From: Jan Kara <jack@xxxxxxx>
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>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
---
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 e8d3c2f..bcd5f12 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1558,11 +1558,10 @@ 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;
--
1.7.12.rc0.22.gcdd159b
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