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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
include/linux/pagemap.h
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@ -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 */