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| author | Chris Mason <chris.mason@oracle.com> | 2007-11-27 07:52:01 -0800 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:58 -0400 |
| commit | 448d640b668dae3928591e83f2bf4ca9f4c06e52 (patch) | |
| tree | e2cb5deb84444257ad6ed4412a9ec8469df8e935 /fs/btrfs/disk-io.c | |
| parent | 8790bad7fb5ac4929dcd52c5dd8d6b81f8c05be8 (diff) | |
| download | lwn-448d640b668dae3928591e83f2bf4ca9f4c06e52.tar.gz lwn-448d640b668dae3928591e83f2bf4ca9f4c06e52.zip | |
Btrfs: Fine tune the btree writeback exclusion some more
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 8a74f9027d65..de0552532d23 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -214,6 +214,10 @@ static int btree_writepages(struct address_space *mapping, u64 num_dirty; u64 start = 0; unsigned long thresh = 96 * 1024 * 1024; + + if (wbc->for_kupdate) + return 0; + num_dirty = count_range_bits(tree, &start, thresh, EXTENT_DIRTY); if (num_dirty < thresh) { return 0; |