From: Alexander Aring aahringo@redhat.com
[ Upstream commit a800ba77fd285c6391a82819867ac64e9ab3af46 ]
This patch moves the return of FILE_LOCK_DEFERRED a little bit earlier than checking afterwards again if the request was an asynchronous request.
Signed-off-by: Alexander Aring aahringo@redhat.com Signed-off-by: David Teigland teigland@redhat.com Stable-dep-of: 59e45c758ca1 ("fs: dlm: interrupt posix locks only when process is killed") Signed-off-by: Sasha Levin sashal@kernel.org --- fs/dlm/plock.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c index e70e23eca03ec..01fb7d8c0bca5 100644 --- a/fs/dlm/plock.c +++ b/fs/dlm/plock.c @@ -149,26 +149,25 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file, op_data->file = file;
op->data = op_data; + + send_op(op); + rv = FILE_LOCK_DEFERRED; + goto out; } else { op->info.owner = (__u64)(long) fl->fl_owner; }
send_op(op);
- if (!op->data) { - rv = wait_event_interruptible(recv_wq, (op->done != 0)); - if (rv == -ERESTARTSYS) { - log_debug(ls, "dlm_posix_lock: wait killed %llx", - (unsigned long long)number); - spin_lock(&ops_lock); - list_del(&op->list); - spin_unlock(&ops_lock); - dlm_release_plock_op(op); - do_unlock_close(ls, number, file, fl); - goto out; - } - } else { - rv = FILE_LOCK_DEFERRED; + rv = wait_event_interruptible(recv_wq, (op->done != 0)); + if (rv == -ERESTARTSYS) { + log_debug(ls, "%s: wait killed %llx", __func__, + (unsigned long long)number); + spin_lock(&ops_lock); + list_del(&op->list); + spin_unlock(&ops_lock); + dlm_release_plock_op(op); + do_unlock_close(ls, number, file, fl); goto out; }