ocfs2/dlm: do not insert a new mle when another process is already migrating

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When two processes are migrating the same lockres,
dlm_add_migration_mle() return -EEXIST, but insert a new mle in hash
list.  dlm_migrate_lockres() will detach the old mle and free the new
one which is already in hash list, that will destroy the list.

Signed-off-by: Jiufei Xue <xuejiufei@huawei.com>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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xuejiufei 2016-01-14 15:17:41 -08:00 • committed by Linus Torvalds

parent bef5502de0

commit 32e493265b

1 changed files with 3 additions and 2 deletions

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fs/ocfs2/dlm/dlmmaster.c

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