__page_cache_alloc

Name:__page_cache_alloc

Proto:struct page *__page_cache_alloc(gfp_t gfp)

Type:struct page

Parameter:

Type	Parameter	Name
gfp_t	gfp

971

If cpuset_do_page_mem_spread() Then

973

Do

974

cpuset_mems_cookie = read_mems_allowed_begin()

975

n = cpuset_mem_spread_node()

976

page = Allocate pages, preferring the node given as nid. The node must be valid and* online. For more general interface, see alloc_pages_node().

977

When Not page && read_mems_allowed_retry(cpuset_mems_cookie) cycle

979

Return page

981

Return alloc_pages(gfp, 0)

**Caller**
Name	Describe
pagecache_get_page	pagecache_get_page - find and get a page reference@mapping: the address_space to search@offset: the page index@fgp_flags: PCG flags@gfp_mask: gfp mask to use for the page cache data page allocation* Looks up the page cache slot at @mapping & @offset.
do_read_cache_page
__do_page_cache_readahead	__do_page_cache_readahead() actually reads a chunk of disk. It allocates* the pages first, then submits them for I/O. This avoids the very bad* behaviour which would occur if page allocations are causing VM writeback.
page_cache_alloc

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