linux_dsm_epyc7002/arch
Christoph Lameter 39743889aa [PATCH] Swap Migration V5: sys_migrate_pages interface
sys_migrate_pages implementation using swap based page migration

This is the original API proposed by Ray Bryant in his posts during the first
half of 2005 on linux-mm@kvack.org and linux-kernel@vger.kernel.org.

The intent of sys_migrate is to migrate memory of a process.  A process may
have migrated to another node.  Memory was allocated optimally for the prior
context.  sys_migrate_pages allows to shift the memory to the new node.

sys_migrate_pages is also useful if the processes available memory nodes have
changed through cpuset operations to manually move the processes memory.  Paul
Jackson is working on an automated mechanism that will allow an automatic
migration if the cpuset of a process is changed.  However, a user may decide
to manually control the migration.

This implementation is put into the policy layer since it uses concepts and
functions that are also needed for mbind and friends.  The patch also provides
a do_migrate_pages function that may be useful for cpusets to automatically
move memory.  sys_migrate_pages does not modify policies in contrast to Ray's
implementation.

The current code here is based on the swap based page migration capability and
thus is not able to preserve the physical layout relative to it containing
nodeset (which may be a cpuset).  When direct page migration becomes available
then the implementation needs to be changed to do a isomorphic move of pages
between different nodesets.  The current implementation simply evicts all
pages in source nodeset that are not in the target nodeset.

Patch supports ia64, i386 and x86_64.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:12:42 -08:00
..
alpha [PATCH] Alpha: convert to generic irq framework (alpha part) 2006-01-06 08:33:40 -08:00
arm [ARM] Move asm/hardware/clock.h to linux/clk.h 2006-01-07 16:15:52 +00:00
arm26 arch/arm26/nwfpe/fpmodule.c: remove kernel 2.0 #ifdef 2006-01-03 13:42:12 +01:00
cris [PATCH] cris: kgdb: remove double_this() 2006-01-06 08:33:45 -08:00
frv [PATCH] frv: improve signal handling 2006-01-06 08:33:33 -08:00
h8300 [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
i386 [PATCH] Swap Migration V5: sys_migrate_pages interface 2006-01-08 20:12:42 -08:00
ia64 [PATCH] Swap Migration V5: sys_migrate_pages interface 2006-01-08 20:12:42 -08:00
m32r [PATCH] m32r: Remove unnecessary icu_data_t definitions 2006-01-06 08:33:44 -08:00
m68k [PATCH] m68k: convert thread flags to use bit fields 2005-11-13 18:14:14 -08:00
m68knommu [PATCH] m68knommu: enable_irq/disable_irq 2006-01-06 08:33:44 -08:00
mips Relax the rw_verify_area() error checking. 2006-01-04 16:20:40 -08:00
parisc [PARISC] Remove unused variable in signal.c 2005-11-17 16:43:52 -05:00
powerpc [PATCH] driver core: replace "hotplug" by "uevent" 2006-01-04 16:18:08 -08:00
ppc [PATCH] ppc32: Re-add embed_config.c to ml300/ep405 2006-01-06 08:33:31 -08:00
s390 [PATCH] s390: cleanup Kconfig 2006-01-06 08:33:53 -08:00
sh [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sh64 [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sparc [SPARC]: Use STABS_DEBUG and DWARF_DEBUG macros in vmlinux.lds.S 2005-12-28 13:22:54 -08:00
sparc64 [SPARC]: Use STABS_DEBUG and DWARF_DEBUG macros in vmlinux.lds.S 2005-12-28 13:22:54 -08:00
um [PATCH] uml: free network IRQ correctly 2006-01-06 08:33:48 -08:00
v850 [PATCH] v850: use generic hardirq code 2005-11-15 08:59:20 -08:00
x86_64 [PATCH] Swap Migration V5: sys_migrate_pages interface 2006-01-08 20:12:42 -08:00
xtensa Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel 2005-11-11 09:24:26 -08:00