[PATCH 26/27] afs: Fix an off-by-one error in afs_send_pages()

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afs_send_pages() should only put the call into the AFS_CALL_AWAIT_REPLY
state if it has sent all the pages - but the check it makes is incorrect
and sometimes it will finish the loop early.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

 fs/afs/rxrpc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 22d26b369070..b12da6aa5412 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -315,7 +315,7 @@ static int afs_send_pages(struct afs_call *call, struct msghdr *msg)
 		 * packet as RxRPC might give us the reply before it
 		 * returns from sending the request.
 		 */
-		if (first + nr >= last)
+		if (first + nr - 1 >= last)
 			call->state = AFS_CALL_AWAIT_REPLY;
 		ret = rxrpc_kernel_send_data(afs_socket, call->rxcall,
 					     msg, bytes);




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