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authorJens Axboe <jaxboe@fusionio.com>2011-03-10 02:52:07 -0500
committerJens Axboe <jaxboe@fusionio.com>2011-03-10 02:52:07 -0500
commit7eaceaccab5f40bbfda044629a6298616aeaed50 (patch)
tree33954d12f63e25a47eb6d86ef3d3d0a5e62bf752 /mm/readahead.c
parent73c101011926c5832e6e141682180c4debe2cf45 (diff)
block: remove per-queue plugging
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>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index 77506a291a2d..cbddc3e17246 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -554,17 +554,5 @@ page_cache_async_readahead(struct address_space *mapping,
554 554
555 /* do read-ahead */ 555 /* do read-ahead */
556 ondemand_readahead(mapping, ra, filp, true, offset, req_size); 556 ondemand_readahead(mapping, ra, filp, true, offset, req_size);
557
558#ifdef CONFIG_BLOCK
559 /*
560 * Normally the current page is !uptodate and lock_page() will be
561 * immediately called to implicitly unplug the device. However this
562 * is not always true for RAID conifgurations, where data arrives
563 * not strictly in their submission order. In this case we need to
564 * explicitly kick off the IO.
565 */
566 if (PageUptodate(page))
567 blk_run_backing_dev(mapping->backing_dev_info, NULL);
568#endif
569} 557}
570EXPORT_SYMBOL_GPL(page_cache_async_readahead); 558EXPORT_SYMBOL_GPL(page_cache_async_readahead);