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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
..
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
sh: Add maple bus support for the SEGA Dreamcast.
2007-09-21 15:55:55 +09:00
hd64465
fix file specification in comments
2006-10-03 23:01:26 +02:00
landisk
sh: landisk: Header cleanups.
2007-05-14 09:18:35 +09:00
sh03
sh: intc - remove redundant irq code for sh03, snapgear and titan
2007-09-21 11:57:47 +09:00
.gitignore
sh: Initial gitignore list
2006-10-03 13:16:15 +09:00
a.out.h
aout: move STACK_TOP[_MAX] to asm/processor.h
2008-02-08 09:22:29 -08:00
adc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
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
sh: Split out atomic ops logically.
2006-12-12 08:42:08 +09:00
atomic-llsc.h
sh: Split out atomic ops logically.
2006-12-12 08:42:08 +09:00
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
sh: Implement clk_round_rate() in the clock framework.
2007-07-20 13:29:09 +09:00
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
sh: Add 32-bit opcode feature CPU flag.
2007-05-09 01:35:01 +00:00
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
sh: Fix up the sh64 build.
2008-03-06 17:23:15 +09:00
device.h
Driver core: add dev_archdata to struct device
2006-12-01 14:52:01 -08:00
div64.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
dma-mapping.h
sh: declared coherent memory support V2
2008-01-28 13:19:04 +09:00
dma.h
sh: dma: Fix CONFIG_SYSFS=n build.
2007-09-21 11:57:53 +09:00
dmabrg.h
sh: SH7760 DMABRG support.
2007-05-09 17:36:15 +09:00
edosk7705.h
fix file specification in comments
2007-05-09 08:58:16 +02:00
elf.h
sh: Kill off superfluous __KERNEL__ check in asm/elf.h.
2008-01-28 13:19:00 +09:00
emergency-restart.h
[PATCH] Add emergency_restart()
2005-07-26 14:35:41 -07:00
entry-macros.S
sh: Fix up HAS_SR_RB typo in entry-macros.
2008-02-26 14:28:48 +09:00
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
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
[PATCH] sh: Simplistic clock framework
2006-01-16 23:15:28 -08:00
futex-irq.h
sh: Fix up futex implementation.
2007-06-18 13:58:32 +09:00
futex.h
asm-*/futex.h should include linux/uaccess.h
2008-04-30 08:29:52 -07:00
gpio.h
sh: Add gpio.h stubs for PFC definitions.
2007-09-21 11:57:49 +09:00
hardirq.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
hd64461.h
sh: include/asm-sh/: Spelling fixes.
2008-01-28 13:19:01 +09:00
heartbeat.h
sh: heartbeat driver update.
2007-09-21 11:57:51 +09:00
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
sh: x3proto: ILSEL IRQ support.
2007-09-21 11:57:48 +09:00
io_generic.h
[PATCH] sh: I/O routine cleanups and ioremap() overhaul
2006-01-16 23:15:28 -08:00
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
[PATCH] Generic ioctl.h
2006-01-10 08:01:34 -08:00
ioctls.h
sh: termios ioctl definitions
2008-02-14 14:22:07 +09:00
ipcbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
irq_regs.h
sh: Updates for IRQ handler changes.
2006-10-06 15:31:16 +09:00
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
kdump/kexec: calculate note size at compile time
2007-05-08 11:15:07 -07:00
kgdb.h
sh: use the common ascii hex helpers
2008-05-16 15:09:08 +09:00
kmap_types.h
Don't include linux/config.h from anywhere else in include/
2006-04-26 12:56:16 +01:00
kvm.h
kvm: provide kvm.h for all architecture: fixes headers_install
2008-04-02 15:28:18 -07:00
lboxre2.h
sh: Tidy up L-BOX area5 addresses.
2007-05-07 02:11:55 +00:00
linkage.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
local.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
machvec.h
remove __attribute_used__
2008-01-28 23:21:18 +01:00
magicpanelr2.h
sh: Magic Panel R2 board support.
2007-09-21 11:57:54 +09:00
mc146818rtc.h
sh: Kill off the rest of the legacy rtc mess.
