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authorJaegeuk Kim <jaegeuk@kernel.org>2016-06-07 04:49:54 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2016-06-08 20:25:52 +0300
commitaa987273290d206b298e9d09db83e32ead661098 (patch)
tree8d082a03a5e2cc4af524073fcbacb650308a41a5
parent19a5f5e2ef37f032efd840ada257bce2e91c8066 (diff)
downloadlinux-aa987273290d206b298e9d09db83e32ead661098.tar.xz
f2fs: skip clean segment for gc
If a segment in a section is clean or prefreed, we don't need to get its summary and do gc. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
-rw-r--r--fs/f2fs/gc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 67fd2855ccc9..e1d274cdecb8 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -795,6 +795,10 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
}
for (segno = start_segno; segno < end_segno; segno++) {
+
+ if (get_valid_blocks(sbi, segno, 1) == 0)
+ continue;
+
/* find segment summary of victim */
sum_page = find_get_page(META_MAPPING(sbi),
GET_SUM_BLOCK(sbi, segno));