]> git.karo-electronics.de Git - linux-beck.git/commit
mm, page_alloc: use masks and shifts when converting GFP flags to migrate types
authorMel Gorman <mgorman@techsingularity.net>
Sat, 7 Nov 2015 00:28:18 +0000 (16:28 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 7 Nov 2015 01:50:42 +0000 (17:50 -0800)
commit016c13daa5c9e4827eca703e2f0621c131f2cca3
tree76205178d321c242882ced28aba8036b9d54213d
parent46e700abc44ce215acb4341d9702ce3972eda571
mm, page_alloc: use masks and shifts when converting GFP flags to migrate types

This patch redefines which GFP bits are used for specifying mobility and
the order of the migrate types.  Once redefined it's possible to convert
GFP flags to a migrate type with a simple mask and shift.  The only
downside is that readers of OOM kill messages and allocation failures may
have been used to the existing values but scripts/gfp-translate will help.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/gfp.h
include/linux/mmzone.h