From: Paul Mackerras <paulus@samba.org>
To: akpm@osdl.org
Cc: nathanl@austin.ibm.com, anton@samba.org, linux-kernel@vger.kernel.org
Subject: [PATCH] PPC64 (3/3) Allocate irqstacks only for possible cpus
Date: Mon, 30 Aug 2004 15:07:30 +1000 [thread overview]
Message-ID: <16690.46610.830797.583601@cargo.ozlabs.ibm.com> (raw)
With earlier setup of cpu_possible_map the number of irqstacks shrinks
from NR_CPUS to the number of possible cpus.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff -urN akpm-29aug/arch/ppc64/kernel/irq.c akpm/arch/ppc64/kernel/irq.c
--- akpm-29aug/arch/ppc64/kernel/irq.c 2004-08-30 10:55:36.000000000 +1000
+++ akpm/arch/ppc64/kernel/irq.c 2004-08-30 15:02:33.104245224 +1000
@@ -929,7 +929,7 @@
struct thread_info *tp;
int i;
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
memset((void *)softirq_ctx[i], 0, THREAD_SIZE);
tp = softirq_ctx[i];
tp->cpu = i;
diff -urN akpm-29aug/arch/ppc64/kernel/setup.c akpm/arch/ppc64/kernel/setup.c
--- akpm-29aug/arch/ppc64/kernel/setup.c 2004-08-30 15:02:42.393296512 +1000
+++ akpm/arch/ppc64/kernel/setup.c 2004-08-30 15:02:33.069250544 +1000
@@ -701,7 +701,7 @@
int i;
/* interrupt stacks must be under 256MB, we cannot afford to take SLB misses on them */
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
softirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
THREAD_SIZE, 0x10000000));
hardirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
reply other threads:[~2004-08-30 5:07 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=16690.46610.830797.583601@cargo.ozlabs.ibm.com \
--to=paulus@samba.org \
--cc=akpm@osdl.org \
--cc=anton@samba.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nathanl@austin.ibm.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
all inboxes | Powered by JetHome®