read_cache_page man page on Scientific

read_cache_page man page on Scientific

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READ_CACHE_PAGE(9)	  Memory Management in Linux	    READ_CACHE_PAGE(9)

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

SYNOPSIS
       struct page * read_cache_page(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
       Read into the page cache. If a page already exists, and PageUptodate is
       not set, try to fill the page then 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(9)

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