From 453e2ff8e4ff2747acee1799e7ef959970c5cc78 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Tue, 13 Apr 2021 17:56:18 +0800 Subject: [PATCH] f2fs: avoid duplicated codes for cleanup f2fs_segment_has_free_slot() was copied and modified from __next_free_blkoff(), they are almost the same, clean up to reuse common code as much as possible. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 0cb1ca88d4aa..41df26292d7d 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -2635,22 +2635,20 @@ static void new_curseg(struct f2fs_sb_info *sbi, int type, bool new_sec) curseg->alloc_type = LFS; } -static void __next_free_blkoff(struct f2fs_sb_info *sbi, - struct curseg_info *seg, block_t start) +static int __next_free_blkoff(struct f2fs_sb_info *sbi, + int segno, block_t start) { - struct seg_entry *se = get_seg_entry(sbi, seg->segno); + struct seg_entry *se = get_seg_entry(sbi, segno); int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long); unsigned long *target_map = SIT_I(sbi)->tmp_map; unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map; unsigned long *cur_map = (unsigned long *)se->cur_valid_map; - int i, pos; + int i; for (i = 0; i < entries; i++) target_map[i] = ckpt_map[i] | cur_map[i]; - pos = __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, start); - - seg->next_blkoff = pos; + return __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, start); } /* @@ -2662,26 +2660,16 @@ static void __refresh_next_blkoff(struct f2fs_sb_info *sbi, struct curseg_info *seg) { if (seg->alloc_type == SSR) - __next_free_blkoff(sbi, seg, seg->next_blkoff + 1); + seg->next_blkoff = + __next_free_blkoff(sbi, seg->segno, + seg->next_blkoff + 1); else seg->next_blkoff++; } bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno) { - struct seg_entry *se = get_seg_entry(sbi, segno); - int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long); - unsigned long *target_map = SIT_I(sbi)->tmp_map; - unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map; - unsigned long *cur_map = (unsigned long *)se->cur_valid_map; - int i, pos; - - for (i = 0; i < entries; i++) - target_map[i] = ckpt_map[i] | cur_map[i]; - - pos = __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, 0); - - return pos < sbi->blocks_per_seg; + return __next_free_blkoff(sbi, segno, 0) < sbi->blocks_per_seg; } /* @@ -2709,7 +2697,7 @@ static void change_curseg(struct f2fs_sb_info *sbi, int type, bool flush) reset_curseg(sbi, type, 1); curseg->alloc_type = SSR; - __next_free_blkoff(sbi, curseg, 0); + curseg->next_blkoff = __next_free_blkoff(sbi, curseg->segno, 0); sum_page = f2fs_get_sum_page(sbi, new_segno); if (IS_ERR(sum_page)) {