diff options
| -rw-r--r-- | fs/pipe.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index 25aa09f9d09d..2c7a23dde2d8 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -415,6 +415,10 @@ pipe_poll(struct file *filp, poll_table *wait) if (filp->f_mode & FMODE_WRITE) { mask |= (nrbufs < PIPE_BUFFERS) ? POLLOUT | POLLWRNORM : 0; + /* + * Most Unices do not set POLLERR for FIFOs but on Linux they + * behave exactly like pipes for poll(). + */ if (!PIPE_READERS(*inode)) mask |= POLLERR; } @@ -422,9 +426,6 @@ pipe_poll(struct file *filp, poll_table *wait) return mask; } -/* FIXME: most Unices do not set POLLERR for fifos */ -#define fifo_poll pipe_poll - static int pipe_release(struct inode *inode, int decr, int decw) { @@ -568,7 +569,7 @@ struct file_operations read_fifo_fops = { .read = pipe_read, .readv = pipe_readv, .write = bad_pipe_w, - .poll = fifo_poll, + .poll = pipe_poll, .ioctl = pipe_ioctl, .open = pipe_read_open, .release = pipe_read_release, @@ -580,7 +581,7 @@ struct file_operations write_fifo_fops = { .read = bad_pipe_r, .write = pipe_write, .writev = pipe_writev, - .poll = fifo_poll, + .poll = pipe_poll, .ioctl = pipe_ioctl, .open = pipe_write_open, .release = pipe_write_release, @@ -593,7 +594,7 @@ struct file_operations rdwr_fifo_fops = { .readv = pipe_readv, .write = pipe_write, .writev = pipe_writev, - .poll = fifo_poll, + .poll = pipe_poll, .ioctl = pipe_ioctl, .open = pipe_rdwr_open, .release = pipe_rdwr_release, |