diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-12-02 23:38:13 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-12-02 23:38:13 -0800 |
| commit | 467832032cc07626880363efa8625719c16c04eb (patch) | |
| tree | ee9a62c04f0b3106e412bc1b2dd1cea5566d5ca7 /kernel/trace/ring_buffer.c | |
| parent | 66d2a5952eab875f1286e04f738ef029afdaf013 (diff) | |
| parent | 22763c5cf3690a681551162c15d34d935308c8d7 (diff) | |
Merge commit 'v2.6.32' into next
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 3ffa502fb243..5dd017fea6f5 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1193,6 +1193,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned nr_pages) atomic_inc(&cpu_buffer->record_disabled); synchronize_sched(); + spin_lock_irq(&cpu_buffer->reader_lock); rb_head_page_deactivate(cpu_buffer); for (i = 0; i < nr_pages; i++) { @@ -1207,6 +1208,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned nr_pages) return; rb_reset_cpu(cpu_buffer); + spin_unlock_irq(&cpu_buffer->reader_lock); rb_check_pages(cpu_buffer); |