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authorJaegeuk Kim <jaegeuk@kernel.org>2020-12-23 11:44:25 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-07 12:20:46 +0100
commit77dc257b4feb05c9e92d57d2021428a4f38a19e4 (patch)
treef2400aeed4afc8ae8031368257ca0d59a07d8e2f /fs/f2fs/segment.h
parentaa1362606059ade437a901fe7c33b24901683c14 (diff)
f2fs: handle unallocated section and zone on pinned/atgc
[ Upstream commit 632faca72938f9f63049e48a8c438913828ac7a9 ] If we have large section/zone, unallocated segment makes them corrupted. E.g., - Pinned file: -1 119304647 119304647 - ATGC data: -1 119304647 119304647 Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.h')
-rw-r--r--fs/f2fs/segment.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 325781a1ae4d..2034b9a07d63 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -88,11 +88,11 @@
#define BLKS_PER_SEC(sbi) \
((sbi)->segs_per_sec * (sbi)->blocks_per_seg)
#define GET_SEC_FROM_SEG(sbi, segno) \
- ((segno) / (sbi)->segs_per_sec)
+ (((segno) == -1) ? -1: (segno) / (sbi)->segs_per_sec)
#define GET_SEG_FROM_SEC(sbi, secno) \
((secno) * (sbi)->segs_per_sec)
#define GET_ZONE_FROM_SEC(sbi, secno) \
- ((secno) / (sbi)->secs_per_zone)
+ (((secno) == -1) ? -1: (secno) / (sbi)->secs_per_zone)
#define GET_ZONE_FROM_SEG(sbi, segno) \
GET_ZONE_FROM_SEC(sbi, GET_SEC_FROM_SEG(sbi, segno))