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pagemap.h: move dir_pages() over there

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That function was declared in a lot of filesystems to calculate
directory pages.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Fabian Frederick 2015-05-24 17:19:41 +02:00 committed by Al Viro
parent e5e6e97fe0
commit b57c2cb9ea
8 changed files with 6 additions and 38 deletions
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6
fs/exofs/dir.c
View File

@ -44,12 +44,6 @@ static inline void exofs_put_page(struct page *page)
page_cache_release(page);
}
/* Accesses dir's inode->i_size must be called under inode lock */
static inline unsigned long dir_pages(struct inode *inode)
{
return (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
}
static unsigned exofs_last_byte(struct inode *inode, unsigned long page_nr)
{
loff_t last_byte = inode->i_size;

5
fs/ext2/dir.c
View File

@ -70,11 +70,6 @@ static inline void ext2_put_page(struct page *page)
page_cache_release(page);
}
static inline unsigned long dir_pages(struct inode *inode)
{
return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
}
/*
* Return the offset into page `page_nr' of the last valid
* byte in that page, plus one.

7
fs/freevxfs/vxfs_lookup.c
View File

@ -61,13 +61,6 @@ const struct file_operations vxfs_dir_operations = {
.iterate = vxfs_readdir,
};
static inline u_long
dir_pages(struct inode *inode)
{
return (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
}
static inline u_long
dir_blocks(struct inode *ip)
{

5
fs/minix/dir.c
View File

@ -45,11 +45,6 @@ minix_last_byte(struct inode *inode, unsigned long page_nr)
return last_byte;
}
static inline unsigned long dir_pages(struct inode *inode)
{
return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
}
static int dir_commit_chunk(struct page *page, loff_t pos, unsigned len)
{
struct address_space *mapping = page->mapping;

5
fs/nilfs2/dir.c
View File

@ -61,11 +61,6 @@ static inline void nilfs_put_page(struct page *page)
page_cache_release(page);
}
static inline unsigned long dir_pages(struct inode *inode)
{
return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
}
/*
* Return the offset into page `page_nr' of the last valid
* byte in that page, plus one.

5
fs/qnx6/dir.c
View File

@ -32,11 +32,6 @@ static struct page *qnx6_get_page(struct inode *dir, unsigned long n)
return page;
}
static inline unsigned long dir_pages(struct inode *inode)
{
return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
}
static unsigned last_entry(struct inode *inode, unsigned long page_nr)
{
unsigned long last_byte = inode->i_size;

5
fs/sysv/dir.c
View File

@ -33,11 +33,6 @@ static inline void dir_put_page(struct page *page)
page_cache_release(page);
}
static inline unsigned long dir_pages(struct inode *inode)
{
return (inode->i_size+PAGE_CACHE_SIZE-1)>>PAGE_CACHE_SHIFT;
}
static int dir_commit_chunk(struct page *page, loff_t pos, unsigned len)
{
struct address_space *mapping = page->mapping;

6
include/linux/pagemap.h
View File

@ -670,4 +670,10 @@ static inline int add_to_page_cache(struct page *page,
return error;
}
static inline unsigned long dir_pages(struct inode *inode)
{
return (unsigned long)(inode->i_size + PAGE_CACHE_SIZE - 1) >>
PAGE_CACHE_SHIFT;
}
#endif /* _LINUX_PAGEMAP_H */