From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCHSET] Fix io_uring async rlimit(RLIMIT_NOFILE)
Date: Thu, 19 Mar 2020 20:22:14 -0600 [thread overview]
Message-ID: <20200320022216.20993-1-axboe@kernel.dk> (raw)
If we handle openat/openat2/accept in an async manner, then we need
to ensure that the max open file limit is honored. All of these end
up boiling down to the check in get_unused_fd_flags(), which does
rlimit(RLIMIT_NOFILE), which uses the current->signal->rlim[] limits.
Instead of fiddling with the task ->signal pointer, just allow us to
pass in the correct value as set from the original task at request
prep time.
--
Jens Axboe
next reply other threads:[~2020-03-20 2:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-20 2:22 Jens Axboe [this message]
2020-03-20 2:22 ` [PATCH 1/2] io_uring: make sure openat/openat2 honor rlimit nofile Jens Axboe
2020-03-20 4:43 ` David Miller
2020-03-20 2:22 ` [PATCH 2/2] io_uring: make sure accept " Jens Axboe
2020-03-20 4:43 ` David Miller
2020-03-20 14:48 ` Jens Axboe
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=20200320022216.20993-1-axboe@kernel.dk \
--to=axboe@kernel.dk \
--cc=davem@davemloft.net \
--cc=io-uring@vger.kernel.org \
--cc=netdev@vger.kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.