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OpenCloudOS-Kernel/include/asm-s390
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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
..
Kbuild [S390] chsc headers userspace cleanup 2008-07-17 17:22:08 +02:00
airq.h [S390] cio: Allow adapter interrupt handlers per isc. 2008-07-14 10:02:10 +02:00
appldata.h [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
atomic.h [S390] Change atomic_read/set to inline functions with barrier semantics. 2007-08-22 13:51:49 +02:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
bitops.h generic: implement __fls on all 64-bit archs 2008-04-26 19:21:16 +02:00
bug.h Fix WARN_ON() on bitfield ops for all other archs 2007-08-01 20:45:38 -07:00
bugs.h [S390] check_bugs() should be inline. 2007-03-05 23:35:50 +01:00
byteorder.h [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
cache.h [S390] Get rid of ARCH_KMALLOC_MINALIGN. 2007-10-12 16:13:07 +02:00
cacheflush.h [S390] DEBUG_PAGEALLOC support for s390. 2008-02-05 16:50:54 +01:00
ccwdev.h [S390] cio: provide functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
ccwgroup.h ccwgroup: Unify parsing for group attribute. 2008-04-29 01:56:29 -04:00
checksum.h [S390] Fix TCP/UDP pseudo header checksum computation. 2007-03-26 20:43:46 +02:00
chpid.h [S390] chsc headers userspace cleanup 2008-07-17 17:22:08 +02:00
chsc.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
cio.h [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
cmb.h [S390] cio: Kerneldoc comments for cmf. 2007-10-12 16:12:59 +02:00
compat.h asm-*/compat.h: fix typo in comment 2008-02-03 16:32:51 +02:00
cpcmd.h [S390] cpcmd <-> __cpcmd calling issues 2006-12-04 15:40:30 +01:00
cpu.h [S390] Convert monitor calls to function calls. 2008-04-17 07:47:05 +02:00
cputime.h taskstats scaled time cleanup 2008-02-06 10:41:00 -08:00
current.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dasd.h [S390] include/asm-s390/: Spelling fixes 2008-01-26 14:11:25 +01:00
debug.h [S390] s390dbf: Use const char * for dbf name. 2008-05-15 16:52:39 +02:00
delay.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
device.h Driver core: add dev_archdata to struct device 2006-12-01 14:52:01 -08:00
diag.h [S390] vmur: fix diag14 exceptions with addresses > 2GB. 2007-08-22 13:51:47 +02:00
div64.h [S390] __div64_32 for 31 bit. 2006-09-28 16:55:39 +02:00
dma.h [S390] empty function defines. 2006-09-20 15:58:51 +02:00
ebcdic.h [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
elf.h [S390] Introduce user_regset accessors for s390 2008-07-14 10:02:09 +02:00
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
etr.h [S390] stp support. 2008-07-14 10:02:09 +02:00
extmem.h [S390] Remove code duplication from monreader / dcssblk. 2008-04-17 07:47:07 +02:00
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
fcx.h [S390] cio: provide functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
futex.h [S390] don't call handle_mm_fault() if in an atomic context. 2007-01-09 10:18:50 +01:00
hardirq.h [S390] Convert s390 to GENERIC_CLOCKEVENTS. 2008-04-17 07:47:05 +02:00
hugetlb.h hugetlb: modular state for hugetlb page size 2008-07-24 10:47:17 -07:00
idals.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
io.h [S390] remove __io_virt and mmiowb. 2007-02-12 15:49:57 +01:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h tty: s390 support for termios2. 2008-02-08 09:22:24 -08:00
ipcbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipl.h [S390] Extra Kernel Parameters via VMPARM 2008-07-14 10:02:14 +02:00
irq.h [PATCH] Make touch_nmi_watchdog imply touch_softlockup_watchdog on all archs 2006-09-29 09:18:05 -07:00
irq_regs.h [S390] irq change build fixes. 2006-10-06 16:38:35 +02:00
irqflags.h [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
isc.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
itcw.h [S390] cio: provide helper functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
kdebug.h x86: optimize page faults like all other achitectures and kill notifier cruft 2007-10-16 09:42:50 -07:00
kexec.h Unexport asm/page.h 2008-02-07 08:42:30 -08:00
kmap_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kprobes.h Kprobes: indicate kretprobe support in Kconfig 2008-03-04 16:35:11 -08:00
kvm.h KVM: s390: arch backend for the kvm kernel module 2008-04-27 12:00:42 +03:00
kvm_host.h KVM: s390: rename private structures 2008-07-20 12:42:37 +03:00
kvm_para.h s390: KVM guest: virtio device support, and kvm hypercalls 2008-04-27 12:00:51 +03:00
kvm_virtio.h s390: KVM guest: virtio device support, and kvm hypercalls 2008-04-27 12:00:51 +03:00
linkage.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
local.h [S390] local_t cleanup : use asm-generic/local.h. 2007-02-21 10:55:55 +01:00
lowcore.h s390: KVM preparation: address of the 64bit extint parm in lowcore 2008-04-27 12:00:41 +03:00
