d434c00fa3
The rcu_scheduler_active flag is set to RCU_SCHEDULER_RUNNING once the scheduler is up and running. That signal is used in order to check and queue a "monitor work" to reclaim freed objects (if there are any) during early boot. This flag is used by kvfree_rcu() to determine when work can safely be queued, at which point memory passed to earlier invocations of kvfree_rcu() can be processed. However, only "krcp->head" is checked for objects that need to be released, and there are now two more, namely, "krcp->bkvhead[0]" and "krcp->bkvhead[1]". Therefore, check these two additional channels. Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@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 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.