9f6e1f7bb0
On fstest generic/388, we were seeing sporadic deadlocks in the emergency shutdown, where we'd get stuck shutting down the allocator because bch2_btree_update_start() -> bch2_btree_reserve_get() allocated and then deallocated some btree nodes, putting them back on the btree_reserve_cache, after the allocator shutdown code had already cleared out that cache. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
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.