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KAMEZAWA Hiroyuki 48e94196a5 fix memory hot remove not configured case. 
Now, arch dependent code around CONFIG_MEMORY_HOTREMOVE is a mess.
This patch cleans up them. This is against 2.6.23-rc6-mm1.

 - fix compile failure on ia64/ CONFIG_MEMORY_HOTPLUG && !CONFIG_MEMORY_HOTREMOVE case.
 - For !CONFIG_MEMORY_HOTREMOVE, add generic no-op remove_memory(),
   which returns -EINVAL.
 - removed remove_pages() only used in powerpc.
 - removed no-op remove_memory() in i386, sh, sparc64, x86_64.

 - only powerpc returns -ENOSYS at memory hot remove(no-op). changes it
   to return -EINVAL.

Note:
Currently, only ia64 supports CONFIG_MEMORY_HOTREMOVE. I welcome other
archs if there are requirements and testers.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
History 2007-10-16 09:43:02 -07:00
..
alpha During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
arm During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
avr32 During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
blackfin Consolidate PTRACE_DETACH 2007-10-16 09:42:49 -07:00
cris During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
frv During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
h8300 H8/300: Fix misnamed "CONFIG_BLKDEV_RESERVE_ADDRESS" Kconfig variable 2007-09-11 17:21:20 -07:00
i386 sched: x86: allow single-depth wchan output 2007-10-15 17:00:07 +02:00
ia64 fix memory hot remove not configured case. 2007-10-16 09:43:02 -07:00
m32r During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
m68k During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
m68knommu m68k(nommu): add missing syscalls 2007-09-11 17:21:20 -07:00
mips During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
parisc During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
powerpc fix memory hot remove not configured case. 2007-10-16 09:43:02 -07:00
ppc During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
s390 During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
sh fix memory hot remove not configured case. 2007-10-16 09:43:02 -07:00
sh64 During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
sparc During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00
sparc64 fix memory hot remove not configured case. 2007-10-16 09:43:02 -07:00
um Consolidate PTRACE_DETACH 2007-10-16 09:42:49 -07:00
v850 PTRACE_POKEDATA consolidation 2007-07-17 10:23:03 -07:00
x86 fix memory hot remove not configured case. 2007-10-16 09:43:02 -07:00
x86_64 x86_64: SPARSEMEM_VMEMMAP 2M page size support 2007-10-16 09:42:51 -07:00
xtensa During VM oom condition, kill all threads in process group 2007-10-16 09:42:52 -07:00