsn_t lsn,
+ uint flags,
+ int *log_forced);
+#define xfs_log_force(mp, lsn, flags) \
+ _xfs_log_force(mp, lsn, flags, NULL);
int xfs_log_mount(struct xfs_mount *mp,
struct xfs_buftarg *log_target,
xfs_daddr_t start_block,
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