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authorAndrew Morton <akpm@linux-foundation.org>2015-05-14 01:01:46 +0000
committerJohannes Weiner <hannes@cmpxchg.org>2015-05-14 01:01:46 +0000
commite61494a8ef7531495fbbe394964d447b2fd06494 (patch)
tree8cec5e0ffb15c093a5f963f5e128f8b4885033cc
parent36a3e403f0a941b37c7292039b73d9bc153efb2d (diff)
downloadmm-next-e61494a8ef7531495fbbe394964d447b2fd06494.tar.gz
include/linux/page-flags.h: rename macros to avoid collisions
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--include/linux/page-flags.h112
1 files changed, 56 insertions, 56 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 514ea2f54282fd..91b7f9b2b77433 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -135,15 +135,15 @@ enum pageflags {
#ifndef __GENERATING_BOUNDS_H
/* Page flags policies wrt compound pages */
-#define ANY(page, enforce) page
-#define HEAD(page, enforce) compound_head(page)
-#define NO_TAIL(page, enforce) ({ \
+#define PF_ANY(page, enforce) page
+#define PF_HEAD(page, enforce) compound_head(page)
+#define PF_NO_TAIL(page, enforce) ({ \
if (enforce) \
VM_BUG_ON_PAGE(PageTail(page), page); \
else \
page = compound_head(page); \
page;})
-#define NO_COMPOUND(page, enforce) ({ \
+#define PF_NO_COMPOUND(page, enforce) ({ \
if (enforce) \
VM_BUG_ON_PAGE(PageCompound(page), page); \
page;})
@@ -269,55 +269,55 @@ static inline struct page *compound_head_fast(struct page *page)
return page;
}
-__PAGEFLAG(Locked, locked, NO_TAIL)
-PAGEFLAG(Error, error, NO_COMPOUND) TESTCLEARFLAG(Error, error, NO_COMPOUND)
-PAGEFLAG(Referenced, referenced, HEAD)
- TESTCLEARFLAG(Referenced, referenced, HEAD)
- __SETPAGEFLAG(Referenced, referenced, HEAD)
-PAGEFLAG(Dirty, dirty, HEAD) TESTSCFLAG(Dirty, dirty, HEAD)
- __CLEARPAGEFLAG(Dirty, dirty, HEAD)
-PAGEFLAG(LRU, lru, HEAD) __CLEARPAGEFLAG(LRU, lru, HEAD)
-PAGEFLAG(Active, active, HEAD) __CLEARPAGEFLAG(Active, active, HEAD)
- TESTCLEARFLAG(Active, active, HEAD)
-__PAGEFLAG(Slab, slab, NO_TAIL)
-__PAGEFLAG(SlobFree, slob_free, NO_TAIL)
-PAGEFLAG(Checked, checked, NO_COMPOUND) /* Used by some filesystems */
+__PAGEFLAG(Locked, locked, PF_NO_TAIL)
+PAGEFLAG(Error, error, PF_NO_COMPOUND) TESTCLEARFLAG(Error, error, PF_NO_COMPOUND)
+PAGEFLAG(Referenced, referenced, PF_HEAD)
+ TESTCLEARFLAG(Referenced, referenced, PF_HEAD)
+ __SETPAGEFLAG(Referenced, referenced, PF_HEAD)
+PAGEFLAG(Dirty, dirty, PF_HEAD) TESTSCFLAG(Dirty, dirty, PF_HEAD)
+ __CLEARPAGEFLAG(Dirty, dirty, PF_HEAD)
+PAGEFLAG(LRU, lru, PF_HEAD) __CLEARPAGEFLAG(LRU, lru, PF_HEAD)
+PAGEFLAG(Active, active, PF_HEAD) __CLEARPAGEFLAG(Active, active, PF_HEAD)
+ TESTCLEARFLAG(Active, active, PF_HEAD)
+__PAGEFLAG(Slab, slab, PF_NO_TAIL)
+__PAGEFLAG(SlobFree, slob_free, PF_NO_TAIL)
+PAGEFLAG(Checked, checked, PF_NO_COMPOUND) /* Used by some filesystems */
/* Xen */
-PAGEFLAG(Pinned, pinned, NO_COMPOUND) TESTSCFLAG(Pinned, pinned, NO_COMPOUND)
-PAGEFLAG(SavePinned, savepinned, NO_COMPOUND)
-PAGEFLAG(Foreign, foreign, NO_COMPOUND)
+PAGEFLAG(Pinned, pinned, PF_NO_COMPOUND) TESTSCFLAG(Pinned, pinned, PF_NO_COMPOUND)
+PAGEFLAG(SavePinned, savepinned, PF_NO_COMPOUND)
+PAGEFLAG(Foreign, foreign, PF_NO_COMPOUND)
-PAGEFLAG(Reserved, reserved, NO_COMPOUND)
- __CLEARPAGEFLAG(Reserved, reserved, NO_COMPOUND)
-PAGEFLAG(SwapBacked, swapbacked, NO_TAIL)
- __CLEARPAGEFLAG(SwapBacked, swapbacked, NO_TAIL)
- __SETPAGEFLAG(SwapBacked, swapbacked, NO_TAIL)
+PAGEFLAG(Reserved, reserved, PF_NO_COMPOUND)
+ __CLEARPAGEFLAG(Reserved, reserved, PF_NO_COMPOUND)
+PAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL)
+ __CLEARPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL)
+ __SETPAGEFLAG(SwapBacked, swapbacked, PF_NO_TAIL)
/*
* Private page markings that may be used by the filesystem that owns the page
* for its own purposes.
