-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 Signed-off-by: Nathan Scott Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman --- 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; --