lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

block: remove per-queue plugging

Browse Source 
Code has been converted over to the new explicit on-stack plugging,
and delay users have been converted to use the new API for that.
So lets kill off the old plugging along with aops->sync_page().

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Jens Axboe
2011-03-10 08:52:07 +01:00
parent 73c1010119
commit 7eaceaccab
119 changed files with 151 additions and 1269 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
mm/readahead.c
View File

@@ -554,17 +554,5 @@ page_cache_async_readahead(struct address_space *mapping,
/* do read-ahead */
ondemand_readahead(mapping, ra, filp, true, offset, req_size);
#ifdef CONFIG_BLOCK
/*
* Normally the current page is !uptodate and lock_page() will be
* immediately called to implicitly unplug the device. However this
* is not always true for RAID conifgurations, where data arrives
* not strictly in their submission order. In this case we need to
* explicitly kick off the IO.
*/
if (PageUptodate(page))
blk_run_backing_dev(mapping->backing_dev_info, NULL);
#endif
}
EXPORT_SYMBOL_GPL(page_cache_async_readahead);