From 5a2ba99222fc2897311ed48745562952b8f030ad Mon Sep 17 00:00:00 2001 From: Emil Velikov Date: Mon, 18 May 2020 09:33:15 +0100 Subject: [PATCH] drm: print the current->comm alongside the pid The question of "what process is this pid" keeps on popping up, so lets print the process name alongside the pid. Cc: Mauro Rossi Cc: Bob Beckett Cc: Pekka Paalanen Signed-off-by: Emil Velikov Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200518083315.129948-1-emil.l.velikov@gmail.com --- drivers/gpu/drm/drm_file.c | 7 ++++--- drivers/gpu/drm/drm_ioc32.c | 4 ++-- drivers/gpu/drm/drm_ioctl.c | 11 ++++++----- 3 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index 7194e67e78bd..9b79bfc60ad7 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -253,8 +253,8 @@ void drm_file_free(struct drm_file *file) dev = file->minor->dev; - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - task_pid_nr(current), + DRM_DEBUG("comm=\"%s\", pid=%d, dev=0x%lx, open_count=%d\n", + current->comm, task_pid_nr(current), (long)old_encode_dev(file->minor->kdev->devt), atomic_read(&dev->open_count)); @@ -345,7 +345,8 @@ static int drm_open_helper(struct file *filp, struct drm_minor *minor) if (dev->switch_power_state != DRM_SWITCH_POWER_ON && dev->switch_power_state != DRM_SWITCH_POWER_DYNAMIC_OFF) return -EINVAL; - DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor->index); + DRM_DEBUG("comm=\"%s\", pid=%d, minor=%d\n", current->comm, + task_pid_nr(current), minor->index); priv = drm_file_alloc(minor); if (IS_ERR(priv)) diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c index 22c7fd7196c8..ff5d40036e21 100644 --- a/drivers/gpu/drm/drm_ioc32.c +++ b/drivers/gpu/drm/drm_ioc32.c @@ -985,8 +985,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (!fn) return drm_ioctl(filp, cmd, arg); - DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", - task_pid_nr(current), + DRM_DEBUG("comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, %s\n", + current->comm, task_pid_nr(current), (long)old_encode_dev(file_priv->minor->kdev->devt), file_priv->authenticated, drm_compat_ioctls[nr].name); diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index 73e31dd4e442..0fb9da24eaa4 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -852,8 +852,8 @@ long drm_ioctl(struct file *filp, out_size = 0; ksize = max(max(in_size, out_size), drv_size); - DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", - task_pid_nr(current), + DRM_DEBUG("comm=\"%s\" pid=%d, dev=0x%lx, auth=%d, %s\n", + current->comm, task_pid_nr(current), (long)old_encode_dev(file_priv->minor->kdev->devt), file_priv->authenticated, ioctl->name); @@ -890,15 +890,16 @@ long drm_ioctl(struct file *filp, err_i1: if (!ioctl) - DRM_DEBUG("invalid ioctl: pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n", - task_pid_nr(current), + DRM_DEBUG("invalid ioctl: comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n", + current->comm, task_pid_nr(current), (long)old_encode_dev(file_priv->minor->kdev->devt), file_priv->authenticated, cmd, nr); if (kdata != stack_kdata) kfree(kdata); if (retcode) - DRM_DEBUG("pid=%d, ret = %d\n", task_pid_nr(current), retcode); + DRM_DEBUG("comm=\"%s\", pid=%d, ret=%d\n", current->comm, + task_pid_nr(current), retcode); return retcode; } EXPORT_SYMBOL(drm_ioctl);