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| author | Jens Axboe <jaxboe@fusionio.com> | 2011-03-10 08:52:07 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-03-10 08:52:07 +0100 |
| commit | 7eaceaccab5f40bbfda044629a6298616aeaed50 (patch) | |
| tree | 33954d12f63e25a47eb6d86ef3d3d0a5e62bf752 /mm/readahead.c | |
| parent | block: initial patch for on-stack per-task plugging (diff) | |
| download | linux-7eaceaccab5f40bbfda044629a6298616aeaed50.tar.xz linux-7eaceaccab5f40bbfda044629a6298616aeaed50.zip | |
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.c | 12 |
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, /* 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); |