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| author | Chao Yu <yuchao0@huawei.com> | 2021-01-14 04:41:27 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-01-28 02:20:06 +0300 |
| commit | 0bfe9f790448012ef38abf4e78feb2e691e2d366 (patch) | |
| tree | e82f42877d0b732cac76a3eb157322f5e739e831 /fs/f2fs/sysfs.c | |
| parent | 6d1451bf7f84ea45035553ae566b3c91661d902b (diff) | |
| download | linux-0bfe9f790448012ef38abf4e78feb2e691e2d366.tar.xz | |
f2fs: introduce sb_status sysfs node
Introduce /sys/fs/f2fs/<devname>/stat/sb_status to show superblock
status in real time as a hexadecimal value.
value sb status macro description
0x1 SBI_IS_DIRTY, /* dirty flag for checkpoint */
0x2 SBI_IS_CLOSE, /* specify unmounting */
0x4 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
0x8 SBI_POR_DOING, /* recovery is doing or not */
0x10 SBI_NEED_SB_WRITE, /* need to recover superblock */
0x20 SBI_NEED_CP, /* need to checkpoint */
0x40 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
0x80 SBI_IS_RECOVERED, /* recovered orphan/data */
0x100 SBI_CP_DISABLED, /* CP was disabled last mount */
0x200 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
0x400 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
0x800 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
0x1000 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
0x2000 SBI_IS_RESIZEFS, /* resizefs is in process */
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index bd1174ed2e6f..f39874d512ea 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -96,6 +96,12 @@ static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a, sbi->sectors_written_start) >> 1))); } +static ssize_t sb_status_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sprintf(buf, "%lx\n", sbi->s_flag); +} + static ssize_t features_show(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf) { @@ -702,7 +708,9 @@ static struct attribute *f2fs_feat_attrs[] = { }; ATTRIBUTE_GROUPS(f2fs_feat); +F2FS_GENERAL_RO_ATTR(sb_status); static struct attribute *f2fs_stat_attrs[] = { + ATTR_LIST(sb_status), NULL, }; ATTRIBUTE_GROUPS(f2fs_stat); |