git.alex.org.uk - linux-flexiantxendom0.git/commit

author	Theodore Ts'o <tytso@mit.edu>
	Mon, 16 Apr 2012 16:16:20 +0000 (12:16 -0400)
committer	Luis Henriques <luis.henriques@canonical.com>
	Mon, 30 Apr 2012 18:15:06 +0000 (19:15 +0100)
commit	81ee68a0ce45214c71314c4191c7606ca2844d93
tree	f1c8c4f9ca2c3c3e1a189484941bedb5778bc66a	tree \| snapshot
parent	e66c329368a6ed9215a441a66f7d6a5f4e2db986	commit \| diff

ext4: address scalability issue by removing extent cache statistics

BugLink: http://bugs.launchpad.net/bugs/987337

commit 9cd70b347e9761ea2d2ac3d758c529a48a8193e6 upstream.

Andi Kleen and Tim Chen have reported that under certain circumstances
the extent cache statistics are causing scalability problems due to
cache line bounces.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

fs/ext4/ext4.h		diff \| blob \| history
fs/ext4/extents.c		diff \| blob \| history
fs/ext4/super.c		diff \| blob \| history