]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
mm: rework do_pages_move() to work on page_sized chunks
authorBrice Goglin <Brice.Goglin@inria.fr>
Tue, 6 Jan 2009 22:38:57 +0000 (14:38 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 6 Jan 2009 23:58:58 +0000 (15:58 -0800)
commit3140a2273009c01c27d316f35ab76a37e105fdd8
tree25d4f805dbf72a9491bc146bb77418ef507d21bf
parent390722baa7fc447b0a4f0c3c3f537ed056dbc944
mm: rework do_pages_move() to work on page_sized chunks

Rework do_pages_move() to work by page-sized chunks of struct page_to_node
that are passed to do_move_page_to_node_array().  We now only have to
allocate a single page instead a possibly very large vmalloc area to store
all page_to_node entries.

As a result, new_page_node() will now have a very small lookup, hidding
much of the overall sys_move_pages() overhead.

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Nathalie Furmento <Nathalie.Furmento@labri.fr>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/migrate.c