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authorChristoph Hellwig <hch@lst.de>2015-02-11 19:59:44 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2015-03-13 12:10:22 -0400
commit599bd19bdc4c6b20fd91d50f2f79dececbaf80c1 (patch)
tree782dec7d04dd789c841e3798ee4c920c9493fe2c /net/socket.c
parent9d5722b7777e64de2d932f46cfee7765fdcc60d6 (diff)
downloadlinux-599bd19bdc4c6b20fd91d50f2f79dececbaf80c1.tar.bz2
fs: don't allow to complete sync iocbs through aio_complete
The AIO interface is fairly complex because it tries to allow filesystems to always work async and then wakeup a synchronous caller through aio_complete. It turns out that basically no one was doing this to avoid the complexity and context switches, and we've already fixed up the remaining users and can now get rid of this case. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/net/socket.c b/net/socket.c
index f92145554f34..f6c519d7b3ba 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -633,8 +633,7 @@ static int do_sock_sendmsg(struct socket *sock, struct msghdr *msg,
init_sync_kiocb(&iocb, NULL);
ret = nosec ? __sock_sendmsg_nosec(&iocb, sock, msg, size) :
__sock_sendmsg(&iocb, sock, msg, size);
- if (-EIOCBQUEUED == ret)
- ret = wait_on_sync_kiocb(&iocb);
+ BUG_ON(ret == -EIOCBQUEUED);
return ret;
}
@@ -766,8 +765,7 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg,
init_sync_kiocb(&iocb, NULL);
ret = __sock_recvmsg(&iocb, sock, msg, size, flags);
- if (-EIOCBQUEUED == ret)
- ret = wait_on_sync_kiocb(&iocb);
+ BUG_ON(ret == -EIOCBQUEUED);
return ret;
}
EXPORT_SYMBOL(sock_recvmsg);
@@ -780,8 +778,7 @@ static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
init_sync_kiocb(&iocb, NULL);
ret = __sock_recvmsg_nosec(&iocb, sock, msg, size, flags);
- if (-EIOCBQUEUED == ret)
- ret = wait_on_sync_kiocb(&iocb);
+ BUG_ON(ret == -EIOCBQUEUED);
return ret;
}