From 88da0b03019ecadc3faaddf81a97c7ac83448280 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Tue, 3 Jan 2017 17:28:44 +0100 Subject: 9pfs: introduce init_out/in_iov_from_pdu Not all 9pfs transports share memory between request and response. For those who don't, it is necessary to know how much memory is required in the response. Split the existing init_iov_from_pdu function in two: init_out_iov_from_pdu (for writes) and init_in_iov_from_pdu (for reads). init_in_iov_from_pdu takes an additional size parameter to specify the memory required for the response message. Signed-off-by: Stefano Stabellini Reviewed-by: Greg Kurz Signed-off-by: Greg Kurz --- hw/9pfs/9p.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'hw/9pfs/9p.h') diff --git a/hw/9pfs/9p.h b/hw/9pfs/9p.h index c8c9aa8909..4c4feafa2e 100644 --- a/hw/9pfs/9p.h +++ b/hw/9pfs/9p.h @@ -349,8 +349,10 @@ struct V9fsTransport { va_list ap); ssize_t (*pdu_vunmarshal)(V9fsPDU *pdu, size_t offset, const char *fmt, va_list ap); - void (*init_iov_from_pdu)(V9fsPDU *pdu, struct iovec **piov, - unsigned int *pniov, bool is_write); + void (*init_in_iov_from_pdu)(V9fsPDU *pdu, struct iovec **piov, + unsigned int *pniov, size_t size); + void (*init_out_iov_from_pdu)(V9fsPDU *pdu, struct iovec **piov, + unsigned int *pniov); void (*push_and_notify)(V9fsPDU *pdu); }; -- cgit v1.2.3