diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-25 18:18:34 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 13:12:05 +0400 |
| commit | 2d21a29fb62f142b8a62496700d8d82a6a8fd783 (patch) | |
| tree | 78d83ed47a72b1e31ecadb3f77e91f865b407b48 /drivers/oprofile/oprofile_perf.c | |
| parent | 6b2c1800f1d3a608af952cfbd57f8f1a71c5d9b4 (diff) | |
| download | linux-2d21a29fb62f142b8a62496700d8d82a6a8fd783.tar.xz | |
locking, oprofile: Annotate oprofilefs lock as raw
The oprofilefs_lock can be taken in atomic context (in profiling
interrupts) and therefore cannot cannot be preempted on -rt -
annotate it.
In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/oprofile/oprofile_perf.c')
| -rw-r--r-- | drivers/oprofile/oprofile_perf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c index 94796f39bc47..da14432806c6 100644 --- a/drivers/oprofile/oprofile_perf.c +++ b/drivers/oprofile/oprofile_perf.c @@ -160,9 +160,9 @@ static int oprofile_perf_create_files(struct super_block *sb, struct dentry *roo static int oprofile_perf_setup(void) { - spin_lock(&oprofilefs_lock); + raw_spin_lock(&oprofilefs_lock); op_perf_setup(); - spin_unlock(&oprofilefs_lock); + raw_spin_unlock(&oprofilefs_lock); return 0; } |