Merge tag 'pull-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull d_name audit update from Al Viro:
 "Simplifying ->d_name audits, easy part.

  Turn dentry->d_name into an anon union of const struct qsrt (d_name
  itself) and a writable alias (__d_name).

  With constification of some struct qstr * arguments of functions that
  get &dentry->d_name passed to them, that ends up with all
  modifications provably done only in fs/dcache.c (and a fairly small
  part of it).

  Any new places doing modifications will be easy to find - grep for
  __d_name will suffice"

* tag 'pull-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  make it easier to catch those who try to modify ->d_name
  generic_ci_validate_strict_name(): constify name argument
  afs_dir_search: constify qstr argument
  afs_edit_dir_{add,remove}(): constify qstr argument
  exfat_find(): constify qstr argument
  security_dentry_init_security(): constify qstr argument

1 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index d3c023ff1a86..caa8e8879f4b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3716,7 +3716,8 @@ int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
  *   happens when a directory is casefolded and the filesystem is strict
  *   about its encoding.
  */
-static inline bool generic_ci_validate_strict_name(struct inode *dir, struct qstr *name)
+static inline bool generic_ci_validate_strict_name(struct inode *dir,
+						   const struct qstr *name)
 {
 	if (!IS_CASEFOLDED(dir) || !sb_has_strict_encoding(dir->i_sb))
 		return true;
@@ -3731,7 +3732,8 @@ static inline bool generic_ci_validate_strict_name(struct inode *dir, struct qst
 	return !utf8_validate(dir->i_sb->s_encoding, name);
 }
 #else
-static inline bool generic_ci_validate_strict_name(struct inode *dir, struct qstr *name)
+static inline bool generic_ci_validate_strict_name(struct inode *dir,
+						   const struct qstr *name)
 {
 	return true;
 }