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Mel Gorman dd1a239f6f mm: have zonelist contains structs with both a zone pointer and zone_idx ... Filtering zonelists requires very frequent use of zone_idx(). This is costly as it involves a lookup of another structure and a substraction operation. As the zone_idx is often required, it should be quickly accessible. The node idx could also be stored here if it was found that accessing zone->node is significant which may be the case on workloads where nodemasks are heavily used. This patch introduces a struct zoneref to store a zone pointer and a zone index. The zonelist then consists of an array of these struct zonerefs which are looked up as necessary. Helpers are given for accessing the zone index as well as the node index. [kamezawa.hiroyu@jp.fujitsu.com: Suggested struct zoneref instead of embedding information in pointers] [hugh@veritas.com: mm-have-zonelist: fix memcg ooms] [hugh@veritas.com: just return do_try_to_free_pages] [hugh@veritas.com: do_try_to_free_pages gfp_mask redundant] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Christoph Lameter <clameter@sgi.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Christoph Lameter <clameter@sgi.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
..
configs	[PARISC] move defconfig to arch/parisc/configs/	17 years ago
hpux	Introduce path_put()	17 years ago
kernel	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6	17 years ago
lib	Revert "[PARISC] import necessary bits of libgcc.a"	17 years ago
math-emu	kbuild: fix up CFLAGS usage	18 years ago
mm	mm: have zonelist contains structs with both a zone pointer and zone_idx	17 years ago
oprofile	Combine instrumentation menus in kernel/Kconfig.instrumentation	18 years ago
Kconfig	ide: introduce HAVE_IDE	17 years ago
Kconfig.debug	alpha/parisc: remove config variable DEBUG_RWLOCK	17 years ago
Makefile	[PARISC] move defconfig to arch/parisc/configs/	17 years ago
defpalo.conf	…
install.sh	…
nm	…