From: Kent Overstreet <koverstreet@google.com>
Date: Fri, 7 Jun 2013 01:15:57 +0000 (-0700)
Subject: bcache: Use standard utility code
X-Git-Tag: v3.11-rc3~32^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e51e414a3c6d92ef2cc41720c67342a8e2c0bf7;p=pandora-kernel.git

bcache: Use standard utility code

Some of bcache's utility code has made it into the rest of the kernel,
so drop the bcache versions.

Bcache used to have a workaround for allocating from a bio set under
generic_make_request() (if you allocated more than once, the bios you
already allocated would get stuck on current->bio_list when you
submitted, and you'd risk deadlock) - bcache would mask out __GFP_WAIT
when allocating bios under generic_make_request() so that allocation
could fail and it could retry from workqueue. But bio_alloc_bioset() has
a workaround now, so we can drop this hack and the associated error
handling.

Signed-off-by: Kent Overstreet <koverstreet@google.com>
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