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From: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>
To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: "David Miller" <davem@davemloft.net>,
	"Arnaldo Carvalho de Melo" <acme@redhat.com>,
	"Ilpo J�rvinen" <ilpo.jarvinen@helsinki.fi>
Subject: [RFC PATCH 3/8] [NET]: uninline dev_alloc_skb, de-bloats a lot
Date: Wed, 20 Feb 2008 15:47:13 +0200	[thread overview]
Message-ID: <1203515238-22848-4-git-send-email-ilpo.jarvinen@helsinki.fi> (raw)
In-Reply-To: <1203515238-22848-3-git-send-email-ilpo.jarvinen@helsinki.fi>

-23668  392 funcs, 104 +, 23772 -, diff: -23668 --- dev_alloc_skb

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
---
 include/linux/skbuff.h |   17 +----------------
 net/core/skbuff.c      |   18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a9f8f15..df3cce2 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1269,22 +1269,7 @@ static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
 	return skb;
 }
 
-/**
- *	dev_alloc_skb - allocate an skbuff for receiving
- *	@length: length to allocate
- *
- *	Allocate a new &sk_buff and assign it a usage count of one. The
- *	buffer has unspecified headroom built in. Users should allocate
- *	the headroom they think they need without accounting for the
- *	built in space. The built in space is used for optimisations.
- *
- *	%NULL is returned if there is no free memory. Although this function
- *	allocates memory it can be called from an interrupt.
- */
-static inline struct sk_buff *dev_alloc_skb(unsigned int length)
-{
-	return __dev_alloc_skb(length, GFP_ATOMIC);
-}
+extern struct sk_buff *dev_alloc_skb(unsigned int length);
 
 extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
 		unsigned int length, gfp_t gfp_mask);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 14f462b..081bffb 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -263,6 +263,24 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
 	return skb;
 }
 
+/**
+ *	dev_alloc_skb - allocate an skbuff for receiving
+ *	@length: length to allocate
+ *
+ *	Allocate a new &sk_buff and assign it a usage count of one. The
+ *	buffer has unspecified headroom built in. Users should allocate
+ *	the headroom they think they need without accounting for the
+ *	built in space. The built in space is used for optimisations.
+ *
+ *	%NULL is returned if there is no free memory. Although this function
+ *	allocates memory it can be called from an interrupt.
+ */
+struct sk_buff *dev_alloc_skb(unsigned int length)
+{
+	return __dev_alloc_skb(length, GFP_ATOMIC);
+}
+EXPORT_SYMBOL(dev_alloc_skb);
+
 static void skb_drop_list(struct sk_buff **listp)
 {
 	struct sk_buff *list = *listp;
-- 
1.5.2.2


  reply	other threads:[~2008-02-20 13:48 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-20 13:47 [RFC PATCH 0/8]: uninline & uninline Ilpo Järvinen
2008-02-20 13:47 ` [RFC PATCH 1/8] [NET]: uninline skb_put, de-bloats a lot Ilpo Järvinen
2008-02-20 13:47   ` [RFC PATCH 2/8] [NET]: uninline skb_pull, " Ilpo Järvinen
2008-02-20 13:47     ` Ilpo Järvinen [this message]
2008-02-20 13:47       ` [RFC PATCH 4/8] [NET]: uninline skb_push, " Ilpo Järvinen
2008-02-20 13:47         ` [RFC PATCH 5/8] [NET]: uninline dst_release Ilpo Järvinen
2008-02-20 13:47           ` [RFC PATCH 6/8] [NET]: uninline skb_trim, de-bloats Ilpo Järvinen
2008-02-20 13:47             ` [RFC PATCH 7/8] [SCTP]: uninline sctp_add_cmd_sf Ilpo Järvinen
2008-02-20 13:47               ` [RFC PATCH 8/8] Jhash in too big for inlining, move under lib/ Ilpo Järvinen
2008-02-23  8:02                 ` Andrew Morton
2008-02-23 10:05                   ` Ilpo Järvinen
2008-02-23 18:21                     ` Andrew Morton
2008-02-23 13:06                   ` Andi Kleen
2008-02-20 22:16               ` [RFC PATCH 7/8] [SCTP]: uninline sctp_add_cmd_sf Vlad Yasevich
2008-02-20 22:34                 ` Ilpo Järvinen
2008-02-21 15:27                   ` Vlad Yasevich
2008-02-20 16:19       ` [RFC PATCH 3/8] [NET]: uninline dev_alloc_skb, de-bloats a lot Jan Engelhardt
2008-02-20 16:27         ` Patrick McHardy
2008-02-20 16:30           ` Jan Engelhardt
2008-02-20 22:18             ` Ilpo Järvinen
2008-03-12 15:27               ` Ilpo Järvinen
2008-02-20 13:54   ` [RFC PATCH 1/8] [NET]: uninline skb_put, " Patrick McHardy
2008-02-20 13:57   ` Eric Dumazet
2008-02-23  8:02 ` [RFC PATCH 0/8]: uninline & uninline Andrew Morton
2008-02-23 10:11   ` Ilpo Järvinen
2008-02-23 13:15   ` Andi Kleen
2008-02-23 18:06     ` Ilpo Järvinen
2008-02-23 18:55     ` Andrew Morton
2008-02-23 19:58       ` Hua Zhong
2008-02-23 21:02         ` Andi Kleen
2008-02-27 19:08       ` profile-likely patch (was " Valdis.Kletnieks

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