user/sven/linux.git/include/linux/slab_def.h, branch v3.4.92

tracing/mm: Move include of trace/events/kmem.h out of header into slab.c

2012-01-09T22:19:33Z

Including trace/events/*.h TRACE_EVENT() macro headers in other headers can cause strange side effects if another trace/event/*.h header includes that header. Having trace/events/kmem.h inside slab_def.h caused a compile error in sparc64 when changes were done to some header files. Moving the kmem.h trace header out of slab.h and into slab.c fixes the problem. Note, both slub.c and slob.c already include the trace/events/kmem.h file. Only slab.c had it missing. Link: http://lkml.kernel.org/r/20120105190405.1e3191fb5a43b2a0f1655e1f@canb.auug.org.au Reported-by: Stephen Rothwell Signed-off-by: Steven Rostedt Signed-off-by: Linus Torvalds

slab: shrink sizeof(struct kmem_cache)

2011-07-20T17:27:56Z

Reduce high order allocations for some setups. (NR_CPUS=4096 -> we need 64KB per kmem_cache struct) We now allocate exact needed size (using nr_cpu_ids and nr_node_ids) This also makes code a bit smaller on x86_64, since some field offsets are less than the 127 limit : Before patch : # size mm/slab.o text data bss dec hex filename 22605 361665 32 384302 5dd2e mm/slab.o After patch : # size mm/slab.o text data bss dec hex filename 22349 353473 8224 384046 5dc2e mm/slab.o CC: Andrew Morton Reported-by: Konstantin Khlebnikov Signed-off-by: Eric Dumazet Acked-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

tracing/slab: Move kmalloc tracepoint out of inline code

2010-11-28T19:16:28Z

The tracepoint for kmalloc is in the slab inlined code which causes every instance of kmalloc to have the tracepoint. This patch moves the tracepoint out of the inline code to the slab C file, which removes a large number of inlined trace points. objdump -dr vmlinux.slab| grep 'jmpq.* Signed-off-by: Pekka Enberg

dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

2010-08-11T15:59:21Z

Now each architecture has the own dma_get_cache_alignment implementation. dma_get_cache_alignment returns the minimum DMA alignment. Architectures define it as ARCH_KMALLOC_MINALIGN (it's used to make sure that malloc'ed buffer is DMA-safe; the buffer doesn't share a cache with the others). So we can unify dma_get_cache_alignment implementations. This patch: dma_get_cache_alignment() needs to know if an architecture defines ARCH_KMALLOC_MINALIGN or not (needs to know if architecture has DMA alignment restriction). However, slab.h define ARCH_KMALLOC_MINALIGN if architectures doesn't define it. Let's rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN. ARCH_KMALLOC_MINALIGN is used only in the internals of slab/slob/slub (except for crypto). Signed-off-by: FUJITA Tomonori Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

tracing: Remove kmemtrace ftrace plugin

2010-06-09T15:31:22Z

We have been resisting new ftrace plugins and removing existing ones, and kmemtrace has been superseded by kmem trace events and perf-kmem, so we remove it. Signed-off-by: Li Zefan Acked-by: Pekka Enberg Acked-by: Eduard - Gabriel Munteanu Cc: Ingo Molnar Cc: Steven Rostedt [ remove kmemtrace from the makefile, handle slob too ] Signed-off-by: Frederic Weisbecker

mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to

2010-05-19T19:03:13Z

Acked-by: Herbert Xu Signed-off-by: David Woodhouse Signed-off-by: Pekka Enberg

tracing, slab: Define kmem_cache_alloc_notrace ifdef CONFIG_TRACING

2009-12-11T08:17:02Z

Define kmem_trace_alloc_{,node}_notrace() if CONFIG_TRACING is enabled, otherwise perf-kmem will show wrong stats ifndef CONFIG_KMEM_TRACE, because a kmalloc() memory allocation may be traced by both trace_kmalloc() and trace_kmem_cache_alloc(). Signed-off-by: Li Zefan Reviewed-by: Pekka Enberg Cc: Christoph Lameter Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: linux-mm@kvack.org Cc: Eduard - Gabriel Munteanu LKML-Reference: <4B21F89A.7000801@cn.fujitsu.com> Signed-off-by: Ingo Molnar

slab: move struct kmem_cache to headers

2009-06-13T06:58:43Z

Move the SLAB struct kmem_cache definition to like with SLUB so kmemcheck can access ->ctor and ->flags. Cc: Ingo Molnar Cc: Christoph Lameter Cc: Andrew Morton Signed-off-by: Pekka Enberg [rebased for mainline inclusion] Signed-off-by: Vegard Nossum

tracing, kmemtrace: Separate include/trace/kmemtrace.h to kmemtrace part and tracepoint part

2009-04-12T13:22:55Z

Impact: refactor code for future changes Current kmemtrace.h is used both as header file of kmemtrace and kmem's tracepoints definition. Tracepoints' definition file may be used by other code, and should only have definition of tracepoint. We can separate include/trace/kmemtrace.h into 2 files: include/linux/kmemtrace.h: header file for kmemtrace include/trace/kmem.h: definition of kmem tracepoints Signed-off-by: Zhao Lei Acked-by: Eduard - Gabriel Munteanu Acked-by: Pekka Enberg Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Tom Zanussi LKML-Reference: <49DEE68A.5040902@cn.fujitsu.com> Signed-off-by: Ingo Molnar