From: Shaohua Li <shli@fb.com>
Date: Fri, 8 May 2015 17:51:28 +0000 (-0700)
Subject: blk: clean up plug
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~149^2~26
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dd6cf3e18decb4895503db1752bb5500c4dd588d;p=pandora-kernel.git

blk: clean up plug

Current code looks like inner plug gets flushed with a
blk_finish_plug(). Actually it's a nop. All requests/callbacks are added
to current->plug, while only outmost plug is assigned to current->plug.
So inner plug always has empty request/callback list, which makes
blk_flush_plug_list() a nop. This tries to make the code more clear.

Signed-off-by: Shaohua Li <shli@fb.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

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