ext2: add warning when specifying nocheck option

The option nocheck(nocheck/check=none) is useless but considering
backwards compatibility it's better to print warning for a while
before completely remove from the code.

This patch add proper warning message for option 'nocheck' and
remove unnecessary comment/function declaration which is used for
removed option 'check'.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jan Kara <jack@suse.cz>

2 files changed, 3 insertions, 5 deletions

diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index cc40802ddfa8..00e759f05161 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -748,7 +748,6 @@ extern void ext2_free_blocks (struct inode *, unsigned long,
                               unsigned long);
 extern unsigned long ext2_count_free_blocks (struct super_block *);
 extern unsigned long ext2_count_dirs (struct super_block *);
-extern void ext2_check_blocks_bitmap (struct super_block *);
 extern struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
                                                     unsigned int block_group,
                                                     struct buffer_head ** bh);
@@ -771,7 +770,6 @@ extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page
 extern struct inode * ext2_new_inode (struct inode *, umode_t, const struct qstr *);
 extern void ext2_free_inode (struct inode *);
 extern unsigned long ext2_count_free_inodes (struct super_block *);
-extern void ext2_check_inodes_bitmap (struct super_block *);
 extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
 
 /* inode.c */
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 25ab1274090f..8ff53f8da3bc 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -557,6 +557,9 @@ static int parse_options(char *options, struct super_block *sb,
                         set_opt (opts->s_mount_opt, NO_UID32);
                         break;
                 case Opt_nocheck:
+                        ext2_msg(sb, KERN_WARNING,
+                                "Option nocheck/check=none is deprecated and"
+                                " will be removed in June 2020.");
                         clear_opt (opts->s_mount_opt, CHECK);
                         break;
                 case Opt_debug:
@@ -1335,9 +1338,6 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
         new_opts.s_resgid = sbi->s_resgid;
         spin_unlock(&sbi->s_lock);
 
-        /*
-         * Allow the "check" option to be passed as a remount option.
-         */
         if (!parse_options(data, sb, &new_opts))
                 return -EINVAL;