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| author | Jaegeuk Kim | 2014-09-23 20:23:01 +0200 |
|---|---|---|
| committer | Jaegeuk Kim | 2014-10-01 00:34:47 +0200 |
| commit | 7cd8558baa4e4588a80ecb31cb30784195763cdd (patch) | |
| tree | f6c9e24be9fbd339bab3bae92b5b7749d28a1636 /fs/f2fs/gc.c | |
| parent | f2fs: refactor flush_nat_entries to remove costly reorganizing ops (diff) | |
| download | kernel-qcow2-linux-7cd8558baa4e4588a80ecb31cb30784195763cdd.tar.gz kernel-qcow2-linux-7cd8558baa4e4588a80ecb31cb30784195763cdd.tar.xz kernel-qcow2-linux-7cd8558baa4e4588a80ecb31cb30784195763cdd.zip | |
f2fs: check the use of macros on block counts and addresses
This patch cleans up the existing and new macros for readability.
Rule is like this.
,-----------------------------------------> MAX_BLKADDR -,
| ,------------- TOTAL_BLKS ----------------------------,
| | |
| ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress |
block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) |
address 0..x................ a b c d .............................
| |
global seg# 0...................... m .............................
| | |
| `------- MAIN_SEGS -----------'
`-------------- TOTAL_SEGS ---------------------------'
| |
seg# 0..........xx..................
= Note =
o GET_SEGNO_FROM_SEG0 : blk address -> global segno
o GET_SEGNO : blk address -> segno
o START_BLOCK : segno -> starting block address
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
| -rw-r--r-- | fs/f2fs/gc.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index e88fcf65aa7f..2a8f4acdb86b 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -193,7 +193,7 @@ static unsigned int check_bg_victims(struct f2fs_sb_info *sbi) * selected by background GC before. * Those segments guarantee they have small valid blocks. */ - for_each_set_bit(secno, dirty_i->victim_secmap, TOTAL_SECS(sbi)) { + for_each_set_bit(secno, dirty_i->victim_secmap, MAIN_SECS(sbi)) { if (sec_usage_check(sbi, secno)) continue; clear_bit(secno, dirty_i->victim_secmap); @@ -281,9 +281,8 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi, unsigned long cost; unsigned int segno; - segno = find_next_bit(p.dirty_segmap, - TOTAL_SEGS(sbi), p.offset); - if (segno >= TOTAL_SEGS(sbi)) { + segno = find_next_bit(p.dirty_segmap, MAIN_SEGS(sbi), p.offset); + if (segno >= MAIN_SEGS(sbi)) { if (sbi->last_victim[p.gc_mode]) { sbi->last_victim[p.gc_mode] = 0; p.offset = 0; |