linux-kernel - [RFC PATCH 0/6] Convert mount_single-using filesystems to fs

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Message-ID: <155316902426.29884.2476392753144421312.stgit@warthog.procyon.org.uk>
Date:   Thu, 21 Mar 2019 11:50:24 +0000
From:   David Howells <dhowells@...hat.com>
To:     viro@...iv.linux.org.uk
Cc:     linux-block@...r.kernel.org, squashfs-devel@...ts.sourceforge.net,
        Richard Weinberger <richard@....at>,
        Marek Vasut <marek.vasut@...il.com>,
        Brian Norris <computersforpeace@...il.com>,
        Nicolas Pitre <nico@...aro.org>,
        Boris Brezillon <bbrezillon@...nel.org>,
        linux-mtd@...ts.infradead.org,
        David Woodhouse <dwmw2@...radead.org>,
        Phillip Lougher <phillip@...ashfs.org.uk>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        dhowells@...hat.com
Subject: [RFC PATCH 0/6] Convert mount_single-using filesystems to fs_context


Hi Al,

Here's a set of patches that convert romfs, cramfs, jffs2 and squashfs to
use the new fs_context struct and replace mount_mtd().  They have
prerequisite commits (such as replacing mount_bdev()) that can be found in
the branch detailed below.

 (1) Provide a replacement for mount_mtd() that takes an fs_context to
     specify the parameters.

     I also put an mtd device pointer into the fs_context struct for use in
     the sget_fc() test and set functions plus a destructor because
     put_fs_context() can't reach into the mtd module.

 (2) Convert romfs.

 (3) Convert cramfs.

 (4) Convert jffs2.

 (5) Get rid of the now-obsolete mount_mtd() function.

 (6) Convert squashfs.

These can be found in the following branch:

	http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=mount-api-viro

Thanks,
David
---
David Howells (6):
      mtd: Provide fs_context-aware mount_mtd() replacement
      romfs: Convert to fs_context
      cramfs: Convert to fs_context
      jffs2: Convert to fs_context
      mtd: Kill off mount_mtd()
      squashfs: Convert to fs_context


 drivers/mtd/mtdcore.h      |    1 
 drivers/mtd/mtdsuper.c     |  181 ++++++++++++++++++++++----------------------
 fs/cramfs/inode.c          |   69 +++++++++--------
 fs/fs_context.c            |    2 
 fs/jffs2/fs.c              |   21 +++--
 fs/jffs2/os-linux.h        |    4 -
 fs/jffs2/super.c           |  172 ++++++++++++++++++++----------------------
 fs/romfs/super.c           |   46 +++++++----
 fs/squashfs/super.c        |  100 +++++++++++++-----------
 include/linux/fs_context.h |    2 
 include/linux/mtd/super.h  |    6 +
 11 files changed, 316 insertions(+), 288 deletions(-)