SLUB: support slub_debug on by default
authorChristoph Lameter <clameter@sgi.com>
Mon, 16 Jul 2007 06:38:14 +0000 (23:38 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Mon, 16 Jul 2007 16:05:36 +0000 (09:05 -0700)
commitf0630fff54a239efbbd89faf6a62da071ef1ff78
tree4004adc3adf4dbe1a6188ca0bbd56f7606d4d05f
parentfc9a07e7bf1a76e710f5df017abb07628db1781d
SLUB: support slub_debug on by default

Add a new configuration variable

CONFIG_SLUB_DEBUG_ON

If set then the kernel will be booted by default with slab debugging
switched on. Similar to CONFIG_SLAB_DEBUG. By default slab debugging
is available but must be enabled by specifying "slub_debug" as a
kernel parameter.

Also add support to switch off slab debugging for a kernel that was
built with CONFIG_SLUB_DEBUG_ON. This works by specifying

slub_debug=-

as a kernel parameter.

Dave Jones wanted this feature.
http://marc.info/?l=linux-kernel&m=118072189913045&w=2

[akpm@linux-foundation.org: clean up switch statement]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/kernel-parameters.txt
Documentation/vm/slub.txt
lib/Kconfig.debug
mm/slub.c