[PATCH] Notify page fault call chain for powerpc
authorAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Mon, 26 Jun 2006 07:25:27 +0000 (00:25 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 26 Jun 2006 16:58:22 +0000 (09:58 -0700)
commit4f9e87c0454059e80f3811f95ad9f40ed28c69a2
treecc8290b8fc757b34e01a4e9c25bbe00496400084
parentae9a5b85655d7133ab8e7c99b742ef20c8dbb7d2
[PATCH] Notify page fault call chain for powerpc

Overloading of page fault notification with the notify_die() has performance
issues(since the only interested components for page fault is kprobes and/or
kdb) and hence this patch introduces the new notifier call chain exclusively
for page fault notifications their by avoiding notifying unnecessary
components in the do_page_fault() code path.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/powerpc/mm/fault.c
include/asm-powerpc/kdebug.h