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| author | Arnd Bergmann | 2010-03-23 19:09:33 +0100 |
|---|---|---|
| committer | Frederic Weisbecker | 2010-04-04 15:27:58 +0200 |
| commit | 3326c1ceee234e63160852720d48be8a8f7a6d08 (patch) | |
| tree | 18aa2c9ebe2985c558e61c778f7a1e6cd8ab6393 /kernel/perf_event.c | |
| parent | perf: Fetch hot regs from the template caller (diff) | |
| download | kernel-qcow2-linux-3326c1ceee234e63160852720d48be8a8f7a6d08.tar.gz kernel-qcow2-linux-3326c1ceee234e63160852720d48be8a8f7a6d08.tar.xz kernel-qcow2-linux-3326c1ceee234e63160852720d48be8a8f7a6d08.zip | |
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/perf_event.c')
| -rw-r--r-- | kernel/perf_event.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 63fbce1c80b5..4aa50ff4efc0 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, |