From: Jakub Kicinski <kuba@kernel•org>
To: davem@davemloft•net
Cc: netdev@vger•kernel.org, edumazet@google•com, pabeni@redhat•com,
Jakub Kicinski <kuba@kernel•org>
Subject: [PATCH net-next] net: skbuff: update and rename __kfree_skb_defer()
Date: Wed, 19 Apr 2023 19:00:05 -0700 [thread overview]
Message-ID: <20230420020005.815854-1-kuba@kernel.org> (raw)
__kfree_skb_defer() uses the old naming where "defer" meant
slab bulk free/alloc APIs. In the meantime we also made
__kfree_skb_defer() feed the per-NAPI skb cache, which
implies bulk APIs. So take away the 'defer' and add 'napi'.
While at it add a drop reason. This only matters on the
tx_action path, if the skb has a frag_list. But getting
rid of a SKB_DROP_REASON_NOT_SPECIFIED seems like a net
benefit so why not.
Signed-off-by: Jakub Kicinski <kuba@kernel•org>
---
include/linux/skbuff.h | 2 +-
net/core/dev.c | 3 ++-
net/core/gro.c | 2 +-
net/core/skbuff.c | 4 ++--
4 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5f120bbab9da..6a77652ddd7e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3252,7 +3252,7 @@ static inline struct sk_buff *napi_alloc_skb(struct napi_struct *napi,
void napi_consume_skb(struct sk_buff *skb, int budget);
void napi_skb_free_stolen_head(struct sk_buff *skb);
-void __kfree_skb_defer(struct sk_buff *skb);
+void __napi_kfree_skb(struct sk_buff *skb, enum skb_drop_reason reason);
/**
* __dev_alloc_pages - allocate page for network Rx
diff --git a/net/core/dev.c b/net/core/dev.c
index 3fc4dba71f9d..1551aabac343 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5040,7 +5040,8 @@ static __latent_entropy void net_tx_action(struct softirq_action *h)
if (skb->fclone != SKB_FCLONE_UNAVAILABLE)
__kfree_skb(skb);
else
- __kfree_skb_defer(skb);
+ __napi_kfree_skb(skb,
+ get_kfree_skb_cb(skb)->reason);
}
}
diff --git a/net/core/gro.c b/net/core/gro.c
index a606705a0859..2d84165cb4f1 100644
--- a/net/core/gro.c
+++ b/net/core/gro.c
@@ -633,7 +633,7 @@ static gro_result_t napi_skb_finish(struct napi_struct *napi,
else if (skb->fclone != SKB_FCLONE_UNAVAILABLE)
__kfree_skb(skb);
else
- __kfree_skb_defer(skb);
+ __napi_kfree_skb(skb, SKB_CONSUMED);
break;
case GRO_HELD:
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 768f9d04911f..8764653bede7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1226,9 +1226,9 @@ static void napi_skb_cache_put(struct sk_buff *skb)
}
}
-void __kfree_skb_defer(struct sk_buff *skb)
+void __napi_kfree_skb(struct sk_buff *skb, enum skb_drop_reason reason)
{
- skb_release_all(skb, SKB_DROP_REASON_NOT_SPECIFIED, true);
+ skb_release_all(skb, reason, true);
napi_skb_cache_put(skb);
}
--
2.39.2
next reply other threads:[~2023-04-20 2:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-20 2:00 Jakub Kicinski [this message]
2023-04-20 15:06 ` [PATCH net-next] net: skbuff: update and rename __kfree_skb_defer() Alexander Lobakin
2023-04-21 2:50 ` patchwork-bot+netdevbpf
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