lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 3 Oct 2011 13:57:17 +0900 From: Namjae Jeon <linkinjeon@...il.com> To: akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org, Namjae Jeon <linkinjeon@...il.com> Subject: [PATCH] isofs : add readpages support for isofs. Using mpage_readpages instead of multiple calls to isofs_readpage to reduce the CPU utilization and make performance higher. Signed-off-by: Namjae Jeon <linkinjeon@...il.com> --- 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 a5d0367..46844ff 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 }; -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists