[PATCH] Notify page fault call chain for sparc64
commitd98f8f05188b45168db43df8ddc9feeb0b1cd512
authorAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Mon, 26 Jun 2006 07:25:27 +0000 (26 00:25 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 26 Jun 2006 16:58:22 +0000 (26 09:58 -0700)
tree505edc88aa4e8ec3593d7a218c470e7cb9640fb7
parent4f9e87c0454059e80f3811f95ad9f40ed28c69a2
[PATCH] Notify page fault call chain for sparc64

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/sparc64/mm/fault.c
include/asm-sparc64/kdebug.h