From ea75f7357e3a881bd1bd0db5e483fc6a8681567b Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Tue, 10 Jan 2012 09:39:02 -0500 Subject: [PATCH] ext4: Support "check=none" "nocheck" mount options The ext2/ext3 filesystems supported "check=none" and "nocheck" as mount options even though that was already the default behavior and it essentially did nothing. When using ext4 to mount ext2/ext3 filesystems, that mount option causes the mount to fail. That isn't as backward compatible as it could be, so add support to ext4 to accept the option. Signed-off-by: Josh Boyer --- fs/ext4/super.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 3e1329e..5ff09e7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1333,7 +1333,7 @@ enum { Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity, Opt_inode_readahead_blks, Opt_journal_ioprio, Opt_dioread_nolock, Opt_dioread_lock, - Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable, + Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable, Opt_nocheck, }; static const match_table_t tokens = { @@ -1409,6 +1409,8 @@ static const match_table_t tokens = { {Opt_init_itable, "init_itable=%u"}, {Opt_init_itable, "init_itable"}, {Opt_noinit_itable, "noinit_itable"}, + {Opt_nocheck, "check=none"}, + {Opt_nocheck, "nocheck"}, {Opt_err, NULL}, }; @@ -1905,6 +1907,9 @@ set_qf_format: case Opt_noinit_itable: clear_opt(sb, INIT_INODE_TABLE); break; + case Opt_nocheck: + /* ext2/ext3 used to "support" this option. Silently eat it */ + break; default: ext4_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" " -- 1.7.7.5