init: add an init_mkdir helper (83ff98c3) · Commits · 戴 / test

fs/init.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -176,6 +176,24 @@ int __init init_unlink(const char *pathname)
		return do_unlinkat(AT_FDCWD, getname_kernel(pathname));
		}

		int __init init_mkdir(const char *pathname, umode_t mode)
		{
		struct dentry *dentry;
		struct path path;
		int error;

		dentry = kern_path_create(AT_FDCWD, pathname, &path, LOOKUP_DIRECTORY);
		if (IS_ERR(dentry))
		return PTR_ERR(dentry);
		if (!IS_POSIXACL(path.dentry->d_inode))
		mode &= ~current_umask();
		error = security_path_mkdir(&path, dentry, mode);
		if (!error)
		error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
		done_path_create(&path, dentry);
		return error;
		}

		int __init init_rmdir(const char *pathname)
		{
		return do_rmdir(AT_FDCWD, getname_kernel(pathname));

+0 −1

Original line number	Diff line number	Diff line
		@@ -64,7 +64,6 @@ extern int vfs_path_lookup(struct dentry , struct vfsmount ,
		const char , unsigned int, struct path );
		long do_mknodat(int dfd, const char __user *filename, umode_t mode,
		unsigned int dev);
		long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
		long do_rmdir(int dfd, struct filename *name);
		long do_unlinkat(int dfd, struct filename *name);
		int may_linkat(struct path *link);

+1 −1

Original line number	Diff line number	Diff line
		@@ -3645,7 +3645,7 @@ int vfs_mkdir(struct inode dir, struct dentry dentry, umode_t mode)
		}
		EXPORT_SYMBOL(vfs_mkdir);

		long do_mkdirat(int dfd, const char __user *pathname, umode_t mode)
		static long do_mkdirat(int dfd, const char __user *pathname, umode_t mode)
		{
		struct dentry *dentry;
		struct path path;

+1 −0

Original line number	Diff line number	Diff line
		@@ -11,4 +11,5 @@ int __init init_eaccess(const char *filename);
		int __init init_link(const char oldname, const char newname);
		int __init init_symlink(const char oldname, const char newname);
		int __init init_unlink(const char *pathname);
		int __init init_mkdir(const char *pathname, umode_t mode);
		int __init init_rmdir(const char *pathname);

+0 −7

Original line number	Diff line number	Diff line
		@@ -1270,13 +1270,6 @@ int compat_ksys_ipc(u32 call, int first, int second,
		* The following kernel syscall equivalents are just wrappers to fs-internal
		* functions. Therefore, provide stubs to be inlined at the callsites.
		*/
		extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);

		static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
		{
		return do_mkdirat(AT_FDCWD, pathname, mode);
		}

		extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
		unsigned int dev);