FS-Cache: Fix operation handling

fscache_submit_exclusive_op() adds an operation to the pending list if other operations are pending. Fix the check for pending ops as n_ops must be greater than 0 at the point it is checked as it is incremented immediately before under lock. Signed-off-by: Akshat Aranya <[email protected]> Signed-off-by: David Howells <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
zuai · Jan 14, 2011 · ba28b93 · ba28b93
1 parent acda472
commit ba28b93
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
@@ -101,7 +101,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
 		object->n_ops++;
 		object->n_exclusive++;	/* reads and writes must wait */
 
-		if (object->n_ops > 0) {
+		if (object->n_ops > 1) {
 			atomic_inc(&op->usage);
 			list_add_tail(&op->pend_link, &object->pending_ops);
 			fscache_stat(&fscache_n_op_pend);