From: Steven Rostedt Date: Thu, 10 Sep 2009 21:22:44 +0000 (-0400) Subject: x86/tracing: comment need for atomic nop X-Git-Tag: v2.6.32-rc1~654^2~29 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc06b8520b3bf9aaeb2e27debe6719c215bd4916;p=pandora-kernel.git x86/tracing: comment need for atomic nop The dynamic function tracer relys on the macro P6_NOP5 always being an atomic NOP. If for some reason it is changed to be two operations (like a nop2 nop3) it can faults within the kernel when the function tracer modifies the code. This patch adds a comment to note that the P6_NOPs are expected to be atomic. This will hopefully prevent anyone from changing that. Reported-by: Mathieu Desnoyer Signed-off-by: Steven Rostedt --- Reading git-diff-tree failed