-stable review patch. If anyone has any objections, please let us know.
------------------
[XFS] Check that a page has dirty buffers before finding it acceptable for
rewrite clustering. This prevents writing excessive amounts of clean data
when doing random rewrites of a cached file.
Signed-off-by: David Chinner <[email protected]>
Signed-off-by: Nathan Scott <[email protected]>
Signed-off-by: Chris Wright <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/xfs/linux-2.6/xfs_aops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_aops.c
+++ linux-2.6.16/fs/xfs/linux-2.6/xfs_aops.c
@@ -616,7 +616,7 @@ xfs_is_delayed_page(
acceptable = (type == IOMAP_UNWRITTEN);
else if (buffer_delay(bh))
acceptable = (type == IOMAP_DELAY);
- else if (buffer_mapped(bh))
+ else if (buffer_dirty(bh) && buffer_mapped(bh))
acceptable = (type == 0);
else
break;
--
-
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