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linux/include
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Chen Gang d127906192 UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn() 
(cherry pick from commit 8f235d1a3e)

__phys_to_pfn and __pfn_to_phys are symmetric, PHYS_PFN and PFN_PHYS are
semmetric:

 - y = (phys_addr_t)x << PAGE_SHIFT

 - y >> PAGE_SHIFT = (phys_add_t)x

 - (unsigned long)(y >> PAGE_SHIFT) = x

[akpm@linux-foundation.org: use macro arg name `x']
[arnd@arndb.de: include linux/pfn.h for PHYS_PFN definition]
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 20045882
Bug: 19198045
Change-Id: If968d2246b381b9e5d6446e9d6d9fa45bb718e91
2017-04-10 13:23:34 +05:30
..
acpi Merge branch 'acpi-pci' 2015-11-07 01:30:10 +01:00
asm-generic UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn() 2017-04-10 13:23:34 +05:30
clocksource arm64: KVM: Implement timer save/restore 2016-11-09 22:15:41 +08:00
crypto ANDROID: crypto: gf128mul - Add ble multiplication functions 2017-04-10 13:12:16 +05:30
drm drm/prime: Pass the right module owner through to dma_buf_export() 2016-10-31 04:13:57 -06:00
dt-bindings ARM: DT updates for v4.4 2015-11-10 15:06:26 -08:00
keys
kvm KVM: arm/arm64: vgic-v3: Make the LR indexing macro public 2016-11-09 22:15:40 +08:00
linux UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn() 2017-04-10 13:23:34 +05:30
math-emu
media videobuf2-core: Check user space planes array in dqbuf 2016-05-04 14:48:50 -07:00
memory
misc
net Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2017-02-24 12:03:21 +08:00
pcmcia
ras
rdma RDMA/core: Fix incorrect structure packing for booleans 2017-03-12 06:37:29 +01:00
rxrpc
scsi scsi: libiscsi: add lock around task lists to fix list corruption regression 2017-03-26 12:13:19 +02:00
soc ARM: at91: define LPDDR types 2017-03-12 06:37:24 +01:00
sound ALSA: rawmidi: Make snd_rawmidi_transmit() race-free 2016-02-17 12:30:58 -08:00
target target: Fix NULL dereference during LUN lookup + active I/O shutdown 2017-03-15 09:57:14 +08:00
trace ANDROID: Replace spaces by '_' for some android filesystem tracepoints. 2017-04-10 13:12:16 +05:30
uapi net: ipv6: Add sysctl for minimum prefix len acceptable in RIOs. 2017-04-10 13:12:16 +05:30
video Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android 2016-06-14 17:08:03 +08:00
xen xen: Fix page <-> pfn conversion on 32 bit systems 2016-05-11 11:21:14 +02:00
Kbuild