From a41cd6e4274462df70a72f57c5a6cb85db924a08 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@athlon.transmeta.com>
Date: Mon, 4 Feb 2002 20:19:52 -0800
Subject: v2.4.10 -> v2.4.10.0.1

  - me/al/andrea: buffers-in-pagecache coherency, buffer.c cleanups
---
 include/linux/blkdev.h  | 11 -----------
 include/linux/fs.h      | 16 +++-------------
 include/linux/pagemap.h |  3 +++
 include/linux/swap.h    |  1 +
 4 files changed, 7 insertions(+), 24 deletions(-)

(limited to 'include/linux')

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f266229c340c..86ea92ae5a94 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -203,15 +203,4 @@ static inline int get_hardsect_size(kdev_t dev)
 #define blk_finished_io(nsects)	do { } while (0)
 #define blk_started_io(nsects)	do { } while (0)
 
-static inline int buffered_blk_size(kdev_t dev)
-{
-	int ret = INT_MAX;
-	int major = MAJOR(dev);
-
-	if (blk_size[major])
-		ret = blk_size[major][MINOR(dev)] + ((BUFFERED_BLOCKSIZE-1) >> BLOCK_SIZE_BITS);
-
-	return ret;
-}
-
 #endif
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 1600704891a6..686fb7160c25 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -46,10 +46,6 @@ struct poll_table_struct;
 #define BLOCK_SIZE_BITS 10
 #define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
 
-/* buffer header fixed size for the blkdev I/O through pagecache */
-#define BUFFERED_BLOCKSIZE_BITS 10
-#define BUFFERED_BLOCKSIZE (1 << BUFFERED_BLOCKSIZE_BITS)
-
 /* And dynamically-tunable limits and defaults: */
 struct files_stat_struct {
 	int nr_files;		/* read only */
@@ -1174,14 +1170,9 @@ extern int invalidate_device(kdev_t, int);
 extern void invalidate_inode_pages(struct inode *);
 extern void invalidate_inode_pages2(struct address_space *);
 extern void invalidate_inode_buffers(struct inode *);
-#define invalidate_buffers(dev)	__invalidate_buffers((dev), 0, 0)
-#define destroy_buffers(dev)	__invalidate_buffers((dev), 1, 0)
-#define update_buffers(dev)			\
-do {						\
-	__invalidate_buffers((dev), 0, 1);	\
-	__invalidate_buffers((dev), 0, 2);	\
-} while (0)
-extern void __invalidate_buffers(kdev_t dev, int, int);
+#define invalidate_buffers(dev)	__invalidate_buffers((dev), 0)
+#define destroy_buffers(dev)	__invalidate_buffers((dev), 1)
+extern void __invalidate_buffers(kdev_t dev, int);
 extern void sync_inodes(kdev_t);
 extern void sync_unlocked_inodes(void);
 extern void write_inode_now(struct inode *, int);
@@ -1367,7 +1358,6 @@ extern int block_sync_page(struct page *);
 int generic_block_bmap(struct address_space *, long, get_block_t *);
 int generic_commit_write(struct file *, struct page *, unsigned, unsigned);
 int block_truncate_page(struct address_space *, loff_t, get_block_t *);
-extern int generic_direct_IO(int, struct inode *, struct kiobuf *, unsigned long, int, get_block_t *);
 extern void create_empty_buffers(struct page *, kdev_t, unsigned long);
 
 extern int waitfor_one_page(struct page*);
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 88366342a2c9..05e2f7c1a055 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -76,6 +76,9 @@ extern struct page * __find_get_page(struct address_space *mapping,
 	__find_get_page(mapping, index, page_hash(mapping, index))
 extern struct page * __find_lock_page (struct address_space * mapping,
 				unsigned long index, struct page **hash);
+extern struct page * find_or_create_page(struct address_space *mapping,
+				unsigned long index, unsigned int gfp_mask);
+
 extern void lock_page(struct page *page);
 #define find_lock_page(mapping, index) \
 	__find_lock_page(mapping, index, page_hash(mapping, index))
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 0282b6bac60c..22f533a99564 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -131,6 +131,7 @@ extern struct page * read_swap_cache_async(swp_entry_t);
 extern void oom_kill(void);
 
 /* linux/mm/swapfile.c */
+extern int total_swap_pages;
 extern unsigned int nr_swapfiles;
 extern struct swap_info_struct swap_info[];
 extern int is_swap_partition(kdev_t);
-- 
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