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Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull vfs namei updates from Al Viro:
 "Pathwalk-related stuff"

[ Audit-related cleanups, misc simplifications, and easier to follow
  nd->root refcounts     - Linus ]

* 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  devpts_pty_kill(): don't bother with d_delete()
  infiniband: don't bother with d_delete()
  hypfs: don't bother with d_delete()
  fs/namei.c: keep track of nd->root refcount status
  fs/namei.c: new helper - legitimize_root()
  kill the last users of user_{path,lpath,path_dir}()
  namei.h: get the comments on LOOKUP_... in sync with reality
  kill LOOKUP_NO_EVAL, don't bother including namei.h from audit.h
  audit_inode(): switch to passing AUDIT_INODE_...
  filename_mountpoint(): make LOOKUP_NO_EVAL unconditional there
  filename_lookup(): audit_inode() argument is always 0
This commit is contained in:
Linus Torvalds 2019-09-18 13:03:01 -07:00
commit 53e5e7a7a7
10 changed files with 64 additions and 111 deletions
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10
fs/namespace.c
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@ -1675,8 +1675,6 @@ int ksys_umount(char __user *name, int flags)
if (!(flags & UMOUNT_NOFOLLOW))
lookup_flags |= LOOKUP_FOLLOW;
lookup_flags |= LOOKUP_NO_EVAL;
retval = user_path_mountpoint_at(AT_FDCWD, name, lookup_flags, &path);
if (retval)
goto out;
@ -3046,7 +3044,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
return -EINVAL;
/* ... and get the mountpoint */
retval = user_path(dir_name, &path);
retval = user_path_at(AT_FDCWD, dir_name, LOOKUP_FOLLOW, &path);
if (retval)
return retval;
@ -3593,11 +3591,13 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
if (!may_mount())
return -EPERM;
error = user_path_dir(new_root, &new);
error = user_path_at(AT_FDCWD, new_root,
LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &new);
if (error)
goto out0;
error = user_path_dir(put_old, &old);
error = user_path_at(AT_FDCWD, put_old,
LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &old);
if (error)
goto out1;