xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Btrfs: Avoid superfluous tree-log writeout

Browse Source 
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>
This commit is contained in:
Yan, Zheng
2009-11-12 09:33:26 +00:00
committed by Chris Mason
parent 22763c5cf3
commit 8cef4e160d
5 changed files with 47 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
fs/btrfs/disk-io.c
View File

@@ -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;