Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

read-ahead: use plugging

Browse source 
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Jens Axboe 2010-04-19 10:04:38 +02:00
parent 55602dd66f
commit 5b417b1873
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
mm/readahead.c
View file

@ -109,9 +109,12 @@ EXPORT_SYMBOL(read_cache_pages);
static int read_pages(struct address_space *mapping, struct file *filp, static int read_pages(struct address_space *mapping, struct file *filp,
struct list_head *pages, unsigned nr_pages) struct list_head *pages, unsigned nr_pages)
{ {
struct blk_plug plug;
unsigned page_idx; unsigned page_idx;
int ret; int ret;
blk_start_plug(&plug);
if (mapping->a_ops->readpages) { if (mapping->a_ops->readpages) {
ret = mapping->a_ops->readpages(filp, mapping, pages, nr_pages); ret = mapping->a_ops->readpages(filp, mapping, pages, nr_pages);
/* Clean up the remaining pages */ /* Clean up the remaining pages */
@ -129,7 +132,10 @@ static int read_pages(struct address_space *mapping, struct file *filp,
page_cache_release(page); page_cache_release(page);
} }
ret = 0; ret = 0;
out: out:
blk_finish_plug(&plug);
return ret; return ret;
} }