The patch titled
Subject: isofs: add readpages support
has been added to the -mm tree. Its filename is
isofs-add-readpages-support-for-isofs.patch
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------------------------------------------------------
From: Namjae Jeon <linkinjeon@xxxxxxxxx>
Subject: isofs: add readpages support
Use mpage_readpages() instead of multiple calls to isofs_readpage() to
reduce the CPU utilization and make performance higher.
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <>
---
fs/isofs/inode.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff -puN fs/isofs/inode.c~isofs-add-readpages-support-for-isofs fs/isofs/inode.c
--- a/fs/isofs/inode.c~isofs-add-readpages-support-for-isofs
+++ a/fs/isofs/inode.c
@@ -20,6 +20,7 @@
#include <linux/statfs.h>
#include <linux/cdrom.h>
#include <linux/parser.h>
+#include <linux/mpage.h>
#include "isofs.h"
#include "zisofs.h"
@@ -1148,7 +1149,13 @@ struct buffer_head *isofs_bread(struct i
static int isofs_readpage(struct file *file, struct page *page)
{
- return block_read_full_page(page,isofs_get_block);
+ return mpage_readpage(page, isofs_get_block);
+}
+
+static int isofs_readpages(struct file *file, struct address_space *mapping,
+ struct list_head *pages, unsigned nr_pages)
+{
+ return mpage_readpages(mapping, pages, nr_pages, isofs_get_block);
}
static sector_t _isofs_bmap(struct address_space *mapping, sector_t block)
@@ -1158,6 +1165,7 @@ static sector_t _isofs_bmap(struct addre
static const struct address_space_operations isofs_aops = {
.readpage = isofs_readpage,
+ .readpages = isofs_readpages,
.bmap = _isofs_bmap
};
_
Subject: Subject: isofs: add readpages support
Patches currently in -mm which might be from linkinjeon@xxxxxxxxx are
isofs-add-readpages-support-for-isofs.patch
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