The patch titled
xfs: remove useless wmb() memory barrier
has been added to the -mm tree. Its filename is
xfs-remove-useless-wmb-memory-barrier.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: xfs: remove useless wmb() memory barrier
From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
wake_up's implementation does an implicit memory barrier and I think that's
the only sane semantics as the caller shouldn't have to worry. So this
write memory barrier is useless.
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: David Chinner <dgc@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/xfs/linux-2.6/xfs_super.c | 1 -
1 file changed, 1 deletion(-)
diff -puN fs/xfs/linux-2.6/xfs_super.c~xfs-remove-useless-wmb-memory-barrier fs/xfs/linux-2.6/xfs_super.c
--- a/fs/xfs/linux-2.6/xfs_super.c~xfs-remove-useless-wmb-memory-barrier
+++ a/fs/xfs/linux-2.6/xfs_super.c
@@ -553,7 +553,6 @@ vfs_sync_worker(
error = bhv_vfs_sync(vfsp, SYNC_FSDATA | SYNC_BDFLUSH | \
SYNC_ATTR | SYNC_REFCACHE, NULL);
vfsp->vfs_sync_seq++;
- wmb();
wake_up(&vfsp->vfs_wait_single_sync_task);
}
_
Patches currently in -mm which might be from ralf@xxxxxxxxxxxxxx are
origin.patch
sysctl-remove-unused-context-param.patch
dont-build-some-broken-isdn-drivers-on-big-endian-mips.patch
mips-dbg_io-stray-brackets-fix.patch
git-mtd.patch
git-net.patch
fix-pnx8550-serial-breakage.patch
pnx8550-uart-driver.patch
pci-legacy-resource-fix.patch
pci-legacy-resource-fix-tidy.patch
xfs-remove-useless-wmb-memory-barrier.patch
tty-remove-useless-memory-barrier.patch
getting-rid-of-all-casts-of-kalloc-calls.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
