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| author | Miao Xie | 2012-09-06 12:04:27 +0200 |
|---|---|---|
| committer | Chris Mason | 2012-10-01 21:19:12 +0200 |
| commit | 2ecb79239bcd04c9d410f4cdce16adb6840b19da (patch) | |
| tree | 9a2194dde73a1a822fa011c35745c3aafa316f86 /fs/btrfs/ctree.h | |
| parent | Btrfs: fix wrong size for the reservation of the, snapshot creation (diff) | |
| download | kernel-qcow2-linux-2ecb79239bcd04c9d410f4cdce16adb6840b19da.tar.gz kernel-qcow2-linux-2ecb79239bcd04c9d410f4cdce16adb6840b19da.tar.xz kernel-qcow2-linux-2ecb79239bcd04c9d410f4cdce16adb6840b19da.zip | |
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/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 2990a7ea6248..6923b9e4f90d 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1491,9 +1491,9 @@ struct btrfs_root { wait_queue_head_t log_commit_wait[2]; atomic_t log_writers; atomic_t log_commit[2]; + atomic_t log_batch; unsigned long log_transid; unsigned long last_log_commit; - unsigned long log_batch; pid_t log_start_pid; bool log_multiple_pids; |