* - PG_private and PG_private_2 cause releasepage() and co to be invoked
*/
-PAGEFLAG(Private, private, ANY) __SETPAGEFLAG(Private, private, ANY)
- __CLEARPAGEFLAG(Private, private, ANY)
-PAGEFLAG(Private2, private_2, ANY) TESTSCFLAG(Private2, private_2, ANY)
-PAGEFLAG(OwnerPriv1, owner_priv_1, ANY)
- TESTCLEARFLAG(OwnerPriv1, owner_priv_1, ANY)
+PAGEFLAG(Private, private, PF_ANY) __SETPAGEFLAG(Private, private, PF_ANY)
+ __CLEARPAGEFLAG(Private, private, PF_ANY)
+PAGEFLAG(Private2, private_2, PF_ANY) TESTSCFLAG(Private2, private_2, PF_ANY)
+PAGEFLAG(OwnerPriv1, owner_priv_1, PF_ANY)
+ TESTCLEARFLAG(OwnerPriv1, owner_priv_1, PF_ANY)
/*
* Only test-and-set exist for PG_writeback. The unconditional operators are
* risky: they bypass page accounting.
*/
-TESTPAGEFLAG(Writeback, writeback, NO_COMPOUND)
- TESTSCFLAG(Writeback, writeback, NO_COMPOUND)
-PAGEFLAG(MappedToDisk, mappedtodisk, NO_COMPOUND)
+TESTPAGEFLAG(Writeback, writeback, PF_NO_COMPOUND)
+ TESTSCFLAG(Writeback, writeback, PF_NO_COMPOUND)
+PAGEFLAG(MappedToDisk, mappedtodisk, PF_NO_COMPOUND)
/* PG_readahead is only used for reads; PG_reclaim is only for writes */
-PAGEFLAG(Reclaim, reclaim, NO_COMPOUND)
- TESTCLEARFLAG(Reclaim, reclaim, NO_COMPOUND)
-PAGEFLAG(Readahead, reclaim, NO_COMPOUND)
- TESTCLEARFLAG(Readahead, reclaim, NO_COMPOUND)
+PAGEFLAG(Reclaim, reclaim, PF_NO_COMPOUND)
+ TESTCLEARFLAG(Reclaim, reclaim, PF_NO_COMPOUND)
+PAGEFLAG(Readahead, reclaim, PF_NO_COMPOUND)
+ TESTCLEARFLAG(Readahead, reclaim, PF_NO_COMPOUND)
#ifdef CONFIG_HIGHMEM
/*
@@ -330,33 +330,33 @@ PAGEFLAG_FALSE(HighMem)
#endif
#ifdef CONFIG_SWAP
-PAGEFLAG(SwapCache, swapcache, NO_COMPOUND)
+PAGEFLAG(SwapCache, swapcache, PF_NO_COMPOUND)
#else
PAGEFLAG_FALSE(SwapCache)
#endif
-PAGEFLAG(Unevictable, unevictable, HEAD)
- __CLEARPAGEFLAG(Unevictable, unevictable, HEAD)
- TESTCLEARFLAG(Unevictable, unevictable, HEAD)
+PAGEFLAG(Unevictable, unevictable, PF_HEAD)
+ __CLEARPAGEFLAG(Unevictable, unevictable, PF_HEAD)
+ TESTCLEARFLAG(Unevictable, unevictable, PF_HEAD)
#ifdef CONFIG_MMU
-PAGEFLAG(Mlocked, mlocked, NO_TAIL) __CLEARPAGEFLAG(Mlocked, mlocked, NO_TAIL)
- TESTSCFLAG(Mlocked, mlocked, NO_TAIL)
- __TESTCLEARFLAG(Mlocked, mlocked, NO_TAIL)
