From: Bojan Smojver Date: Tue, 24 Apr 2012 21:53:28 +0000 (+0200) Subject: PM / Hibernate: fix the number of pages used for hibernate/thaw buffering X-Git-Tag: v3.2.17~37 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0791b5ffb456aa7de29391297e5dc93c1d123ff;p=pandora-kernel.git PM / Hibernate: fix the number of pages used for hibernate/thaw buffering commit f8262d476823a7ea1eb497ff9676d1eab2393c75 upstream. Hibernation regression fix, since 3.2. Calculate the number of required free pages based on non-high memory pages only, because that is where the buffers will come from. Commit 081a9d043c983f161b78fdc4671324d1342b86bc introduced a new buffer page allocation logic during hibernation, in order to improve the performance. The amount of pages allocated was calculated based on total amount of pages available, although only non-high memory pages are usable for this purpose. This caused hibernation code to attempt to over allocate pages on platforms that have high memory, which led to hangs. Signed-off-by: Bojan Smojver Signed-off-by: Rafael J. Wysocki Signed-off-by: Ben Hutchings --- Reading git-diff-tree failed