d73d003521
mm_update_next_owner() checks the children / real_parent->children to avoid the "everything else" loop in the likely case, but this won't work if a child/sibling has a zombie leader with ->mm == NULL. Move the for_each_thread() logic into try_to_set_owner(), if nothing else this makes the children/siblings/everything searches more consistent. Link: https://lkml.kernel.org/r/20240626152930.GA17936@redhat.com Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Christian Brauner <brauner@kernel.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jinliang Zheng <alexjlzheng@tencent.com> Cc: Mateusz Guzik <mjguzik@gmail.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Tycho Andersen <tandersen@netflix.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.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.