From e33e60eaed5353c9e6863124ad1081a38640db4b Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Sat, 2 Feb 2013 23:14:31 -0500 Subject: [PATCH] ext4: print error when argument of inode_readahead_blk is invalid If argument of inode_readahead_blk is too big, we just bail out without printing any error. Fix this since it could confuse users. Signed-off-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/ext4/super.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9b36c11baad9..b68f4b671bc7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1555,11 +1555,10 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, } else if (token == Opt_min_batch_time) { sbi->s_min_batch_time = arg; } else if (token == Opt_inode_readahead_blks) { - if (arg > (1 << 30)) - return -1; - if (arg && !is_power_of_2(arg)) { - ext4_msg(sb, KERN_ERR, "EXT4-fs: inode_readahead_blks" - " must be a power of 2"); + if (arg && (arg > (1 << 30) || !is_power_of_2(arg))) { + ext4_msg(sb, KERN_ERR, + "EXT4-fs: inode_readahead_blks must be " + "0 or a power of 2 smaller than 2^31"); return -1; } sbi->s_inode_readahead_blks = arg; -- 2.20.1