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From: Al Viro <viro@zeniv.linux.org.uk>
To: Christoph Hellwig <hch@lst.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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: Re: add file system helpers that take kernel pointers for the init code v4
Date: Fri, 31 Jul 2020 03:14:24 +0100 [thread overview]
Message-ID: <20200731021424.GG1236603@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20200730062524.GA17980@lst.de>
On Thu, Jul 30, 2020 at 08:25:24AM +0200, Christoph Hellwig wrote:
> On Wed, Jul 29, 2020 at 08:51:17PM +0100, Al Viro wrote:
> > On Tue, Jul 28, 2020 at 06:33:53PM +0200, Christoph Hellwig wrote:
> > > Hi Al and Linus,
> > >
> > > 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. These helpers are in init/ and marked __init and thus will
> > > be discarded after bootup. A few also need to be duplicated in devtmpfs,
> > > though unfortunately.
> > >
> > > The series sits on top of my previous
> > >
> > > "decruft the early init / initrd / initramfs code v2"
> >
> > Could you fold the fixes in the parent branch to avoid the bisect hazards?
> > As it is, you have e.g. "initd: pass a non-f_pos offset to kernel_read/kernel_write"
> > that ought to go into "initrd: switch initrd loading to struct file based APIs"...
>
> I'm not a huge fan of rebasing after it has been out for a long time and
> with pending other patches on top of it. But at your request I've now
> folded the fixes and force pushed it.
Um...
Christoph Hellwig (28):
[snip]
initramfs: switch initramfs unpacking to struct file based APIs
initramfs: switch initramfs unpacking to struct file based APIs
[snip]
It's not a bisect hazard, of course, but if you don't fold those
together, you might at least want to give the second one a different
commit summary... I hadn't been able to find an analogue of #init_path on
top of that either.
As it is, #init-user-pointers is fine (aside of that SNAFU with unfolded
pair of commits), and so's the contents of #init_path part following what
used to be #init-user-pointers, but it'll be an awful mess on merge in
the current shape.
I can sort it out myself, if you don't mind that; again, I'm OK with
the contents and I've no problem with doing reordering/folding.
next prev parent reply other threads:[~2020-07-31 2:14 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 16:33 add file system helpers that take kernel pointers for the init code v4 Christoph Hellwig
2020-07-28 16:33 ` [PATCH 01/23] fs: refactor do_mount Christoph Hellwig
2020-07-28 16:33 ` [PATCH 02/23] fs: refactor ksys_umount Christoph Hellwig
2020-08-06 14:44 ` Naresh Kamboju
2020-08-17 13:44 ` Naresh Kamboju
2020-07-28 16:33 ` [PATCH 03/23] fs: push the getname from do_rmdir into the callers Christoph Hellwig
2020-07-28 16:33 ` [PATCH 04/23] devtmpfs: refactor devtmpfsd() Christoph Hellwig
2020-07-28 16:59 ` Greg Kroah-Hartman
2020-07-28 16:33 ` [PATCH 05/23] init: initialize ramdisk_execute_command at compile time Christoph Hellwig
2020-07-28 16:33 ` [PATCH 06/23] init: mark console_on_rootfs as __init Christoph Hellwig
2020-07-28 16:34 ` [PATCH 07/23] init: mark create_dev " Christoph Hellwig
2020-07-28 16:34 ` [PATCH 08/23] init: add an init_mount helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 09/23] init: add an init_umount helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 10/23] init: add an init_unlink helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 11/23] init: add an init_rmdir helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 12/23] init: add an init_chdir helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 13/23] init: add an init_chroot helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 14/23] init: add an init_chown helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 15/23] init: add an init_chmod helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 16/23] init: add an init_eaccess helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 17/23] init: add an init_link helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 18/23] init: add an init_symlink helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 19/23] init: add an init_mkdir helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 20/23] init: add an init_mknod helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 21/23] init: add an init_stat helper Christoph Hellwig
2020-09-04 13:53 ` [PATCH] init: fix error check in clean_path() Barret Rhoden
2020-09-04 16:04 ` Christoph Hellwig
2020-07-28 16:34 ` [PATCH 22/23] init: add an init_utimes helper Christoph Hellwig
2020-07-28 16:34 ` [PATCH 23/23] init: add an init_dup helper Christoph Hellwig
2020-07-29 19:51 ` add file system helpers that take kernel pointers for the init code v4 Al Viro
2020-07-30 6:25 ` Christoph Hellwig
2020-07-31 2:14 ` Al Viro [this message]
2020-07-31 6:33 ` Christoph Hellwig
2020-08-03 14:56 ` Qian Cai
2020-08-03 15:08 ` Christoph Hellwig
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