From 0bfe9f790448012ef38abf4e78feb2e691e2d366 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Thu, 14 Jan 2021 09:41:27 +0800 Subject: f2fs: introduce sb_status sysfs node Introduce /sys/fs/f2fs//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 Signed-off-by: Jaegeuk Kim --- fs/f2fs/sysfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'fs/f2fs/sysfs.c') 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); -- cgit