X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=fs%2Fpipe.c;h=a234035cc375d8f161cf7e60825e2edeef335a6c;hb=refs%2Fheads%2Faccepted%2Ftizen_unified_toolchain;hp=139190165a1c2231ebb90fb364ee8bdb299b2b16;hpb=75e167c2f63c45317f18170c1dee1df2167098c2;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/fs/pipe.c b/fs/pipe.c
index 1391901..a234035 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -437,12 +437,10 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 		goto out;
 	}
 
-#ifdef CONFIG_WATCH_QUEUE
-	if (pipe->watch_queue) {
+	if (pipe_has_watch_queue(pipe)) {
 		ret = -EXDEV;
 		goto out;
 	}
-#endif
 
 	/*
 	 * If it wasn't empty we try to merge new data into
@@ -1307,6 +1305,11 @@ int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots)
 	pipe->tail = tail;
 	pipe->head = head;
 
+	if (!pipe_has_watch_queue(pipe)) {
+		pipe->max_usage = nr_slots;
+		pipe->nr_accounted = nr_slots;
+	}
+
 	spin_unlock_irq(&pipe->rd_wait.lock);
 
 	/* This might have made more room for writers */
@@ -1324,10 +1327,8 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned int arg)
 	unsigned int nr_slots, size;
 	long ret = 0;
 
-#ifdef CONFIG_WATCH_QUEUE
-	if (pipe->watch_queue)
+	if (pipe_has_watch_queue(pipe))
 		return -EBUSY;
-#endif
 
 	size = round_pipe_size(arg);
 	nr_slots = size >> PAGE_SHIFT;
@@ -1360,8 +1361,6 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned int arg)
 	if (ret < 0)
 		goto out_revert_acct;
 
-	pipe->max_usage = nr_slots;
-	pipe->nr_accounted = nr_slots;
 	return pipe->max_usage * PAGE_SIZE;
 
 out_revert_acct:
@@ -1379,10 +1378,8 @@ struct pipe_inode_info *get_pipe_info(struct file *file, bool for_splice)
 
 	if (file->f_op != &pipefifo_fops || !pipe)
 		return NULL;
-#ifdef CONFIG_WATCH_QUEUE
-	if (for_splice && pipe->watch_queue)
+	if (for_splice && pipe_has_watch_queue(pipe))
 		return NULL;
-#endif
 	return pipe;
 }