[DLM] fix grant_after_purge softlockup

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In dlm_grant_after_purge() we were holding a hash table read_lock while
calling put_rsb() which potentially removes the rsb from the hash table,
taking the same lock in write.  Fix this by flagging rsb's ahead of time
that have been purged.  Then iteratively read_lock the hash table, find a
flagged rsb, unlock, process rsb.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

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David Teigland 2006-05-02 13:34:03 -04:00 • committed by Steven Whitehouse

parent d2d7b8a2a7

commit 97a35d1e5f

3 changed files with 30 additions and 15 deletions

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1

fs/dlm/dlm_internal.h

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42

fs/dlm/lock.c

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2

fs/dlm/lock.h

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