Andrea Righi 27ac792ca0 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures ...

On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit
boundary. For example:

	u64 val = PAGE_ALIGN(size);

always returns a value < 4GB even if size is greater than 4GB.

The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for
example):

#define PAGE_SHIFT      12
#define PAGE_SIZE       (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK       (~(PAGE_SIZE-1))
...
#define PAGE_ALIGN(addr)       (((addr)+PAGE_SIZE-1)&PAGE_MASK)

The "~" is performed on a 32-bit value, so everything in "and" with
PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary.
Using the ALIGN() macro seems to be the right way, because it uses
typeof(addr) for the mask.

Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in
include/linux/mm.h.

See also lkml discussion: http://lkml.org/lkml/2008/6/11/237

[akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c]
[akpm@linux-foundation.org: fix v850]
[akpm@linux-foundation.org: fix powerpc]
[akpm@linux-foundation.org: fix arm]
[akpm@linux-foundation.org: fix mips]
[akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c]
[akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c]
[akpm@linux-foundation.org: fix powerpc]
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2008-07-24 10:47:21 -07:00

..

arch-aaec2000

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

arch-at91

mmc: at91_mci: avoid timeouts

2008-07-15 14:14:42 +02:00

arch-cl7500

[ARM] Use new get_irqnr_preamble

2007-05-12 15:25:50 +01:00

arch-clps711x

[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user

2007-02-17 15:04:29 +00:00

arch-davinci

[ARM] 4634/1: DaVinci GPIO header build fix

2007-10-31 15:21:52 +00:00

arch-ebsa110

[ARM] Use new get_irqnr_preamble

2007-05-12 15:25:50 +01:00

arch-ebsa285

[ARM] 5015/1: arm: remove ARCH_CO285

2008-05-02 23:44:57 +01:00

arch-ep93xx

[ARM] 4988/1: Add GPIO lib support to the EP93xx

2008-04-19 14:01:43 +01:00

arch-h720x

[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user

2007-02-17 15:04:29 +00:00

arch-imx

Merge branch 'imx' into devel

2008-07-10 16:41:50 +01:00

arch-integrator

[ARM] Remove Integrator/CP SMP platform support

2007-05-16 15:35:26 +01:00

arch-iop13xx

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

2008-07-23 12:03:18 -07:00

arch-iop32x

[ARM] 5160/1: IOP3XX: gpio/gpiolib support

2008-07-09 23:31:42 +01:00

arch-iop33x

[ARM] 5160/1: IOP3XX: gpio/gpiolib support

2008-07-09 23:31:42 +01:00

arch-ixp4xx

[ARM] 4874/2: ixp4xx: Add support for the Freecom FSG-3 board

2008-04-04 10:03:59 +01:00

arch-ixp23xx

[ARM] 4680/1: parentheses around NR_IRQS definition

2007-11-29 20:56:57 +00:00

arch-ixp2000

[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user

2007-02-17 15:04:29 +00:00

arch-kirkwood

[ARM] Kirkwood: support L2 writeback mode

2008-06-30 14:25:24 -04:00

arch-ks8695

[ARM] 4981/1: [KS8695] Simple LED driver

2008-04-17 15:58:25 +01:00

arch-l7200

[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user

2007-02-17 15:04:29 +00:00

arch-lh7a40x

[ARM] 4248/1: lh7a40x: fix missing definitions for get_irqnr_preamble

2007-03-08 13:33:57 +00:00

arch-loki

[ARM] add Marvell Loki (88RC8480) SoC support

2008-06-22 22:45:02 +02:00

arch-msm

[ARM] fix header guards

2008-07-03 16:39:56 +01:00

arch-mv78xx0

[ARM] add Marvell 78xx0 ARM SoC support

2008-06-22 22:45:10 +02:00

arch-mxc

i.MX27 family: Add the Phytec PCM970 evaluation board

2008-07-05 10:03:01 +02:00

arch-netx

[ARM] 4329/1: fix position of NETX_SYSTEM_REG

2007-05-03 20:22:49 +01:00

arch-ns9xxx

ns9xxx: fix assembler version of __REG2 to be consistent with the C version

2008-05-30 10:46:11 +02:00

arch-omap

ARM: OMAP2: Clock: New OMAP2/3 DPLL rate rounding algorithm

2008-07-03 12:24:46 +03:00

arch-orion5x

[ARM] Orion: add a separate BRIDGE_INT_TIMER1_CLR define

2008-06-22 22:45:01 +02:00

arch-pnx4008

[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user

2007-02-17 15:04:29 +00:00

arch-pxa

[ARM] Merge most of the PXA work for initial merge

2008-07-14 23:34:46 +01:00

arch-realview

RealView: Add uncompressing support for PB1176

2008-04-18 22:43:16 +01:00

arch-rpc

[ARM] rpc: deprecate __ioaddr() and __ioaddrc() helpers

2008-07-03 14:25:58 +01:00

arch-s3c2400

[ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h

2007-07-22 17:06:04 +01:00

arch-s3c2410

MMC: S3C24XX MMC/SD driver.

