From: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Date: Mon, 26 Jun 2006 07:25:27 +0000 (-0700)
Subject: [PATCH] Notify page fault call chain for powerpc
X-Git-Tag: v2.6.18-rc1~777
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f9e87c0454059e80f3811f95ad9f40ed28c69a2;p=pandora-kernel.git

[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>
---

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