FS-Cache: Fix cancellation of in-progress operation
Cancellation of an in-progress operation needs to update the relevant counters
and start any operations that are pending waiting on this one.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Steve Dickson <steved@redhat.com>
Acked-by: Jeff Layton <jeff.layton@primarydata.com>
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index 9761df4..b6bf5f3 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -365,6 +365,13 @@
wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
ret = 0;
} else if (op->state == FSCACHE_OP_ST_IN_PROGRESS && cancel_in_progress_op) {
+ ASSERTCMP(object->n_in_progress, >, 0);
+ if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
+ object->n_exclusive--;
+ object->n_in_progress--;
+ if (object->n_in_progress == 0)
+ fscache_start_operations(object);
+
fscache_stat(&fscache_n_op_cancelled);
if (do_cancel)
do_cancel(op);