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
..
dec	[MIPS] DECstation: Document more MB ASIC register bits	2008-07-15 18:44:30 +01:00
emma2rh
fw	[MIPS] CFE: Make code remotely resemble Linux code.	2008-01-29 10:14:55 +00:00
ip32
lasat	[MIPS] Remove mips_machtype for LASAT machines	2008-07-15 18:44:39 +01:00
mach-au1x00	au1xmmc: remove db1200 board code, rewrite probe.	2008-07-15 14:14:43 +02:00
mach-bcm47xx
mach-cobalt	[MIPS] remove unneeded button check for reset	2008-01-29 10:15:00 +00:00
mach-db1x00	[MIPS] Alchemy: remove unused MMC macros from db1x00 header.	2008-07-15 18:44:30 +01:00
mach-dec
mach-emma2rh
mach-excite	include/asm-mips/: Spelling fixes	2008-02-03 16:57:20 +02:00
mach-generic	[MIPS] make fallback gpio.h gpiolib-friendly	2008-04-28 17:14:31 +01:00
mach-ip22
mach-ip27	[MIPS] IP27: Fix build bug due to missing include	2008-04-28 17:14:32 +01:00
mach-ip28	[MIPS] IP28 support	2008-01-29 10:14:58 +00:00
mach-ip32
mach-jazz
mach-lasat	[MIPS] Lasat: fix LASAT_CASCADE_IRQ	2008-03-12 14:14:42 +00:00
mach-lemote
mach-malta	[MIPS] Malta: Cleanup organization of code into directories.	2008-07-15 18:44:34 +01:00
mach-mipssim
mach-pb1x00	[MIPS] Pb1200/DBAu1200 code style cleanup	2008-05-12 16:46:55 +01:00
mach-pnx8550
mach-rc32434	[MIPS] Routerboard 532: Support for base system	2008-07-20 14:38:18 +01:00
mach-rm
mach-sibyte
mach-tx39xx	[MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xx	2008-07-15 18:44:38 +01:00
mach-tx49xx
mach-vr41xx	[MIPS] cmbvr4133: Remove support	2008-07-15 18:44:36 +01:00
mach-wrppmc	include/asm-mips/: Spelling fixes	2008-02-03 16:57:20 +02:00
mach-yosemite
mips-boards	[MIPS] Remove unused maltasmp.h.	2008-07-20 14:38:22 +01:00
pci
pmc-sierra/msp71xx	[MIPS] Delete CONFIG_MSP_FPGA	2008-01-29 10:15:01 +00:00
sgi	include/asm-mips/: Spelling fixes	2008-02-03 16:57:20 +02:00
sibyte	[MIPS] Remove CONFIG_SIBYTE_PT{1120,1125,SWARM}	2008-01-29 10:14:58 +00:00
sn	include/asm-mips/: Spelling fixes	2008-02-03 16:57:20 +02:00
txx9	[MIPS] TXx9: Fix some sparse warnings	2008-07-20 14:38:21 +01:00
vr41xx	[MIPS] cmbvr4133: Remove support	2008-07-15 18:44:36 +01:00
xtalk
a.out.h	aout: move STACK_TOP[_MAX] to asm/processor.h	2008-02-08 09:22:29 -08:00
abi.h
addrspace.h	[MIPS] Put cast inside macro instead of all the callers	2008-01-29 10:14:55 +00:00
asm.h	[MIPS] IP28: added cache barrier to assembly routines	2008-01-29 10:14:58 +00:00
asmmacro-32.h
asmmacro-64.h
asmmacro.h
atomic.h	[MIPS] Fix bug in atomic_sub_if_positive.	2008-07-04 08:22:15 +01:00
auxvec.h
barrier.h	[MIPS] IP28: switch to "normal" mode after PROM no longer needed	2008-07-15 18:44:32 +01:00
bcache.h
bitops.h	[MIPS] Tinker with constraints in <asm/atomic.h> to fix build error.	2008-07-20 14:38:18 +01:00
bootinfo.h	[MIPS] Routerboard 532: Support for base system	2008-07-20 14:38:18 +01:00
