Re: [PATCH 1/2] pid: add pidfd_open()
From: Aleksa Sarai <hidden>
Date: 2019-05-15 14:51:52
Also in:
linux-alpha, linux-api, linux-arch, linux-arm-kernel, linux-kselftest, linux-mips, linux-s390, linux-sh, lkml, sparclinux
On 2019-05-15, Christian Brauner [off-list ref] wrote:
On Wed, May 15, 2019 at 04:00:20PM +0200, Yann Droneaud wrote:quoted
Would it be possible to create file descriptor with "restricted" operation ? - O_RDONLY: waiting for process completion allowed (for example) - O_WRONLY: sending process signal allowedYes, something like this is likely going to be possible in the future. We had discussion around this. But mapping this to O_RDONLY and O_WRONLY is not the right model. It makes more sense to have specialized flags that restrict actions.
Not to mention that the O_* flags have silly values which we shouldn't replicate in new syscalls IMHO. -- Aleksa Sarai Senior Software Engineer (Containers) SUSE Linux GmbH <https://www.cyphar.com/>
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