Commit 3069083c authored by Namjae Jeon's avatar Namjae Jeon Committed by Linus Torvalds

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: default avatarNamjae Jeon <>
Cc: Al Viro <>
Cc: Jan Kara <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent b6eb48d0
......@@ -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 inode *inode, sector_t block)
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 address_space *mapping, sector_t block)
static const struct address_space_operations isofs_aops = {
.readpage = isofs_readpage,
.readpages = isofs_readpages,
.bmap = _isofs_bmap
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