From: Andrea Arcangeli <andrea@cpushare.com>
To: linux-mm@kvack.org
Subject: [PATCH 08 of 13] stop useless vm trashing while we wait the TIF_MEMDIE task to exit
Date: Tue, 08 Jan 2008 08:50:39 +0100 [thread overview]
Message-ID: <be951f4c07326327719a.1199778639@v2.random> (raw)
In-Reply-To: <patchbomb.1199778631@v2.random>
# HG changeset patch
# User Andrea Arcangeli <andrea@suse.de>
# Date 1199470022 -3600
# Node ID be951f4c07326327719ad105f14be41296fcf753
# Parent ee9691f08d054949b7718cff94c4f132d97626de
stop useless vm trashing while we wait the TIF_MEMDIE task to exit
There's no point in trying to free memory if we're oom.
Signed-off-by: Andrea Arcangeli <andrea@suse.de>
diff --git a/mm/vmscan.c b/mm/vmscan.c
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1129,6 +1129,13 @@ static unsigned long shrink_zone(int pri
nr_inactive = 0;
while (nr_active || nr_inactive) {
+ if (unlikely(zone_is_oom_locked(zone))) {
+ if (!test_thread_flag(TIF_MEMDIE))
+ /* get out of the way */
+ schedule_timeout_interruptible(1);
+ else
+ break;
+ }
if (nr_active) {
nr_to_scan = min(nr_active,
(unsigned long)sc->swap_cluster_max);
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2008-01-08 7:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-08 7:50 [PATCH 00 of 13] oom deadlock fixes # try 2 Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 01 of 13] limit shrink zone scanning Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 02 of 13] avoid oom deadlock in nfs_create_request Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 03 of 13] prevent oom deadlocks during read/write operations Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 04 of 13] avoid selecting already killed tasks Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 05 of 13] reduce the probability of an OOM livelock Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 06 of 13] balance_pgdat doesn't return the number of pages freed Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 07 of 13] don't depend on PF_EXITING tasks to go away Andrea Arcangeli
2008-01-08 7:50 ` Andrea Arcangeli [this message]
2008-01-08 7:50 ` [PATCH 09 of 13] oom select should only take rss into account Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 10 of 13] limit reclaim if enough pages have been freed Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 11 of 13] not-wait-memdie Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 12 of 13] gfp-repeat stop with TIF_MEMDIE Andrea Arcangeli
2008-01-08 7:50 ` [PATCH 13 of 13] congestion wait Andrea Arcangeli
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=be951f4c07326327719a.1199778639@v2.random \
--to=andrea@cpushare.com \
--cc=linux-mm@kvack.org \
/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