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| author | Namjae Jeon <linkinjeon@gmail.com> | 2011-10-03 09:02:59 +0400 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2011-10-06 02:13:48 +0400 |
| commit | bc1123239ab950798779ca4e23228afb5443eb5d (patch) | |
| tree | dff5797bd23ba770621d6f5a358dc7142c4ab1b0 /fs/udf | |
| parent | 3ee77f2091c229a72c64d9aeef1ee4a7624e5795 (diff) | |
| download | linux-bc1123239ab950798779ca4e23228afb5443eb5d.tar.xz | |
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 <linkinjeon@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf')
| -rw-r--r-- | fs/udf/inode.c | 10 |
1 files changed, 9 insertions, 1 deletions
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 <linux/writeback.h> #include <linux/slab.h> #include <linux/crc-itu-t.h> +#include <linux/mpage.h> #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, |