pipe: drop an always true check in anon_pipe_write()

The check operates on the stale value of 'head' and always loops back.

Just do it unconditionally. No functional changes.

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://lore.kernel.org/r/20250303230409.452687-2-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/pipe.c b/fs/pipe.c
index b0641f75b1bae931821f136f234f91fe6dc62b6b..b60487b650cb730db22fc6a62c998b094f806e00 100644 (file)
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -529,10 +529,9 @@ anon_pipe_write(struct kiocb *iocb, struct iov_iter *from)
 
                        if (!iov_iter_count(from))
                                break;
-               }
 
-               if (!pipe_full(head, pipe->tail, pipe->max_usage))
                        continue;
+               }
 
                /* Wait for buffer space to become available. */
                if ((filp->f_flags & O_NONBLOCK) ||