diff options
| -rw-r--r-- | fs/orangefs/devorangefs-req.c | 20 | ||||
| -rw-r--r-- | fs/orangefs/orangefs-kernel.h | 2 | ||||
| -rw-r--r-- | fs/orangefs/waitqueue.c | 22 |
3 files changed, 21 insertions, 23 deletions
diff --git a/fs/orangefs/devorangefs-req.c b/fs/orangefs/devorangefs-req.c index 89c282afeb29..f7914f5d296f 100644 --- a/fs/orangefs/devorangefs-req.c +++ b/fs/orangefs/devorangefs-req.c @@ -58,9 +58,9 @@ static struct orangefs_kernel_op_s *orangefs_devreq_remove_op(__u64 tag) next, &htable_ops_in_progress[index], list) { - if (op->tag == tag && !op_state_purged(op)) { + if (op->tag == tag && !op_state_purged(op) && + !op_state_given_up(op)) { list_del_init(&op->list); - get_op(op); /* increase ref count. */ spin_unlock(&htable_ops_in_progress_lock); return op; } @@ -133,7 +133,7 @@ restart: __s32 fsid; /* This lock is held past the end of the loop when we break. */ spin_lock(&op->lock); - if (unlikely(op_state_purged(op))) { + if (unlikely(op_state_purged(op) || op_state_given_up(op))) { spin_unlock(&op->lock); continue; } @@ -199,13 +199,12 @@ restart: */ if (op_state_in_progress(cur_op) || op_state_serviced(cur_op)) { gossip_err("orangefs: ERROR: Current op already queued.\n"); - list_del(&cur_op->list); + list_del_init(&cur_op->list); spin_unlock(&cur_op->lock); spin_unlock(&orangefs_request_list_lock); return -EAGAIN; } list_del_init(&cur_op->list); - get_op(op); spin_unlock(&orangefs_request_list_lock); spin_unlock(&cur_op->lock); @@ -230,7 +229,7 @@ restart: if (unlikely(op_state_given_up(cur_op))) { spin_unlock(&cur_op->lock); spin_unlock(&htable_ops_in_progress_lock); - op_release(cur_op); + complete(&cur_op->waitq); goto restart; } @@ -242,7 +241,6 @@ restart: orangefs_devreq_add_op(cur_op); spin_unlock(&cur_op->lock); spin_unlock(&htable_ops_in_progress_lock); - op_release(cur_op); /* The client only asks to read one size buffer. */ return MAX_DEV_REQ_UPSIZE; @@ -258,10 +256,12 @@ error: if (likely(!op_state_given_up(cur_op))) { set_op_state_waiting(cur_op); list_add(&cur_op->list, &orangefs_request_list); + spin_unlock(&cur_op->lock); + } else { + spin_unlock(&cur_op->lock); + complete(&cur_op->waitq); } - spin_unlock(&cur_op->lock); spin_unlock(&orangefs_request_list_lock); - op_release(cur_op); return -EFAULT; } @@ -405,11 +405,11 @@ wakeup: put_cancel(op); } else if (unlikely(op_state_given_up(op))) { spin_unlock(&op->lock); + complete(&op->waitq); } else { set_op_state_serviced(op); spin_unlock(&op->lock); } - op_release(op); return ret; Efault: diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h index 1d20eadaefd8..7d0c8b3afc7e 100644 --- a/fs/orangefs/orangefs-kernel.h +++ b/fs/orangefs/orangefs-kernel.h @@ -259,7 +259,7 @@ static inline void set_op_state_purged(struct orangefs_kernel_op_s *op) { spin_lock(&op->lock); if (unlikely(op_is_cancel(op))) { - list_del(&op->list); + list_del_init(&op->list); spin_unlock(&op->lock); put_cancel(op); } else { diff --git a/fs/orangefs/waitqueue.c b/fs/orangefs/waitqueue.c index d980240b0fa7..3f9e43066444 100644 --- a/fs/orangefs/waitqueue.c +++ b/fs/orangefs/waitqueue.c @@ -208,15 +208,20 @@ static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s * Called with op->lock held. */ op->op_state |= OP_VFS_STATE_GIVEN_UP; - - if (op_state_waiting(op)) { + /* from that point on it can't be moved by anybody else */ + if (list_empty(&op->list)) { + /* caught copying to/from daemon */ + BUG_ON(op_state_serviced(op)); + spin_unlock(&op->lock); + wait_for_completion(&op->waitq); + } else if (op_state_waiting(op)) { /* * upcall hasn't been read; remove op from upcall request * list. */ spin_unlock(&op->lock); spin_lock(&orangefs_request_list_lock); - list_del(&op->list); + list_del_init(&op->list); spin_unlock(&orangefs_request_list_lock); gossip_debug(GOSSIP_WAIT_DEBUG, "Interrupted: Removed op %p from request_list\n", @@ -225,23 +230,16 @@ static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s /* op must be removed from the in progress htable */ spin_unlock(&op->lock); spin_lock(&htable_ops_in_progress_lock); - list_del(&op->list); + list_del_init(&op->list); spin_unlock(&htable_ops_in_progress_lock); gossip_debug(GOSSIP_WAIT_DEBUG, "Interrupted: Removed op %p" " from htable_ops_in_progress\n", op); - } else if (!op_state_serviced(op)) { + } else { spin_unlock(&op->lock); gossip_err("interrupted operation is in a weird state 0x%x\n", op->op_state); - } else { - /* - * It is not intended for execution to flow here, - * but having this unlock here makes sparse happy. - */ - gossip_err("%s: can't get here.\n", __func__); - spin_unlock(&op->lock); } reinit_completion(&op->waitq); } |