From: Jaegeuk Kim Date: Sun, 31 Mar 2013 04:58:51 +0000 (+0900) Subject: f2fs: allocate remained free segments in the LFS mode X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=60374688a1a1cc8ef173d3dab42574719b851ac4;p=openwrt%2Fstaging%2Fblogic.git f2fs: allocate remained free segments in the LFS mode This patch adds a new condition that allocates free segments in the current active section even if SSR is needed. Otherwise, f2fs cannot allocate remained free segments in the section since SSR finds dirty segments only. Reviewed-by: Namjae Jeon Signed-off-by: Jaegeuk Kim --- diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index d5244f6765a9..fe520d3448e0 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -347,6 +347,17 @@ next: return NULL_SEGNO; } +static int is_next_segment_free(struct f2fs_sb_info *sbi, int type) +{ + struct curseg_info *curseg = CURSEG_I(sbi, type); + unsigned int segno = curseg->segno; + struct free_segmap_info *free_i = FREE_I(sbi); + + if (segno + 1 < TOTAL_SEGS(sbi) && (segno + 1) % sbi->segs_per_sec) + return !test_bit(segno + 1, free_i->free_segmap); + return 0; +} + /* * Find a new segment from the free segments bitmap to right order * This function should be returned with success, otherwise BUG @@ -580,6 +591,8 @@ static void allocate_segment_by_default(struct f2fs_sb_info *sbi, change_curseg(sbi, type, false); else if (type == CURSEG_WARM_NODE) new_curseg(sbi, type, false); + else if (curseg->alloc_type == LFS && is_next_segment_free(sbi, type)) + new_curseg(sbi, type, false); else if (need_SSR(sbi) && get_ssr_segment(sbi, type)) change_curseg(sbi, type, true); else