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a551643895
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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
..
cpu-sh2 rtc: rtc-sh: Split out the CPU defs to asm/cpu/. 2008-01-28 13:18:58 +09:00
cpu-sh2a rtc: rtc-sh: Split out the CPU defs to asm/cpu/. 2008-01-28 13:18:58 +09:00
cpu-sh3 sh: Fix DMAC base address for SH7709S 2008-05-09 19:04:12 +09:00
cpu-sh4 sh: Add support for SH7723 CPU subtype. 2008-04-18 09:50:07 -07:00
cpu-sh5 sh: Kill off more dead symbols. 2008-02-14 14:22:12 +09:00
dreamcast
hd64465
landisk
sh03
.gitignore
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
adc.h
addrspace.h sh: Clean up places that make 29-bit physical assumptions. 2008-01-28 13:18:59 +09:00
atomic-grb.h sh: GUSA atomic rollback support. 2008-01-28 13:18:58 +09:00
atomic-irq.h
atomic-llsc.h
atomic.h sh: GUSA atomic rollback support. 2008-01-28 13:18:58 +09:00
auxvec.h sh: Provide the FPSCR init through AT_FPUCW. 2008-01-28 13:19:00 +09:00
bitops-grb.h sh: GUSA atomic rollback support. 2008-01-28 13:18:58 +09:00
bitops-irq.h sh: GUSA atomic rollback support. 2008-01-28 13:18:58 +09:00
bitops.h generic: implement __fls on all 64-bit archs 2008-04-26 19:21:16 +02:00
bug.h sh: Fix up generic BUG build for SH-5. 2008-01-28 13:18:52 +09:00
bugs.h sh: Initial support for the MX-G CPU. 2008-04-18 09:50:01 -07:00
byteorder.h sh: Fix more user header breakage from sh64 integration. 2008-03-14 17:21:09 +09:00
cache.h sh: Split out cache status bits per-CPU family. 2008-01-28 13:18:38 +09:00
cacheflush.h sh: Fix argument page dcache flushing regression. 2008-01-07 13:50:18 +09:00
checksum_32.h sh: fix miscompilation of ip_fast_csum with gcc >= 4.3 2008-06-02 12:40:14 +09:00
checksum_64.h sh: comment tidying for sh64->sh migration. 2008-01-28 13:18:58 +09:00
checksum.h sh: Split out checksum.h in to _32 and _64 variants. 2008-01-28 13:18:45 +09:00
clock.h
cmpxchg-grb.h sh: GUSA atomic rollback support. 2008-01-28 13:18:58 +09:00
cmpxchg-irq.h sh: GUSA atomic rollback support. 2008-01-28 13:18:58 +09:00
cpu-features.h
cputime.h
current.h
delay.h sh: Fix up the sh64 build. 2008-03-06 17:23:15 +09:00
device.h
div64.h
dma-mapping.h sh: declared coherent memory support V2 2008-01-28 13:19:04 +09:00
dma.h
dmabrg.h
edosk7705.h
elf.h sh: Kill off superfluous __KERNEL__ check in asm/elf.h. 2008-01-28 13:19:00 +09:00
emergency-restart.h
entry-macros.S sh: Fix up HAS_SR_RB typo in entry-macros. 2008-02-26 14:28:48 +09:00
errno.h
fb.h
fcntl.h
fixmap.h sh: Preparation for uncached jumps through PMB. 2008-01-28 13:18:59 +09:00
flat.h sh: Fix up binfmt_flat compile warnings. 2008-01-28 13:19:00 +09:00
fpu.h sh: Fix TIF_USEDFPU clearing under FPU emulation. 2008-03-26 19:09:21 +09:00
freq.h
futex-irq.h
futex.h asm-*/futex.h should include linux/uaccess.h 2008-04-30 08:29:52 -07:00
gpio.h
hardirq.h
hd64461.h sh: include/asm-sh/: Spelling fixes. 2008-01-28 13:19:01 +09:00
heartbeat.h
hp6xx.h sh: Tidy include/asm-sh/hp6xx.h 2008-02-14 14:22:11 +09:00
hugetlb.h hugetlb: modular state for hugetlb page size 2008-07-24 10:47:17 -07:00
hw_irq.h sh: add interrupt ack code to sh3 2008-05-08 19:52:03 +09:00
