ext4: remove /proc tuning knobs

Remove tuning knobs in /proc/fs/ext4/<dev/* since they have been
replaced by knobs in sysfs at /sys/fs/ext4/<dev>/*.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 1 insertions, 6 deletions

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7dcac9d7e491..d3118d1acc39 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4153,12 +4153,7 @@ make_io:
                         unsigned num;
 
                         table = ext4_inode_table(sb, gdp);
-                        /* Make sure s_inode_readahead_blks is a power of 2 */
-                        while (EXT4_SB(sb)->s_inode_readahead_blks &
-                               (EXT4_SB(sb)->s_inode_readahead_blks-1))
-                                EXT4_SB(sb)->s_inode_readahead_blks = 
-                                   (EXT4_SB(sb)->s_inode_readahead_blks &
-                                    (EXT4_SB(sb)->s_inode_readahead_blks-1));
+                        /* s_inode_readahead_blks is always a power of 2 */
                         b = block & ~(EXT4_SB(sb)->s_inode_readahead_blks-1);
                         if (table > b)
                                 b = table;