summaryrefslogtreecommitdiffstats
path: root/fs/fscache/operation.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/fscache/operation.c')
-rw-r--r--fs/fscache/operation.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index 18658ff..67594a8 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -312,9 +312,11 @@ void fscache_start_operations(struct fscache_object *object)
* cancel an operation that's pending on an object
*/
int fscache_cancel_op(struct fscache_operation *op,
- void (*do_cancel)(struct fscache_operation *))
+ void (*do_cancel)(struct fscache_operation *),
+ bool cancel_in_progress_op)
{
struct fscache_object *object = op->object;
+ bool put = false;
int ret;
_enter("OBJ%x OP%x}", op->object->debug_id, op->debug_id);
@@ -328,8 +330,19 @@ int fscache_cancel_op(struct fscache_operation *op,
ret = -EBUSY;
if (op->state == FSCACHE_OP_ST_PENDING) {
ASSERT(!list_empty(&op->pend_link));
- fscache_stat(&fscache_n_op_cancelled);
list_del_init(&op->pend_link);
+ put = true;
+ fscache_stat(&fscache_n_op_cancelled);
+ if (do_cancel)
+ do_cancel(op);
+ op->state = FSCACHE_OP_ST_CANCELLED;
+ if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
+ object->n_exclusive--;
+ if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
+ wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
+ ret = 0;
+ } else if (op->state == FSCACHE_OP_ST_IN_PROGRESS && cancel_in_progress_op) {
+ fscache_stat(&fscache_n_op_cancelled);
if (do_cancel)
do_cancel(op);
op->state = FSCACHE_OP_ST_CANCELLED;
@@ -337,10 +350,11 @@ int fscache_cancel_op(struct fscache_operation *op,
object->n_exclusive--;
if (test_and_clear_bit(FSCACHE_OP_WAITING, &op->flags))
wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
- fscache_put_operation(op);
ret = 0;
}
+ if (put)
+ fscache_put_operation(op);
spin_unlock(&object->lock);
_leave(" = %d", ret);
return ret;
OpenPOWER on IntegriCloud