Commit 3326c1ce authored Mar 23, 2010 by Arnd Bergmann Committed by Frederic Weisbecker Apr 04, 2010

perf_event: Make perf fd non seekable



Perf_event does not need seeking, so prevent it in order to
get rid of default_llseek, which uses the BKL.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
[drop the nonseekable_open, not needed for anon inodes]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

parent 6cc8a7c1

kernel/perf_event.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2645,6 +2645,7 @@ static int perf_fasync(int fd, struct file *filp, int on)
		}

		static const struct file_operations perf_fops = {
		.llseek = no_llseek,
		.release = perf_release,
		.read = perf_read,
		.poll = perf_poll,