branch.h
break.h
bug.h
bugs.h	[MIPS] R4000/R4400 errata workarounds	2008-01-29 10:14:54 +00:00
byteorder.h
cache.h
cachectl.h
cacheflush.h	[MIPS] Handle aliases in vmalloc correctly.	2008-04-07 22:31:04 +01:00
cacheops.h
checksum.h
cmp.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
cmpxchg.h	Add cmpxchg64 and cmpxchg64_local to mips	2008-02-07 08:42:30 -08:00
compat-signal.h
compat.h	asm-*/compat.h: fix typo in comment	2008-02-03 16:32:51 +02:00
compiler.h	[MIPS] Add empty argument parenthesis to GCC_IMM_ASM	2008-05-12 16:46:52 +01:00
cpu-features.h
cpu-info.h	[MIPS] vpe_id is required for VSMP and SMTC builds	2008-06-16 15:14:48 +01:00
cpu.h	[MIPS] modify the MIPS CPU classfication	2008-07-15 18:44:28 +01:00
cputime.h
current.h
debug.h
delay.h	[MIPS] R4000/R4400 daddiu erratum workaround	2008-01-29 10:14:55 +00:00
device.h
div64.h	rename div64_64 to div64_u64	2008-05-01 08:03:58 -07:00
dma-mapping.h
dma.h	[MIPS] IP28 support	2008-01-29 10:14:58 +00:00
ds1286.h
ds1287.h	[MIPS] DS1287: Add clockevent driver	2008-04-28 17:14:32 +01:00
dsp.h
edac.h
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
errno.h
fb.h
fcntl.h
fixmap.h	[MIPS] fixmap: delete unused __set_fixmap, set_fixmap and set_fixmap_nocache	2008-01-29 10:15:00 +00:00
floppy.h
fpregdef.h
fpu_emulator.h
fpu.h	[MIPS] Fix missing prototypes in asm/fpu.h	2008-07-20 14:38:17 +01:00
futex.h	asm-*/futex.h should include linux/uaccess.h	2008-04-30 08:29:52 -07:00
gcmpregs.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
gdb-stub.h
gic.h	[MIPS] Malta: Fix build errors for 64-bit kernels	2008-06-16 15:14:48 +01:00
gpio.h
gt64120.h
hardirq.h
hazards.h
highmem.h	[MIPS] Fix yosemite build error	2008-03-12 14:14:42 +00:00
hw_irq.h
i8253.h
i8259.h
ide.h
inst.h
io.h	[MIPS] Remove obsolete isa_slot_offset	2008-07-15 18:44:29 +01:00
ioctl.h
ioctls.h
ipcbuf.h
irq_cpu.h
irq_gt641xx.h
irq_regs.h
irq.h
irqflags.h
isadep.h
jazz.h
jazzdma.h
Kbuild
kdebug.h
kexec.h
kmap_types.h
kspd.h
kvm.h	kvm: provide kvm.h for all architecture: fixes headers_install	2008-04-02 15:28:18 -07:00
linkage.h
local.h
m48t35.h
m48t37.h
mc146818-time.h
mc146818rtc.h
mips_mt.h
mipsmtregs.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
mipsprom.h	[MIPS] RM: Collected changes	2008-01-29 10:14:59 +00:00
mipsregs.h	[MIPS] Add accessors for random register.	2008-06-05 18:13:15 +01:00
mman.h
mmu_context.h
mmu.h
mmzone.h
module.h
msc01_ic.h
msgbuf.h
mutex.h
namei.h	[MIPS] IRIX: Goodbye and thanks for all the fish	2008-07-15 18:44:30 +01:00
nile4.h
paccess.h
page.h	PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures	2008-07-24 10:47:21 -07:00
param.h
parport.h
pci.h	[MIPS] PCI: Make the pcibios_max_latency variable static	2008-07-20 14:38:17 +01:00
percpu.h
pgalloc.h	CONFIG_HIGHPTE vs. sub-page page tables.	2008-02-08 09:22:42 -08:00
