VFS: increase pseudo-filesystem block size to PAGE_SIZE
authorAlex Nixon <alex.nixon@citrix.com>
Wed, 30 Jul 2008 05:33:03 +0000 (22:33 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 30 Jul 2008 16:41:44 +0000 (09:41 -0700)
commit3971e1a917548977cff71418a7c3575ffbc9571f
tree083fab14d9f71f3977978d69bc2d43c4044a5d9a
parentfdac4e69a1fc181652b37ce6a32ab8a56b0f3bcf
VFS: increase pseudo-filesystem block size to PAGE_SIZE

This commit:

    commit ba52de123d454b57369f291348266d86f4b35070
    Author: Theodore Ts'o <tytso@mit.edu>
    Date:   Wed Sep 27 01:50:49 2006 -0700

        [PATCH] inode-diet: Eliminate i_blksize from the inode structure

caused the block size used by pseudo-filesystems to decrease from
PAGE_SIZE to 1024 leading to a doubling of the number of context switches
during a kernbench run.

Signed-off-by: Alex Nixon <Alex.Nixon@citrix.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ian Campbell <Ian.Campbell@eu.citrix.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/libfs.c