2008-07-15 14:14:46 +02:00

arch-sa1100

[ARM] 5025/2: fix collie cpu initialisation

2008-05-22 14:03:20 +01:00

arch-shark

[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user

2007-02-17 15:04:29 +00:00

arch-versatile

fix typo 'the same the\>'

2008-02-03 14:59:11 +02:00

hardware

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

2008-07-23 12:03:18 -07:00

mach

Merge branch 'pxa' into devel

2008-07-13 12:05:49 +01:00

plat-orion

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

2008-07-23 12:03:18 -07:00

plat-s3c

[ARM] S3C24XX: Add PWM timer MUX defines

2008-07-03 16:51:23 +01:00

plat-s3c24xx

MMC: S3C24XX: Add media presence test to request handling.

2008-07-15 14:14:48 +02:00

.gitignore

[ARM] 4216/1: add .gitignore entries for ARM specific files

2007-02-17 11:26:41 +00:00

a.out-core.h

aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT

2008-02-08 09:22:30 -08:00

a.out.h

aout: move STACK_TOP[_MAX] to asm/processor.h

2008-02-08 09:22:29 -08:00

assembler.h

[ARM] cache align destination pointer when copying memory for some processors

2008-06-22 22:44:38 +02:00

atomic.h

atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency

2007-05-08 11:15:20 -07:00

auxvec.h

[PATCH] auxiliary vector cleanups

2005-09-07 16:57:21 -07:00

bitops.h

ext4: Add ext4_find_next_bit()

2008-01-28 23:58:27 -05:00

bug.h

[ARM] 3983/2: remove unused argument to __bug()

2006-12-07 22:38:09 +00:00

bugs.h

[ARM] nommu: adjust headers for !MMU ARM systems

2006-06-28 17:59:45 +01:00

byteorder.h

[ARM] Fix byte order macros for Thumb

2006-06-19 15:35:36 +01:00

cache.h

[PATCH] Kill L1_CACHE_SHIFT_MAX

2006-01-08 20:13:39 -08:00

cacheflush.h

Merge branches 'at91', 'dyntick', 'ep93xx', 'iop', 'ixp', 'misc', 'orion', 'omap-reviewed', 'rpc', 'rtc' and 's3c' into devel

2008-07-10 16:38:50 +01:00

checksum.h

[ARM] Improve csum_fold, cleanup csum_tcpudp_magic()

2007-02-06 16:46:46 +00:00

cnt32_to_63.h

[ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter

2006-12-07 16:06:45 +00:00

cpu-multi32.h

Add a prefetch abort handler

2008-04-18 22:43:07 +01:00

cpu-single.h

[ARM] Unuse another Linux PTE bit

2006-12-13 14:34:43 +00:00

cpu.h

Don't include linux/config.h from anywhere else in include/

2006-04-26 12:56:16 +01:00

cputime.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

current.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

delay.h

[ARM] 3346/1: Fix udelay() for HZ values different from 100

2006-03-21 22:06:07 +00:00

device.h

[ARM] Add a reference from struct device to the dma bounce info

2007-02-12 10:28:24 +00:00

div64.h

rename div64_64 to div64_u64

2008-05-01 08:03:58 -07:00

dma-mapping.h

arm: sg fallout

2007-10-23 12:37:59 +02:00

dma.h

Don't include linux/config.h from anywhere else in include/

2006-04-26 12:56:16 +01:00

domain.h

[ARM] 4127/1: Flush the prefetch buffer after changing the DACR

2007-02-08 14:49:18 +00:00

ecard.h

[ARM] rpc: ecard: remove deprecated ecard_address() and relatives

2008-07-03 14:25:58 +01:00

elf.h

Cleanup asm/{elf,page,user}.h: #ifdef __KERNEL__ is no longer needed

2008-02-07 08:42:30 -08:00

emergency-restart.h

[PATCH] Add emergency_restart()

