[PATCH 4/4] ext4: Print error when argument of inode_readahead_blk is invalid

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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 <jack@xxxxxxx>
---
 fs/ext4/super.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f1acaa6..ced6671 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1518,12 +1518,10 @@ 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)) {
+		if (arg && (arg > (1 << 30) || !is_power_of_2(arg))) {
 			ext4_msg(sb, KERN_ERR,
-				 "EXT4-fs: inode_readahead_blks"
-				 " must be a power of 2");
+				 "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;
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux