aboutsummaryrefslogtreecommitdiff
path: root/i386/i386at/gpl/linux/include/linux/pagemap.h
diff options
context:
space:
mode:
Diffstat (limited to 'i386/i386at/gpl/linux/include/linux/pagemap.h')
-rw-r--r--i386/i386at/gpl/linux/include/linux/pagemap.h131
1 files changed, 0 insertions, 131 deletions
diff --git a/i386/i386at/gpl/linux/include/linux/pagemap.h b/i386/i386at/gpl/linux/include/linux/pagemap.h
deleted file mode 100644
index 6de993b3..00000000
--- a/i386/i386at/gpl/linux/include/linux/pagemap.h
+++ /dev/null
@@ -1,131 +0,0 @@
-#ifndef _LINUX_PAGEMAP_H
-#define _LINUX_PAGEMAP_H
-
-#include <asm/system.h>
-
-/*
- * Page-mapping primitive inline functions
- *
- * Copyright 1995 Linus Torvalds
- */
-
-#ifndef MACH
-static inline unsigned long page_address(struct page * page)
-{
- return PAGE_OFFSET + PAGE_SIZE*(page - mem_map);
-}
-
-#define PAGE_HASH_BITS 10
-#define PAGE_HASH_SIZE (1 << PAGE_HASH_BITS)
-
-#define PAGE_AGE_VALUE 16
-
-extern unsigned long page_cache_size;
-extern struct page * page_hash_table[PAGE_HASH_SIZE];
-
-/*
- * We use a power-of-two hash table to avoid a modulus,
- * and get a reasonable hash by knowing roughly how the
- * inode pointer and offsets are distributed (ie, we
- * roughly know which bits are "significant")
- */
-static inline unsigned long _page_hashfn(struct inode * inode, unsigned long offset)
-{
-#define i (((unsigned long) inode)/sizeof(unsigned long))
-#define o (offset >> PAGE_SHIFT)
-#define s(x) ((x)+((x)>>PAGE_HASH_BITS))
- return s(i+o) & (PAGE_HASH_SIZE-1);
-#undef i
-#undef o
-#undef s
-}
-
-#define page_hash(inode,offset) page_hash_table[_page_hashfn(inode,offset)]
-
-static inline struct page * find_page(struct inode * inode, unsigned long offset)
-{
- struct page *page;
- unsigned long flags;
-
- for (page = page_hash(inode, offset); page ; page = page->next_hash) {
- if (page->inode != inode)
- continue;
- if (page->offset != offset)
- continue;
- save_flags(flags);
- cli();
- page->referenced = 1;
- page->count++;
- restore_flags(flags);
- break;
- }
- return page;
-}
-
-static inline void remove_page_from_hash_queue(struct page * page)
-{
- struct page **p = &page_hash(page->inode,page->offset);
-
- page_cache_size--;
- if (page->next_hash)
- page->next_hash->prev_hash = page->prev_hash;
- if (page->prev_hash)
- page->prev_hash->next_hash = page->next_hash;
- if (*p == page)
- *p = page->next_hash;
- page->next_hash = page->prev_hash = NULL;
-}
-
-static inline void add_page_to_hash_queue(struct inode * inode, struct page * page)
-{
- struct page **p = &page_hash(inode,page->offset);
-
- page_cache_size++;
- page->referenced = 1;
- page->age = PAGE_AGE_VALUE;
- page->prev_hash = NULL;
- if ((page->next_hash = *p) != NULL)
- page->next_hash->prev_hash = page;
- *p = page;
-}
-
-static inline void remove_page_from_inode_queue(struct page * page)
-{
- struct inode * inode = page->inode;
-
- page->inode = NULL;
- inode->i_nrpages--;
- if (inode->i_pages == page)
- inode->i_pages = page->next;
- if (page->next)
- page->next->prev = page->prev;
- if (page->prev)
- page->prev->next = page->next;
- page->next = NULL;
- page->prev = NULL;
-}
-
-static inline void add_page_to_inode_queue(struct inode * inode, struct page * page)
-{
- struct page **p = &inode->i_pages;
-
- inode->i_nrpages++;
- page->inode = inode;
- page->prev = NULL;
- if ((page->next = *p) != NULL)
- page->next->prev = page;
- *p = page;
-}
-
-extern void __wait_on_page(struct page *);
-static inline void wait_on_page(struct page * page)
-{
- if (page->locked)
- __wait_on_page(page);
-}
-
-extern void update_vm_cache(struct inode *, unsigned long, const char *, int);
-
-#endif /* ! MACH */
-
-#endif