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8e2cdbcb86
linux/arch/x86/mm
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Johannes Weiner 8e2cdbcb86 x86-64: fall back to regular page vmemmap on allocation failure 
Memory hotplug can happen on a machine under load, memory shortness
and fragmentation, so huge page allocations for the vmemmap are not
guaranteed to succeed.

Try to fall back to regular pages before failing the hotplug event
completely.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Bernhard Schmidt <Bernhard.Schmidt@lrz.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29 15:54:35 -07:00
..
kmemcheck bug.h: add include of it to various implicit C users 2012-02-29 17:15:08 -05:00
amdtopology.c x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too 2011-05-02 17:24:48 +02:00
dump_pagetables.c x86, mm: Create symbolic index into address_markers array 2010-07-20 16:56:19 -07:00
extable.c x86, extable: Switch to relative exception table entries 2012-04-20 17:22:34 -07:00
fault.c x86, mm, paravirt: Fix vmalloc_fault oops during lazy MMU updates 2013-04-10 11:25:07 -07:00
gup.c thp: add compound tail page _mapcount when mapped 2011-12-09 07:50:28 -08:00
highmem_32.c mm/x86: use free_highmem_page() to free highmem pages into buddy system 2013-04-29 15:54:32 -07:00
hugetlbpage.c mm: use vm_unmapped_area() in hugetlbfs on i386 architecture 2012-12-11 17:22:25 -08:00
init_32.c mm/x86: use free_highmem_page() to free highmem pages into buddy system 2013-04-29 15:54:32 -07:00
init_64.c x86-64: fall back to regular page vmemmap on allocation failure 2013-04-29 15:54:35 -07:00
init.c mm/x86: use common help functions to free reserved pages 2013-04-29 15:54:31 -07:00
iomap_32.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
ioremap.c mm, vmalloc: change iterating a vmlist to find_vm_area() 2013-04-29 15:54:33 -07:00
kmmio.c x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages 2010-06-18 11:30:09 +02:00
Makefile memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones 2011-07-14 11:47:53 -07:00
memtest.c x86/memtest: Shorten time for tests 2013-02-18 09:28:42 +01:00
mm_internal.h x86, mm: Move after_bootmem to mm_internel.h 2012-11-17 11:59:45 -08:00
mmap.c x86: Fix mmap random address range 2011-12-05 17:07:23 +01:00
mmio-mod.c module_param: make bool parameters really bool (arch) 2012-01-13 09:32:18 +10:30
numa_32.c x86-32, mm: Rip out x86_32 NUMA remapping code 2013-01-31 14:12:30 -08:00
numa_64.c x86, mm: kill numa_free_all_bootmem() 2012-11-17 11:59:47 -08:00
numa_emulation.c x86: print physical addresses consistently with other parts of kernel 2012-05-29 16:22:21 -07:00
numa_internal.h x86-32, mm: Rip out x86_32 NUMA remapping code 2013-01-31 14:12:30 -08:00
numa.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
pageattr-test.c x86/mm/cpa/selftest: Fix false positive in CPA self test 2013-04-12 06:39:20 +02:00
pageattr.c x86/mm: Flush lazy MMU when DEBUG_PAGEALLOC is set 2013-04-12 07:19:19 +02:00
pat_internal.h x86, pat: Fix memory leak in free_memtype 2010-05-26 11:26:04 -07:00
pat_rbtree.c rbtree: move augmented rbtree functionality to rbtree_augmented.h 2012-10-09 16:22:40 +09:00
pat.c x86: Do not try to sync identity map for non-mapped pages 2013-03-07 13:23:28 -08:00
pf_in.c x86: Eliminate various 'set but not used' warnings 2011-05-21 19:10:33 +02:00
pf_in.h
pgtable_32.c Disintegrate asm/system.h for X86 2012-03-28 18:11:12 +01:00
pgtable.c x86-32: Fix possible incomplete TLB invalidate with PAE pagetables 2013-04-12 16:56:47 -07:00
physaddr.c x86, mm: Make DEBUG_VIRTUAL work earlier in boot 2013-01-25 16:33:22 -08:00
physaddr.h x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
setup_nx.c x86, cpu: Only CPU features determine NX capabilities 2010-11-10 15:43:15 -08:00
srat.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
testmmiotrace.c x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages 2010-06-18 11:30:09 +02:00
tlb.c x86: Convert a few mistaken __cpuinit annotations to __init 2013-01-24 17:12:19 +01:00