kernel_samsung_sm7125

jenna

History

Mel Gorman b377fd3982 Apply memory policies to top two highest zones when highest zone is ZONE_MOVABLE The NUMA layer only supports NUMA policies for the highest zone. When ZONE_MOVABLE is configured with kernelcore=, the the highest zone becomes ZONE_MOVABLE. The result is that policies are only applied to allocations like anonymous pages and page cache allocated from ZONE_MOVABLE when the zone is used. This patch applies policies to the two highest zones when the highest zone is ZONE_MOVABLE. As ZONE_MOVABLE consists of pages from the highest "real" zone, it's always functionally equivalent. The patch has been tested on a variety of machines both NUMA and non-NUMA covering x86, x86_64 and ppc64. No abnormal results were seen in kernbench, tbench, dbench or hackbench. It passes regression tests from the numactl package with and without kernelcore= once numactl tests are patched to wait for vmstat counters to update. akpm: this is the nasty hack to fix NUMA mempolicies in the presence of ZONE_MOVABLE and kernelcore= in 2.6.23. Christoph says "For .24 either merge the mobility or get the other solution that Mel is working on. That solution would only use a single zonelist per node and filter on the fly. That may help performance and also help to make memory policies work better." Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Tested-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
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Kconfig	Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION	18 years ago
Makefile	…
allocpercpu.c	…
backing-dev.c	…
bootmem.c	…
bounce.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
fadvise.c	…
filemap.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block	18 years ago
filemap.h	…
filemap_xip.c	…
fremap.c	…
highmem.c	…
hugetlb.c	Fix VM_FAULT flags conversion for hugetlb	18 years ago
internal.h	…
madvise.c	…
memory.c	remove handle_mm_fault export	18 years ago
memory_hotplug.c	…
mempolicy.c	Apply memory policies to top two highest zones when highest zone is ZONE_MOVABLE	18 years ago
mempool.c	…
migrate.c	memory unplug: isolate_lru_page fix	18 years ago
mincore.c	…
mlock.c	…
mmap.c	fix NULL pointer dereference in __vm_enough_memory()	18 years ago
mmzone.c	…
mprotect.c	mm: variable length argument support	18 years ago
mremap.c	mm: variable length argument support	18 years ago
msync.c	…
nommu.c	fix NULL pointer dereference in __vm_enough_memory()	18 years ago
oom_kill.c	oom: print points as unsigned long	18 years ago
page-writeback.c	move page writeback acounting out of macros	18 years ago
page_alloc.c	Apply memory policies to top two highest zones when highest zone is ZONE_MOVABLE	18 years ago
page_io.c	…
pdflush.c	…
prio_tree.c	…
quicklist.c	…
readahead.c	…
rmap.c	mm: Remove slab destructors from kmem_cache_create().	18 years ago
shmem.c	mm: Remove slab destructors from kmem_cache_create().	18 years ago
shmem_acl.c	…
slab.c	slab: skip calling cache_free_alien() when the platform is not numa capable	18 years ago
slob.c	slob: reduce list scanning	18 years ago
slub.c	SLUB: do not fail on broken memory configurations	18 years ago
sparse.c	sparsemem: ensure we initialise the node mapping for SPARSEMEM_STATIC	18 years ago
swap.c	…
swap_state.c	…
swapfile.c	Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION	18 years ago
thrash.c	…
tiny-shmem.c	…
truncate.c	…
util.c	…
vmalloc.c	lguest: export symbols for lguest as a module	18 years ago
vmscan.c	synchronous lumpy reclaim: wait for page writeback when directly reclaiming contiguous areas	18 years ago
vmstat.c	Remove fs.h from mm.h	18 years ago