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From: David Howells <dhowells@redhat.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Jeffrey Altman <jaltman@auristor.com>,
	linux-afs@lists.infradead.org, dhowells@redhat.com,
	Jeff Layton <jlayton@kernel.org>,
	Ilya Dryomov <idryomov@gmail.com>,
	linux-fsdevel@vger.kernel.org, linux-cachefs@redhat.com,
	linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org,
	linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org,
	v9fs-developer@lists.sourceforge.net, devel@lists.orangefs.org,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/6] afs: Fix afs_launder_page() to set correct start file position
Date: Tue, 24 Aug 2021 14:24:47 +0100	[thread overview]
Message-ID: <162981148752.1901565.3663780601682206026.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <162981147473.1901565.1455657509200944265.stgit@warthog.procyon.org.uk>

Fix afs_launder_page() to set the starting position of the StoreData RPC at
the offset into the page at which the modified data starts instead of at
the beginning of the page (the iov_iter is correctly offset).

The offset got lost during the conversion to passing an iov_iter into
afs_store_data().

Fixes: bd80d8a80e12 ("afs: Use ITER_XARRAY for writing")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/162880783179.3421678.7795105718190440134.stgit@warthog.procyon.org.uk/
---

 fs/afs/write.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/afs/write.c b/fs/afs/write.c
index fb7d5c1cabde..fff4c7d88e0d 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -950,8 +950,8 @@ int afs_launder_page(struct page *page)
 		iov_iter_bvec(&iter, WRITE, bv, 1, bv[0].bv_len);
 
 		trace_afs_page_dirty(vnode, tracepoint_string("launder"), page);
-		ret = afs_store_data(vnode, &iter, (loff_t)page->index * PAGE_SIZE,
-				     true);
+		ret = afs_store_data(vnode, &iter,
+				     (loff_t)page->index * PAGE_SIZE + f, true);
 	}
 
 	trace_afs_page_dirty(vnode, tracepoint_string("laundered"), page);



  reply	other threads:[~2021-08-24 13:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-24 13:24 [PATCH 0/6] netfs, afs, ceph: Support folios, at least partially David Howells
2021-08-24 13:24 ` David Howells [this message]
2021-08-24 14:18   ` [PATCH 1/6] afs: Fix afs_launder_page() to set correct start file position Christoph Hellwig
2021-08-24 14:18   ` Matthew Wilcox
2021-08-24 14:38   ` David Howells
2021-08-24 13:24 ` [PATCH 2/6] folio: Add a function to change the private data attached to a folio David Howells
2021-08-24 13:25 ` [PATCH 3/6] folio: Add a function to get the host inode for " David Howells
2021-08-24 14:03   ` Matthew Wilcox
2021-08-24 14:11   ` David Howells
2021-08-24 13:25 ` [PATCH 4/6] afs: Sort out symlink reading David Howells
2021-08-24 13:25 ` [PATCH 5/6] netfs, afs, ceph: Use folios David Howells
2021-08-24 13:25 ` [PATCH 6/6] afs: Use folios in directory handling David Howells

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