2006-09-27 17:45:01 +09:00
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
[PATCH] add asm-generic/mman.h
2006-02-15 15:32:22 -08:00
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
sh: Use a per-cpu ASID cache.
2007-02-13 10:54:45 +09:00
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
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mutex.h
[PATCH] mutex subsystem, add default include/asm-*/mutex.h files
2006-01-09 15:59:19 -08:00
namei.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -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
sh: Always use CONFIG_HZ for HZ.
2008-01-28 13:19:01 +09:00
parport.h
sh: Add parport stub for SuperIO ports.
2007-07-07 07:28:11 +09:00
pci.h
sh: Get the SH-5 PCI support building.
2008-01-28 13:18:55 +09:00
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_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
sh: APM/PM support.
2006-09-27 16:20:22 +09:00
poll.h
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
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
sh: push-switch fixups for work_struct API damage.
2006-12-12 08:42:07 +09:00
r7780rp.h
sh: r7780rp: Kill off unneded ifdefs for irq setup.
2008-05-08 19:51:44 +09:00
resource.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
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
sh: Warn against direct inclusion of <asm/rwsem.h>.
2007-06-08 11:56:31 +09:00
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
sh: SE7206 build fixes.
2006-12-06 10:45:37 +09:00
se7343.h
sh: Solution Engine SH7343 board support.
2006-09-27 18:09:34 +09:00
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
sh: SH7780 Solution Engine board support.
2007-05-07 02:11:55 +00:00
se.h
sh: Solution Engine SH7705 board and CPU updates.
2007-05-07 02:11:56 +00:00
sections.h
sh: Preparation for uncached jumps through PMB.
2008-01-28 13:18:59 +09:00
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
sh: rts7751r2d board updates.
2007-02-15 18:20:52 +09:00
setup.h
sh: Move zero page param defs somewhere sensible.
2007-10-30 17:32:08 +09:00
sfp-machine.h
sh: Kill off remaining config.h references.
2006-10-03 13:19:02 +09:00
sh_bios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sh_keysc.h
sh: SuperH KEYSC platform driver
2008-04-18 09:50:00 -07:00
shmbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
shmin.h
sh: Add some missing board headers.
2006-10-19 17:31:22 +09:00
shmparam.h
sh: Fixup SHMLBA definition for SH7705.
2006-09-27 15:29:18 +09:00
sigcontext.h
sh: SH-2A FPU support.
2008-01-28 13:18:57 +09:00
siginfo.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
signal.h
[PATCH] irq-flags: SH: Use the new IRQF_ constants
2006-07-02 13:58:48 -07:00
smc37c93x.h
sh: Move smc37c93x.h for SystemH board use.
2006-09-27 11:16:20 +09:00
smp.h
sh: convert to generic helpers for IPI function calls
2008-06-26 11:22:58 +02:00
snapgear.h
sh: intc - remove redundant irq code for sh03, snapgear and titan
2007-09-21 11:57:47 +09:00
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
sh: sparsemem support.
2007-06-08 02:43:43 +00:00
spi.h
sh: add spi header and r2d platform data V3
2008-01-28 16:24:46 +09:00
spinlock_types.h
sh: Overhaul spinlocks and rwlocks for SH-4A SMP.
2007-09-21 11:57:51 +09:00
spinlock.h
sh: Overhaul spinlocks and rwlocks for SH-4A SMP.
2007-09-21 11:57:51 +09:00
stat.h
sh: Special layout for SH-5 stat.h and user.h.
2008-01-28 13:18:53 +09:00
statfs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
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
sh: clockevent/clocksource/hrtimers/nohz TMU support.
2007-05-09 17:33:24 +09:00
timex.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
titan.h
sh: sh775x/titan fixes for irq header changes.
2006-12-06 12:05:02 +09:00
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
sh: remove support for sh7300 and solution engine 7300
2007-07-26 15:37:57 +09:00
ucontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
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
sh: Various cosmetic cleanups.
2006-09-27 12:31:01 +09:00
xor.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00