No need to check the support of mergeable buffer inside the recevie
loop as the whole handle_rx()_xx is in the read critical region. So
this patch move it ahead of the receiving loop.
Signed-off-by: Jason Wang jasow...@redhat.com
---
drivers/vhost/net.c |5 +++--
1 files changed, 3
Codes duplication were found between the handling of mergeable and big
buffers, so this patch tries to unify them. This could be easily done
by adding a quota to the get_rx_bufs() which is used to limit the
number of buffers it returns (for mergeable buffer, the quota is
simply UIO_MAXIOV, for big
We can use lock_sock_fast() instead of lock_sock() in order to get
speedup in peek_head_len().
Signed-off-by: Jason Wang jasow...@redhat.com
---
drivers/vhost/net.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index
On Mon, Jan 17, 2011 at 04:11:08PM +0800, Jason Wang wrote:
Codes duplication were found between the handling of mergeable and big
buffers, so this patch tries to unify them. This could be easily done
by adding a quota to the get_rx_bufs() which is used to limit the
number of buffers it
On Mon, Jan 17, 2011 at 04:10:59PM +0800, Jason Wang wrote:
No need to check the support of mergeable buffer inside the recevie
loop as the whole handle_rx()_xx is in the read critical region. So
this patch move it ahead of the receiving loop.
Signed-off-by: Jason Wang jasow...@redhat.com
Le lundi 17 janvier 2011 à 16:11 +0800, Jason Wang a écrit :
We can use lock_sock_fast() instead of lock_sock() in order to get
speedup in peek_head_len().
Signed-off-by: Jason Wang jasow...@redhat.com
---
drivers/vhost/net.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
On Mon, Jan 17, 2011 at 09:14:19AM +0100, Aurelien Jarno wrote:
fitler - filter
Cc: net...@vger.kernel.org
Cc: Michael S. Tsirkin m...@redhat.com
Signed-off-by: Aurelien Jarno aurel...@aurel32.net
Acked-by: Michael S. Tsirkin m...@redhat.com
obviously.
Cc:
On Mon, Jan 17, 2011 at 04:11:17PM +0800, Jason Wang wrote:
We can use lock_sock_fast() instead of lock_sock() in order to get
speedup in peek_head_len().
Signed-off-by: Jason Wang jasow...@redhat.com
Queued for 2.6.39, thanks everyone.
---
drivers/vhost/net.c |4 ++--
1 files
On Mon, Jan 17, 2011 at 07:37:30AM +0900, Simon Horman wrote:
On Fri, Jan 14, 2011 at 08:54:15AM +0200, Michael S. Tsirkin wrote:
On Fri, Jan 14, 2011 at 03:35:28PM +0900, Simon Horman wrote:
On Fri, Jan 14, 2011 at 06:58:18AM +0200, Michael S. Tsirkin wrote:
On Fri, Jan 14, 2011 at
On Mon, Jan 17, 2011 at 10:26:25AM +1030, Rusty Russell wrote:
On Mon, 17 Jan 2011 09:07:30 am Simon Horman wrote:
[snip]
I've been away, but what concerns me is that socket buffer limits are
bypassed in various configurations, due to skb cloning. We should probably
drop such limits
For future rework of try_to_wake_up() we'd like to push part of that
onto the CPU the task is actually going to run on, in order to do so we
need a generic callback from the existing scheduler IPI.
This patch introduces such a generic callback: scheduler_ipi() and
implements it as a NOP.
I
On Mon, 2011-01-17 at 11:26 +, Russell King - ARM Linux wrote:
On Mon, Jan 17, 2011 at 12:07:13PM +0100, Peter Zijlstra wrote:
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 42aa078..c4a570b 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@
On Mon, 2011-01-17 at 12:31 +0100, Peter Zijlstra wrote:
On Mon, 2011-01-17 at 11:26 +, Russell King - ARM Linux wrote:
Maybe remove the comment everything is done on the interrupt return path
as with this function call, that is no longer the case.
(Removed am33, m32r-ka, m32r,
On Mon, 17 Jan 2011 12:07:13 +0100
Peter Zijlstra pet...@infradead.org wrote:
I visited existing smp_send_reschedule() implementations and tried to
add a call to scheduler_ipi() in their handler part, but esp. for MIPS
I'm not quite sure I actually got all of them.
diff --git
On Tue, Nov 16, 2010 at 01:08:44PM -0800, Jeremy Fitzhardinge wrote:
From: Jeremy Fitzhardinge jeremy.fitzhardi...@citrix.com
Maintain a flag in both LSBs of the ticket lock which indicates whether
anyone is in the lock slowpath and may need kicking when the current
holder unlocks. The
On Mon, 2011-01-17 at 14:49 -0500, Mike Frysinger wrote:
On Mon, Jan 17, 2011 at 06:07, Peter Zijlstra wrote:
Also, while reading through all this, I noticed the blackfin SMP code
looks to be broken, it simply discards any IPI when low on memory.
not really. see changelog of commit
On Mon, 2011-01-17 at 12:07 +0100, Peter Zijlstra wrote:
For future rework of try_to_wake_up() we'd like to push part of that
onto the CPU the task is actually going to run on, in order to do so we
need a generic callback from the existing scheduler IPI.
This patch introduces such a generic
On Tue, 2011-01-18 at 07:31 +1100, Benjamin Herrenschmidt wrote:
Beware of false positive, I've used fake reschedule IPIs in the past
for other things (like kicking a CPU out of sleep state for unrelated
reasons). Nothing that I know that is upstream today but some of that
might come back.
On Mon, Jan 17, 2011 at 12:07:13PM +0100, Peter Zijlstra wrote:
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 42aa078..c4a570b 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -587,6 +587,7 @@ handle_ipi(struct pt_regs *regs)
case
On Mon, Jan 17, 2011 at 12:41:49PM +0100, Peter Zijlstra wrote:
===
--- linux-2.6.orig/arch/arm/kernel/smp.c
+++ linux-2.6/arch/arm/kernel/smp.c
@@ -575,10 +575,7 @@ asmlinkage void __exception do_IPI(struc
On 1/17/2011 6:41 AM, Peter Zijlstra wrote:
Index: linux-2.6/arch/tile/kernel/smp.c
===
--- linux-2.6.orig/arch/tile/kernel/smp.c
+++ linux-2.6/arch/tile/kernel/smp.c
@@ -184,12 +184,8 @@ void flush_icache_range(unsigned long st
On Mon, Jan 17, 2011 at 12:41:49PM +0100, Peter Zijlstra wrote:
Index: linux-2.6/arch/cris/arch-v32/kernel/smp.c
===
--- linux-2.6.orig/arch/cris/arch-v32/kernel/smp.c
+++ linux-2.6/arch/cris/arch-v32/kernel/smp.c
@@ -340,15
On 01/17/2011 03:07 AM, Peter Zijlstra wrote:
For future rework of try_to_wake_up() we'd like to push part of that
onto the CPU the task is actually going to run on, in order to do so we
need a generic callback from the existing scheduler IPI.
This patch introduces such a generic callback:
On Mon, Jan 17, 2011 at 06:07, Peter Zijlstra wrote:
Also, while reading through all this, I noticed the blackfin SMP code
looks to be broken, it simply discards any IPI when low on memory.
not really. see changelog of commit 73a400646b8e26615f3ef1a0a4bc0cd0d5bd284c.
-mike
Michael S. Tsirkin writes:
On Mon, Jan 17, 2011 at 04:11:08PM +0800, Jason Wang wrote:
Codes duplication were found between the handling of mergeable and big
buffers, so this patch tries to unify them. This could be easily done
by adding a quota to the get_rx_bufs() which is used to
Michael S. Tsirkin writes:
On Mon, Jan 17, 2011 at 04:10:59PM +0800, Jason Wang wrote:
No need to check the support of mergeable buffer inside the recevie
loop as the whole handle_rx()_xx is in the read critical region. So
this patch move it ahead of the receiving loop.
On Tue, Jan 18, 2011 at 12:26:17PM +0800, Jason Wang wrote:
Michael S. Tsirkin writes:
On Mon, Jan 17, 2011 at 04:10:59PM +0800, Jason Wang wrote:
No need to check the support of mergeable buffer inside the recevie
loop as the whole handle_rx()_xx is in the read critical region. So
On Tue, Jan 18, 2011 at 11:05:33AM +0800, Jason Wang wrote:
Michael S. Tsirkin writes:
On Mon, Jan 17, 2011 at 04:11:08PM +0800, Jason Wang wrote:
Codes duplication were found between the handling of mergeable and big
buffers, so this patch tries to unify them. This could be easily
Michael S. Tsirkin writes:
On Tue, Jan 18, 2011 at 11:05:33AM +0800, Jason Wang wrote:
Michael S. Tsirkin writes:
On Mon, Jan 17, 2011 at 04:11:08PM +0800, Jason Wang wrote:
Codes duplication were found between the handling of mergeable and big
buffers, so this patch tries to
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