diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 13 | ||||
| -rw-r--r-- | fs/f2fs/sysfs.c | 9 |
2 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 59adb7dc6f9e..1fa140da5a1a 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -846,3 +846,16 @@ Description: For several zoned storage devices, vendors will provide extra space reserved_blocks. However, it is not enough, since this extra space should not be shown to users. So, with this new sysfs node, we can hide the space by substracting reserved_blocks from total bytes. + +What: /sys/fs/f2fs/<disk>/encoding_flags +Date: April 2025 +Contact: "Chao Yu" <chao@kernel.org> +Description: This is a read-only entry to show the value of sb.s_encoding_flags, the + value is hexadecimal. + + ============================ ========== + Flag_Name Flag_Value + ============================ ========== + SB_ENC_STRICT_MODE_FL 0x00000001 + SB_ENC_NO_COMPAT_FALLBACK_FL 0x00000002 + ============================ ========== diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 3a3485622691..cf98c5cbb98a 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -274,6 +274,13 @@ static ssize_t encoding_show(struct f2fs_attr *a, return sysfs_emit(buf, "(none)\n"); } +static ssize_t encoding_flags_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return sysfs_emit(buf, "%x\n", + le16_to_cpu(F2FS_RAW_SUPER(sbi)->s_encoding_flags)); +} + static ssize_t mounted_time_sec_show(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf) { @@ -1158,6 +1165,7 @@ F2FS_GENERAL_RO_ATTR(features); F2FS_GENERAL_RO_ATTR(current_reserved_blocks); F2FS_GENERAL_RO_ATTR(unusable); F2FS_GENERAL_RO_ATTR(encoding); +F2FS_GENERAL_RO_ATTR(encoding_flags); F2FS_GENERAL_RO_ATTR(mounted_time_sec); F2FS_GENERAL_RO_ATTR(main_blkaddr); F2FS_GENERAL_RO_ATTR(pending_discard); @@ -1270,6 +1278,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(reserved_blocks), ATTR_LIST(current_reserved_blocks), ATTR_LIST(encoding), + ATTR_LIST(encoding_flags), ATTR_LIST(mounted_time_sec), #ifdef CONFIG_F2FS_STAT_FS ATTR_LIST(cp_foreground_calls), |