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debugfs: Fix terminology inconsistency of dir name to mount debugfs filesystem.

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Many developers use "/debug/" or "/debugfs/" or "/sys/kernel/debug/"
directory name to mount debugfs filesystem for ftrace according to
./Documentation/tracers/ftrace.txt file.

And, three directory names(ex:/debug/, /debugfs/, /sys/kernel/debug/) is
existed in kernel source like ftrace, DRM, Wireless, Documentation,
Network[sky2]files to mount debugfs filesystem.

debugfs means debug filesystem for debugging easy to use by greg kroah
hartman. "/sys/kernel/debug/" name is suitable as directory name
of debugfs filesystem.
- debugfs related reference: http://lwn.net/Articles/334546/

Fix inconsistency of directory name to mount debugfs filesystem.

* From Steven Rostedt
  - find_debugfs() and tracing_files() in this patch.

Signed-off-by: GeunSik Lim <[email protected]>
Acked-by     : Inaky Perez-Gonzalez <[email protected]>
Reviewed-by  : Steven Rostedt <[email protected]>
Reviewed-by  : James Smart <[email protected]>
CC: Jiri Kosina <[email protected]>
CC: David Airlie <[email protected]>
CC: Peter Osterlund <[email protected]>
CC: Ananth N Mavinakayanahalli <[email protected]>
CC: Anil S Keshavamurthy <[email protected]>
CC: Masami Hiramatsu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
GeunSik Lim 2009-06-02 15:01:37 +09:00 • committed by Greg Kroah-Hartman
commit 156f5a7801
20 changed files with 238 additions and 191 deletions
Download patch file Download diff file Expand all files Collapse all files

12
drivers/gpu/drm/drm_debugfs.c
View file

@ -105,7 +105,7 @@ int drm_debugfs_create_files(struct drm_info_list *files, int count,
ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
root, tmp, &drm_debugfs_fops);
if (!ent) {
DRM_ERROR("Cannot create /debugfs/dri/%s/%s\n",
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s/%s\n",
name, files[i].name);
drm_free(tmp, sizeof(struct drm_info_node),
_DRM_DRIVER);
@ -133,9 +133,9 @@ EXPORT_SYMBOL(drm_debugfs_create_files);
* \param minor device minor number
* \param root DRI debugfs dir entry.
*
* Create the DRI debugfs root entry "/debugfs/dri", the device debugfs root entry
* "/debugfs/dri/%minor%/", and each entry in debugfs_list as
* "/debugfs/dri/%minor%/%name%".
* Create the DRI debugfs root entry "/sys/kernel/debug/dri", the device debugfs root entry
* "/sys/kernel/debug/dri/%minor%/", and each entry in debugfs_list as
* "/sys/kernel/debug/dri/%minor%/%name%".
*/
int drm_debugfs_init(struct drm_minor *minor, int minor_id,
struct dentry *root)
@ -148,7 +148,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
sprintf(name, "%d", minor_id);
minor->debugfs_root = debugfs_create_dir(name, root);
if (!minor->debugfs_root) {
DRM_ERROR("Cannot create /debugfs/dri/%s\n", name);
DRM_ERROR("Cannot create /sys/kernel/debug/dri/%s\n", name);
return -1;
}
@ -165,7 +165,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
ret = dev->driver->debugfs_init(minor);
if (ret) {
DRM_ERROR("DRM: Driver failed to initialize "
"/debugfs/dri.\n");
"/sys/kernel/debug/dri.\n");
return ret;
}
}

2
drivers/gpu/drm/drm_drv.c
View file

@ -339,7 +339,7 @@ static int __init drm_core_init(void)
drm_debugfs_root = debugfs_create_dir("dri", NULL);
if (!drm_debugfs_root) {
DRM_ERROR("Cannot create /debugfs/dri\n");
DRM_ERROR("Cannot create /sys/kernel/debug/dri\n");
ret = -1;
goto err_p3;
}

2
drivers/gpu/drm/drm_stub.c
View file

@ -343,7 +343,7 @@ static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int t
#if defined(CONFIG_DEBUG_FS)
ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root);
if (ret) {
DRM_ERROR("DRM: Failed to initialize /debugfs/dri.\n");
DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
goto err_g2;
}
#endif