diff options
| author | David Sterba <dsterba@suse.com> | 2017-06-15 19:10:03 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-06-20 14:22:42 +0200 |
| commit | fac03c8daeb581e2bc38e5a8c0c6a42cf87cf1c3 (patch) | |
| tree | a6f7828cc438f65698b4341ae84f576fbc853eec /fs/btrfs | |
| parent | 79b4f4c605b76194448315865ebcf6fcb0844fc5 (diff) | |
btrfs: move fs_info::fs_frozen to the flags
We can keep the state among the other fs_info flags, there's no reason
why fs_frozen would need to be separate.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.h | 5 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 6 | ||||
| -rw-r--r-- | fs/btrfs/transaction.c | 3 |
4 files changed, 8 insertions, 7 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index f0f5f28784b6..6375e57a5a69 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 2b00ebff13f8..2ac0a35f4450 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 53d43cd3cace..2100be6ae68e 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 ab030fb22530..97e33513b195 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; |