sunrpc: don't shorten buflen twice in xdr_shrink_pagelen
On Jan. 14, 2009, 2:50 +0200, andros@netapp.com wrote: > From: Andy Adamson <andros@netapp.com> > > The buflen is reset for all cases at the end of xdr_shrink_pagelen. > The data left in the tail after xdr_read_pages is not processed when the > buflen is incorrectly set. Note that in this case we also lose (len - tail->iov_len) bytes from the buffered data in pages. Reported-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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@ -407,8 +407,7 @@ xdr_shrink_pagelen(struct xdr_buf *buf, size_t len)
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if (tail->iov_len > len) {
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copy = tail->iov_len - len;
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memmove(p, tail->iov_base, copy);
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} else
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buf->buflen -= len;
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}
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/* Copy from the inlined pages into the tail */
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copy = len;
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if (copy > tail->iov_len)
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