From: Mikulas Patocka <mpatocka@redhat.com>
Date: Sun, 29 May 2011 12:03:11 +0000 (+0100)
Subject: dm kcopyd: reserve fewer pages
X-Git-Tag: v3.0-rc1~9^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f43ba2950414dc0abf4ac44c397d88069056746;p=pandora-kernel.git

dm kcopyd: reserve fewer pages

Reserve just the minimum of pages needed to process one job.

Because we allocate pages from page allocator, we don't need to reserve
a large number of pages.  The maximum job size is SUB_JOB_SIZE and we
calculate the number of reserved pages based on this.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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