From bc1123239ab950798779ca4e23228afb5443eb5d Mon Sep 17 00:00:00 2001 From: Namjae Jeon Date: Mon, 3 Oct 2011 14:02:59 +0900 Subject: udf: Add readpages support for udf. Use mpage_readpages() instead of multiple calls to udf_readpage() to reduce the CPU utilization and make performance higher. Signed-off-by: Namjae Jeon Signed-off-by: Jan Kara --- fs/udf/inode.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'fs/udf') diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 1d1358ed80c1..f94d6f9febf5 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -37,6 +37,7 @@ #include #include #include +#include #include "udf_i.h" #include "udf_sb.h" @@ -104,7 +105,13 @@ static int udf_writepage(struct page *page, struct writeback_control *wbc) static int udf_readpage(struct file *file, struct page *page) { - return block_read_full_page(page, udf_get_block); + return mpage_readpage(page, udf_get_block); +} + +static int udf_readpages(struct file *file, struct address_space *mapping, + struct list_head *pages, unsigned nr_pages) +{ + return mpage_readpages(mapping, pages, nr_pages, udf_get_block); } static int udf_write_begin(struct file *file, struct address_space *mapping, @@ -139,6 +146,7 @@ static sector_t udf_bmap(struct address_space *mapping, sector_t block) const struct address_space_operations udf_aops = { .readpage = udf_readpage, + .readpages = udf_readpages, .writepage = udf_writepage, .write_begin = udf_write_begin, .write_end = generic_write_end, -- cgit v1.2.1