From: Thomas Gleixner Date: Wed, 30 Apr 2008 07:54:59 +0000 (-0700) Subject: slab: add a flag to prevent debug_free checks on a kmem_cache X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=30327acf7846c5eb97c8e31c78317a2918d3e515;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Acked-by: Ingo Molnar Cc: Pekka Enberg Cc: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- 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 */