From: Eric Biggers
The 'f' ioctls with numbers 19-26 decimal are currently used for fscrypt
(a.k.a. ext4/f2fs/ubifs encryption), and up to 39 decimal is reserved
for future fscrypt use, as per the comment in fs/ext4/ext4.h. So the
reserved range is 13-27 hex.
Document this in ioctl-number.rst.
From: Eric Biggers
Now that ext4 and f2fs implement their own post-read workflow that
supports both fscrypt and fsverity, the fscrypt-only workflow based
around struct fscrypt_ctx is no longer used. So remove the unused code.
This is based on a patch from Chandan Rajendra's "Consolidate FS read
Remove the special case for FITRIM, and make file systems
handle that like all other ioctl commands with their own
handlers.
Cc: linux-e...@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: Mikulas Patocka
Cc: linux-ni...@vger.kernel.org
Cc: ocfs2-de...@oss.oracle.com
Signed-off-by:
