diff mbox series

[5/9] netfs: Fix missing iterator reset on retry of short read

Message ID 20240823200819.532106-6-dhowells@redhat.com
State New
Headers show
Series netfs, cifs: Combined repost of fixes for truncation, DIO read and read-retry | expand

Commit Message

David Howells Aug. 23, 2024, 8:08 p.m. UTC 
Fix netfs_rreq_perform_resubmissions() to reset before retrying a short
read, otherwise the wrong part of the output buffer will be used.

Fixes: 92b6cc5d1e7c ("netfs: Add iov_iters to (sub)requests to describe various buffers")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
---
 fs/netfs/io.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/fs/netfs/io.c b/fs/netfs/io.c
index 5367caf3fa28..4da0a494e860 100644
--- a/fs/netfs/io.c
+++ b/fs/netfs/io.c
@@ -313,6 +313,7 @@  static bool netfs_rreq_perform_resubmissions(struct netfs_io_request *rreq)
 			netfs_reset_subreq_iter(rreq, subreq);
 			netfs_read_from_server(rreq, subreq);
 		} else if (test_bit(NETFS_SREQ_SHORT_IO, &subreq->flags)) {
+			netfs_reset_subreq_iter(rreq, subreq);
 			netfs_rreq_short_read(rreq, subreq);
 		}
 	}