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READ_CACHE_PAGE_ASYN(9)	  Memory Management in Linux   READ_CACHE_PAGE_ASYN(9)

NAME
       read_cache_page_async - read into page cache, fill it if needed

SYNOPSIS
       struct page * read_cache_page_async(struct address_space * mapping,
					   pgoff_t index,
					   int (*filler) (void *, struct page *),
					   void * data);

ARGUMENTS
       mapping
	   the page´s address_space

       index
	   the page index

       filler
	   function to perform the read

       data
	   first arg to filler(data, page) function, often left as NULL

DESCRIPTION
       Same as read_cache_page, but don´t wait for page to become unlocked
       after submitting it to the filler.

       Read into the page cache. If a page already exists, and PageUptodate is
       not set, try to fill the page but don´t wait for it to become unlocked.

       If the page does not get brought uptodate, return -EIO.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       READ_CACHE_PAGE_ASYN(9)

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