From: Steven Rostedt (Red Hat) Date: Tue, 2 Dec 2014 16:55:36 +0000 (-0500) Subject: tracing: Add NOT to filtering logic X-Git-Tag: omap-for-v3.20/drop-legacy-3517~138^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e12c09cf3087b5a184ffeb55ca368e8aa436a3a2;p=pandora-kernel.git tracing: Add NOT to filtering logic Ted noticed that he could not filter on an event for a bit being cleared. That's because the filtering logic only tests event fields with a limited number of comparisons which, for bit logic, only include "&", which can test if a bit is set, but there's no good way to see if a bit is clear. This adds a way to do: !(field & 2048) Which returns true if the bit is not set, and false otherwise. Note, currently !(field1 == 10 && field2 == 15) is not supported. That is, the 'not' only works for direct comparisons, not for the AND and OR logic. Link: http://lkml.kernel.org/r/20141202021912.GA29096@thunk.org Link: http://lkml.kernel.org/r/20141202120430.71979060@gandalf.local.home Acked-by: Alexei Starovoitov Suggested-by: "Theodore Ts'o" Signed-off-by: Steven Rostedt --- Reading git-diff-tree failed