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authorAndi Kleen <ak@suse.de>2005-11-05 11:25:53 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-14 22:55:14 -0500
commit07808b74e7dab1aa385e698795875337d72daf7d (patch)
tree3b593c31e6e58364f4001105bfeebefa94708209 /include/linux/mm.h
parent1dff7f3db5f045ccbfeca5bb00b0958a78501557 (diff)
[PATCH] x86_64: Remove obsolete ARCH_HAS_ATOMIC_UNSIGNED and page_flags_t
Has been introduced for x86-64 at some point to save memory in struct page, but has been obsolete for some time. Just remove it. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h10
1 files changed, 2 insertions, 8 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5c1fb0a2e806..23fad4dae23c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -206,12 +206,6 @@ struct vm_operations_struct {
206struct mmu_gather; 206struct mmu_gather;
207struct inode; 207struct inode;
208 208
209#ifdef ARCH_HAS_ATOMIC_UNSIGNED
210typedef unsigned page_flags_t;
211#else
212typedef unsigned long page_flags_t;
213#endif
214
215/* 209/*
216 * Each physical page in the system has a struct page associated with 210 * Each physical page in the system has a struct page associated with
217 * it to keep track of whatever it is we are using the page for at the 211 * it to keep track of whatever it is we are using the page for at the
@@ -219,7 +213,7 @@ typedef unsigned long page_flags_t;
219 * a page. 213 * a page.
220 */ 214 */
221struct page { 215struct page {
222 page_flags_t flags; /* Atomic flags, some possibly 216 unsigned long flags; /* Atomic flags, some possibly
223 * updated asynchronously */ 217 * updated asynchronously */
224 atomic_t _count; /* Usage count, see below. */ 218 atomic_t _count; /* Usage count, see below. */
225 atomic_t _mapcount; /* Count of ptes mapped in mms, 219 atomic_t _mapcount; /* Count of ptes mapped in mms,
@@ -435,7 +429,7 @@ static inline void put_page(struct page *page)
435#endif 429#endif
436 430
437/* Page flags: | [SECTION] | [NODE] | ZONE | ... | FLAGS | */ 431/* Page flags: | [SECTION] | [NODE] | ZONE | ... | FLAGS | */
438#define SECTIONS_PGOFF ((sizeof(page_flags_t)*8) - SECTIONS_WIDTH) 432#define SECTIONS_PGOFF ((sizeof(unsigned long)*8) - SECTIONS_WIDTH)
439#define NODES_PGOFF (SECTIONS_PGOFF - NODES_WIDTH) 433#define NODES_PGOFF (SECTIONS_PGOFF - NODES_WIDTH)
440#define ZONES_PGOFF (NODES_PGOFF - ZONES_WIDTH) 434#define ZONES_PGOFF (NODES_PGOFF - ZONES_WIDTH)
441 435