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Andi Kleen a551643895 hugetlb: modular state for hugetlb page size 
The goal of this patchset is to support multiple hugetlb page sizes.  This
is achieved by introducing a new struct hstate structure, which
encapsulates the important hugetlb state and constants (eg.  huge page
size, number of huge pages currently allocated, etc).

The hstate structure is then passed around the code which requires these
fields, they will do the right thing regardless of the exact hstate they
are operating on.

This patch adds the hstate structure, with a single global instance of it
(default_hstate), and does the basic work of converting hugetlb to use the
hstate.

Future patches will add more hstate structures to allow for different
hugetlbfs mounts to have different page sizes.

[akpm@linux-foundation.org: coding-style fixes]
Acked-by: Adam Litke <agl@us.ibm.com>
Acked-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2008-07-24 10:47:17 -07:00
..
native [IA64] pvops: paravirtualize NR_IRQS 2008-05-27 15:09:30 -07:00
sn [IA64] Fix CONFIG_IA64_SGI_UV build error 2008-06-16 09:02:03 -07:00
uv [IA64] Update ia64 mmr list for SGI uv 2008-07-17 11:27:05 -07:00
Kbuild [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions. 2008-05-27 14:40:18 -07:00
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
acpi-ext.h
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acpi.h [IA64] Minimize per_cpu reservations. 2008-04-08 13:51:35 -07:00
agp.h x86: remove flush_agp_mappings() 2008-01-30 13:34:07 +01:00
asmmacro.h
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atomic.h [IA64] Use atomic64_read to read an atomic64_t. 2007-08-13 10:21:04 -07:00
auxvec.h
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bitops.h generic: implement __fls on all 64-bit archs 2008-04-26 19:21:16 +02:00
break.h
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bug.h
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bugs.h
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byteorder.h
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cache.h
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cacheflush.h remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
checksum.h
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compat.h asm-*/compat.h: fix typo in comment 2008-02-03 16:32:51 +02:00
cpu.h [IA64] fix section mismatch in arch/ia64/kernel/topology.c 2008-04-30 14:08:07 -07:00
cputime.h [IA64] VIRT_CPU_ACCOUNTING (accurate cpu time accounting) 2008-02-20 12:55:37 -08:00
current.h
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cyclone.h
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delay.h
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device.h
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div64.h
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dma-mapping.h dma/ia64: update ia64 machvecs, swiotlb.c 2008-04-29 08:06:12 -07:00
dma.h
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dmi.h dmi: clean-up dmi helper declarations 2008-05-01 08:04:01 -07:00
elf.h [IA64] use CORE_DUMP_USE_REGSET 2008-03-12 16:27:35 -07:00
emergency-restart.h
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errno.h
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esi.h
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fb.h fbdev: detect primary display device 2007-07-17 10:23:11 -07:00
fcntl.h
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fpswa.h
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fpu.h
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futex.h asm-*/futex.h should include linux/uaccess.h 2008-04-30 08:29:52 -07:00
gcc_intrin.h [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions. 2008-05-27 14:40:18 -07:00
hardirq.h
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hpsim.h [IA64] Cleanup HPSIM code (was: Re: Enable early console for Ski simulator) 2007-09-01 02:52:25 -07:00
hugetlb.h hugetlb: modular state for hugetlb page size 2008-07-24 10:47:17 -07:00
hw_irq.h [IA64] pvops: add hooks, pv_irq_ops, to paravirtualized irq related operations. 2008-05-27 15:11:10 -07:00
ia32.h [IA64] rename partial_page 2007-07-25 12:56:39 -07:00
ia64regs.h
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ide.h ide: remove ide_init_default_irq() macro 2008-04-18 00:46:35 +02:00
intel_intrin.h [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions. 2008-05-27 14:40:18 -07:00
intrinsics.h [IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions. 2008-05-27 14:40:18 -07:00
io.h dmi: clean-up dmi helper declarations 2008-05-01 08:04:01 -07:00
ioctl.h
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ioctls.h [IA64] arbitary speed tty ioctl support 2007-07-13 16:04:12 -07:00
iosapic.h [IA64] pvops: add hooks, pv_iosapic_ops, to paravirtualize iosapic. 2008-05-27 15:10:41 -07:00
ipcbuf.h
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irq.h [IA64] pvops: paravirtualize NR_IRQS 2008-05-27 15:09:30 -07:00
irq_regs.h
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kdebug.h x86: optimize page faults like all other achitectures and kill notifier cruft 2007-10-16 09:42:50 -07:00
kexec.h kdump/kexec: calculate note size at compile time 2007-05-08 11:15:07 -07:00
kmap_types.h
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kprobes.h [IA64] kprobes: kprobe-booster for ia64 2008-04-09 10:36:43 -07:00
kregs.h [IA64] Add API for allocating Dynamic TR resource. 2008-04-03 11:02:58 -07:00
kvm.h KVM: ia64: Set KVM_IOAPIC_NUM_PINS to 48 2008-05-18 14:34:16 +03:00
kvm_host.h KVM: Add coalesced MMIO support (ia64 part) 2008-07-20 12:42:31 +03:00
kvm_para.h KVM: ia64: Add header files for kvm/ia64 2008-04-27 12:01:02 +03:00
libata-portmap.h
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linkage.h
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local.h local_t: ia64 extension 2007-05-08 11:15:20 -07:00
machvec.h [IA64] machvec support for SGI UV platform 2008-05-14 14:22:04 -07:00
machvec_dig.h
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machvec_hpsim.h
