From: Al Viro <viro@ZenIV.linux.org.uk>
To: linux-kernel@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>, Oleg Nesterov <oleg@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Christoph Hellwig <hch@lst.de>
Subject: [RFC][PATCHSET] wait4()/waitid() cleanups
Date: Mon, 15 May 2017 23:31:57 +0100 [thread overview]
Message-ID: <20170515223157.GM390@ZenIV.linux.org.uk> (raw)
This series switches compat wait4() and waitid() variants away
from set_fs() use. A couple of helpers (kernel_wait4() and kernel_waitid())
are introduced, copying siginfo/rusage to userland is taken to sys_wait...().
That allows both to simplify the guts of do_wait() machinery and avoid
messing with set_fs() in compat variants of these syscalls.
Lightly tested, seems to survive without regressions. Please,
review.
next reply other threads:[~2017-05-15 22:32 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-15 22:31 Al Viro [this message]
2017-05-15 22:37 ` [PATCH 1/8] move compat wait4 and waitid next to native variants Al Viro
2017-05-15 22:37 ` [PATCH 2/8] wait4(2)/waitid(2): separate copying rusage to userland Al Viro
2017-05-15 22:37 ` [PATCH 3/8] kernel_wait4()/kernel_waitid(): delay copying status " Al Viro
2017-05-15 22:37 ` [PATCH 4/8] waitid(2): leave copyout of siginfo to syscall itself Al Viro
2017-05-15 23:06 ` Linus Torvalds
2017-05-15 23:46 ` Al Viro
2017-05-17 19:48 ` Eric W. Biederman
2017-05-15 22:37 ` [PATCH 5/8] lift getrusage() from wait_noreap_copyout() Al Viro
2017-05-15 22:37 ` [PATCH 6/8] kill wait_noreap_copyout() Al Viro
2017-05-15 22:37 ` [PATCH 7/8] wait_task_zombie: consolidate info logics Al Viro
2017-05-15 22:37 ` [PATCH 8/8] waitid(): switch copyout of siginfo to unsafe_put_user() Al Viro
2017-05-16 3:55 ` kbuild test robot
2017-05-16 4:17 ` kbuild test robot
2017-05-19 6:08 ` [lkp-robot] [waitid()] 75f64d68f9: Kernel_panic-not_syncing:Attempted_to_kill_init!exitcode= kernel test robot
2017-05-21 7:34 ` Al Viro
2017-05-21 19:04 ` Linus Torvalds
2017-05-21 19:35 ` Linus Torvalds
2017-05-21 21:14 ` Al Viro
2017-05-21 21:37 ` Linus Torvalds
2017-05-21 22:19 ` Linus Torvalds
2017-05-22 1:39 ` Linus Torvalds
2017-05-17 19:57 ` [RFC][PATCHSET] wait4()/waitid() cleanups Eric W. Biederman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170515223157.GM390@ZenIV.linux.org.uk \
--to=viro@zeniv.linux.org.uk \
--cc=hch@lst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=peterz@infradead.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox