kernel-hacking-2024-linux-s.../arch/powerpc/mm
Jeremy Fitzhardinge 180c06efce hotplug-memory: make online_page() common
All architectures use an effectively identical definition of online_page(), so
just make it common code.  x86-64, ia64, powerpc and sh are actually
identical; x86-32 is slightly different.

x86-32's differences arise because it puts its hotplug pages in the highmem
zone.  We can handle this in the generic code by inspecting the page to see if
its in highmem, and update the totalhigh_pages count appropriately.  This
leaves init_32.c:free_new_highpage with a single caller, so I folded it into
add_one_highpage_init.

I also removed an incorrect comment referring to the NUMA case; any NUMA
details have already been dealt with by the time online_page() is called.

[akpm@linux-foundation.org: fix indenting]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamez.hiroyu@jp.fujitsu.com>
Tested-by: KAMEZAWA Hiroyuki <kamez.hiroyu@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Christoph Lameter <clameter@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:17 -07:00
..
40x_mmu.c [POWERPC] Remove and replace uses of PPC_MEMSTART with memstart_addr 2008-04-17 07:46:12 +10:00
44x_mmu.c [POWERPC] Introduce lowmem_end_addr to distinguish from total_lowmem 2008-04-17 07:46:13 +10:00
fault.c
fsl_booke_mmu.c [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
hash_low_32.S [POWERPC] Clean up access to thread_info in assembly 2008-04-24 20:58:02 +10:00
hash_low_64.S
hash_native_64.c
hash_utils_64.c [POWERPC] htab_remove_mapping is only used by MEMORY_HOTPLUG 2008-04-07 13:49:25 +10:00
hugetlbpage.c
init_32.c [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
init_64.c [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
Makefile [LIB]: Make PowerPC LMB code generic so sparc64 can use it too. 2008-02-13 16:56:49 -08:00
mem.c hotplug-memory: make online_page() common 2008-04-28 08:58:17 -07:00
mmap.c
mmu_context_32.c
mmu_context_64.c
mmu_decl.h [POWERPC] Rename __initial_memory_limit to __initial_memory_limit_addr 2008-04-17 07:46:13 +10:00
numa.c [POWERPC] Add include of linux/of.h to numa.c 2008-04-24 20:57:32 +10:00
pgtable_32.c [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
pgtable_64.c
ppc_mmu_32.c [POWERPC] Rename __initial_memory_limit to __initial_memory_limit_addr 2008-04-17 07:46:13 +10:00
slb.c [POWERPC] Fix PMU + soft interrupt disable bug 2008-03-20 10:14:55 +11:00
slb_low.S
slice.c
stab.c [LIB]: Make PowerPC LMB code generic so sparc64 can use it too. 2008-02-13 16:56:49 -08:00
subpage-prot.c
tlb_32.c
tlb_64.c