From: David Sterba Date: Tue, 27 Nov 2018 14:03:20 +0000 (+0100) Subject: btrfs: switch EXTENT_BUFFER_* to enums X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=80cb38362d330e1e4156a4904c17ce994589bd7d;p=openwrt%2Fstaging%2Fblogic.git btrfs: switch EXTENT_BUFFER_* to enums We can use simple enum for values that are not part of on-disk format: extent buffer flags; Reviewed-by: Omar Sandoval Reviewed-by: Qu Wenruo Reviewed-by: Johannes Thumshirn Signed-off-by: David Sterba --- diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index a1d3ea5a0d32..fd42492e62e5 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -37,18 +37,22 @@ #define EXTENT_BIO_COMPRESSED 1 #define EXTENT_BIO_FLAG_SHIFT 16 -/* these are bit numbers for test/set bit */ -#define EXTENT_BUFFER_UPTODATE 0 -#define EXTENT_BUFFER_DIRTY 2 -#define EXTENT_BUFFER_CORRUPT 3 -#define EXTENT_BUFFER_READAHEAD 4 /* this got triggered by readahead */ -#define EXTENT_BUFFER_TREE_REF 5 -#define EXTENT_BUFFER_STALE 6 -#define EXTENT_BUFFER_WRITEBACK 7 -#define EXTENT_BUFFER_READ_ERR 8 /* read IO error */ -#define EXTENT_BUFFER_UNMAPPED 9 -#define EXTENT_BUFFER_IN_TREE 10 -#define EXTENT_BUFFER_WRITE_ERR 11 /* write IO error */ +enum { + EXTENT_BUFFER_UPTODATE, + EXTENT_BUFFER_DIRTY, + EXTENT_BUFFER_CORRUPT, + /* this got triggered by readahead */ + EXTENT_BUFFER_READAHEAD, + EXTENT_BUFFER_TREE_REF, + EXTENT_BUFFER_STALE, + EXTENT_BUFFER_WRITEBACK, + /* read IO error */ + EXTENT_BUFFER_READ_ERR, + EXTENT_BUFFER_UNMAPPED, + EXTENT_BUFFER_IN_TREE, + /* write IO error */ + EXTENT_BUFFER_WRITE_ERR, +}; /* these are flags for __process_pages_contig */ #define PAGE_UNLOCK (1 << 0)