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authorThomas Gleixner <tglx@linutronix.de>2008-04-30 11:54:59 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 19:29:53 +0400
commit30327acf7846c5eb97c8e31c78317a2918d3e515 (patch)
treeb4844dfd9cd85b9fc49c91b4b7e64eebac87167c /include/linux/slab.h
parent145980a0b07520f0f82cc40999acc92b349ea40c (diff)
downloadlinux-30327acf7846c5eb97c8e31c78317a2918d3e515.tar.xz
slab: add a flag to prevent debug_free checks on a kmem_cache
This is a preperatory patch for the debugobjects infrastructure. The flag prevents debug_free checks on kmem_caches. This is necessary to avoid resursive calls into a debug mechanism which uses a kmem_cache itself. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: 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 'include/linux/slab.h')
-rw-r--r--include/linux/slab.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index f62caaad94e0..6d03c954f641 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -29,6 +29,13 @@
#define SLAB_MEM_SPREAD 0x00100000UL /* Spread some memory over cpuset */
#define SLAB_TRACE 0x00200000UL /* Trace allocations and frees */
+/* Flag to prevent checks on free */
+#ifdef CONFIG_DEBUG_OBJECTS
+# define SLAB_DEBUG_OBJECTS 0x00400000UL
+#else
+# define SLAB_DEBUG_OBJECTS 0x00000000UL
+#endif
+
/* The following flags affect the page allocator grouping pages by mobility */
#define SLAB_RECLAIM_ACCOUNT 0x00020000UL /* Objects are reclaimable */
#define SLAB_TEMPORARY SLAB_RECLAIM_ACCOUNT /* Objects are short-lived */