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fc4ea4229c
The current way how lowcomms is configured is due configfs entries. Each comms configfs entry will create a lowcomms connection. Even the local connection itself will be stored as a lowcomms connection, although most functionality for a local lowcomms connection struct is not necessary. Now in some scenarios we will see that dlm_controld reports a -EEXIST when configure a node via configfs: ... /sys/kernel/config/dlm/cluster/comms/1/addr: write failed: 17 -1 Doing a: cat /sys/kernel/config/dlm/cluster/comms/1/addr_list reported nothing. This was being seen on cluster with nodeid 1 and it's local configuration. To be sure the configfs entries are in sync with lowcomms connection structures we always call dlm_midcomms_close() to be sure the lowcomms connection gets removed when the configfs entry gets dropped. Before commit07ee38674a("fs: dlm: filter ourself midcomms calls") it was just doing this by accident and the filter by doing: if (nodeid == dlm_our_nodeid()) return 0; inside dlm_midcomms_close() was never been hit because drop_comm() sets local_comm to NULL and cause that dlm_our_nodeid() returns always the invalid nodeid 0. Fixes:07ee38674a("fs: dlm: filter ourself midcomms calls") Cc: stable@vger.kernel.org Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@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.