user/sven/linux.git/include/linux/slab.h, branch v3.4.106

introduce SIZE_MAX

2014-07-31T19:54:53Z

commit a3860c1c5dd1137db23d7786d284939c5761d517 upstream. ULONG_MAX is often used to check for integer overflow when calculating allocation size. While ULONG_MAX happens to work on most systems, there is no guarantee that `size_t' must be the same size as `long'. This patch introduces SIZE_MAX, the maximum value of `size_t', to improve portability and readability for allocation size validation. Signed-off-by: Xi Wang Acked-by: Alex Elder Cc: David Airlie Cc: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Cc: Qiang Huang Signed-off-by: Greg Kroah-Hartman

slab: introduce kmalloc_array()

2012-03-06T09:01:33Z

Introduce a kmalloc_array() wrapper that performs integer overflow checking without zeroing the memory. Suggested-by: Andrew Morton Suggested-by: Jens Axboe Signed-off-by: Xi Wang Cc: Dan Carpenter Acked-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Pekka Enberg

slab allocators: Provide generic description of alignment defines

2011-07-07T18:04:12Z

Provide description for alignment defines. Acked-by: David Rientjes Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg

slab, slub, slob: Unify alignment definition

2011-06-16T16:40:20Z

Every slab has its on alignment definition in include/linux/sl?b_def.h. Extract those and define a common set in include/linux/slab.h. SLOB: As notes sometimes we need double word alignment on 32 bit. This gives all structures allocated by SLOB a unsigned long long alignment like the others do. SLAB: If ARCH_SLAB_MINALIGN is not set SLAB would set ARCH_SLAB_MINALIGN to zero meaning no alignment at all. Give it the default unsigned long long alignment. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg

mm: Remove support for kmem_cache_name()

2011-01-23T19:00:05Z

The last user was ext4 and Eric Sandeen removed the call in a recent patch. See the following URL for the discussion: http://marc.info/?l=linux-ext4&m=129546975702198&w=2 Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg

kernel: kmem_ptr_validate considered harmful

2011-01-07T06:50:16Z

This is a nasty and error prone API. It is no longer used, remove it. Signed-off-by: Nick Piggin

slab: fix caller tracking on !CONFIG_DEBUG_SLAB && CONFIG_TRACING

2010-07-04T16:48:33Z

In slab, all __xxx_track_caller is defined on CONFIG_DEBUG_SLAB || CONFIG_TRACING, thus caller tracking function should be worked for CONFIG_TRACING. But if CONFIG_DEBUG_SLAB is not set, include/linux/slab.h will define xxx_track_caller to __xxx() without consideration of CONFIG_TRACING. This will break the caller tracking behaviour then. Cc: Christoph Lameter Cc: Matt Mackall Cc: Vegard Nossum Cc: Dmitry Monakhov Cc: Catalin Marinas Acked-by: David Rientjes Signed-off-by: Xiaotian Feng Signed-off-by: Pekka Enberg

slab: Generify kernel pointer validation

2010-04-09T17:09:50Z

As suggested by Linus, introduce a kern_ptr_validate() helper that does some sanity checks to make sure a pointer is a valid kernel pointer. This is a preparational step for fixing SLUB kmem_ptr_validate(). Cc: Andrew Morton Cc: Christoph Lameter Cc: David Rientjes Cc: Ingo Molnar Cc: Matt Mackall Cc: Nick Piggin Signed-off-by: Pekka Enberg Signed-off-by: Linus Torvalds

failslab: add ability to filter slab caches

2010-02-26T17:19:39Z

This patch allow to inject faults only for specific slabs. In order to preserve default behavior cache filter is off by default (all caches are faulty). One may define specific set of slabs like this: # mark skbuff_head_cache as faulty echo 1 > /sys/kernel/slab/skbuff_head_cache/failslab # Turn on cache filter (off by default) echo 1 > /sys/kernel/debug/failslab/cache-filter # Turn on fault injection echo 1 > /sys/kernel/debug/failslab/times echo 1 > /sys/kernel/debug/failslab/probability Acked-by: David Rientjes Acked-by: Akinobu Mita Acked-by: Christoph Lameter Signed-off-by: Dmitry Monakhov Signed-off-by: Pekka Enberg

Merge commit 'linus/master' into HEAD

2009-06-15T13:50:49Z

Conflicts: MAINTAINERS Signed-off-by: Vegard Nossum