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f2fs: support recording stop_checkpoint reason into super_block

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This patch supports to record stop_checkpoint error into
f2fs_super_block.s_stop_reason[].

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2022-09-28 23:38:53 +08:00 • committed by Jaegeuk Kim
parent ca7efd71c3
commit a9cfee0ef9
9 changed files with 65 additions and 17 deletions
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17
include/linux/f2fs_fs.h
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@ -73,6 +73,20 @@ struct f2fs_device {
__le32 total_segments;
} __packed;
/* reason of stop_checkpoint */
enum stop_cp_reason {
STOP_CP_REASON_SHUTDOWN,
STOP_CP_REASON_FAULT_INJECT,
STOP_CP_REASON_META_PAGE,
STOP_CP_REASON_WRITE_FAIL,
STOP_CP_REASON_CORRUPTED_SUMMARY,
STOP_CP_REASON_UPDATE_INODE,
STOP_CP_REASON_FLUSH_FAIL,
STOP_CP_REASON_MAX,
};
#define MAX_STOP_REASON 32
struct f2fs_super_block {
__le32 magic; /* Magic Number */
__le16 major_ver; /* Major Version */
@ -116,7 +130,8 @@ struct f2fs_super_block {
__u8 hot_ext_count; /* # of hot file extension */
__le16 s_encoding; /* Filename charset encoding */
__le16 s_encoding_flags; /* Filename charset encoding flags */
__u8 reserved[306]; /* valid reserved region */
__u8 s_stop_reason[MAX_STOP_REASON]; /* stop checkpoint reason */
__u8 reserved[274]; /* valid reserved region */
__le32 crc; /* checksum of superblock */
} __packed;