Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-block.git] / kernel / trace / trace.c

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a95c5cd28135d436ed5d44d4a584c1a493714a51..c90c687cf950a4f53baa1aea1dc37f58a4645244 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6719,11 +6719,13 @@ tracing_snapshot_write(struct file *filp, const char __user *ubuf, size_t cnt,
                        break;
                }
 #endif
-               if (!tr->allocated_snapshot) {
+               if (tr->allocated_snapshot)
+                       ret = resize_buffer_duplicate_size(&tr->max_buffer,
+                                       &tr->trace_buffer, iter->cpu_file);
+               else
                        ret = tracing_alloc_snapshot_instance(tr);
-                       if (ret < 0)
-                               break;
-               }
+               if (ret < 0)
+                       break;
                local_irq_disable();
                /* Now, we're going to swap */
                if (iter->cpu_file == RING_BUFFER_ALL_CPUS)
@@ -6923,7 +6925,7 @@ struct tracing_log_err {
 
 static DEFINE_MUTEX(tracing_err_log_lock);
 
-struct tracing_log_err *get_tracing_log_err(struct trace_array *tr)
+static struct tracing_log_err *get_tracing_log_err(struct trace_array *tr)
 {
        struct tracing_log_err *err;
 
@@ -7126,12 +7128,24 @@ static ssize_t tracing_err_log_write(struct file *file,
        return count;
 }
 
+static int tracing_err_log_release(struct inode *inode, struct file *file)
+{
+       struct trace_array *tr = inode->i_private;
+
+       trace_array_put(tr);
+
+       if (file->f_mode & FMODE_READ)
+               seq_release(inode, file);
+
+       return 0;
+}
+
 static const struct file_operations tracing_err_log_fops = {
        .open           = tracing_err_log_open,
        .write          = tracing_err_log_write,
        .read           = seq_read,
        .llseek         = seq_lseek,
-       .release        = tracing_release_generic_tr,
+       .release        = tracing_err_log_release,
 };
 
 static int tracing_buffers_open(struct inode *inode, struct file *filp)
@@ -8192,7 +8206,7 @@ static const struct file_operations buffer_percent_fops = {
        .llseek         = default_llseek,
 };
 
-struct dentry *trace_instance_dir;
+static struct dentry *trace_instance_dir;
 
 static void
 init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer);