From: Jiang Liu <jiang.liu@linux.intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Jiang Liu <jiang.liu@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org
Subject: [Resend Patch v4 01/16] smp, alpha: Kill SMP single function call interrupt
Date: Fri, 23 Jan 2015 13:36:40 +0800 [thread overview]
Message-ID: <1421991416-20297-2-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1421991416-20297-1-git-send-email-jiang.liu@linux.intel.com>
Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
arch/alpha/kernel/smp.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 99ac36d5de4e..2f24447fef92 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -63,7 +63,6 @@ static struct {
enum ipi_message_type {
IPI_RESCHEDULE,
IPI_CALL_FUNC,
- IPI_CALL_FUNC_SINGLE,
IPI_CPU_STOP,
};
@@ -506,7 +505,6 @@ setup_profiling_timer(unsigned int multiplier)
return -EINVAL;
}
-\f
static void
send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation)
{
@@ -552,10 +550,6 @@ handle_ipi(struct pt_regs *regs)
generic_smp_call_function_interrupt();
break;
- case IPI_CALL_FUNC_SINGLE:
- generic_smp_call_function_single_interrupt();
- break;
-
case IPI_CPU_STOP:
halt();
@@ -606,7 +600,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
void arch_send_call_function_single_ipi(int cpu)
{
- send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
+ send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC);
}
static void
--
1.7.10.4
next prev parent reply other threads:[~2015-01-23 5:34 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-23 5:36 [Resend Patch v4 00/16] Kill SMP single function call interrupt Jiang Liu
2015-01-23 5:36 ` Jiang Liu [this message]
2015-01-23 5:36 ` [Resend Patch v4 02/16] smp, ARM: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 03/16] smp, ARM64: " Jiang Liu
2015-01-23 18:10 ` Catalin Marinas
2015-01-23 5:36 ` [Resend Patch v4 04/16] smp, IA64: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 05/16] smp, m32r: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 06/16] smp, mn10300: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 07/16] smp, mn10300: Enable arch_send_call_function_ipi_mask() Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 08/16] smp, sh: Kill SMP single function call interrupt Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 09/16] smp, sparc64: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 10/16] smp, sparc: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 11/16] smp, x86, xen: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 12/16] smp, x86: " Jiang Liu
2015-01-23 8:53 ` Peter Zijlstra
2015-01-23 11:20 ` Borislav Petkov
2015-01-23 5:36 ` [Resend Patch v4 13/16] smp, tile: " Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 14/16] smp, s390: " Jiang Liu
2015-01-23 6:54 ` Heiko Carstens
2015-01-23 9:21 ` Jiang Liu
2015-01-23 9:32 ` Heiko Carstens
2015-01-23 5:36 ` [Resend Patch v4 15/16] smp: Cleanup unsued generic_smp_call_function_single_interrupt() Jiang Liu
2015-01-23 5:36 ` [Resend Patch v4 16/16] smp, trivial: Remove unused function prototype from smp_boot.h Jiang Liu
2015-01-24 19:28 ` [Resend Patch v4 00/16] Kill SMP single function call interrupt Thomas Gleixner
2015-01-26 2:13 ` Jiang Liu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1421991416-20297-2-git-send-email-jiang.liu@linux.intel.com \
--to=jiang.liu@linux.intel.com \
--cc=bp@alien8.de \
--cc=ink@jurassic.park.msu.ru \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mattst88@gmail.com \
--cc=rth@twiddle.net \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).