pgtable-32.h	[MIPS] All MIPS32 processors support64-bit physical addresses.	2008-04-28 17:14:25 +01:00
pgtable-64.h
pgtable-bits.h	[MIPS] Fix build for PNX platforms.	2008-06-16 15:14:47 +01:00
pgtable.h	[MIPS] Add missing braces to pte_mkyoung	2008-06-05 18:13:14 +01:00
pmon.h
poll.h
posix_types.h	asm-*/posix_types.h: scrub __GLIBC__	2008-02-08 09:22:34 -08:00
prefetch.h
processor.h	PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures	2008-07-24 10:47:21 -07:00
ptrace.h
r4k-timer.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
r4kcache.h	[MIPS] Use real cache invalidate	2008-01-29 10:14:57 +00:00
reboot.h
reg.h
regdef.h
resource.h
rm9k-ocd.h
rtlx.h	[MIPS] Fix typo in header guard	2008-06-05 18:13:16 +01:00
scatterlist.h
seccomp.h
sections.h
segment.h
semaphore.h	Generic semaphore implementation	2008-04-17 10:42:34 -04:00
sembuf.h
serial.h
setup.h	[MIPS] don't leak setup_early_printk() in userspace header	2008-07-20 14:38:19 +01:00
sgialib.h
sgiarcs.h
sgidefs.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h	[MIPS] IRIX: Goodbye and thanks for all the fish	2008-07-15 18:44:30 +01:00
sim.h
smp-ops.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
smp.h	mips: convert to generic helpers for IPI function calls	2008-06-26 11:22:57 +02:00
smtc_ipi.h	[MIPS] SMTC: Fix build error.	2008-01-22 00:35:23 +00:00
smtc_proc.h
smtc.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
smvp.h	[MIPS] Add support for MIPS CMP platform.	2008-04-28 17:14:26 +01:00
sni.h	[MIPS] RM: fix EISA=n compilation	2008-02-19 17:01:34 +00:00
socket.h	[NET]: Introducing socket mark socket option.	2008-01-31 19:27:19 -08:00
sockios.h
sparsemem.h
spinlock_types.h
spinlock.h
stackframe.h	[MIPS] R4000/R4400 daddiu erratum workaround	2008-01-29 10:14:55 +00:00
stacktrace.h
stat.h
statfs.h
string.h
suspend.h
sysmips.h
system.h
termbits.h
termios.h
thread_info.h
time.h	[MIPS] Clocksource: Only install r4k counter as clocksource if present.	2008-03-12 14:14:42 +00:00
timex.h
titan_dep.h
tlb.h
tlbdebug.h
tlbflush.h
topology.h	[MIPS] MT: Scheduler support for SMT	2008-01-29 10:14:57 +00:00
traps.h	[MIPS] Remove board_watchpoint_handler	2008-07-15 18:44:29 +01:00
txx9irq.h
txx9pio.h	[MIPS] generic txx9 gpio support	2008-04-28 17:14:31 +01:00
txx9tmr.h
types.h	fix asm-mips/types.h syntax error	2008-05-04 14:45:55 -07:00
uaccess.h	[MIPS] R4000/R4400 daddiu erratum workaround	2008-01-29 10:14:55 +00:00
ucontext.h
unaligned.h	kernel: Move arches to use common unaligned access	2008-04-29 08:06:27 -07:00
unistd.h	[MIPS] Wire up the timerfd_*() o32 system calls	2008-02-19 17:01:31 +00:00
user.h	Sanitize the type of struct user.u_ar0	2008-02-07 08:42:30 -08:00
vga.h
vpe.h
war.h	[MIPS] R4000/R4400 errata workarounds	2008-01-29 10:14:54 +00:00
wbflush.h
xor.h