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authorAl Viro <viro@zeniv.linux.org.uk>2012-06-09 20:33:28 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-07-14 08:35:25 -0400
commitcfa57c11b0d5a80f7bffa1ab35bc46892127817f (patch)
tree7b86c2c918e0790fa8623c49874f7b3c11477c25 /fs/debugfs
parentc3b1a350846a11dd1054cb7832e098aa37025deb (diff)
debugfs: fold debugfs_create_by_name() into the only caller
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/debugfs')
-rw-r--r--fs/debugfs/inode.c53
1 files changed, 20 insertions, 33 deletions
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index d423b966bc79..79f53f3ce7c6 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -293,13 +293,19 @@ static struct file_system_type debug_fs_type = {
293 .kill_sb = kill_litter_super, 293 .kill_sb = kill_litter_super,
294}; 294};
295 295
296static int debugfs_create_by_name(const char *name, umode_t mode, 296struct dentry *__create_file(const char *name, umode_t mode,
297 struct dentry *parent, 297 struct dentry *parent, void *data,
298 struct dentry **dentry, 298 const struct file_operations *fops)
299 void *data,
300 const struct file_operations *fops)
301{ 299{
302 int error = 0; 300 struct dentry *dentry = NULL;
301 int error;
302
303 pr_debug("debugfs: creating file '%s'\n",name);
304
305 error = simple_pin_fs(&debug_fs_type, &debugfs_mount,
306 &debugfs_mount_count);
307 if (error)
308 goto exit;
303 309
304 /* If the parent is not specified, we create it in the root. 310 /* If the parent is not specified, we create it in the root.
305 * We need the root dentry to do this, which is in the super 311 * We need the root dentry to do this, which is in the super
@@ -309,48 +315,29 @@ static int debugfs_create_by_name(const char *name, umode_t mode,
309 if (!parent) 315 if (!parent)
310 parent = debugfs_mount->mnt_root; 316 parent = debugfs_mount->mnt_root;
311 317
312 *dentry = NULL; 318 dentry = NULL;
313 mutex_lock(&parent->d_inode->i_mutex); 319 mutex_lock(&parent->d_inode->i_mutex);
314 *dentry = lookup_one_len(name, parent, strlen(name)); 320 dentry = lookup_one_len(name, parent, strlen(name));
315 if (!IS_ERR(*dentry)) { 321 if (!IS_ERR(dentry)) {
316 switch (mode & S_IFMT) { 322 switch (mode & S_IFMT) {
317 case S_IFDIR: 323 case S_IFDIR:
318 error = debugfs_mkdir(parent->d_inode, *dentry, mode, 324 error = debugfs_mkdir(parent->d_inode, dentry, mode,
319 data, fops); 325 data, fops);
320 break; 326 break;
321 case S_IFLNK: 327 case S_IFLNK:
322 error = debugfs_link(parent->d_inode, *dentry, mode, 328 error = debugfs_link(parent->d_inode, dentry, mode,
323 data, fops); 329 data, fops);
324 break; 330 break;
325 default: 331 default:
326 error = debugfs_create(parent->d_inode, *dentry, mode, 332 error = debugfs_create(parent->d_inode, dentry, mode,
327 data, fops); 333 data, fops);
328 break; 334 break;
329 } 335 }
330 dput(*dentry); 336 dput(dentry);
331 } else 337 } else
332 error = PTR_ERR(*dentry); 338 error = PTR_ERR(dentry);
333 mutex_unlock(&parent->d_inode->i_mutex); 339 mutex_unlock(&parent->d_inode->i_mutex);
334 340
335 return error;
336}
337
338struct dentry *__create_file(const char *name, umode_t mode,
339 struct dentry *parent, void *data,
340 const struct file_operations *fops)
341{
342 struct dentry *dentry = NULL;
343 int error;
344
345 pr_debug("debugfs: creating file '%s'\n",name);
346
347 error = simple_pin_fs(&debug_fs_type, &debugfs_mount,
348 &debugfs_mount_count);
349 if (error)
350 goto exit;
351
352 error = debugfs_create_by_name(name, mode, parent, &dentry,
353 data, fops);
354 if (error) { 341 if (error) {
355 dentry = NULL; 342 dentry = NULL;
356 simple_release_fs(&debugfs_mount, &debugfs_mount_count); 343 simple_release_fs(&debugfs_mount, &debugfs_mount_count);