[GIT PULL] fscrypt updates for 5.15

[Eric Biggers]

The following changes since commit ff1176468d368232b684f75e82563369208bc371:

  Linux 5.14-rc3 (2021-07-25 15:35:14 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git tags/fscrypt-for-linus

for you to fetch changes up to 38ef66b05cfa3560323344a0b3e09e583f1eb974:

  fscrypt: document struct fscrypt_operations (2021-07-28 21:40:36 -0700)

----------------------------------------------------------------

Some small fixes and cleanups for fs/crypto/:

- Fix ->getattr() for ext4, f2fs, and ubifs to report the correct
  st_size for encrypted symlinks.

- Use base64url instead of a custom Base64 variant.

- Document struct fscrypt_operations.

----------------------------------------------------------------
Eric Biggers (7):
      fscrypt: add fscrypt_symlink_getattr() for computing st_size
      ext4: report correct st_size for encrypted symlinks
      f2fs: report correct st_size for encrypted symlinks
      ubifs: report correct st_size for encrypted symlinks
      fscrypt: remove mention of symlink st_size quirk from documentation
      fscrypt: align Base64 encoding with RFC 4648 base64url
      fscrypt: document struct fscrypt_operations

 Documentation/filesystems/fscrypt.rst |  15 ++---
 fs/crypto/fname.c                     | 106 +++++++++++++++++++------------
 fs/crypto/hooks.c                     |  44 +++++++++++++
 fs/ext4/symlink.c                     |  12 +++-
 fs/f2fs/namei.c                       |  12 +++-
 fs/ubifs/file.c                       |  13 +++-
 include/linux/fscrypt.h               | 116 ++++++++++++++++++++++++++++++++--
 7 files changed, 260 insertions(+), 58 deletions(-)