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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-03-31 13:58:51 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-04-03 17:27:50 +0900
commit60374688a1a1cc8ef173d3dab42574719b851ac4 (patch)
treec658d4b8796ccb85675b8c7c931a4c8052b38ea1 /fs/f2fs
parent4ebefc4443898f5429185ef96d85cfce0fbcc16a (diff)
downloadop-kernel-dev-60374688a1a1cc8ef173d3dab42574719b851ac4.zip
op-kernel-dev-60374688a1a1cc8ef173d3dab42574719b851ac4.tar.gz
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 <namjae.jeon@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/segment.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d5244f6..fe520d3 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
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