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| author | Yan, Zheng <zheng.yan@oracle.com> | 2009-11-12 09:33:26 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2009-12-15 21:24:25 -0500 |
| commit | 8cef4e160d74920ad1725f58c89fd75ec4c4ac38 (patch) | |
| tree | c1592369c7085e75d67a1709438a4f56351b2348 /fs/btrfs/disk-io.c | |
| parent | 22763c5cf3690a681551162c15d34d935308c8d7 (diff) | |
| download | lwn-8cef4e160d74920ad1725f58c89fd75ec4c4ac38.tar.gz lwn-8cef4e160d74920ad1725f58c89fd75ec4c4ac38.zip | |
Btrfs: Avoid superfluous tree-log writeout
We allow two log transactions at a time, but use same flag
to mark dirty tree-log btree blocks. So we may flush dirty
blocks belonging to newer log transaction when committing a
log transaction. This patch fixes the issue by using two
flags to mark dirty tree-log btree blocks.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
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 | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 02b6afbd7450..101940fab9b3 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -980,12 +980,12 @@ int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, while (1) { ret = find_first_extent_bit(&log_root_tree->dirty_log_pages, - 0, &start, &end, EXTENT_DIRTY); + 0, &start, &end, EXTENT_DIRTY | EXTENT_NEW); if (ret) break; - clear_extent_dirty(&log_root_tree->dirty_log_pages, - start, end, GFP_NOFS); + clear_extent_bits(&log_root_tree->dirty_log_pages, start, end, + EXTENT_DIRTY | EXTENT_NEW, GFP_NOFS); } eb = fs_info->log_root_tree->node; |