linux-kernel - [PATCH 0/2] Create io_uring fd with ephemeral inode

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Message-Id: <20210519113058.1979817-1-memxor@gmail.com>
Date:   Wed, 19 May 2021 17:00:55 +0530
From:   Kumar Kartikeya Dwivedi <memxor@...il.com>
To:     io-uring@...r.kernel.org
Cc:     Pavel Emelyanov <xemul@...nvz.org>,
        Kumar Kartikeya Dwivedi <memxor@...il.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Jens Axboe <axboe@...nel.dk>,
        Pavel Begunkov <asml.silence@...il.com>,
        Daniel Colascione <dancol@...gle.com>,
        Paul Moore <paul@...l-moore.com>,
        Eric Biggers <ebiggers@...gle.com>,
        Lokesh Gidra <lokeshgidra@...gle.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH  0/2] Create io_uring fd with ephemeral inode

This set converts io_uring to use secure anon_inodes (with a newly allocated
non-S_PRIVATE inode) for each individual instance. In addition to allowing LSM
modules to enforce policy using the inode context, it also enables
checkpoint/restore usecases by allowing mapping the VMA to the open fd in a
task. Offset is already available to determine rings mapped per region, so this
was the only missing piece in establishing region <-> io_uring instance mapping.

LSM tie up has been left out of this set for now.

Kumar Kartikeya Dwivedi (2):
  fs: anon_inodes: export anon_inode_getfile_secure helper
  fs: io_uring: convert to use anon_inode_getfile_secure

 fs/anon_inodes.c            | 9 +++++++++
 fs/io_uring.c               | 4 ++--
 include/linux/anon_inodes.h | 4 ++++
 3 files changed, 15 insertions(+), 2 deletions(-)

-- 
2.31.1