diff options
| -rw-r--r-- | fs/pipe.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index d7b8d3f22987..aba2455caabe 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -463,6 +463,11 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from) spin_lock_irq(&pipe->wait.lock); head = pipe->head; + if (pipe_full(head, pipe->tail, max_usage)) { + spin_unlock_irq(&pipe->wait.lock); + continue; + } + pipe->head = head + 1; /* Always wake up, even if the copy fails. Otherwise |