Lines Matching refs:dentry
55 static char *get_dname(struct dentry *dentry) in get_dname() argument
59 int len = dentry->d_name.len; in get_dname()
61 dname = dentry->d_name.name; in get_dname()
71 struct inode *inode, struct dentry *dentry, in tracefs_syscall_mkdir() argument
77 name = get_dname(dentry); in tracefs_syscall_mkdir()
95 static int tracefs_syscall_rmdir(struct inode *inode, struct dentry *dentry) in tracefs_syscall_rmdir() argument
100 name = get_dname(dentry); in tracefs_syscall_rmdir()
112 inode_unlock(dentry->d_inode); in tracefs_syscall_rmdir()
117 inode_lock(dentry->d_inode); in tracefs_syscall_rmdir()
164 static void change_gid(struct dentry *dentry, kgid_t gid) in change_gid() argument
166 if (!dentry->d_inode) in change_gid()
168 dentry->d_inode->i_gid = gid; in change_gid()
178 static void set_gid(struct dentry *parent, kgid_t gid) in set_gid()
180 struct dentry *this_parent; in set_gid()
192 struct dentry *dentry = list_entry(tmp, struct dentry, d_child); in set_gid() local
195 spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED); in set_gid()
197 change_gid(dentry, gid); in set_gid()
199 if (!list_empty(&dentry->d_subdirs)) { in set_gid()
201 spin_release(&dentry->d_lock.dep_map, _RET_IP_); in set_gid()
202 this_parent = dentry; in set_gid()
206 spin_unlock(&dentry->d_lock); in set_gid()
214 struct dentry *child = this_parent; in set_gid()
225 child = list_entry(next, struct dentry, d_child); in set_gid()
315 static int tracefs_show_options(struct seq_file *m, struct dentry *root) in tracefs_show_options()
371 static struct dentry *trace_mount(struct file_system_type *fs_type, in trace_mount()
386 static struct dentry *start_creating(const char *name, struct dentry *parent) in start_creating()
388 struct dentry *dentry; in start_creating() local
408 dentry = ERR_PTR(-ENOENT); in start_creating()
410 dentry = lookup_one_len(name, parent, strlen(name)); in start_creating()
411 if (!IS_ERR(dentry) && dentry->d_inode) { in start_creating()
412 dput(dentry); in start_creating()
413 dentry = ERR_PTR(-EEXIST); in start_creating()
416 if (IS_ERR(dentry)) { in start_creating()
421 return dentry; in start_creating()
424 static struct dentry *failed_creating(struct dentry *dentry) in failed_creating() argument
426 inode_unlock(dentry->d_parent->d_inode); in failed_creating()
427 dput(dentry); in failed_creating()
432 static struct dentry *end_creating(struct dentry *dentry) in end_creating() argument
434 inode_unlock(dentry->d_parent->d_inode); in end_creating()
435 return dentry; in end_creating()
464 struct dentry *tracefs_create_file(const char *name, umode_t mode, in tracefs_create_file()
465 struct dentry *parent, void *data, in tracefs_create_file()
468 struct dentry *dentry; in tracefs_create_file() local
477 dentry = start_creating(name, parent); in tracefs_create_file()
479 if (IS_ERR(dentry)) in tracefs_create_file()
482 inode = tracefs_get_inode(dentry->d_sb); in tracefs_create_file()
484 return failed_creating(dentry); in tracefs_create_file()
489 inode->i_uid = d_inode(dentry->d_parent)->i_uid; in tracefs_create_file()
490 inode->i_gid = d_inode(dentry->d_parent)->i_gid; in tracefs_create_file()
491 d_instantiate(dentry, inode); in tracefs_create_file()
492 fsnotify_create(dentry->d_parent->d_inode, dentry); in tracefs_create_file()
493 return end_creating(dentry); in tracefs_create_file()
496 static struct dentry *__create_dir(const char *name, struct dentry *parent, in __create_dir()
499 struct dentry *dentry = start_creating(name, parent); in __create_dir() local
502 if (IS_ERR(dentry)) in __create_dir()
505 inode = tracefs_get_inode(dentry->d_sb); in __create_dir()
507 return failed_creating(dentry); in __create_dir()
513 inode->i_uid = d_inode(dentry->d_parent)->i_uid; in __create_dir()
514 inode->i_gid = d_inode(dentry->d_parent)->i_gid; in __create_dir()
518 d_instantiate(dentry, inode); in __create_dir()
519 inc_nlink(dentry->d_parent->d_inode); in __create_dir()
520 fsnotify_mkdir(dentry->d_parent->d_inode, dentry); in __create_dir()
521 return end_creating(dentry); in __create_dir()
541 struct dentry *tracefs_create_dir(const char *name, struct dentry *parent) in tracefs_create_dir()
563 __init struct dentry *tracefs_create_instance_dir(const char *name, in tracefs_create_instance_dir()
564 struct dentry *parent, in tracefs_create_instance_dir()
568 struct dentry *dentry; in tracefs_create_instance_dir() local
574 dentry = __create_dir(name, parent, &tracefs_dir_inode_operations); in tracefs_create_instance_dir()
575 if (!dentry) in tracefs_create_instance_dir()
581 return dentry; in tracefs_create_instance_dir()
584 static void remove_one(struct dentry *victim) in remove_one()
597 void tracefs_remove(struct dentry *dentry) in tracefs_remove() argument
599 if (IS_ERR_OR_NULL(dentry)) in tracefs_remove()
603 simple_recursive_removal(dentry, remove_one); in tracefs_remove()