@@ -62,7 +62,6 @@ extern int filename_lookup(int dfd, struct filename *name, unsigned flags,
struct path *path, struct path *root);
extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
const char *, unsigned int, struct path *);
-long do_rmdir(int dfd, const char __user *pathname);
/*
* namespace.c
@@ -3754,18 +3754,16 @@ int vfs_rmdir(struct inode *dir, struct dentry *dentry)
}
EXPORT_SYMBOL(vfs_rmdir);
-long do_rmdir(int dfd, const char __user *pathname)
+static int do_rmdir(int dfd, struct filename *name)
{
int error = 0;
- struct filename *name;
struct dentry *dentry;
struct path path;
struct qstr last;
int type;
unsigned int lookup_flags = 0;
retry:
- name = filename_parentat(dfd, getname(pathname), lookup_flags,
- &path, &last, &type);
+ name = filename_parentat(dfd, name, lookup_flags, &path, &last, &type);
if (IS_ERR(name))
return PTR_ERR(name);
@@ -3805,17 +3803,22 @@ long do_rmdir(int dfd, const char __user *pathname)
mnt_drop_write(path.mnt);
exit1:
path_put(&path);
- putname(name);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
goto retry;
}
+ putname(name);
return error;
}
+int __init kern_rmdir(const char *pathname)
+{
+ return do_rmdir(AT_FDCWD, getname_kernel(pathname));
+}
+
SYSCALL_DEFINE1(rmdir, const char __user *, pathname)
{
- return do_rmdir(AT_FDCWD, pathname);
+ return do_rmdir(AT_FDCWD, getname(pathname));
}
/**
@@ -3965,7 +3968,7 @@ SYSCALL_DEFINE3(unlinkat, int, dfd, const char __user *, pathname, int, flag)
return -EINVAL;
if (flag & AT_REMOVEDIR)
- return do_rmdir(dfd, pathname);
+ return do_rmdir(dfd, getname(pathname));
return do_unlinkat(dfd, getname(pathname));
}
@@ -3682,5 +3682,6 @@ int kern_mknod(const char *filename, umode_t mode, unsigned int dev);
int __init kern_link(const char *oldname, const char *newname);
int __init kern_symlink(const char *oldname, const char *newname);
int kern_unlink(const char *pathname);
+int __init kern_rmdir(const char *pathname);
#endif /* _LINUX_FS_H */
@@ -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_rmdir(int dfd, const char __user *pathname);
-
-static inline long ksys_rmdir(const char __user *pathname)
-{
- return do_rmdir(AT_FDCWD, pathname);
-}
-
extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
static inline long ksys_ftruncate(unsigned int fd, loff_t length)
@@ -298,7 +298,7 @@ static void __init clean_path(char *path, umode_t fmode)
if (!vfs_lstat(path, &st) && (st.mode ^ fmode) & S_IFMT) {
if (S_ISDIR(st.mode))
- ksys_rmdir(path);
+ kern_rmdir(path);
else
kern_unlink(path);
}
Add a simple helper to rmdir with a kernel space file name and switch the early init code over to it. Remove the now unused ksys_rmdir. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/internal.h | 1 - fs/namei.c | 17 ++++++++++------- include/linux/fs.h | 1 + include/linux/syscalls.h | 7 ------- init/initramfs.c | 2 +- 5 files changed, 12 insertions(+), 16 deletions(-)