From: William Lee Irwin III <wli@holomorphy.com>
To: linux-mm@kvack.org
Subject: [4/13] use __GFP_NOKILL in mempool_alloc()
Date: Wed, 25 Sep 2002 22:42:38 -0700 [thread overview]
Message-ID: <20020926054238.GK22942@holomorphy.com> (raw)
It is permissible to perform mempool allocations with __GFP_FS.
While no current caller does so, the following prevents pool->alloc()
from invoking the OOM killer when the request is serviceable by just
waiting on the mempool.
diff -urN linux-2.5.33/mm/mempool.c linux-2.5.33-mm5/mm/mempool.c
--- linux-2.5.33/mm/mempool.c 2002-09-04 04:02:00.000000000 -0700
+++ linux-2.5.33-mm5/mm/mempool.c 2002-09-08 19:52:51.000000000 -0700
@@ -186,8 +186,12 @@
void *element;
unsigned long flags;
DEFINE_WAIT(wait);
- int gfp_nowait = gfp_mask & ~(__GFP_WAIT | __GFP_IO);
+ int gfp_nowait;
int pf_flags = current->flags;
+
+ gfp_mask |= __GFP_NOKILL;
+
+ gfp_nowait = gfp_mask & ~(__GFP_WAIT | __GFP_IO | __GFP_NOKILL);
repeat_alloc:
current->flags |= PF_NOWARN;
--
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/
reply other threads:[~2002-09-26 5:42 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=20020926054238.GK22942@holomorphy.com \
--to=wli@holomorphy.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