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authorOleg Nesterov <oleg@redhat.com>2010-06-03 23:32:39 +0400
committerFrederic Weisbecker <fweisbec@gmail.com>2010-06-09 19:32:15 +0400
commit147ec4d2361e355ab32499f739cc24845ceb89da (patch)
treef4e686eb7aea74903ca06b93aa305ba54ad8c17e /fs/ocfs2
parent039ca4e74a1cf60bd7487324a564ecf5c981f254 (diff)
downloadlinux-147ec4d2361e355ab32499f739cc24845ceb89da.tar.xz
x86: Make save_stack_address() !CONFIG_FRAME_POINTER friendly
If CONFIG_FRAME_POINTER=n, print_context_stack() shouldn't neglect the non-reliable addresses on stack, this is all we have if dump_trace(bp) is called with the wrong or zero bp. For example, /proc/pid/stack doesn't work if CONFIG_FRAME_POINTER=n. This patch obviously has no effect if CONFIG_FRAME_POINTER=y, otherwise it reverts 1650743c "x86: don't save unreliable stack trace entries". Also, remove the unnecessary type-cast. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <20100603193239.GA31530@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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