From: Andrew Morton <akpm@zip.com.au>
To: lkml <linux-kernel@vger.kernel.org>
Subject: aa-160-lru_release_check
Date: Tue, 19 Mar 2002 20:01:20 -0800 [thread overview]
Message-ID: <3C980990.1C6B232A@zip.com.au> (raw)
Hugh's much-discussed check for releasing pages which are still on the LRU.
=====================================
--- 2.4.19-pre3/mm/page_alloc.c~aa-160-lru_release_check Tue Mar 19 19:49:02 2002
+++ 2.4.19-pre3-akpm/mm/page_alloc.c Tue Mar 19 19:49:02 2002
@@ -102,8 +102,11 @@ static void __free_pages_ok (struct page
/* Yes, think what happens when other parts of the kernel take
* a reference to a page in order to pin it for io. -ben
*/
- if (PageLRU(page))
+ if (PageLRU(page)) {
+ if (unlikely(in_interrupt()))
+ BUG();
lru_cache_del(page);
+ }
if (page->buffers)
BUG();
-
next reply other threads:[~2002-03-20 4:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-20 4:01 Andrew Morton [this message]
2002-03-20 16:09 ` aa-160-lru_release_check Adrian Bunk
2002-03-20 19:16 ` aa-160-lru_release_check Mike Fedyk
2002-03-20 19:28 ` aa-160-lru_release_check Andrew Morton
2002-03-20 19:38 ` aa-160-lru_release_check Jeff Garzik
2002-03-20 20:02 ` aa-160-lru_release_check Dave Jones
2002-03-20 20:42 ` aa-160-lru_release_check Robert Love
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