linux-kernel - [PATCH v6 01/13] iov_iter: Remove last_offset from iov_iter as it was for ITER

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Message-ID: <20230922120227.1173720-2-dhowells@redhat.com>
Date:   Fri, 22 Sep 2023 13:02:15 +0100
From:   David Howells <dhowells@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     David Howells <dhowells@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Christoph Hellwig <hch@....de>,
        Christian Brauner <christian@...uner.io>,
        David Laight <David.Laight@...LAB.COM>,
        Matthew Wilcox <willy@...radead.org>,
        Jeff Layton <jlayton@...nel.org>,
        linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-mm@...ck.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v6 01/13] iov_iter: Remove last_offset from iov_iter as it was for ITER_PIPE

Now that ITER_PIPE has been removed, iov_iter::last_offset is no longer
used, so remove it.

Signed-off-by: David Howells <dhowells@...hat.com>
cc: Alexander Viro <viro@...iv.linux.org.uk>
cc: Jens Axboe <axboe@...nel.dk>
cc: Christoph Hellwig <hch@....de>
cc: Christian Brauner <christian@...uner.io>
cc: Matthew Wilcox <willy@...radead.org>
cc: Linus Torvalds <torvalds@...ux-foundation.org>
cc: David Laight <David.Laight@...LAB.COM>
cc: linux-block@...r.kernel.org
cc: linux-fsdevel@...r.kernel.org
cc: linux-mm@...ck.org
---
 include/linux/uio.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/include/linux/uio.h b/include/linux/uio.h
index 42bce38a8e87..2000e42a6586 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -44,10 +44,7 @@ struct iov_iter {
 	bool nofault;
 	bool data_source;
 	bool user_backed;
-	union {
-		size_t iov_offset;
-		int last_offset;
-	};
+	size_t iov_offset;
 	/*
 	 * Hack alert: overlay ubuf_iovec with iovec + count, so
 	 * that the members resolve correctly regardless of the type