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
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Makefile	drm/ttm: Enable the dma page pool also for intel IOMMUs	2013-11-06 03:55:52 -08:00
ttm_agp_backend.c	drm/ttm: Fix memory leak in ttm_agp_backend.c	2014-02-18 14:03:32 +01:00
ttm_bo_manager.c	drm/ttm: Use only DRM_MM_SEARCH_BELOW for TTM_PL_FLAG_TOPDOWN	2014-11-12 11:56:33 -05:00
ttm_bo_util.c	drm/ttm: recognize ARM64 arch in ioprot handler	2015-07-24 11:51:14 +10:00
ttm_bo_vm.c	mm, dax, gpu: convert vm_insert_mixed to pfn_t	2016-01-15 17:56:32 -08:00
ttm_bo.c	drm/ttm: add ttm_bo_move_to_lru_tail function v2	2016-01-13 12:21:21 -05:00
ttm_execbuf_util.c	drm/ttm: optionally move duplicates to a separate list	2014-12-03 18:26:52 -05:00
ttm_lock.c	drm/ttm: Fixed a read/write lock imbalance	2015-11-26 15:47:38 +01:00
ttm_memory.c	drm/ttm: make sure format string cannot leak in	2014-09-17 11:15:01 +10:00
ttm_module.c	drm/ttm: make device_released static	2014-07-22 12:59:32 +10:00
ttm_object.c	dma-buf: cleanup dma_buf_export() to make it easily extensible	2015-04-21 14:47:16 +05:30
ttm_page_alloc_dma.c	drm/ttm: improve uncached page deallocation.	2015-07-17 18:18:04 +10:00
ttm_page_alloc.c	drm/ttm: Avoid memory allocation from shrinker functions.	2014-11-20 11:31:56 +10:00
ttm_tt.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00