Description of problem: For bug 450138, the kernel plock code was moved from gfs2 into the dlm. gfs_controld needs to be adapted to this change, and read plocks from either lock_dlm (kernels before 5.3), or dlm (kernels 5.3 and later). The misc device gfs_controld reads/writes has previously been called "lock_dlm_plock", but the patch for bug 450138 changes the name of the device to "dlm_plock". gfs_controld looks for "dlm_plock", and if it's not found, looks for "lock_dlm_plock". If "lock_dlm_plock" is found, it knows that the filesystem/lockspace id in the plock structures needs to be translated. Otherwise, the operation of plocks remains the same. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
I'm waiting to push this change to the RHEL5 branch until the patch for bug 450138 has been included in the RHEL5 kernel. That patch includes a new kernel header, dlm_plock.h, that is required for building the modified gfs_controld.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2009-0189.html