From: ebiederm@xmission.com (Eric W. Biederman)
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dmitry Kadashev <dkadashev@gmail.com>,
Jens Axboe <axboe@kernel.dk>, io-uring <io-uring@vger.kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 1/2] fs: make do_mkdirat() take struct filename
Date: Wed, 31 Mar 2021 11:28:04 -0500 [thread overview]
Message-ID: <m1ft0bqodn.fsf@fess.ebiederm.org> (raw)
In-Reply-To: <20210201152947.GR740243@zeniv-ca> (Al Viro's message of "Mon, 1 Feb 2021 15:29:47 +0000")
Al Viro <viro@zeniv.linux.org.uk> writes:
> On Mon, Feb 01, 2021 at 03:00:42PM +0000, Al Viro wrote:
>
>> The last one is the easiest to answer - we want to keep the imported strings
>> around for audit. It's not so much a proper refcounting as it is "we might
>> want freeing delayed" implemented as refcount.
>
> BTW, regarding io_uring + audit interactions - just how is that supposed to
> work if you offload any work that might lead to audit records (on permission
> checks, etc.) to helper threads?
For people looking into these details. Things have gotten much better
recently.
The big change is that io_uring helper threads are now proper
threads of the process that is using io_uring. The io_uring helper
threads just happen to never execute any userspace code.
Eric
next prev parent reply other threads:[~2021-03-31 16:29 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-16 4:45 [PATCH 0/2] io_uring: add mkdirat support Dmitry Kadashev
2020-11-16 4:45 ` [PATCH 1/2] fs: make do_mkdirat() take struct filename Dmitry Kadashev
2021-01-25 4:38 ` Jens Axboe
2021-01-26 22:55 ` Al Viro
2021-02-01 11:09 ` Dmitry Kadashev
2021-02-01 15:00 ` Al Viro
2021-02-01 15:29 ` Al Viro
2021-03-31 16:28 ` Eric W. Biederman [this message]
2021-03-31 16:46 ` Al Viro
2021-02-02 4:39 ` Dmitry Kadashev
2020-11-16 4:45 ` [PATCH 2/2] io_uring: add support for IORING_OP_MKDIRAT Dmitry Kadashev
2020-12-04 10:57 ` [PATCH 0/2] io_uring: add mkdirat support Dmitry Kadashev
2020-12-15 11:43 ` Dmitry Kadashev
2020-12-15 16:20 ` Jens Axboe
2020-12-16 6:05 ` Dmitry Kadashev
2021-01-20 8:21 ` Dmitry Kadashev
2021-01-26 22:35 ` Jens Axboe
2021-01-27 11:06 ` Dmitry Kadashev
2021-01-27 16:22 ` Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2020-11-11 13:25 Dmitry Kadashev
2020-11-11 13:25 ` [PATCH 1/2] fs: make do_mkdirat() take struct filename Dmitry Kadashev
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