2005-07-26 14:35:41 -07:00

errno.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

fb.h

fbdev: detect primary display device

2007-07-17 10:23:11 -07:00

fcntl.h

[PATCH] Clean up struct flock64 definitions

2005-09-07 16:57:38 -07:00

fiq.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

flat.h

[ARM] nommu: fix breakage caused by f9720205d1f847cb59e197e851b5276425363f6b

2007-10-31 15:21:42 +00:00

floppy.h

cleanup floppy.h

2007-10-17 08:42:55 -07:00

fpstate.h

[ARM] 4583/1: ARMv7: Add VFPv3 support

2008-01-26 14:41:28 +00:00

ftrace.h

ftrace: store mcount address in rec->ip

2008-06-23 22:10:56 +02:00

futex.h

[PATCH] consolidate asm/futex.h

2006-01-08 20:13:39 -08:00

glue.h

Add a prefetch abort handler

2008-04-18 22:43:07 +01:00

gpio.h

[PATCH] GPIO core

2007-02-12 09:48:34 -08:00

hardirq.h

Don't include linux/config.h from anywhere else in include/

2006-04-26 12:56:16 +01:00

hardware.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

hw_irq.h

[ARM] dyntick: Remove obsolete and unused ARM dyntick support

2008-05-12 17:39:14 +01:00

hwcap.h

ARMv7: Add support for the ThumbEE state saving/restoring

2008-04-18 22:43:06 +01:00

ide.h

ide: remove ide_default_io_ctl() macro

2008-04-18 00:46:34 +02:00

io.h

endianness annotations in arm io.h

2007-10-14 12:41:52 -07:00

ioctl.h

[PATCH] Generic ioctl.h

2006-01-10 08:01:34 -08:00

ioctls.h

[ARM] enable arbitary speed tty ioctls and split input/output speed

2007-05-28 23:07:34 +01:00

ipcbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

irq_regs.h

Initial blind fixup for arm for irq changes

2006-10-06 10:59:54 -07:00

irq.h

[ARM] 4073/1: Prevent s3c24xx drivers from including asm/arch/hardware.h and asm/arch/irqs.h

2006-12-30 17:05:07 +00:00

irqflags.h

[ARM] Add ARM irqtrace support

2006-09-20 14:58:35 +01:00

Kbuild

[ARM] 4473/2: Take the HWCAP definitions out of the elf.h file

2007-07-12 16:20:15 +01:00

kdebug.h

move die notifier handling to common code

2007-05-08 11:15:04 -07:00

kexec.h

There is no need to have BOOT_PARAMS_SIZE known outside of atags.c

2008-05-30 10:30:05 +02:00

kgdb.h

kgdb: support for ARCH=arm

2008-07-23 11:30:15 -05:00

kmap_types.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

kprobes.h

ftrace: export kretprobe_trampoline for function tracer

2008-06-02 13:32:10 +02:00

kvm.h

kvm: provide kvm.h for all architecture: fixes headers_install

2008-04-02 15:28:18 -07:00

leds.h

Don't include linux/config.h from anywhere else in include/

2006-04-26 12:56:16 +01:00

limits.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

linkage.h

[ARM] VFP: fix section mismatch error

2007-06-10 12:22:20 +01:00

local.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

locks.h

[ARM] 3019/1: fix wrong comments

2005-10-18 07:51:34 +01:00

mc146818rtc.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

memory.h

[ARM] Add initial sparsemem support

2008-04-19 11:36:48 +01:00

mman.h

[PATCH] add asm-generic/mman.h

2006-02-15 15:32:22 -08:00

mmu_context.h

[ARM] 5092/1: Fix the I-cache invalidation on ARMv6 and later CPUs

2008-07-03 16:39:57 +01:00

mmu.h

[ARM] ARMv6: add CPU_HAS_ASID configuration

2007-05-17 10:19:23 +01:00

mmzone.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

module.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

msgbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mtd-xip.h

[MTD] XIP cleanup

2005-07-07 16:50:16 +02:00

mutex.h

misc: removal of final callers using fastcall

2008-02-08 09:22:31 -08:00

namei.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

nwflash.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

page-nommu.h

PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures

2008-07-24 10:47:21 -07:00

page.h

PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures

2008-07-24 10:47:21 -07:00

param.h

[ARM] Move HZ definition into Kconfig

2006-03-21 22:05:45 +00:00

parport.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pci.h

[ARM] 4577/1: ITE 8152 PCI bridge support

2007-10-15 18:53:59 +01:00

percpu.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pgalloc.h

CONFIG_HIGHPTE vs. sub-page page tables.

