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8b64f54c81
PIDFD_INFO_COREDUMP is only retrievable until the task has exited. After it has exited task->mm is NULL. So if the task didn't actually coredump we can't retrieve it's dumpability settings anymore. Only if the task did coredump will we have stashed the coredump information in the respective struct pid. Link: https://patch.msgid.link/20251028-work-coredump-signal-v1-15-ca449b7b7aa0@kernel.org Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.