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authorChris Mason <chris.mason@oracle.com>2008-11-20 10:46:35 -0500
committerChris Mason <chris.mason@oracle.com>2008-11-20 10:46:35 -0500
commit0e6bd956ed238eb2f69386f251847fe3163532e1 (patch)
tree72b99621e0d4f187aca1214b0a5faa9a71768efd /fs/btrfs/extent_io.c
parent43dd729b862f4a053310f75d3ee559b678772f59 (diff)
downloadlinux-0e6bd956ed238eb2f69386f251847fe3163532e1.tar.bz2
Btrfs: only flush down bios for writeback pages
The btrfs write_cache_pages call has a flush function so that it submits the bio it has been building before it waits on any writeback pages. This adds a check so that flush only happens on writeback pages. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent_io.c')
-rw-r--r--fs/btrfs/extent_io.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 3a65c10dce33..87dba8517935 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2462,7 +2462,8 @@ retry:
}
if (wbc->sync_mode != WB_SYNC_NONE) {
- flush_fn(data);
+ if (PageWriteback(page))
+ flush_fn(data);
wait_on_page_writeback(page);
}