+PAGEFLAG(Mlocked, mlocked, PF_NO_TAIL) __CLEARPAGEFLAG(Mlocked, mlocked, PF_NO_TAIL)
+ TESTSCFLAG(Mlocked, mlocked, PF_NO_TAIL)
+ __TESTCLEARFLAG(Mlocked, mlocked, PF_NO_TAIL)
#else
PAGEFLAG_FALSE(Mlocked) __CLEARPAGEFLAG_NOOP(Mlocked)
TESTSCFLAG_FALSE(Mlocked) __TESTCLEARFLAG_FALSE(Mlocked)
#endif
#ifdef CONFIG_ARCH_USES_PG_UNCACHED
-PAGEFLAG(Uncached, uncached, NO_COMPOUND)
+PAGEFLAG(Uncached, uncached, PF_NO_COMPOUND)
#else
PAGEFLAG_FALSE(Uncached)
#endif
#ifdef CONFIG_MEMORY_FAILURE
-PAGEFLAG(HWPoison, hwpoison, ANY)
-TESTSCFLAG(HWPoison, hwpoison, ANY)
+PAGEFLAG(HWPoison, hwpoison, PF_ANY)
+TESTSCFLAG(HWPoison, hwpoison, PF_ANY)
#define __PG_HWPOISON (1UL << PG_hwpoison)
#else
PAGEFLAG_FALSE(HWPoison)
@@ -446,7 +446,7 @@ static inline void SetPageUptodate(struct page *page)
set_bit(PG_uptodate, &page->flags);
}
-CLEARPAGEFLAG(Uptodate, uptodate, NO_TAIL)
+CLEARPAGEFLAG(Uptodate, uptodate, PF_NO_TAIL)
int test_clear_page_writeback(struct page *page);
int __test_set_page_writeback(struct page *page, bool keep_write);
@@ -475,8 +475,8 @@ static inline void set_page_writeback_keepwrite(struct page *page)
* and arch/powerpc/kvm/book3s_64_vio_hv.c which use it to detect huge pages
* and avoid handling those in real mode.
*/
-__PAGEFLAG(Head, head, ANY) CLEARPAGEFLAG(Head, head, ANY)
-__PAGEFLAG(Tail, tail, ANY)
+__PAGEFLAG(Head, head, PF_ANY) CLEARPAGEFLAG(Head, head, PF_ANY)
+__PAGEFLAG(Tail, tail, PF_ANY)
static inline int PageCompound(struct page *page)
{
@@ -500,8 +500,8 @@ static inline void ClearPageCompound(struct page *page)
* because PageCompound is always set for compound pages and not for
* pages on the LRU and/or pagecache.
*/
-TESTPAGEFLAG(Compound, compound, ANY)
-__SETPAGEFLAG(Head, compound, ANY) __CLEARPAGEFLAG(Head, compound, ANY)
+TESTPAGEFLAG(Compound, compound, PF_ANY)
+__SETPAGEFLAG(Head, compound, PF_ANY) __CLEARPAGEFLAG(Head, compound, PF_ANY)
/*
* PG_reclaim is used in combination with PG_compound to mark the
@@ -722,10 +722,10 @@ static inline int page_has_private(struct page *page)
return !!(page->flags & PAGE_FLAGS_PRIVATE);
}
-#undef ANY
-#undef HEAD
-#undef NO_TAIL
-#undef NO_COMPOUND
+#undef PF_ANY
+#undef PF_HEAD
+#undef PF_NO_TAIL
+#undef PF_NO_COMPOUND
#endif /* !__GENERATING_BOUNDS_H */
#endif /* PAGE_FLAGS_H */