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(parent: f30c2c9) | patch
uml: speed up page table walking
authorJeff Dike <jdike@addtoit.com>
Sun, 6 May 2007 21:51:30 +0000 (14:51 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Mon, 7 May 2007 19:13:03 +0000 (12:13 -0700)
commit7f0536f80cfbefd753eb123ed20940978f223900
tree98d38ab533082d8145b932bb0e6c4ab86191186atree | snapshot (tar.gz zip)
parentf30c2c983e09470446ee00472f9d4a927fe2e9cbcommit | diff
uml: speed up page table walking

The previous page table walking code was horribly inefficient.  This patch
replaces it with code taken from elsewhere in the kernel.

Forking from bash is now ~5% faster and page faults are handled ~10% faster.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/um/kernel/tlb.c diff | blob | blame | history