x86_64: Quicklist support for x86_64
authorChristoph Lameter <clameter@sgi.com>
Sat, 21 Jul 2007 15:10:30 +0000 (17:10 +0200)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Sun, 22 Jul 2007 01:37:09 +0000 (18:37 -0700)
commit34feb2c83beb3bdf13535a36770f7e50b47ef299
tree4abc3b0fe31495315f414677dcb5198967caa333
parentf0a7a5c93dfd1c0348dbbdb6f22cb82d99079c93
x86_64: Quicklist support for x86_64

This adds caching of pgds and puds, pmds, pte.  That way we can avoid costly
zeroing and initialization of special mappings in the pgd.

A second quicklist is useful to separate out PGD handling.  We can carry the
initialized pgds over to the next process needing them.

Also clean up the pgd_list handling to use regular list macros.  There is no
need anymore to avoid the lru field.

Move the add/removal of the pgds to the pgdlist into the constructor /
destructor.  That way the implementation is congruent with i386.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Luck, Tony" <tony.luck@intel.com>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86_64/Kconfig
arch/x86_64/kernel/process.c
arch/x86_64/kernel/smp.c
include/asm-x86_64/pgalloc.h
include/asm-x86_64/pgtable.h