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| author | Alexey Dobriyan | 2018-04-06 01:21:31 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2018-04-06 06:36:24 +0200 |
| commit | 7bbdb81ee3de73f2381ceec1bbee831f4c913b5c (patch) | |
| tree | 6a48fc40f7f359fc2fb6d10776514ff05576bb07 | |
| parent | kasan: make kasan_cache_create() work with 32-bit slab cache sizes (diff) | |
| download | kernel-qcow2-linux-7bbdb81ee3de73f2381ceec1bbee831f4c913b5c.tar.gz kernel-qcow2-linux-7bbdb81ee3de73f2381ceec1bbee831f4c913b5c.tar.xz kernel-qcow2-linux-7bbdb81ee3de73f2381ceec1bbee831f4c913b5c.zip | |
slab: make usercopy region 32-bit
If kmem case sizes are 32-bit, then usecopy region should be too.
Link: http://lkml.kernel.org/r/20180305200730.15812-21-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/slab.h | 2 | ||||
| -rw-r--r-- | include/linux/slab_def.h | 4 | ||||
| -rw-r--r-- | include/linux/slub_def.h | 4 | ||||
| -rw-r--r-- | include/net/sock.h | 4 | ||||
| -rw-r--r-- | mm/slab.h | 4 | ||||
| -rw-r--r-- | mm/slab_common.c | 7 | ||||
| -rw-r--r-- | mm/slub.c | 2 |
7 files changed, 14 insertions, 13 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h index d36e8f03730e..04402c637171 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -143,7 +143,7 @@ struct kmem_cache *kmem_cache_create(const char *name, unsigned int size, struct kmem_cache *kmem_cache_create_usercopy(const char *name, unsigned int size, unsigned int align, slab_flags_t flags, - size_t useroffset, size_t usersize, + unsigned int useroffset, unsigned int usersize, void (*ctor)(void *)); void kmem_cache_destroy(struct kmem_cache *); int kmem_cache_shrink(struct kmem_cache *); diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h index 7385547c04b1..d9228e4d0320 100644 --- a/include/linux/slab_def.h +++ b/include/linux/slab_def.h @@ -85,8 +85,8 @@ struct kmem_cache { unsigned int *random_seq; #endif - size_t useroffset; /* Usercopy region offset */ - size_t usersize; /* Usercopy region size */ + unsigned int useroffset; /* Usercopy region offset */ + unsigned int usersize; /* Usercopy region size */ struct kmem_cache_node *node[MAX_NUMNODES]; }; diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index bc02fd3a8ccf..623d6ba92036 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -137,8 +137,8 @@ struct kmem_cache { struct kasan_cache kasan_info; #endif - size_t useroffset; /* Usercopy region offset */ - size_t usersize; /* Usercopy region size */ + unsigned int useroffset; /* Usercopy region offset */ + unsigned int usersize; /* Usercopy region size */ struct kmem_cache_node *node[MAX_NUMNODES]; }; diff --git a/include/net/sock.h b/include/net/sock.h index 49bd2c1796b0..74d725fdbe0f 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1114,8 +1114,8 @@ struct proto { struct kmem_cache *slab; unsigned int obj_size; slab_flags_t slab_flags; - size_t useroffset; /* Usercopy region offset */ - size_t usersize; /* Usercopy region size */ + unsigned int useroffset; /* Usercopy region offset */ + unsigned int usersize; /* Usercopy region size */ struct percpu_counter *orphan_count; diff --git a/mm/slab.h b/mm/slab.h index 8f1072f49285..e8981e811c45 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -22,8 +22,8 @@ struct kmem_cache { unsigned int size; /* The aligned/padded/added on size */ unsigned int align; /* Alignment as calculated */ slab_flags_t flags; /* Active flags on the slab */ - size_t useroffset; /* Usercopy region offset */ - size_t usersize; /* Usercopy region size */ + unsigned int useroffset;/* Usercopy region offset */ + unsigned int usersize; /* Usercopy region size */ const char *name; /* Slab name for sysfs */ int refcount; /* Use counter */ void (*ctor)(void *); /* Called on object slot creation */ diff --git a/mm/slab_common.c b/mm/slab_common.c index 3e07b1fb22bd..01224cb90080 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -380,8 +380,8 @@ struct kmem_cache *find_mergeable(unsigned int size, unsigned int align, static struct kmem_cache *create_cache(const char *name, unsigned int object_size, unsigned int size, unsigned int align, - slab_flags_t flags, size_t useroffset, - size_t usersize, void (*ctor)(void *), + slab_flags_t flags, unsigned int useroffset, + unsigned int usersize, void (*ctor)(void *), struct mem_cgroup *memcg, struct kmem_cache *root_cache) { struct kmem_cache *s; @@ -454,7 +454,8 @@ out_free_cache: struct kmem_cache * kmem_cache_create_usercopy(const char *name, unsigned int size, unsigned int align, - slab_flags_t flags, size_t useroffset, size_t usersize, + slab_flags_t flags, + unsigned int useroffset, unsigned int usersize, void (*ctor)(void *)) { struct kmem_cache *s = NULL; diff --git a/mm/slub.c b/mm/slub.c index dfead847961c..a10cf661cdae 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5081,7 +5081,7 @@ SLAB_ATTR_RO(cache_dma); static ssize_t usersize_show(struct kmem_cache *s, char *buf) { - return sprintf(buf, "%zu\n", s->usersize); + return sprintf(buf, "%u\n", s->usersize); } SLAB_ATTR_RO(usersize); |