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authorYan, Zheng <zheng.yan@oracle.com>2009-11-12 09:33:26 +0000
committerChris Mason <chris.mason@oracle.com>2009-12-15 21:24:25 -0500
commit8cef4e160d74920ad1725f58c89fd75ec4c4ac38 (patch)
treec1592369c7085e75d67a1709438a4f56351b2348 /fs/btrfs/disk-io.c
parent22763c5cf3690a681551162c15d34d935308c8d7 (diff)
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.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 02b6afbd745..101940fab9b 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;