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netfs: Fix missing iterator reset on retry of short read

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Fix netfs_rreq_perform_resubmissions() to reset before retrying a short
read, otherwise the wrong part of the output buffer will be used.

Fixes: 92b6cc5d1e ("netfs: Add iov_iters to (sub)requests to describe various buffers")
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20240823200819.532106-6-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
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
David Howells 2024-08-23 21:08:13 +01:00 committed by Christian Brauner
parent cce6bfa6ca
commit 950b03d0f6
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1 changed files with 1 additions and 0 deletions
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fs/netfs/io.c
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@ -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);
}
}