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authorYunlei He <heyunlei@huawei.com>2018-03-08 11:29:13 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2018-03-19 09:33:50 +0300
commit0833721ec3658a4e9d5e58b6fa82cf9edc431e59 (patch)
tree9eb0f0016c78e2a95b0244bb5ff3fd0a7d4391ff /fs/f2fs/segment.h
parent02117b8ae9c0549500119c42375f9e15602bf47e (diff)
downloadlinux-0833721ec3658a4e9d5e58b6fa82cf9edc431e59.tar.xz
f2fs: check blkaddr more accuratly before issue a bio
This patch check blkaddr more accuratly before issue a write or read bio. Signed-off-by: Yunlei He <heyunlei@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.h')
-rw-r--r--fs/f2fs/segment.h25
1 files changed, 19 insertions, 6 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index dbb774aaf387..3325d0769723 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -53,13 +53,19 @@
((secno) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno / \
(sbi)->segs_per_sec)) \
-#define MAIN_BLKADDR(sbi) (SM_I(sbi)->main_blkaddr)
-#define SEG0_BLKADDR(sbi) (SM_I(sbi)->seg0_blkaddr)
+#define MAIN_BLKADDR(sbi) \
+ (SM_I(sbi) ? SM_I(sbi)->main_blkaddr : \
+ le32_to_cpu(F2FS_RAW_SUPER(sbi)->main_blkaddr))
+#define SEG0_BLKADDR(sbi) \
+ (SM_I(sbi) ? SM_I(sbi)->seg0_blkaddr : \
+ le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment0_blkaddr))
#define MAIN_SEGS(sbi) (SM_I(sbi)->main_segments)
#define MAIN_SECS(sbi) ((sbi)->total_sections)
-#define TOTAL_SEGS(sbi) (SM_I(sbi)->segment_count)
+#define TOTAL_SEGS(sbi) \
+ (SM_I(sbi) ? SM_I(sbi)->segment_count : \
+ le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count))
#define TOTAL_BLKS(sbi) (TOTAL_SEGS(sbi) << (sbi)->log_blocks_per_seg)
#define MAX_BLKADDR(sbi) (SEG0_BLKADDR(sbi) + TOTAL_BLKS(sbi))
@@ -632,10 +638,17 @@ static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1);
}
-static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr)
+static inline void verify_block_addr(struct f2fs_io_info *fio, block_t blk_addr)
{
- BUG_ON(blk_addr < SEG0_BLKADDR(sbi)
- || blk_addr >= MAX_BLKADDR(sbi));
+ struct f2fs_sb_info *sbi = fio->sbi;
+
+ if (PAGE_TYPE_OF_BIO(fio->type) == META &&
+ (!is_read_io(fio->op) || fio->is_meta))
+ BUG_ON(blk_addr < SEG0_BLKADDR(sbi) ||
+ blk_addr >= MAIN_BLKADDR(sbi));
+ else
+ BUG_ON(blk_addr < MAIN_BLKADDR(sbi) ||
+ blk_addr >= MAX_BLKADDR(sbi));
}
/*