linux-kernel - [PATCH 1/17] cramfs: use read_mapping

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Message-Id: <20070412024938.27380.87060.patchbomb.py@localhost>
Date:	Wed, 11 Apr 2007 19:49:38 -0700
From:	Nate Diller <nate.diller@...il.com>
To:	Andrew Morton <akpm@...l.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Christoph Hellwig <hch@...radead.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>,
	David Woodhouse <dwmw2@...radead.org>,
	Dave Kleikamp <shaggy@...tin.ibm.com>,
	Anton Altaparmakov <aia21@...tab.net>,
	Evgeniy Dushistov <dushistov@...l.ru>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	reiserfs-dev@...esys.com
Subject: [PATCH 1/17] cramfs: use read_mapping_page

read_mapping_page_async() is going away, so convert its only user to
read_mapping_page().  This change has not been benchmarked, however, in
order to get real parallelism this wants something completely different,
like __do_page_cache_readahead(), which is not currently exported.

Signed-off-by: Nate Diller <nate.diller@...il.com>

---

diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/cramfs/inode.c linux-2.6.21-rc6-mm1-test/fs/cramfs/inode.c
--- linux-2.6.21-rc6-mm1/fs/cramfs/inode.c	2007-04-09 17:24:03.000000000 -0700
+++ linux-2.6.21-rc6-mm1-test/fs/cramfs/inode.c	2007-04-09 21:37:09.000000000 -0700
@@ -180,8 +180,7 @@ static void *cramfs_read(struct super_bl
 		struct page *page = NULL;
 
 		if (blocknr + i < devsize) {
-			page = read_mapping_page_async(mapping, blocknr + i,
-									NULL);
+			page = read_mapping_page(mapping, blocknr + i, NULL);
 			/* synchronous error? */
 			if (IS_ERR(page))
 				page = NULL;
-
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