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gpu: ion: Fix debugfs handling of multiple kernel clients

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Currently, Ion registers all debugfs entries for clients
via pid. If there are multiple kernel clients, this means
the debugfs entry only gets created for the first one. Fix
this by creating debugfs entries by name always. When
creating user clients, specify the name via the pid.

Change-Id: I00cbb284d1c53b3362bb7be9c0275620a9fac167
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
This commit is contained in:
Laura Abbott
2011-12-05 15:32:36 -08:00
committed by Colin Cross
parent 5ec06794e1
commit c95cd575f4
1 changed files with 5 additions and 5 deletions
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10
drivers/staging/android/ion/ion.c
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@@ -718,7 +718,6 @@ struct ion_client *ion_client_create(struct ion_device *dev,
struct rb_node **p;
struct rb_node *parent = NULL;
struct ion_client *entry;
char debug_name[64];
pid_t pid;
get_task_struct(current->group_leader);
@@ -763,15 +762,14 @@ struct ion_client *ion_client_create(struct ion_device *dev,
rb_link_node(&client->node, parent, p);
rb_insert_color(&client->node, &dev->clients);
snprintf(debug_name, 64, "%u", client->pid);
client->debug_root = debugfs_create_file(debug_name, 0664,
client->debug_root = debugfs_create_file(name, 0664,
dev->clients_debug_root,
client, &debug_client_fops);
if (!client->debug_root) {
char buf[256], *path;
path = dentry_path(dev->clients_debug_root, buf, 256);
pr_err("Failed to create client debugfs at %s/%s\n",
path, debug_name);
path, name);
}
up_write(&dev->lock);
@@ -1302,9 +1300,11 @@ static int ion_open(struct inode *inode, struct file *file)
struct miscdevice *miscdev = file->private_data;
struct ion_device *dev = container_of(miscdev, struct ion_device, dev);
struct ion_client *client;
char debug_name[64];
pr_debug("%s: %d\n", __func__, __LINE__);
client = ion_client_create(dev, "user");
snprintf(debug_name, 64, "%u", task_pid_nr(current->group_leader));
client = ion_client_create(dev, debug_name);
if (IS_ERR(client))
return PTR_ERR(client);
file->private_data = client;