ext4: Update documentation to correct the inode_readahead_blks option name

Per commit 240799cd, the option name for readahead should be
inode_readahead_blks, not inode_readahead.

Signed-off-by: Fang Wenqi <antonf@turbolinux.com.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index af6885c3c821..e1def1786e50 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -196,7 +196,7 @@ nobarrier		This also requires an IO stack which can support
                         also be used to enable or disable barriers, for
                         consistency with other ext4 mount options.
 
-inode_readahead=n       This tuning parameter controls the maximum
+inode_readahead_blks=n  This tuning parameter controls the maximum
                         number of inode table blocks that ext4's inode
                         table readahead algorithm will pre-read into
                         the buffer cache.  The default value is 32 blocks.