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Btrfs: fix unblocked autodefraggers when remount 

The new mount option is set after parsing the remount arguments,
so it is wrong that checking the autodefrag is close or not at
btrfs_remount_prepare(). Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Miao Xie 2013-04-11 10:29:35 +00:00 committed by Josef Bacik
parent f7f82b81d2
commit f42a34b2f1
1 changed files with 7 additions and 3 deletions
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10
fs/btrfs/super.c
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@ -1191,11 +1191,14 @@ static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
new_pool_size);
}
static inline void btrfs_remount_prepare(struct btrfs_fs_info *fs_info,
unsigned long old_opts, int flags)
static inline void btrfs_remount_prepare(struct btrfs_fs_info *fs_info)
{
set_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state);
}
static inline void btrfs_remount_begin(struct btrfs_fs_info *fs_info,
unsigned long old_opts, int flags)
{
if (btrfs_raw_test_opt(old_opts, AUTO_DEFRAG) &&
(!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) ||
(flags & MS_RDONLY))) {
@ -1236,7 +1239,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
unsigned int old_metadata_ratio = fs_info->metadata_ratio;
int ret;
btrfs_remount_prepare(fs_info, old_opts, *flags);
btrfs_remount_prepare(fs_info);
ret = btrfs_parse_options(root, data);
if (ret) {
@ -1244,6 +1247,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
goto restore;
}
btrfs_remount_begin(fs_info, old_opts, *flags);
btrfs_resize_thread_pool(fs_info,
fs_info->thread_pool_size, old_thread_pool_size);