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Commit ba28b93a authored by Akshat Aranya's avatar Akshat Aranya Committed by Linus Torvalds
Browse files

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: default avatarAkshat Aranya <aranya@nec-labs.com>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent acda4721

fs/fscache/operation.c

+1 −1
Original line number Diff line number Diff line
@@ -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);