init: add an init_chmod helper (1097742e) · Commits · 戴 / test

fs/init.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -96,6 +96,19 @@ int __init init_chown(const char *filename, uid_t user, gid_t group, int flags)
		return error;
		}

		int __init init_chmod(const char *filename, umode_t mode)
		{
		struct path path;
		int error;

		error = kern_path(filename, LOOKUP_FOLLOW, &path);
		if (error)
		return error;
		error = chmod_common(&path, mode);
		path_put(&path);
		return error;
		}

		int __init init_unlink(const char *pathname)
		{
		return do_unlinkat(AT_FDCWD, getname_kernel(pathname));

+1 −1

Original line number	Diff line number	Diff line
		@@ -131,7 +131,7 @@ extern struct open_how build_open_how(int flags, umode_t mode);
		extern int build_open_flags(const struct open_how how, struct open_flags op);

		long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
		int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
		int chmod_common(const struct path *path, umode_t mode);
		int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group,
		int flag);
		int chown_common(const struct path *path, uid_t user, gid_t group);

+2 −2

Original line number	Diff line number	Diff line
		@@ -563,7 +563,7 @@ out:
		return error;
		}

		static int chmod_common(const struct path *path, umode_t mode)
		int chmod_common(const struct path *path, umode_t mode)
		{
		struct inode *inode = path->dentry->d_inode;
		struct inode *delegated_inode = NULL;
		@@ -610,7 +610,7 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
		return err;
		}

		int do_fchmodat(int dfd, const char __user *filename, umode_t mode)
		static int do_fchmodat(int dfd, const char __user *filename, umode_t mode)
		{
		struct path path;
		int error;

+1 −0

Original line number	Diff line number	Diff line
		@@ -6,5 +6,6 @@ int __init init_umount(const char *name, int flags);
		int __init init_chdir(const char *filename);
		int __init init_chroot(const char *filename);
		int __init init_chown(const char *filename, uid_t user, gid_t group, int flags);
		int __init init_chmod(const char *filename, umode_t mode);
		int __init init_unlink(const char *pathname);
		int __init init_rmdir(const char *pathname);

+0 −7

Original line number	Diff line number	Diff line
		@@ -1304,13 +1304,6 @@ static inline long ksys_link(const char __user *oldname,
		return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
		}

		extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);

		static inline int ksys_chmod(const char __user *filename, umode_t mode)
		{
		return do_fchmodat(AT_FDCWD, filename, mode);
		}

		long do_faccessat(int dfd, const char __user *filename, int mode, int flags);

		static inline long ksys_access(const char __user *filename, int mode)