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Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c44
1 files changed, 20 insertions, 24 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 43d7fc150acc..766219011aea 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -69,6 +69,7 @@
#include <net/sock.h>
#include <net/checksum.h>
#include <net/gso.h>
+#include <net/hotdata.h>
#include <net/ip6_checksum.h>
#include <net/xfrm.h>
#include <net/mpls.h>
@@ -88,15 +89,10 @@
#include "dev.h"
#include "sock_destructor.h"
-struct kmem_cache *skbuff_cache __ro_after_init;
-static struct kmem_cache *skbuff_fclone_cache __ro_after_init;
#ifdef CONFIG_SKB_EXTENSIONS
static struct kmem_cache *skbuff_ext_cache __ro_after_init;
#endif
-
-static struct kmem_cache *skb_small_head_cache __ro_after_init;
-
#define SKB_SMALL_HEAD_SIZE SKB_HEAD_ALIGN(MAX_TCP_HEADER)
/* We want SKB_SMALL_HEAD_CACHE_SIZE to not be a power of two.
@@ -349,7 +345,7 @@ static struct sk_buff *napi_skb_cache_get(void)
struct sk_buff *skb;
if (unlikely(!nc->skb_count)) {
- nc->skb_count = kmem_cache_alloc_bulk(skbuff_cache,
+ nc->skb_count = kmem_cache_alloc_bulk(net_hotdata.skbuff_cache,
GFP_ATOMIC,
NAPI_SKB_CACHE_BULK,
nc->skb_cache);
@@ -358,7 +354,7 @@ static struct sk_buff *napi_skb_cache_get(void)
}
skb = nc->skb_cache[--nc->skb_count];
- kasan_mempool_unpoison_object(skb, kmem_cache_size(skbuff_cache));
+ kasan_mempool_unpoison_object(skb, kmem_cache_size(net_hotdata.skbuff_cache));
return skb;
}
@@ -416,7 +412,7 @@ struct sk_buff *slab_build_skb(void *data)
struct sk_buff *skb;
unsigned int size;
- skb = kmem_cache_alloc(skbuff_cache, GFP_ATOMIC);
+ skb = kmem_cache_alloc(net_hotdata.skbuff_cache, GFP_ATOMIC);
if (unlikely(!skb))
return NULL;
@@ -467,7 +463,7 @@ struct sk_buff *__build_skb(void *data, unsigned int frag_size)
{
struct sk_buff *skb;
- skb = kmem_cache_alloc(skbuff_cache, GFP_ATOMIC);
+ skb = kmem_cache_alloc(net_hotdata.skbuff_cache, GFP_ATOMIC);
if (unlikely(!skb))
return NULL;
@@ -578,7 +574,7 @@ static void *kmalloc_reserve(unsigned int *size, gfp_t flags, int node,
obj_size = SKB_HEAD_ALIGN(*size);
if (obj_size <= SKB_SMALL_HEAD_CACHE_SIZE &&
!(flags & KMALLOC_NOT_NORMAL_BITS)) {
- obj = kmem_cache_alloc_node(skb_small_head_cache,
+ obj = kmem_cache_alloc_node(net_hotdata.skb_small_head_cache,
flags | __GFP_NOMEMALLOC | __GFP_NOWARN,
node);
*size = SKB_SMALL_HEAD_CACHE_SIZE;
@@ -586,7 +582,7 @@ static void *kmalloc_reserve(unsigned int *size, gfp_t flags, int node,
goto out;
/* Try again but now we are using pfmemalloc reserves */
ret_pfmemalloc = true;
- obj = kmem_cache_alloc_node(skb_small_head_cache, flags, node);
+ obj = kmem_cache_alloc_node(net_hotdata.skb_small_head_cache, flags, node);
goto out;
}
@@ -649,7 +645,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
u8 *data;
cache = (flags & SKB_ALLOC_FCLONE)
- ? skbuff_fclone_cache : skbuff_cache;
+ ? net_hotdata.skbuff_fclone_cache : net_hotdata.skbuff_cache;
if (sk_memalloc_socks() && (flags & SKB_ALLOC_RX))
gfp_mask |= __GFP_MEMALLOC;
@@ -1095,7 +1091,7 @@ static int skb_pp_frag_ref(struct sk_buff *skb)
static void skb_kfree_head(void *head, unsigned int end_offset)
{
if (end_offset == SKB_SMALL_HEAD_HEADROOM)
- kmem_cache_free(skb_small_head_cache, head);
+ kmem_cache_free(net_hotdata.skb_small_head_cache, head);
else
kfree(head);
}
@@ -1162,7 +1158,7 @@ static void kfree_skbmem(struct sk_buff *skb)
switch (skb->fclone) {
case SKB_FCLONE_UNAVAILABLE:
- kmem_cache_free(skbuff_cache, skb);
+ kmem_cache_free(net_hotdata.skbuff_cache, skb);
return;
case SKB_FCLONE_ORIG:
@@ -1183,7 +1179,7 @@ static void kfree_skbmem(struct sk_buff *skb)
if (!refcount_dec_and_test(&fclones->fclone_ref))
return;
fastpath:
- kmem_cache_free(skbuff_fclone_cache, fclones);
+ kmem_cache_free(net_hotdata.skbuff_fclone_cache, fclones);
}
void skb_release_head_state(struct sk_buff *skb)
@@ -1280,7 +1276,7 @@ static void kfree_skb_add_bulk(struct sk_buff *skb,
sa->skb_array[sa->skb_count++] = skb;
if (unlikely(sa->skb_count == KFREE_SKB_BULK_SIZE)) {
- kmem_cache_free_bulk(skbuff_cache, KFREE_SKB_BULK_SIZE,
+ kmem_cache_free_bulk(net_hotdata.skbuff_cache, KFREE_SKB_BULK_SIZE,
sa->skb_array);
sa->skb_count = 0;
}
@@ -1305,7 +1301,7 @@ kfree_skb_list_reason(struct sk_buff *segs, enum skb_drop_reason reason)
}
if (sa.skb_count)
- kmem_cache_free_bulk(skbuff_cache, sa.skb_count, sa.skb_array);
+ kmem_cache_free_bulk(net_hotdata.skbuff_cache, sa.skb_count, sa.skb_array);
}
EXPORT_SYMBOL(kfree_skb_list_reason);
@@ -1467,9 +1463,9 @@ static void napi_skb_cache_put(struct sk_buff *skb)
if (unlikely(nc->skb_count == NAPI_SKB_CACHE_SIZE)) {
for (i = NAPI_SKB_CACHE_HALF; i < NAPI_SKB_CACHE_SIZE; i++)
kasan_mempool_unpoison_object(nc->skb_cache[i],
- kmem_cache_size(skbuff_cache));
+ kmem_cache_size(net_hotdata.skbuff_cache));
- kmem_cache_free_bulk(skbuff_cache, NAPI_SKB_CACHE_HALF,
+ kmem_cache_free_bulk(net_hotdata.skbuff_cache, NAPI_SKB_CACHE_HALF,
nc->skb_cache + NAPI_SKB_CACHE_HALF);
nc->skb_count = NAPI_SKB_CACHE_HALF;
}
@@ -2066,7 +2062,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
if (skb_pfmemalloc(skb))
gfp_mask |= __GFP_MEMALLOC;
- n = kmem_cache_alloc(skbuff_cache, gfp_mask);
+ n = kmem_cache_alloc(net_hotdata.skbuff_cache, gfp_mask);
if (!n)
return NULL;
@@ -5005,7 +5001,7 @@ static void skb_extensions_init(void) {}
void __init skb_init(void)
{
- skbuff_cache = kmem_cache_create_usercopy("skbuff_head_cache",
+ net_hotdata.skbuff_cache = kmem_cache_create_usercopy("skbuff_head_cache",
sizeof(struct sk_buff),
0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC|
@@ -5013,7 +5009,7 @@ void __init skb_init(void)
offsetof(struct sk_buff, cb),
sizeof_field(struct sk_buff, cb),
NULL);
- skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
+ net_hotdata.skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
sizeof(struct sk_buff_fclones),
0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC,
@@ -5022,7 +5018,7 @@ void __init skb_init(void)
* struct skb_shared_info is located at the end of skb->head,
* and should not be copied to/from user.
*/
- skb_small_head_cache = kmem_cache_create_usercopy("skbuff_small_head",
+ net_hotdata.skb_small_head_cache = kmem_cache_create_usercopy("skbuff_small_head",
SKB_SMALL_HEAD_CACHE_SIZE,
0,
SLAB_HWCACHE_ALIGN | SLAB_PANIC,
@@ -5895,7 +5891,7 @@ void kfree_skb_partial(struct sk_buff *skb, bool head_stolen)
{
if (head_stolen) {
skb_release_head_state(skb);
- kmem_cache_free(skbuff_cache, skb);
+ kmem_cache_free(net_hotdata.skbuff_cache, skb);
} else {
__kfree_skb(skb);
}
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-02 10:49:35 +0000