Messages in this thread Patch in this message |  | | | Date | Fri, 21 Mar 2008 20:26:13 -0000 | | From | Thomas Gleixner <> | | Subject | [patch 1/5] 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>
---
include/linux/slab.h | 7 +++++++
1 file changed, 7 insertions(+)
Index: linux-2.6/include/linux/slab.h
===================================================================
--- linux-2.6.orig/include/linux/slab.h
+++ linux-2.6/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 */
--
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