1 files changed, 17 insertions, 10 deletions

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index b777cbdd796b..0575edbe3ed6 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -90,34 +90,34 @@ static ssize_t features_show(struct f2fs_attr *a,
 	if (!sb->s_bdev->bd_part)
 		return snprintf(buf, PAGE_SIZE, "0\n");
 
-	if (f2fs_sb_has_encrypt(sb))
+	if (f2fs_sb_has_encrypt(sbi))
 		len += snprintf(buf, PAGE_SIZE - len, "%s",
 						"encryption");
-	if (f2fs_sb_has_blkzoned(sb))
+	if (f2fs_sb_has_blkzoned(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "blkzoned");
-	if (f2fs_sb_has_extra_attr(sb))
+	if (f2fs_sb_has_extra_attr(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "extra_attr");
-	if (f2fs_sb_has_project_quota(sb))
+	if (f2fs_sb_has_project_quota(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "projquota");
-	if (f2fs_sb_has_inode_chksum(sb))
+	if (f2fs_sb_has_inode_chksum(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "inode_checksum");
-	if (f2fs_sb_has_flexible_inline_xattr(sb))
+	if (f2fs_sb_has_flexible_inline_xattr(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "flexible_inline_xattr");
-	if (f2fs_sb_has_quota_ino(sb))
+	if (f2fs_sb_has_quota_ino(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "quota_ino");
-	if (f2fs_sb_has_inode_crtime(sb))
+	if (f2fs_sb_has_inode_crtime(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "inode_crtime");
-	if (f2fs_sb_has_lost_found(sb))
+	if (f2fs_sb_has_lost_found(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "lost_found");
-	if (f2fs_sb_has_sb_chksum(sb))
+	if (f2fs_sb_has_sb_chksum(sbi))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "sb_checksum");
 	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
@@ -246,6 +246,11 @@ out:
 		return count;
 	}
 
+	if (!strcmp(a->attr.name, "migration_granularity")) {
+		if (t == 0 || t > sbi->segs_per_sec)
+			return -EINVAL;
+	}
+
 	if (!strcmp(a->attr.name, "trim_sections"))
 		return -EINVAL;
 
@@ -406,6 +411,7 @@ F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
@@ -460,6 +466,7 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(min_hot_blocks),
 	ATTR_LIST(min_ssr_sections),
 	ATTR_LIST(max_victim_search),
+	ATTR_LIST(migration_granularity),
 	ATTR_LIST(dir_level),
 	ATTR_LIST(ram_thresh),
 	ATTR_LIST(ra_nid_pages),