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
..
array.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
base.c	proc/base: make prompt shell start from new line after executing "cat /proc/$pid/wchan"	2016-03-17 15:09:34 -07:00
cmdline.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
consoles.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
cpuinfo.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
devices.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
fd.c	proc: add a reschedule point in proc_readfd_common()	2016-01-09 02:56:10 -05:00
fd.h	proc: Move proc_fd() to fs/proc/fd.h	2013-05-01 17:29:39 -04:00
generic.c	proc: change proc_subdir_lock to a rwlock	2015-09-10 13:29:01 -07:00
inode.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
internal.h	proc: Allow creating permanently empty directories that serve as mount points	2015-07-01 10:36:41 -05:00
interrupts.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
Kconfig	fs, proc: add help for CONFIG_PROC_CHILDREN	2015-07-17 16:39:52 -07:00
kcore.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
kmsg.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
loadavg.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
Makefile	proc: Implement /proc/thread-self to point at the directory of the current thread	2014-08-04 10:07:11 -07:00
meminfo.c	mm/page_alloc.c: calculate 'available' memory in a separate function	2016-03-17 15:09:34 -07:00
namespaces.c	cgroup: introduce cgroup namespaces	2016-02-16 13:04:58 -05:00
nommu.c	vfs: add seq_file_path() helper	2015-06-23 18:01:07 -04:00
page.c	/proc/kpageflags: return KPF_SLAB for slab tail pages	2016-03-17 15:09:34 -07:00
proc_net.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
proc_sysctl.c	fs: Drop unlikely before IS_ERR(_OR_NULL)	2015-09-29 15:13:58 +02:00
proc_tty.c	proc: remove proc_tty_ldisc variable	2014-08-08 15:57:22 -07:00
root.c	vfs: Commit to never having exectuables on proc and sysfs.	2015-07-10 10:39:25 -05:00
self.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
softirqs.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
stat.c	genirq: Prevent proc race against freeing of irq descriptors	2014-12-13 13:33:07 +01:00
task_mmu.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
task_nommu.c	proc: revert /proc/<pid>/maps [stack:TID] annotation	2016-02-03 08:28:43 -08:00
thread_self.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
uptime.c	cputime: Default implementation of nsecs -> cputime conversion	2014-03-13 15:56:43 +01:00
version.c	fs/proc: don't use module_init for non-modular core code	2014-01-23 16:37:02 -08:00
vmcore.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00