readahead: increase interleaved readahead size
authorWu Fengguang <fengguang.wu@intel.com>
Tue, 16 Jun 2009 22:31:23 +0000 (15:31 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 17 Jun 2009 02:47:29 +0000 (19:47 -0700)
commit160334a0cfa8e578b718f81038026326845d07d7
tree3c5b524faf23cdde4da1a3f2112de0c645206dba
parentcaca7cb748571a5b39943a9b3e7081feef055e5e
readahead: increase interleaved readahead size

Make sure interleaved readahead size is larger than request size.  This
also makes the readahead window grow up more quickly.

Reported-by: Xu Chenfeng <xcf@ustc.edu.cn>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Ying Han <yinghan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/readahead.c