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| author | Hyeonggon Yoo <42.hyeyoo@gmail.com> | 2022-08-17 19:18:24 +0900 |
|---|---|---|
| committer | Vlastimil Babka <vbabka@suse.cz> | 2022-09-01 11:44:26 +0200 |
| commit | 2c1d697fb8ba6d2d44f914d4268ae1ccdf025f1b (patch) | |
| tree | a2e3b945b6a96e59c319083739023ba52e932fcb /mm/slab_common.c | |
| parent | 11e9734bcb6a7361943f993eba4e97f5812120d8 (diff) | |
| download | linux-rpi-2c1d697fb8ba6d2d44f914d4268ae1ccdf025f1b.tar.gz linux-rpi-2c1d697fb8ba6d2d44f914d4268ae1ccdf025f1b.tar.bz2 linux-rpi-2c1d697fb8ba6d2d44f914d4268ae1ccdf025f1b.zip | |
mm/slab_common: drop kmem_alloc & avoid dereferencing fields when not using
Drop kmem_alloc event class, and define kmalloc and kmem_cache_alloc
using TRACE_EVENT() macro.
And then this patch does:
- Do not pass pointer to struct kmem_cache to trace_kmalloc.
gfp flag is enough to know if it's accounted or not.
- Avoid dereferencing s->object_size and s->size when not using kmem_cache_alloc event.
- Avoid dereferencing s->name in when not using kmem_cache_free event.
- Adjust s->size to SLOB_UNITS(s->size) * SLOB_UNIT in SLOB
Cc: Vasily Averin <vasily.averin@linux.dev>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Diffstat (limited to 'mm/slab_common.c')
| -rw-r--r-- | mm/slab_common.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 3d7ad992ece1..ad4c36fb697c 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -907,7 +907,7 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller if (unlikely(size > KMALLOC_MAX_CACHE_SIZE)) { ret = __kmalloc_large_node(size, flags, node); - trace_kmalloc(_RET_IP_, ret, NULL, size, + trace_kmalloc(_RET_IP_, ret, size, PAGE_SIZE << get_order(size), flags, node); return ret; } @@ -919,7 +919,7 @@ void *__do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller ret = __kmem_cache_alloc_node(s, flags, node, size, caller); ret = kasan_kmalloc(s, ret, size, flags); - trace_kmalloc(_RET_IP_, ret, s, size, s->size, flags, node); + trace_kmalloc(_RET_IP_, ret, size, s->size, flags, node); return ret; } @@ -1005,7 +1005,7 @@ void *kmalloc_trace(struct kmem_cache *s, gfp_t gfpflags, size_t size) void *ret = __kmem_cache_alloc_node(s, gfpflags, NUMA_NO_NODE, size, _RET_IP_); - trace_kmalloc(_RET_IP_, ret, s, size, s->size, gfpflags, NUMA_NO_NODE); + trace_kmalloc(_RET_IP_, ret, size, s->size, gfpflags, NUMA_NO_NODE); ret = kasan_kmalloc(s, ret, size, gfpflags); return ret; @@ -1017,7 +1017,7 @@ void *kmalloc_node_trace(struct kmem_cache *s, gfp_t gfpflags, { void *ret = __kmem_cache_alloc_node(s, gfpflags, node, size, _RET_IP_); - trace_kmalloc(_RET_IP_, ret, s, size, s->size, gfpflags, node); + trace_kmalloc(_RET_IP_, ret, size, s->size, gfpflags, node); ret = kasan_kmalloc(s, ret, size, gfpflags); return ret; @@ -1072,8 +1072,8 @@ void *kmalloc_large(size_t size, gfp_t flags) { void *ret = __kmalloc_large_node(size, flags, NUMA_NO_NODE); - trace_kmalloc(_RET_IP_, ret, NULL, size, - PAGE_SIZE << get_order(size), flags, NUMA_NO_NODE); + trace_kmalloc(_RET_IP_, ret, size, PAGE_SIZE << get_order(size), + flags, NUMA_NO_NODE); return ret; } EXPORT_SYMBOL(kmalloc_large); @@ -1082,8 +1082,8 @@ void *kmalloc_large_node(size_t size, gfp_t flags, int node) { void *ret = __kmalloc_large_node(size, flags, node); - trace_kmalloc(_RET_IP_, ret, NULL, size, - PAGE_SIZE << get_order(size), flags, node); + trace_kmalloc(_RET_IP_, ret, size, PAGE_SIZE << get_order(size), + flags, node); return ret; } EXPORT_SYMBOL(kmalloc_large_node); |