forked from Minki/linux
4875647a08
The "nodir" mode (statically assign master nodes instead of using the resource directory) has always been highly experimental, and never seriously used. This commit fixes a number of problems, making nodir much more usable. - Major change to recovery: recover all locks and restart all in-progress operations after recovery. In some cases it's not possible to know which in-progess locks to recover, so recover all. (Most require recovery in nodir mode anyway since rehashing changes most master nodes.) - Change the way nodir mode is enabled, from a command line mount arg passed through gfs2, into a sysfs file managed by dlm_controld, consistent with the other config settings. - Allow recovering MSTCPY locks on an rsb that has not yet been turned into a master copy. - Ignore RCOM_LOCK and RCOM_LOCK_REPLY recovery messages from a previous, aborted recovery cycle. Base this on the local recovery status not being in the state where any nodes should be sending LOCK messages for the current recovery cycle. - Hold rsb lock around dlm_purge_mstcpy_locks() because it may run concurrently with dlm_recover_master_copy(). - Maintain highbast on process-copy lkb's (in addition to the master as is usual), because the lkb can switch back and forth between being a master and being a process copy as the master node changes in recovery. - When recovering MSTCPY locks, flag rsb's that have non-empty convert or waiting queues for granting at the end of recovery. (Rename flag from LOCKS_PURGED to RECOVER_GRANT and similar for the recovery function, because it's not only resources with purged locks that need grant a grant attempt.) - Replace a couple of unnecessary assertion panics with error messages. Signed-off-by: David Teigland <teigland@redhat.com> |
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| .. | ||
| ast.c | ||
| ast.h | ||
| config.c | ||
| config.h | ||
| debug_fs.c | ||
| dir.c | ||
| dir.h | ||
| dlm_internal.h | ||
| Kconfig | ||
| lock.c | ||
| lock.h | ||
| lockspace.c | ||
| lockspace.h | ||
| lowcomms.c | ||
| lowcomms.h | ||
| lvb_table.h | ||
| main.c | ||
| Makefile | ||
| member.c | ||
| member.h | ||
| memory.c | ||
| memory.h | ||
| midcomms.c | ||
| midcomms.h | ||
| netlink.c | ||
| plock.c | ||
| rcom.c | ||
| rcom.h | ||
| recover.c | ||
| recover.h | ||
| recoverd.c | ||
| recoverd.h | ||
| requestqueue.c | ||
| requestqueue.h | ||
| user.c | ||
| user.h | ||
| util.c | ||
| util.h | ||