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authorDavid Sterba <dsterba@suse.com>2018-11-27 14:50:27 +0100
committerDavid Sterba <dsterba@suse.com>2018-12-17 14:51:42 +0100
commitb00146b5d53c0306326eb46245901d20b69efd16 (patch)
treeadbe6828cff7ecb51eb323ce09f43270ba6262fb /fs/btrfs
parentda12fe5414f922d896289f037515096f189c66da (diff)
btrfs: switch BTRFS_FS_STATE_* to enums
We can use simple enum for values that are not part of on-disk format: global filesystem states. Reviewed-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ctree.h25
1 files changed, 19 insertions, 6 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0ac7efd3d2b2..84ffd3163aec 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -109,13 +109,26 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes)
}
/*
- * File system states
+ * Runtime (in-memory) states of filesystem
*/
-#define BTRFS_FS_STATE_ERROR 0
-#define BTRFS_FS_STATE_REMOUNTING 1
-#define BTRFS_FS_STATE_TRANS_ABORTED 2
-#define BTRFS_FS_STATE_DEV_REPLACING 3
-#define BTRFS_FS_STATE_DUMMY_FS_INFO 4
+enum {
+ /* Global indicator of serious filesystem errors */
+ BTRFS_FS_STATE_ERROR,
+ /*
+ * Filesystem is being remounted, allow to skip some operations, like
+ * defrag
+ */
+ BTRFS_FS_STATE_REMOUNTING,
+ /* Track if a transaction abort has been reported on this filesystem */
+ BTRFS_FS_STATE_TRANS_ABORTED,
+ /*
+ * Bio operations should be blocked on this filesystem because a source
+ * or target device is being destroyed as part of a device replace
+ */
+ BTRFS_FS_STATE_DEV_REPLACING,
+ /* The btrfs_fs_info created for self-tests */
+ BTRFS_FS_STATE_DUMMY_FS_INFO,
+};
#define BTRFS_BACKREF_REV_MAX 256
#define BTRFS_BACKREF_REV_SHIFT 56