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Date:   Thu,  7 Jun 2018 16:28:44 +0800
From:   Chengguang Xu <cgxu519@....com>
To:     jack@...e.com
Cc:     linux-ext4@...r.kernel.org, Chengguang Xu <cgxu519@....com>
Subject: [PATCH] ext2: remove nocheck option

The nocheck option is useless, so remove related things.

Signed-off-by: Chengguang Xu <cgxu519@....com>
---
 Documentation/filesystems/ext2.txt |  3 ---
 fs/ext2/ext2.h                     |  3 ---
 fs/ext2/super.c                    | 10 +---------
 3 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/Documentation/filesystems/ext2.txt b/Documentation/filesystems/ext2.txt
index 81c0becab225..5160c9cb8efe 100644
--- a/Documentation/filesystems/ext2.txt
+++ b/Documentation/filesystems/ext2.txt
@@ -17,9 +17,6 @@ set using tune2fs(8). Kernel-determined defaults are indicated by (*).
 bsddf			(*)	Makes `df' act like BSD.
 minixdf				Makes `df' act like Minix.
 
-check=none, nocheck	(*)	Don't do extra checking of bitmaps on mount
-				(check=normal and check=strict options removed)
-
 dax				Use direct access (no page cache).  See
 				Documentation/filesystems/dax.txt.
 
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index cc40802ddfa8..0ed36a5642db 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -374,7 +374,6 @@ struct ext2_inode {
 /*
  * Mount flags
  */
-#define EXT2_MOUNT_CHECK		0x000001  /* Do mount-time checks */
 #define EXT2_MOUNT_OLDALLOC		0x000002  /* Don't use the new Orlov allocator */
 #define EXT2_MOUNT_GRPID		0x000004  /* Create files with directory's group */
 #define EXT2_MOUNT_DEBUG		0x000008  /* Some debugging messages */
@@ -748,7 +747,6 @@ 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 +769,6 @@ 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 c09289a42dc5..b8471812f90e 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -441,7 +441,7 @@ static unsigned long get_sb_block(void **data)
 enum {
 	Opt_bsd_df, Opt_minix_df, Opt_grpid, Opt_nogrpid,
 	Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic,
-	Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug,
+	Opt_err_ro, Opt_nouid32, Opt_debug,
 	Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr,
 	Opt_acl, Opt_noacl, Opt_xip, Opt_dax, Opt_ignore, Opt_err, Opt_quota,
 	Opt_usrquota, Opt_grpquota, Opt_reservation, Opt_noreservation
@@ -461,8 +461,6 @@ static const match_table_t tokens = {
 	{Opt_err_panic, "errors=panic"},
 	{Opt_err_ro, "errors=remount-ro"},
 	{Opt_nouid32, "nouid32"},
-	{Opt_nocheck, "check=none"},
-	{Opt_nocheck, "nocheck"},
 	{Opt_debug, "debug"},
 	{Opt_oldalloc, "oldalloc"},
 	{Opt_orlov, "orlov"},
@@ -556,9 +554,6 @@ static int parse_options(char *options, struct super_block *sb,
 		case Opt_nouid32:
 			set_opt (opts->s_mount_opt, NO_UID32);
 			break;
-		case Opt_nocheck:
-			clear_opt (opts->s_mount_opt, CHECK);
-			break;
 		case Opt_debug:
 			set_opt (opts->s_mount_opt, DEBUG);
 			break;
@@ -1333,9 +1328,6 @@ 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;
 
-- 
2.17.1

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