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Commit 9bc5ddda authored by Miklos Szeredi's avatar Miklos Szeredi
Browse files

[fuse] Fix accounting the number of waiting requests 



Properly accounting the number of waiting requests was forgotten in
"clean up request accounting" patch.

Signed-off-by: default avatarMiklos Szeredi <miklos@szeredi.hu>
parent 73ce8355

fs/fuse/dev.c

+19 −6
Original line number Diff line number Diff line
@@ -92,29 +92,38 @@ struct fuse_req *fuse_get_req(struct fuse_conn *fc) 
{

	struct fuse_req *req;

	sigset_t oldset;

	int intr;

	int err;



	atomic_inc(&fc->num_waiting);

	block_sigs(&oldset);

	err = wait_event_interruptible(fc->blocked_waitq, !fc->blocked);

	intr = wait_event_interruptible(fc->blocked_waitq, !fc->blocked);

	restore_sigs(&oldset);

	if (err)

		return ERR_PTR(-EINTR);

	err = -EINTR;

	if (intr)

		goto out;



	req = fuse_request_alloc();

	err = -ENOMEM;

	if (!req)

		return ERR_PTR(-ENOMEM);

		goto out;



	atomic_inc(&fc->num_waiting);

	fuse_request_init(req);

	req->in.h.uid = current->fsuid;

	req->in.h.gid = current->fsgid;

	req->in.h.pid = current->pid;

	req->waiting = 1;

	return req;



 out:

	atomic_dec(&fc->num_waiting);

	return ERR_PTR(err);

}



void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)

{

	if (atomic_dec_and_test(&req->count)) {

		if (req->waiting)

			atomic_dec(&fc->num_waiting);

		fuse_request_free(req);

	}
@@ -281,6 +290,10 @@ static void queue_request(struct fuse_conn *fc, struct fuse_req *req) 
		len_args(req->in.numargs, (struct fuse_arg *) req->in.args);

	list_add_tail(&req->list, &fc->pending);

	req->state = FUSE_REQ_PENDING;

	if (!req->waiting) {

		req->waiting = 1;

		atomic_inc(&fc->num_waiting);

	}

	wake_up(&fc->waitq);

	kill_fasync(&fc->fasync, SIGIO, POLL_IN);

}

fs/fuse/fuse_i.h

+3 −0
Original line number Diff line number Diff line
@@ -159,6 +159,9 @@ struct fuse_req { 
	/** Data is being copied to/from the request */

	unsigned locked:1;



	/** Request is counted as "waiting" */

	unsigned waiting:1;



	/** State of the request */

	enum fuse_req_state state;