diff options
Diffstat (limited to 'target/linux/generic')
| -rw-r--r-- | target/linux/generic/pending-4.14/650-net-use-bulk-free-in-kfree_skb_list.patch | 61 | ||||
| -rw-r--r-- | target/linux/generic/pending-4.19/650-net-use-bulk-free-in-kfree_skb_list.patch | 61 |
2 files changed, 0 insertions, 122 deletions
diff --git a/target/linux/generic/pending-4.14/650-net-use-bulk-free-in-kfree_skb_list.patch b/target/linux/generic/pending-4.14/650-net-use-bulk-free-in-kfree_skb_list.patch deleted file mode 100644 index 1d1a6433d9..0000000000 --- a/target/linux/generic/pending-4.14/650-net-use-bulk-free-in-kfree_skb_list.patch +++ /dev/null @@ -1,61 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Sat, 23 Mar 2019 18:26:10 +0100 -Subject: [PATCH] net: use bulk free in kfree_skb_list - -Since we're freeing multiple skbs, we might as well use bulk free to save a -few cycles. Use the same conditions for bulk free as in napi_consume_skb. - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/net/core/skbuff.c -+++ b/net/core/skbuff.c -@@ -666,12 +666,44 @@ EXPORT_SYMBOL(kfree_skb); - - void kfree_skb_list(struct sk_buff *segs) - { -- while (segs) { -- struct sk_buff *next = segs->next; -+ struct sk_buff *next = segs; -+ void *skbs[16]; -+ int n_skbs = 0; - -- kfree_skb(segs); -- segs = next; -+ while ((segs = next) != NULL) { -+ next = segs->next; -+ -+ if (segs->fclone != SKB_FCLONE_UNAVAILABLE) { -+ kfree_skb(segs); -+ continue; -+ } -+ -+ if (!skb_unref(segs)) -+ continue; -+ -+ trace_kfree_skb(segs, __builtin_return_address(0)); -+ -+ /* drop skb->head and call any destructors for packet */ -+ skb_release_all(segs); -+ -+#ifdef CONFIG_SLUB -+ /* SLUB writes into objects when freeing */ -+ prefetchw(segs); -+#endif -+ -+ skbs[n_skbs++] = segs; -+ -+ if (n_skbs < ARRAY_SIZE(skbs)) -+ continue; -+ -+ kmem_cache_free_bulk(skbuff_head_cache, n_skbs, skbs); -+ n_skbs = 0; - } -+ -+ if (!n_skbs) -+ return; -+ -+ kmem_cache_free_bulk(skbuff_head_cache, n_skbs, skbs); - } - EXPORT_SYMBOL(kfree_skb_list); - diff --git a/target/linux/generic/pending-4.19/650-net-use-bulk-free-in-kfree_skb_list.patch b/target/linux/generic/pending-4.19/650-net-use-bulk-free-in-kfree_skb_list.patch deleted file mode 100644 index 1d1a6433d9..0000000000 --- a/target/linux/generic/pending-4.19/650-net-use-bulk-free-in-kfree_skb_list.patch +++ /dev/null @@ -1,61 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Sat, 23 Mar 2019 18:26:10 +0100 -Subject: [PATCH] net: use bulk free in kfree_skb_list - -Since we're freeing multiple skbs, we might as well use bulk free to save a -few cycles. Use the same conditions for bulk free as in napi_consume_skb. - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/net/core/skbuff.c -+++ b/net/core/skbuff.c -@@ -666,12 +666,44 @@ EXPORT_SYMBOL(kfree_skb); - - void kfree_skb_list(struct sk_buff *segs) - { -- while (segs) { -- struct sk_buff *next = segs->next; -+ struct sk_buff *next = segs; -+ void *skbs[16]; -+ int n_skbs = 0; - -- kfree_skb(segs); -- segs = next; -+ while ((segs = next) != NULL) { -+ next = segs->next; -+ -+ if (segs->fclone != SKB_FCLONE_UNAVAILABLE) { -+ kfree_skb(segs); -+ continue; -+ } -+ -+ if (!skb_unref(segs)) -+ continue; -+ -+ trace_kfree_skb(segs, __builtin_return_address(0)); -+ -+ /* drop skb->head and call any destructors for packet */ -+ skb_release_all(segs); -+ -+#ifdef CONFIG_SLUB -+ /* SLUB writes into objects when freeing */ -+ prefetchw(segs); -+#endif -+ -+ skbs[n_skbs++] = segs; -+ -+ if (n_skbs < ARRAY_SIZE(skbs)) -+ continue; -+ -+ kmem_cache_free_bulk(skbuff_head_cache, n_skbs, skbs); -+ n_skbs = 0; - } -+ -+ if (!n_skbs) -+ return; -+ -+ kmem_cache_free_bulk(skbuff_head_cache, n_skbs, skbs); - } - EXPORT_SYMBOL(kfree_skb_list); - |