mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-09 00:43:08 -04:00
6a404f475f
refcount_t, by design, checks for unwanted situations and provides warnings. It is rarely useful to have explicit warnings with refcount usage. In this case we have an explicit warning if a refcount_t reaches zero when decremented. Simply using refcount_dec() will provide a similar warning and also mark the refcount_t as saturated to avoid any possible use-after-free. This patch drops the warning and uses refcount_dec() instead of refcount_dec_and_test(). Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.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 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.