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authorArnd Bergmann <arnd@relay.de.ibm.com>2010-03-23 19:09:33 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2010-04-04 15:27:58 +0200
commit3326c1ceee234e63160852720d48be8a8f7a6d08 (patch)
tree18aa2c9ebe2985c558e61c778f7a1e6cd8ab6393 /kernel
parent6cc8a7c1d8560c042f486b23318a6291569ab96b (diff)
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/perf_event.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 63fbce1c80b..4aa50ff4efc 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -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,