From: Rik van Riel <riel@conectiva.com.br>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Arjan van de Ven <arjanv@redhat.com>, linux-mm@kvack.org
Subject: [PATCH] 9/4 -ac to newer rmap
Date: Wed, 13 Nov 2002 12:50:02 -0200 [thread overview]
Message-ID: <20021113145002Z80365-18062+19@imladris.surriel.com> (raw)
No need to check PageSwapCache(page) twice in a row.
(ObWork: my patches are sponsored by Conectiva, Inc)
--- linux-2.4.19/mm/page_io.c 2002-11-13 08:48:31.000000000 -0200
+++ linux-2.4-rmap/mm/page_io.c 2002-11-13 12:10:46.000000000 -0200
@@ -87,7 +87,6 @@ static int rw_swap_page_base(int rw, swp
* - it's marked as being swap-cache
* - it's associated with the swap inode
*/
-
void rw_swap_page(int rw, struct page *page)
{
swp_entry_t entry;
@@ -98,8 +97,6 @@ void rw_swap_page(int rw, struct page *p
PAGE_BUG(page);
if (!PageSwapCache(page))
PAGE_BUG(page);
- if (page->mapping != &swapper_space)
- PAGE_BUG(page);
if (!rw_swap_page_base(rw, entry, page))
UnlockPage(page);
}
@@ -115,8 +112,6 @@ void rw_swap_page_nolock(int rw, swp_ent
if (!PageLocked(page))
PAGE_BUG(page);
- if (PageSwapCache(page))
- PAGE_BUG(page);
if (page->mapping)
PAGE_BUG(page);
/* needs sync_page to wait I/O completation */
--
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reply other threads:[~2002-11-13 14:50 UTC|newest]
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