Carlos Llamas a8a570c6d0 binder: hold fd_install until allocating fds first
Al noted in [1] that fd_install can't be undone, so it must come last in
the fd translation sequence, only after we've successfully reserved all
descriptors and copied them into the transaction buffer.

This patch takes Al's proposed fix in [2] and makes a few tweaks to fold
the traversal of t->fd_fixups during release.

[1] https://lore.kernel.org/driverdev-devel/YHnJwRvUhaK3IM0l@zeniv-ca.linux.org.uk
[2] https://lore.kernel.org/driverdev-devel/YHo6Ln9VI1T7RmLK@zeniv-ca.linux.org.uk

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220325232454.2210817-1-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-22 17:21:49 +02:00
2022-04-10 14:21:36 -10:00

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 Restructured Text 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.
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