Mount option inode_readahead should be inode_readahead_blks. Also the value should be a power of 2. Signed-off-by: Eryu Guan <guaneryu@xxxxxxxxx> --- sys-utils/mount.8 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sys-utils/mount.8 b/sys-utils/mount.8 index 0fb2448..3ddd3f1 100644 --- a/sys-utils/mount.8 +++ b/sys-utils/mount.8 @@ -1490,10 +1490,10 @@ with other ext4 mount options. The ext4 filesystem enables write barriers by default. .TP -.BI inode_readahead= n +.BI 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. +The value must be a power of 2. The default value is 32 blocks. .TP .BI stripe= n Number of filesystem blocks that mballoc will try to use for allocation size -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html