From: David Sterba <dsterba@suse.cz>
Date: Wed, 4 Jun 2014 23:59:57 +0000 (+0200)
Subject: btrfs: use DIV_ROUND_UP instead of open-coded variants
X-Git-Tag: fixes-against-v3.18-rc2~120^2~112
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed6078f70335f158ca79790a0d0708ce558a6e9a;p=pandora-kernel.git

btrfs: use DIV_ROUND_UP instead of open-coded variants

The form

  (value + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT

is equivalent to

  (value + PAGE_CACHE_SIZE - 1) / PAGE_CACHE_SIZE

The rest is a simple subsitution, no difference in the generated
assembly code.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
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