diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index f0f5f28784b664d0eda75c68140105a5a4a1d76f..6375e57a5a69214541fda6a3b8056b95db31a10b 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -716,6 +716,8 @@ struct btrfs_delayed_root; #define BTRFS_FS_LOG1_ERR 12 #define BTRFS_FS_LOG2_ERR 13 #define BTRFS_FS_QUOTA_OVERRIDE 14 +/* Used to record internally whether fs has been frozen */ +#define BTRFS_FS_FROZEN 15 /* * Indicate that a whole-filesystem exclusive operation is running @@ -1107,9 +1109,6 @@ struct btrfs_fs_info { */ struct list_head pinned_chunks; - /* Used to record internally whether fs has been frozen */ - int fs_frozen; - /* Cached block sizes */ u32 nodesize; u32 sectorsize; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 2b00ebff13f83670138a833b2f9485a4f8b5a786..2ac0a35f44501f3cee32c70463716a6abb4cdd6f 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2661,7 +2661,6 @@ int open_ctree(struct super_block *sb, atomic_set(&fs_info->qgroup_op_seq, 0); atomic_set(&fs_info->reada_works_cnt, 0); atomic64_set(&fs_info->tree_mod_seq, 0); - fs_info->fs_frozen = 0; fs_info->sb = sb; fs_info->max_inline = BTRFS_DEFAULT_MAX_INLINE; fs_info->metadata_ratio = 0; diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 53d43cd3cace4d781e5a7763e77d39d31cac97ef..2100be6ae68ea95b64af3c2f9404b3f34464547a 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2242,7 +2242,7 @@ static int btrfs_freeze(struct super_block *sb) struct btrfs_fs_info *fs_info = btrfs_sb(sb); struct btrfs_root *root = fs_info->tree_root; - fs_info->fs_frozen = 1; + set_bit(BTRFS_FS_FROZEN, &fs_info->flags); /* * We don't need a barrier here, we'll wait for any transaction that * could be in progress on other threads (and do delayed iputs that @@ -2261,7 +2261,9 @@ static int btrfs_freeze(struct super_block *sb) static int btrfs_unfreeze(struct super_block *sb) { - btrfs_sb(sb)->fs_frozen = 0; + struct btrfs_fs_info *fs_info = btrfs_sb(sb); + + clear_bit(BTRFS_FS_FROZEN, &fs_info->flags); return 0; } diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index ab030fb225304f12ea010b078365758a1e105c0b..97e33513b19586a2c332b9d13eaa6e13150c736c 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -2314,7 +2314,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans) * it'll result in deadlock about SB_FREEZE_FS. */ if (current != fs_info->transaction_kthread && - current != fs_info->cleaner_kthread && !fs_info->fs_frozen) + current != fs_info->cleaner_kthread && + !test_bit(BTRFS_FS_FROZEN, &fs_info->flags)) btrfs_run_delayed_iputs(fs_info); return ret;