mathemu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mman.h [PATCH] add asm-generic/mman.h 2006-02-15 15:32:22 -08:00
mmu.h s390: KVM preparation: provide hook to enable pgstes in user pagetable 2008-04-27 12:00:40 +03:00
mmu_context.h s390: KVM preparation: provide hook to enable pgstes in user pagetable 2008-04-27 12:00:40 +03:00
module.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
monwriter.h [S390] Linux API for writing z/VM APPLDATA Monitor records. 2006-09-20 15:59:34 +02:00
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 [S390] Kconfig: use common Kconfig files for s390. 2007-05-10 15:46:08 +02:00
pci.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
percpu.h s390: use generic percpu linux-2.6.git 2008-01-30 23:27:58 +01:00
pgalloc.h [S390] dynamic page tables. 2008-02-09 18:24:41 +01:00
pgtable.h [S390] Add sched.h include to asm-s390/pgtable.h. 2008-07-14 10:02:14 +02:00
poll.h Consolidate asm/poll.h 2007-05-11 08:29:34 -07:00
posix_types.h [PATCH] FD_ZERO build fix 2007-01-11 18:18:22 -08:00
processor.h [S390] idle: remove idle notifier chain. 2008-07-14 10:02:13 +02:00
ptrace.h [S390] Introduce user_regset accessors for s390 2008-07-14 10:02:09 +02:00
qdio.h [S390] qdio: new qdio driver. 2008-07-17 17:22:10 +02:00
qeth.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
reset.h [S390] Convert memory detection into C code. 2007-02-05 21:18:37 +01:00
resource.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rwsem.h [S390] Use new style spinlock initializer in __RWSEM_INITIALIZER. 2008-01-26 14:11:15 +01:00
s390_ext.h [S390] remove packed attribute from ext_int_info_t. 2007-10-12 16:13:07 +02:00
s390_rdev.h [PATCH] s390: email-address change 2006-01-14 18:27:10 -08:00
scatterlist.h Add CONFIG_DEBUG_SG sg validation 2007-10-22 21:20:03 +02:00
schid.h [S390] chsc headers userspace cleanup 2008-07-17 17:22:08 +02:00
sclp.h [S390] Move memory detection code to own file. 2008-07-14 10:02:17 +02:00
sections.h [S390] nss: Free unused memory in kernel image. 2007-02-21 10:55:37 +01:00
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
setup.h [S390] qdio: new qdio driver. 2008-07-17 17:22:10 +02:00
sfp-machine.h [S390] Bogomips calculation for 64 bit. 2007-07-10 11:24:47 +02:00
sfp-util.h [S390] Bogomips calculation for 64 bit. 2007-07-10 11:24:47 +02:00
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 [PATCH] s390: sigcontext.h vs __user 2006-01-14 18:27:08 -08:00
siginfo.h [PATCH] consolidate SIGEV_PAD_SIZE 2005-05-01 08:59:08 -07:00
signal.h [PATCH] irq-flags: S390: Use the new IRQF_ constants 2006-07-02 13:58:48 -07:00
sigp.h [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
smp.h [S390] Convert machine feature detection code to C. 2008-04-30 13:38:47 +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 [S390] Add support for memory hot-add. 2008-07-14 10:02:16 +02:00
spinlock.h [S390] do local_irq_restore while spinning in spin_lock_irqsave. 2008-01-26 14:11:31 +01:00
spinlock_types.h [S390] Remove owner_pc member from raw_spinlock_t. 2008-01-26 14:11:14 +01:00
stat.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
statfs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
string.h [S390] Inline assembly cleanup. 2006-09-28 16:56:43 +02:00
suspend.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysinfo.h [S390] Add missing ifndef/define to include/asm-s390/sysinfo.h. 2008-04-30 13:38:43 +02:00
system.h [S390] Fix __ctl_load/__ctl_store inline assembly constraints 2008-06-10 10:03:28 +02:00
tape390.h [S390] Add crypto support for 3592 tape devices 2007-02-05 21:18:26 +01:00
termbits.h tty: s390 support for termios2. 2008-02-08 09:22:24 -08:00
termios.h tty: s390 support for termios2. 2008-02-08 09:22:24 -08:00
thread_info.h signals: s390: renumber TIF_RESTORE_SIGMASK 2008-04-30 08:29:37 -07:00
timer.h [S390] idle: remove idle notifier chain. 2008-07-14 10:02:13 +02:00
timex.h [S390] Fix a lot of sparse warnings. 2008-04-17 07:47:06 +02:00
tlb.h [S390] dynamic page tables. 2008-02-09 18:24:41 +01:00
tlbflush.h [S390] System z large page support. 2008-04-30 13:38:47 +02:00
todclk.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
topology.h [S390] Add topology_core_siblings to topology.h 2008-04-30 13:38:45 +02:00
types.h [S390] s390 types: make dma_addr_t 64 bit capable 2008-05-30 10:03:33 +02:00
uaccess.h [S390] noexec protection 2007-02-05 21:18:17 +01:00
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.h [S390] Wire up new timerfd syscalls. 2008-02-09 18:24:37 +01:00
user.h Sanitize the type of struct user.u_ar0 2008-02-07 08:42:30 -08:00
vtoc.h Use __uXX types for S390 DASD volume label definitions which are user-visible 2006-05-04 01:18:33 +01:00
xor.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zcrypt.h [S390] zcrypt: Add additional card IDs to CEX2C and CEX2A 2008-07-14 10:02:14 +02:00