i2c-sh7760.h i2c: Renesas SH7760 I2C master driver 2008-04-22 22:16:47 +02:00
ide.h ide: remove ide_default_io_ctl() macro 2008-04-18 00:46:34 +02:00
ilsel.h
io_generic.h
io_trapped.h sh: trapped io support V2 2008-02-14 14:22:09 +09:00
io.h sh64: Fixup the nommu build. 2008-05-08 19:51:37 +09:00
ioctl.h
ioctls.h sh: termios ioctl definitions 2008-02-14 14:22:07 +09:00
ipcbuf.h
irq_regs.h
irq.h sh: asm/irq.h needs asm/cpu/irq.h. 2008-02-14 14:22:12 +09:00
irqflags_32.h sh: Split out irqflags.h in to _32 and _64 variants. 2008-01-28 13:18:40 +09:00
irqflags_64.h sh: Split out irqflags.h in to _32 and _64 variants. 2008-01-28 13:18:40 +09:00
irqflags.h sh: Split out irqflags.h in to _32 and _64 variants. 2008-01-28 13:18:40 +09:00
Kbuild sh: Fix posix_types.h userspace breakage from sh64 merge. 2008-01-28 13:19:02 +09:00
kdebug.h x86: optimize page faults like all other achitectures and kill notifier cruft 2007-10-16 09:42:50 -07:00
kexec.h
kgdb.h sh: use the common ascii hex helpers 2008-05-16 15:09:08 +09:00
kmap_types.h
kvm.h kvm: provide kvm.h for all architecture: fixes headers_install 2008-04-02 15:28:18 -07:00
lboxre2.h
linkage.h
local.h
machvec.h remove __attribute_used__ 2008-01-28 23:21:18 +01:00
magicpanelr2.h
mc146818rtc.h
microdev.h sh: include/asm-sh/: Spelling fixes. 2008-01-28 13:19:01 +09:00
migor.h sh: Add MigoR header file 2008-04-18 09:50:03 -07:00
mman.h
mmu_context_32.h sh: Move in the SH-5 mmu_context headers. 2008-01-28 13:18:41 +09:00
mmu_context_64.h sh: Get SH-5 caches working again post-unification. 2008-02-14 14:22:12 +09:00
mmu_context.h sh64: Fixup the nommu build. 2008-05-08 19:51:37 +09:00
mmu.h
mmzone.h sh: add memory resources to /proc/iomem 2008-05-08 19:51:51 +09:00
module.h sh: Add SH-5 support to asm/module.h. 2008-01-28 13:18:39 +09:00
msgbuf.h
mutex.h
namei.h
page.h sh: Get SH-5 caches working again post-unification. 2008-02-14 14:22:12 +09:00
param.h sh: Always use CONFIG_HZ for HZ. 2008-01-28 13:19:01 +09:00
parport.h
pci.h sh: Get the SH-5 PCI support building. 2008-01-28 13:18:55 +09:00
percpu.h
pgalloc.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgtable_32.h mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
pgtable_64.h mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
pgtable.h sh: Stub in page_table_range_init() on nommu. 2008-01-28 13:19:00 +09:00
pm.h
poll.h
posix_types_32.h sh: Fix posix_types.h userspace breakage from sh64 merge. 2008-01-28 13:19:02 +09:00
posix_types_64.h sh: Fix posix_types.h userspace breakage from sh64 merge. 2008-01-28 13:19:02 +09:00
posix_types.h sh: Fix more user header breakage from sh64 integration. 2008-03-14 17:21:09 +09:00
processor_32.h sh: Fix occasional FPU register corruption under preempt. 2008-03-26 19:02:47 +09:00
processor_64.h sh: Fix occasional FPU register corruption under preempt. 2008-03-26 19:02:47 +09:00
processor.h sh: Add support for SH7723 CPU subtype. 2008-04-18 09:50:07 -07:00
ptrace.h sh: Share bug/debug traps across _32 and _64. 2008-01-28 13:18:50 +09:00
push-switch.h
r7780rp.h sh: r7780rp: Kill off unneded ifdefs for irq setup. 2008-05-08 19:51:44 +09:00
resource.h
rtc.h rtc: rtc-sh: Split out the CPU defs to asm/cpu/. 2008-01-28 13:18:58 +09:00
rts7751r2d.h sh: trapped io support for r2d V2 2008-02-14 14:22:09 +09:00
rwsem.h
scatterlist.h sh: Kill off pgtable.h from scatterlist.h. 2008-01-28 13:19:00 +09:00
sdk7780.h sh: Add support for SDK7780 board. 2008-01-28 13:19:04 +09:00
se7206.h
se7343.h
se7721.h sh: Add support for Solution Engine SH7721 board 2008-04-18 09:50:02 -07:00
se7722.h sh: SuperH KEYSC keypad data for Solution Engine 7722 2008-04-18 09:50:01 -07:00
se7751.h Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
se7780.h
se.h
sections.h sh: Preparation for uncached jumps through PMB. 2008-01-28 13:18:59 +09:00
segment.h
semaphore.h Generic semaphore implementation 2008-04-17 10:42:34 -04:00
sembuf.h
serial.h
setup.h sh: Move zero page param defs somewhere sensible. 2007-10-30 17:32:08 +09:00
sfp-machine.h
sh_bios.h
sh_keysc.h sh: SuperH KEYSC platform driver 2008-04-18 09:50:00 -07:00
shmbuf.h
shmin.h
shmparam.h
sigcontext.h sh: SH-2A FPU support. 2008-01-28 13:18:57 +09:00
siginfo.h
signal.h
smc37c93x.h
smp.h sh: convert to generic helpers for IPI function calls 2008-06-26 11:22:58 +02:00
snapgear.h
socket.h [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
sockios.h
sparsemem.h
spi.h sh: add spi header and r2d platform data V3 2008-01-28 16:24:46 +09:00
spinlock_types.h
spinlock.h
stat.h sh: Special layout for SH-5 stat.h and user.h. 2008-01-28 13:18:53 +09:00
statfs.h
string_32.h sh: Split out asm/string.h for sh32 and sh64. 2008-01-28 13:18:40 +09:00
string_64.h sh: comment tidying for sh64->sh migration. 2008-01-28 13:18:58 +09:00
string.h sh: Split out asm/string.h for sh32 and sh64. 2008-01-28 13:18:40 +09:00
system_32.h sh: trapped io support V2 2008-02-14 14:22:09 +09:00
system_64.h sh: Preparation for uncached jumps through PMB. 2008-01-28 13:18:59 +09:00
system.h sh: Create an sh debugfs root. 2008-04-18 09:50:01 -07:00
systemh7751.h Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
termbits.h sh: termios ioctl definitions 2008-02-14 14:22:07 +09:00
termios.h sh: termios ioctl definitions 2008-02-14 14:22:07 +09:00
thread_info.h remove __attribute_used__ 2008-01-28 23:21:18 +01:00
timer.h
timex.h
titan.h
tlb_64.h sh64: Fixup the nommu build. 2008-05-08 19:51:37 +09:00
tlb.h sh: asm/tlb.h needs linux/pagemap.h for CONFIG_SWAP=n. 2008-02-14 14:22:11 +09:00
tlbflush.h remove unused flush_tlb_pgtables 2007-10-19 11:53:34 -07:00
topology.h sh: Stub in cpu_to_node() and friends for NUMA build. 2008-05-08 13:40:17 +09:00
types.h sh: types: use <asm-generic/int-*.h> for the sh architecture 2008-05-02 16:18:40 -07:00
uaccess_32.h sh: Fix up __access_ok() check for nommu. 2008-04-18 09:50:02 -07:00
uaccess_64.h sh64: Fixup the nommu build. 2008-05-08 19:51:37 +09:00
uaccess.h sh: make copy_to/from_user() static inline 2008-02-14 14:22:09 +09:00
ubc.h
ucontext.h
unaligned.h kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
unistd_32.h sh: Wire up new timerfd syscalls. 2008-02-14 14:22:08 +09:00
unistd_64.h sh: Wire up new timerfd syscalls. 2008-02-14 14:22:08 +09:00
unistd.h sh: Split out syscall ABI for _32 and _64 variants. 2008-01-28 13:18:45 +09:00
user.h Sanitize the type of struct user.u_ar0 2008-02-07 08:42:30 -08:00
vga.h sh: Add a dummy vga.h. 2007-11-07 20:19:30 +09:00
watchdog.h
xor.h