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machvec_hpzx1.h dma/ia64: update ia64 machvecs, swiotlb.c 2008-04-29 08:06:12 -07:00
machvec_hpzx1_swiotlb.h dma/ia64: update ia64 machvecs, swiotlb.c 2008-04-29 08:06:12 -07:00
machvec_init.h [IA64] SN2 needs platform specific irq_to_vector() function. 2007-08-13 10:31:26 -07:00
machvec_sn2.h dma/ia64: update ia64 machvecs, swiotlb.c 2008-04-29 08:06:12 -07:00
machvec_uv.h [IA64] machvec support for SGI UV platform 2008-05-14 14:22:04 -07:00
mc146818rtc.h
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mca.h [IA64] simplify notify hooks in mca.c 2008-04-22 08:56:38 -07:00
mca_asm.h [IA64] mca style cleanup 2008-02-04 15:42:06 -08:00
meminit.h [IA64] Fix NUMA configuration issue 2008-04-11 15:21:35 -07:00
mman.h
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mmu.h
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mmu_context.h [IA64] pvops: preparation: introduce ia64_set_rr0_to_rr4() to make kernel paravirtualization friendly. 2008-05-27 14:38:44 -07:00
mmzone.h
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module.h
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msgbuf.h
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mutex.h
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namei.h
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nodedata.h
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numa.h [IA64] Minimize per_cpu reservations. 2008-04-08 13:51:35 -07:00
page.h hugetlbfs: architecture header cleanup 2008-04-28 08:58:25 -07:00
pal.h [IA64] Itanium Spec updates 2008-04-09 13:05:54 -07:00
param.h [IA64] Fix build for sim_defconfig 2008-02-11 13:23:46 -08:00
paravirt.h [IA64] pvops: add to hooks, pv_time_ops, for steal time accounting. 2008-05-27 15:11:42 -07:00
paravirt_privop.h [IA64] pvops: paravirtualize entry.S 2008-05-27 15:08:01 -07:00
parport.h
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patch.h [IA64] Workaround for RSE issue 2008-05-27 13:24:39 -07:00
pci.h [IA64] Un-break ia64 build 2007-07-12 16:04:39 -07:00
percpu.h ia64: on UP percpu variables are not small memory model 2008-01-30 23:27:58 +01:00
perfmon.h
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perfmon_default_smpl.h
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pgalloc.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgtable.h mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
poll.h Consolidate asm/poll.h 2007-05-11 08:29:34 -07:00
posix_types.h
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processor.h ACPI : Create "idle=nomwait" bootparam 2008-07-16 23:27:05 +02:00
ptrace.h [IA64] Workaround for RSE issue 2008-05-27 13:24:39 -07:00
ptrace_offsets.h
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resource.h
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rse.h
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rwsem.h [IA64] Prevent people from directly including <asm/rwsem.h>. 2007-07-20 11:27:11 -07:00
sal.h [IA64] Kernel parameter for max number of concurrent global TLB purges 2008-04-04 11:06:38 -07:00
scatterlist.h Add CONFIG_DEBUG_SG sg validation 2007-10-22 21:20:03 +02:00
sections.h [IA64] Workaround for RSE issue 2008-05-27 13:24:39 -07:00
segment.h
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semaphore.h Generic semaphore implementation 2008-04-17 10:42:34 -04:00
sembuf.h
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serial.h
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setup.h
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shmbuf.h
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shmparam.h
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sigcontext.h
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siginfo.h
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signal.h
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smp.h Pull pvops into release branch 2008-07-17 10:53:37 -07:00
socket.h [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
sockios.h
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sparsemem.h
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spinlock.h remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
spinlock_types.h
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stat.h
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statfs.h
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string.h
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suspend.h
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system.h [IA64] pvops: preparation: introduce ia64_get_psr_i() to make kernel paravirtualization friendly. 2008-05-27 14:39:07 -07:00
termbits.h [IA64] arbitary speed tty ioctl support 2007-07-13 16:04:12 -07:00
termios.h [IA64] arbitary speed tty ioctl support 2007-07-13 16:04:12 -07:00
thread_info.h [IA64] TS_RESTORE_SIGMASK 2008-05-01 14:29:44 -07:00
timex.h
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tlb.h [IA64] Add API for allocating Dynamic TR resource. 2008-04-03 11:02:58 -07:00
tlbflush.h [IA64] Multiple outstanding ptc.g instruction support 2008-04-04 11:05:59 -07:00
topology.h [IA64] Provide ACPI fixup for /proc/cpuinfo/physical_id 2008-04-29 15:05:29 -07:00
types.h ia64: types: use <asm-generic/int-*.h> for the ia64 architecture 2008-05-02 16:18:21 -07:00
uaccess.h
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ucontext.h
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unaligned.h kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
uncached.h [IA64] allocate multiple contiguous pages via uncached allocator 2008-04-29 13:49:01 -07:00
unistd.h [IA64] Wire up timerfd_{create,settime,gettime} syscalls 2008-02-08 12:00:32 -08:00
unwind.h
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user.h Sanitize the type of struct user.u_ar0 2008-02-07 08:42:30 -08:00
ustack.h arch: personality independent stack top 2007-07-19 10:04:45 -07:00
vga.h
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xor.h
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