simple_recursive_removal(): kernel-side rm -rf for ramfs-style filesystems

two requirements: no file creations in IS_DEADDIR and no cross-directory renames whatsoever.

Al Viro committed 6 years ago

Commit a3d1e7e1 parent e42617b9 files · +104 −218Browse files

Showing the changes to include/linux (3 of 9 files). Show all

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@@ -83,7 +83,7 @@ struct dentry debugfs_create_automount(const char name, · 82 unmodified lines
83	void *data);	83	void *data);
84		84
85	void debugfs_remove(struct dentry *dentry);	85	void debugfs_remove(struct dentry *dentry);
86	void debugfs_remove_recursive(struct dentry *dentry);	86	#define debugfs_remove_recursive debugfs_remove
87		87
88	const struct file_operations debugfs_real_fops(const struct file filp);	88	const struct file_operations debugfs_real_fops(const struct file filp);
89		89

 extern int simple_rmdir(struct inode *, struct dentry *);
 extern int simple_rename(struct inode *, struct dentry *,
 			 struct inode *, struct dentry *, unsigned int);
+extern void simple_recursive_removal(struct dentry *,
+                              void (*callback)(struct dentry *));
 extern int noop_fsync(struct file *, loff_t, loff_t, int);
 extern int noop_set_page_dirty(struct page *page);
 extern void noop_invalidatepage(struct page *page, unsigned int offset,

@@ -28,7 +28,6 @@ struct dentry tracefs_create_file(const char name, umode_t mode, · 27 unmodified lines
28	struct dentry tracefs_create_dir(const char name, struct dentry *parent);	28	struct dentry tracefs_create_dir(const char name, struct dentry *parent);
29		29
30	void tracefs_remove(struct dentry *dentry);	30	void tracefs_remove(struct dentry *dentry);
31	void tracefs_remove_recursive(struct dentry *dentry);
32		31
33	struct dentry tracefs_create_instance_dir(const char name, struct dentry *parent,	32	struct dentry tracefs_create_instance_dir(const char name, struct dentry *parent,
34	int (mkdir)(const char name),	33	int (mkdir)(const char name),

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