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| author |   Xue jiufei <xuejiufei@huawei.com> | 2013-11-12 15:07:00 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 12:09:01 +0900 |
| commit | fae477b6f005d6bd8a6fb3f052b30d55cfa70c26 (patch) | |
| tree | f6f658c03c701a49eb3bc339efad7d1e0d2048a0 /fs/ocfs2/cluster | |
| parent | ocfs2: skip locks in the blocked list (diff) | |
| download | linux-dev-fae477b6f005d6bd8a6fb3f052b30d55cfa70c26.tar.xz linux-dev-fae477b6f005d6bd8a6fb3f052b30d55cfa70c26.zip | |
ocfs2: delay migration when the lockres is in migration state
We trigger a bug in __dlm_lockres_reserve_ast() when we parallel umount 4
nodes. The situation is as follows:
1) Node A migrate all lockres it owned(eg. lockres A) to other nodes
say node B when it umounts.
2) Receiving MIG_LOCKRES message from A, Node B masters the lockres A
with DLM_LOCK_RES_MIGRATING state set.
3) Then we umount ocfs2 on node B. It also should migrate lockres A to
another node, say node C. But now, DLM_LOCK_RES_MIGRATING state of
lockers A is not cleared. Node B triggered the BUG on lockres with
state DLM_LOCK_RES_MIGRATING.
Signed-off-by: Xuejiufei <xuejiufei@huawei.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Tariq Saeed <tariq.x.saeed@oracle.com>
Cc: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions