From 2ecb79239bcd04c9d410f4cdce16adb6840b19da Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Thu, 6 Sep 2012 04:04:27 -0600 Subject: 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 --- fs/btrfs/disk-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/btrfs/disk-io.c') 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, -- cgit v1.2.3