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authorChristoph Lameter <clameter@sgi.com>2007-05-09 02:32:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 12:30:45 -0700
commit41ecc55b8a8ca618e6d490982c7ce45d230d4399 (patch)
treeba2f416a2ea92eb335cae028c586b3cd3797d66c /init
parent02cbc874463924de2c3403379b698bce3cd277a5 (diff)
downloadlinux-linaro-41ecc55b8a8ca618e6d490982c7ce45d230d4399.tar.gz
SLUB: add CONFIG_SLUB_DEBUG
CONFIG_SLUB_DEBUG can be used to switch off the debugging and sysfs components of SLUB. Thus SLUB will be able to replace SLOB. SLUB can arrange objects in a denser way than SLOB and the code size should be minimal without debugging and sysfs support. Note that CONFIG_SLUB_DEBUG is materially different from CONFIG_SLAB_DEBUG. CONFIG_SLAB_DEBUG is used to enable slab debugging in SLAB. SLUB enables debugging via a boot parameter. SLUB debug code should always be present. CONFIG_SLUB_DEBUG can be modified in the embedded config section. 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>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index d0edf42f4db..da6a91c4a05 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -504,6 +504,15 @@ config VM_EVENT_COUNTERS
on EMBEDDED systems. /proc/vmstat will only show page counts
if VM event counters are disabled.
+config SLUB_DEBUG
+ default y
+ bool "Enable SLUB debugging support" if EMBEDDED
+ help
+ SLUB has extensive debug support features. Disabling these can
+ result in significant savings in code size. This also disables
+ SLUB sysfs support. /sys/slab will not exist and there will be
+ no support for cache validation etc.
+
choice
prompt "Choose SLAB allocator"
default SLAB