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From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>,
	Linus Torvalds <torvalds@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org
Subject: add file system helpers that take kernel pointers for the init code
Date: Mon, 20 Jul 2020 17:58:38 +0200	[thread overview]
Message-ID: <20200720155902.181712-1-hch@lst.de> (raw)

Hi Al,

currently a lot of the file system calls in the early in code (and the
devtmpfs kthread) rely on the implicit set_fs(KERNEL_DS) during boot.
This is one of the few last remaining places we need to deal with to kill
off set_fs entirely, so this series adds new helpers that take kernel
pointers.  That is mostly done by pushing the getname() call further up
the stack so that we can add variants using getname_kernel() without
duplicating code.

The series sits on top of my previous

  "decruft the early init / initrd / initramfs code v2"

series.


Git tree:

    git://git.infradead.org/users/hch/misc.git kern_path

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/kern_path


Diffstat:
 drivers/base/devtmpfs.c    |    8 +-
 drivers/md/md-autodetect.c |    2 
 fs/coredump.c              |    2 
 fs/fs_parser.c             |    1 
 fs/internal.h              |   12 ---
 fs/namei.c                 |  166 +++++++++++++++++++++++++++++++--------------
 fs/namespace.c             |  134 +++++++++++++++++++++---------------
 fs/open.c                  |  149 ++++++++++++++++++++++++++++------------
 fs/stat.c                  |   92 ++++++++++++------------
 fs/utimes.c                |   19 +++--
 include/linux/fs.h         |   39 +++++-----
 include/linux/syscalls.h   |   82 ----------------------
 init/do_mounts.c           |   12 +--
 init/do_mounts.h           |    4 -
 init/do_mounts_initrd.c    |   26 +++----
 init/do_mounts_rd.c        |    2 
 init/initramfs.c           |   27 +++----
 init/main.c                |    9 --
 init/noinitramfs.c         |    9 +-
 kernel/uid16.c             |   15 ----
 20 files changed, 434 insertions(+), 376 deletions(-)

             reply	other threads:[~2020-07-20 16:29 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-20 15:58 Christoph Hellwig [this message]
2020-07-20 15:58 ` [PATCH 01/24] init: initialize ramdisk_execute_command at compile time Christoph Hellwig
2020-07-20 15:58 ` [PATCH 02/24] fs: add a do_kern_mount helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 03/24] fs: add a kern_umount helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 04/24] fs: move the putname from filename_create to the callers Christoph Hellwig
2020-07-20 18:05   ` Linus Torvalds
2020-07-20 15:58 ` [PATCH 05/24] fs: move the putname from filename_lookup " Christoph Hellwig
2020-07-20 18:11   ` Al Viro
2020-07-20 15:58 ` [PATCH 06/24] fs: add a kern_chdir helper Christoph Hellwig
2020-07-20 18:17   ` Al Viro
2020-07-20 15:58 ` [PATCH 07/24] fs: add a kern_chroot helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 08/24] fs: add a kern_access helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 09/24] fs: add a kern_chown helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 10/24] fs: move the uid16 (f)chown syscalls to fs/open.c Christoph Hellwig
2020-07-20 15:58 ` [PATCH 11/24] fs: add a kern_chmod helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 12/24] fs: add a kern_utimes helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 13/24] fs: add a kern_mkdir helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 14/24] fs: add a kern_mknod helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 15/24] fs: add a kern_link helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 16/24] fs: add a kern_symlink helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 17/24] fs: add a kern_unlink helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 18/24] fs: add a kern_rmdir helper Christoph Hellwig
2020-07-20 15:58 ` [PATCH 19/24] fs: remove vfs_statx_fd Christoph Hellwig
2020-07-20 15:58 ` [PATCH 20/24] fs: implement vfs_stat and vfs_lstat in terms of vfs_fstatat Christoph Hellwig
2020-07-20 15:58 ` [PATCH 21/24] fs: move vfs_fstatat out of line Christoph Hellwig
2020-07-20 15:59 ` [PATCH 22/24] fs: remove vfs_stat_set_lookup_flags Christoph Hellwig
2020-07-20 15:59 ` [PATCH 23/24] fs: remove KSTAT_QUERY_FLAGS Christoph Hellwig
2020-07-20 15:59 ` [PATCH 24/24] fs: add a kern_stat helper Christoph Hellwig

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