mnt_want_write_file is faster when file has been opened for write. Signed-off-by: Liu Bo <liubo2009@xxxxxxxxxxxxxx> --- fs/btrfs/ioctl.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 069cd85..df4c04d 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -3261,7 +3261,7 @@ static long btrfs_ioctl_balance(struct file *file, void __user *arg) if (!capable(CAP_SYS_ADMIN)) return -EPERM; - ret = mnt_want_write(file->f_path.mnt); + ret = mnt_want_write_file(file); if (ret) return ret; @@ -3331,7 +3331,7 @@ out_bargs: out: mutex_unlock(&fs_info->balance_mutex); mutex_unlock(&fs_info->volume_mutex); - mnt_drop_write(file->f_path.mnt); + mnt_drop_write_file(file); return ret; } -- 1.6.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
