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btrfs: switch EXTENT_FLAG_* to enums 

We can use simple enum for values that are not part of on-disk format:
extent map flags.

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>
This commit is contained in:
David Sterba 2018-11-27 15:11:43 +01:00
parent 80cb38362d
commit 50b5b6020f
1 changed files with 14 additions and 7 deletions
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21
fs/btrfs/extent_map.h
View File

@ -11,13 +11,20 @@
#define EXTENT_MAP_INLINE ((u64)-2)
#define EXTENT_MAP_DELALLOC ((u64)-1)
/* bits for the flags field */
#define EXTENT_FLAG_PINNED 0 /* this entry not yet on disk, don't free it */
#define EXTENT_FLAG_COMPRESSED 1
#define EXTENT_FLAG_PREALLOC 3 /* pre-allocated extent */
#define EXTENT_FLAG_LOGGING 4 /* Logging this extent */
#define EXTENT_FLAG_FILLING 5 /* Filling in a preallocated extent */
#define EXTENT_FLAG_FS_MAPPING 6 /* filesystem extent mapping type */
/* bits for the extent_map::flags field */
enum {
/* this entry not yet on disk, don't free it */
EXTENT_FLAG_PINNED,
EXTENT_FLAG_COMPRESSED,
/* pre-allocated extent */
EXTENT_FLAG_PREALLOC,
/* Logging this extent */
EXTENT_FLAG_LOGGING,
/* Filling in a preallocated extent */
EXTENT_FLAG_FILLING,
/* filesystem extent mapping type */
EXTENT_FLAG_FS_MAPPING,
};
struct extent_map {
struct rb_node rb_node;