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Commit c8c727db authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: fix lock annotations
  fuse: flush background queue on connection close
parents 4f63e3c5 b9ca67b2

fs/fuse/dev.c

+26 −16
Original line number Diff line number Diff line
@@ -276,7 +276,7 @@ static void flush_bg_queue(struct fuse_conn *fc) 
 * Called with fc->lock, unlocks it

 */

static void request_end(struct fuse_conn *fc, struct fuse_req *req)

__releases(&fc->lock)

__releases(fc->lock)

{

	void (*end) (struct fuse_conn *, struct fuse_req *) = req->end;

	req->end = NULL;
@@ -306,8 +306,8 @@ __releases(&fc->lock) 


static void wait_answer_interruptible(struct fuse_conn *fc,

				      struct fuse_req *req)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	if (signal_pending(current))

		return;
@@ -325,8 +325,8 @@ static void queue_interrupt(struct fuse_conn *fc, struct fuse_req *req) 
}



static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	if (!fc->no_interrupt) {

		/* Any signal may interrupt this */
@@ -905,8 +905,8 @@ static int request_pending(struct fuse_conn *fc) 


/* Wait until a request is available on the pending list */

static void request_wait(struct fuse_conn *fc)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	DECLARE_WAITQUEUE(wait, current);
@@ -934,7 +934,7 @@ __acquires(&fc->lock) 
 */

static int fuse_read_interrupt(struct fuse_conn *fc, struct fuse_copy_state *cs,

			       size_t nbytes, struct fuse_req *req)

__releases(&fc->lock)

__releases(fc->lock)

{

	struct fuse_in_header ih;

	struct fuse_interrupt_in arg;
@@ -1720,8 +1720,8 @@ static unsigned fuse_dev_poll(struct file *file, poll_table *wait) 
 * This function releases and reacquires fc->lock

 */

static void end_requests(struct fuse_conn *fc, struct list_head *head)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	while (!list_empty(head)) {

		struct fuse_req *req;
@@ -1744,8 +1744,8 @@ __acquires(&fc->lock) 
 * locked).

 */

static void end_io_requests(struct fuse_conn *fc)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	while (!list_empty(&fc->io)) {

		struct fuse_req *req =
@@ -1769,6 +1769,16 @@ __acquires(&fc->lock) 
	}

}



static void end_queued_requests(struct fuse_conn *fc)

__releases(fc->lock)

__acquires(fc->lock)

{

	fc->max_background = UINT_MAX;

	flush_bg_queue(fc);

	end_requests(fc, &fc->pending);

	end_requests(fc, &fc->processing);

}



/*

 * Abort all requests.

 *
@@ -1795,8 +1805,7 @@ void fuse_abort_conn(struct fuse_conn *fc) 
		fc->connected = 0;

		fc->blocked = 0;

		end_io_requests(fc);

		end_requests(fc, &fc->pending);

		end_requests(fc, &fc->processing);

		end_queued_requests(fc);

		wake_up_all(&fc->waitq);

		wake_up_all(&fc->blocked_waitq);

		kill_fasync(&fc->fasync, SIGIO, POLL_IN);
@@ -1811,8 +1820,9 @@ int fuse_dev_release(struct inode *inode, struct file *file) 
	if (fc) {

		spin_lock(&fc->lock);

		fc->connected = 0;

		end_requests(fc, &fc->pending);

		end_requests(fc, &fc->processing);

		fc->blocked = 0;

		end_queued_requests(fc);

		wake_up_all(&fc->blocked_waitq);

		spin_unlock(&fc->lock);

		fuse_conn_put(fc);

	}

fs/fuse/file.c

+4 −4
Original line number Diff line number Diff line
@@ -1144,8 +1144,8 @@ static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req) 


/* Called under fc->lock, may release and reacquire it */

static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	struct fuse_inode *fi = get_fuse_inode(req->inode);

	loff_t size = i_size_read(req->inode);
@@ -1183,8 +1183,8 @@ __acquires(&fc->lock) 
 * Called with fc->lock

 */

void fuse_flush_writepages(struct inode *inode)

__releases(&fc->lock)

__acquires(&fc->lock)

__releases(fc->lock)

__acquires(fc->lock)

{

	struct fuse_conn *fc = get_fuse_conn(inode);

	struct fuse_inode *fi = get_fuse_inode(inode);