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| author | Namjae Jeon <linkinjeon@gmail.com> | 2011-11-03 00:38:00 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-03 03:06:59 +0400 |
| commit | 3069083cc8def2ffad8520f0f24c6f95f140aac5 (patch) | |
| tree | 226fddfdb3ad4f170809fd44f167a02a360f2ea2 | |
| parent | b6eb48d02dc73d19bebc396a9e92dd64a65d3199 (diff) | |
| download | linux-3069083cc8def2ffad8520f0f24c6f95f140aac5.tar.xz | |
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@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/isofs/inode.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index a5d03672d04e..46844ff39d61 100644 --- a/fs/isofs/inode.c +++ b/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 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 }; |