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authorMiao Xie <miaox@cn.fujitsu.com>2012-09-06 04:04:27 -0600
committerChris Mason <chris.mason@fusionio.com>2012-10-01 15:19:12 -0400
commit2ecb79239bcd04c9d410f4cdce16adb6840b19da (patch)
tree9a2194dde73a1a822fa011c35745c3aafa316f86 /fs/btrfs/disk-io.c
parent48c03c4bcfd7a1fcb1e05e9b1db1188cdbecf49a (diff)
Btrfs: fix unprotected ->log_batch
We forget to protect ->log_batch when syncing a file, this patch fix this problem by atomic operation. And ->log_batch is used to check if there are parallel sync operations or not, so it is unnecessary to reset it to 0 after the sync operation of the current log tree complete. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0dcfb998229e..34717ac2416a 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1168,8 +1168,8 @@ static void __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
atomic_set(&root->log_commit[0], 0);
atomic_set(&root->log_commit[1], 0);
atomic_set(&root->log_writers, 0);
+ atomic_set(&root->log_batch, 0);
atomic_set(&root->orphan_inodes, 0);
- root->log_batch = 0;
root->log_transid = 0;
root->last_log_commit = 0;
extent_io_tree_init(&root->dirty_log_pages,