[PATCH] x86: fix oprofile kernel callgraph regression
authorGerald Britton <gbritton@alum.mit.edu>
Tue, 14 Feb 2006 15:19:04 +0000 (10:19 -0500)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 14 Feb 2006 16:25:29 +0000 (08:25 -0800)
commit303794400992b907b7cac0d91788603636c7e0fe
tree012781f808f48d80b32e435a4f27b6e8524d0ff0
parentb739db79a434aec89027a109d85de305e6bdeb93
[PATCH] x86: fix oprofile kernel callgraph regression

Fix x86 oprofile regression introduced by:
  commit c34d1b4d165c67b966bca4aba026443d7ff161eb
  [PATCH] mm: kill check_user_page_readable

That commit reorganized tests for the userspace stack walking moving all
those tests into dump_backtrace(), however, dump_backtrace() was used for
both userspace and kernel stalk walking.  The result is typically no
recorded callgraph information for kernel samples.

Revive the original function as dump_kernel_backtrace() and rename the
other to dump_user_backtrace() to avoid future confusion.

Signed-off-by: Gerald Britton <gbritton@alum.mit.edu>
Apology-from: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/oprofile/backtrace.c