2008-02-08 09:22:42 -08:00

pgtable-hwdef.h

[ARM] Set bit 4 on section mappings correctly depending on CPU

2006-06-29 18:24:21 +01:00

pgtable-nommu.h

[ARM] 5060/1: remove unnecessary include of asm/io.h

2008-06-01 11:22:25 +01:00

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

asm-*/posix_types.h: scrub __GLIBC__

2008-02-08 09:22:34 -08:00

proc-fns.h

[ARM] include/asm-arm - use angle brackets for includes

2008-03-06 12:18:18 +00:00

processor.h

aout: move STACK_TOP[_MAX] to asm/processor.h

2008-02-08 09:22:29 -08:00

procinfo.h

[ARM] Move HWCAP_* definitions to asm/elf.h

2006-11-30 12:24:46 +00:00

ptrace.h

[ARM] 4474/1: Do not check the PSR_F_BIT in valid_user_regs

2007-07-12 16:20:52 +01:00

resource.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

scatterlist.h

Add CONFIG_DEBUG_SG sg validation

2007-10-22 21:20:03 +02:00

sections.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

segment.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

semaphore.h

Generic semaphore implementation

2008-04-17 10:42:34 -04:00

sembuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

serial.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

setup.h

[ARM] use __used attribute

2007-05-30 13:15:06 +01:00

shmbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

shmparam.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sigcontext.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

siginfo.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

signal.h

[PATCH] ARM: fixup irqflags breakage after ARM genirq merge

2006-07-02 17:29:22 -07:00

sizes.h

[ARM] 4372/1: Define byte sizes in asm-arm/sizes.h

2007-05-11 21:07:58 +01:00

smp.h

arm: convert to generic helpers for IPI function calls

2008-06-26 11:22:57 +02:00

socket.h

[NET]: Introducing socket mark socket option.

2008-01-31 19:27:19 -08:00

sockios.h

[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution

2007-04-25 22:24:04 -07:00

sparsemem.h

[ARM] Add initial sparsemem support

2008-04-19 11:36:48 +01:00

spinlock_types.h

[PATCH] spinlock consolidation

2005-09-10 10:06:21 -07:00

spinlock.h

[ARM] 5067/1: _raw_write_can_lock macro bugfix

2008-06-02 13:44:17 +01:00

stat.h

[ARM] 3106/2: ARM EABI: some syscall adjustments

2006-01-14 16:32:12 +00:00

statfs.h

[ARM] 3108/2: old ABI compat: statfs64 and fstatfs64

2006-01-14 16:35:03 +00:00

string.h

[PATCH] ARM: 2653/1: Fix memset and memzero macro double-reference of parameters

2005-04-25 23:40:05 +01:00

suspend.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

system.h

[ARM] 5053/1: define before use of processor_id

2008-05-23 13:50:08 +01:00

termbits.h

[ARM] enable arbitary speed tty ioctls and split input/output speed

2007-05-28 23:07:34 +01:00

termios.h

[ARM] enable arbitary speed tty ioctls and split input/output speed

2007-05-28 23:07:34 +01:00

therm.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

thread_info.h

ARMv7: Add support for the ThumbEE state saving/restoring

2008-04-18 22:43:06 +01:00

thread_notify.h

[ARM] Add thread_notify infrastructure

2006-06-22 10:24:18 +01:00

timex.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

tlb.h

add mm argument to pte/pmd/pud/pgd_free

2008-02-05 09:44:18 -08:00

tlbflush.h

[ARM] Feroceon: L2 cache support

2008-06-22 22:45:04 +02:00

topology.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

traps.h

kgdb: support for ARCH=arm

2008-07-23 11:30:15 -05:00

types.h

arm: types: use <asm-generic/int-*.h> for the arm architecture

2008-05-02 16:18:20 -07:00

uaccess.h

Storage class should be before const qualifier

2007-02-17 20:11:19 +01:00

ucontext.h

[ARM] 3664/1: crunch: add signal frame save/restore

2006-06-28 17:54:59 +01:00

unaligned.h

kernel: Move arches to use common unaligned access

2008-04-29 08:06:27 -07:00

unistd.h

[ARM] 4852/1: Add timerfd_create, timerfd_settime and timerfd_gettime syscall entries

2008-04-19 11:28:06 +01:00

user.h

Sanitize the type of struct user.u_ar0

2008-02-07 08:42:30 -08:00

vfp.h

[ARM] 4583/1: ARMv7: Add VFPv3 support

2008-01-26 14:41:28 +00:00

vfpmacros.h

[ARM] 4583/1: ARMv7: Add VFPv3 support

2008-01-26 14:41:28 +00:00

vga.h

[PATCH] vgacon: make VGA_MAP_MEM take size, remove extra use

2006-06-22 15:05:58 -07:00

xor.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00