On 22/05/16 14:02, Chris Wilson wrote:
Print the context's owner (via the pid under file_priv) under debugfs.
Note that since this was originally introducing
dev_priv->kernel_context, there are a couple of leftover minor chunks.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index ae28e6e9d603..945fe4710b37 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2014,9 +2014,22 @@ static int i915_context_status(struct seq_file *m, void
*unused)
continue;
seq_printf(m, "HW context %u ", ctx->hw_id);
+ if (IS_ERR(ctx->file_priv)) {
+ seq_puts(m, "(deleted) ");
+ } else if (ctx->file_priv) {
+ struct pid *pid = ctx->file_priv->file->pid;
Hm, can you deref file_priv after the file has been closed / client
exited? We could still have the context on the list after that point..
+ struct task_struct *task;
+
+ task = get_pid_task(pid, PIDTYPE_PID);
+ if (task) {
+ seq_printf(m, "(%s [%d]) ",
+ task->comm, task->pid);
+ put_task_struct(task);
+ }
+ } else
+ seq_puts(m, "(kernel) ");
+
describe_ctx(m, ctx);
- if (ctx == dev_priv->kernel_context)
- seq_printf(m, "(kernel context) ");
if (i915.enable_execlists) {
seq_putc(m, '\n');
Regards,
Tvrtko
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