diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-25 10:18:34 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2011-09-13 05:12:05 -0400 |
commit | 2d21a29fb62f142b8a62496700d8d82a6a8fd783 (patch) | |
tree | 78d83ed47a72b1e31ecadb3f77e91f865b407b48 /drivers/oprofile/oprofile_perf.c | |
parent | 6b2c1800f1d3a608af952cfbd57f8f1a71c5d9b4 (diff) |
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 | |||
160 | 160 | ||
161 | static int oprofile_perf_setup(void) | 161 | static int oprofile_perf_setup(void) |
162 | { | 162 | { |
163 | spin_lock(&oprofilefs_lock); | 163 | raw_spin_lock(&oprofilefs_lock); |
164 | op_perf_setup(); | 164 | op_perf_setup(); |
165 | spin_unlock(&oprofilefs_lock); | 165 | raw_spin_unlock(&oprofilefs_lock); |
166 | return 0; | 166 | return 0; |
167 | } | 167 | } |
168 | 168 | ||