Kirill A. Shutemov
09cbfeaf1a
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros ...
PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time
ago with promise that one day it will be possible to implement page
cache with bigger chunks than PAGE_SIZE.
This promise never materialized. And unlikely will.
We have many places where PAGE_CACHE_SIZE assumed to be equal to
PAGE_SIZE. And it's constant source of confusion on whether
PAGE_CACHE_* or PAGE_* constant should be used in a particular case,
especially on the border between fs and mm.
Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
breakage to be doable.
Let's stop pretending that pages in page cache are special. They are
not.
The changes are pretty straight-forward:
- <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;
- <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>;
- PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN};
- page_cache_get() -> get_page();
- page_cache_release() -> put_page();
This patch contains automated changes generated with coccinelle using
script below. For some reason, coccinelle doesn't patch header files.
I've called spatch for them manually.
The only adjustment after coccinelle is revert of changes to
PAGE_CAHCE_ALIGN definition: we are going to drop it later.
There are few places in the code where coccinelle didn't reach. I'll
fix them manually in a separate patch. Comments and documentation also
will be addressed with the separate patch.
virtual patch
@@
expression E;
@@
- E << (PAGE_CACHE_SHIFT - PAGE_SHIFT)
+ E
@@
expression E;
@@
- E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT)
+ E
@@
@@
- PAGE_CACHE_SHIFT
+ PAGE_SHIFT
@@
@@
- PAGE_CACHE_SIZE
+ PAGE_SIZE
@@
@@
- PAGE_CACHE_MASK
+ PAGE_MASK
@@
expression E;
@@
- PAGE_CACHE_ALIGN(E)
+ PAGE_ALIGN(E)
@@
expression E;
@@
- page_cache_get(E)
+ get_page(E)
@@
expression E;
@@
- page_cache_release(E)
+ put_page(E)
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-04-04 10:41:08 -07:00
Power management and ACPI material for v4.6-rc1, part 2
2016-03-24 22:59:58 -07:00
Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2016-03-18 20:06:46 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2016-03-17 21:38:27 -07:00
Power management and ACPI material for v4.6-rc1, part 2
2016-03-24 22:59:58 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
arm[64] perf updates for 4.6:
2016-03-21 13:14:16 -07:00
Revert "ppdev: use new parport device model"
2016-03-25 09:02:13 -07:00
The clk changes for this release cycle are mostly dominated by
2016-03-23 06:06:45 -07:00
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-24 10:32:42 -07:00
Power management and ACPI material for v4.6-rc1, part 2
2016-03-24 22:59:58 -07:00
cpuidle: menu: Fall back to polling if next timer event is near
2016-03-21 15:50:28 +01:00
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2016-03-23 06:12:39 -07:00
PM / devfreq: Spelling s/frequnecy/frequency/
2016-03-17 02:30:16 +01:00
asm-generic changes for 4.6
2016-03-24 23:13:48 -07:00
dma-buf: Update docs for SYNC ioctl
2016-03-21 09:26:45 +01:00
EDAC queue for 4.6
2016-03-16 08:36:55 -07:00
IEEE 1394 subsystem patch:
2016-03-25 08:52:25 -07:00
kernel: add kcov code coverage
2016-03-22 15:36:02 -07:00
gpio: xgene: Prevent NULL pointer dereference
2016-03-30 10:39:39 +02:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
drivers/hid/uhid.c: check write() bitness using in_compat_syscall
2016-03-22 15:36:02 -07:00
Char/Misc patches for 4.6-rc1
2016-03-17 13:47:50 -07:00
hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated
2016-03-27 10:37:48 -07:00
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2016-03-22 12:47:40 -07:00
ide: palm_bk3710: test clock rate to avoid division by 0
2016-03-20 16:59:27 -04:00
intel_idle: Support for Intel Xeon Phi Processor x200 Product Family
2016-03-23 16:19:38 -04:00
- New Drivers
2016-03-18 10:15:11 -07:00
Merge branch 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-03-23 15:57:39 -07:00
Merge branch 'akpm' (patches from Andrew)
2016-03-25 16:59:11 -07:00
IOMMU Updates for Linux v4.6
2016-03-22 11:57:43 -07:00
irqchip/mbigen: Make CONFIG_HISILICON_IRQ_MBIGEN a hidden option
2016-03-23 12:02:29 +01:00
isdn: Use ktime_t instead of 'struct timeval'
2016-03-20 16:47:13 -04:00
platform-drivers-x86 for 4.6-1
2016-03-23 17:20:59 -07:00
lightnvm: do not load L2P table if not supported
2016-03-18 18:10:38 -07:00
Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2016-03-23 06:09:15 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
MTD updates for v4.6
2016-03-24 19:57:15 -07:00
drivers/memstick/host/r592.c: avoid gcc-6 warning
2016-03-25 16:37:42 -07:00
- New Drivers
2016-03-18 10:15:11 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
asm-generic changes for 4.6
2016-03-24 23:13:48 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-03-19 10:05:34 -07:00
NTB: Remove _addr functions from ntb_hw_amd
2016-03-26 11:44:33 -04:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
nvme: avoid cqe corruption when update at the same time as read
2016-03-22 10:27:29 -06:00
DeviceTree updates for 4.6:
2016-03-19 15:15:07 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
PCI changes for the v4.6 merge window:
2016-03-16 14:45:55 -07:00
Revert "PCI: dra7xx: Mark driver as broken"
2016-03-22 07:50:11 -05:00
drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree
2016-03-21 11:36:17 +00:00
Merge branch 'akpm' (patches from Andrew)
2016-03-18 19:26:54 -07:00
platform-drivers-x86 for 4.6-1
2016-03-23 17:20:59 -07:00
Power management and ACPI material for v4.6-rc1, part 2
2016-03-25 16:55:37 -07:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 12:13:56 -07:00
pwm: omap-dmtimer: Add debug message for effective period and duty cycle
2016-03-23 17:11:48 +01:00
rapidio: add mport char device driver
2016-03-22 15:36:02 -07:00
- New Drivers
2016-03-18 10:15:11 -07:00
RTC for 4.6 #2
2016-03-24 22:49:08 -07:00
virtio/vhost: new features, performance improvements, cleanups
2016-03-20 13:28:18 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
ARM: SoC driver updates for v4.6
2016-03-20 15:40:32 -07:00
dmaengine updates for 4.6
2016-03-17 12:34:54 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-03-22 12:41:14 -07:00
Thermal: Ignore invalid trip points
2016-03-18 14:10:57 +08:00
xen: features and fixes for 4.6-rc0
2016-03-22 12:55:17 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
VFIO updates for v4.6-rc1
2016-03-17 13:05:09 -07:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2016-03-22 12:41:14 -07:00
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
virtio/vhost: new features, performance improvements, cleanups
2016-03-20 13:28:18 -07:00
hpwdt: use nmi_panic() when kernel panics in NMI handler
2016-03-22 15:36:02 -07:00
xen: features and fixes for 4.6-rc0
2016-03-22 12:55:17 -07:00
09cbfeaf1a