18c1db313e
When trying to upgrade the iopen glock, gfs2_upgrade_iopen_glock() tries to take the iopen glock with the LM_FLAG_TRY_1CB flag set before trying to take it without the LM_FLAG_TRY or LM_FLAG_TRY_1CB flags set. Both calls will cause the lock contention bast callbacks to be invoked throughout the cluster, and we really don't need them to be invoked twice. Remove the first LM_FLAG_TRY_1CB call to eliminate unnecessary dlm traffic. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.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.