From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Layton Subject: [PATCH 2/7] cifs: make cifs_send_async take a kvec array Date: Wed, 13 Apr 2011 07:43:09 -0400 Message-ID: <1302694994-8303-3-git-send-email-jlayton@redhat.com> References: <1302694994-8303-1-git-send-email-jlayton@redhat.com> To: linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Return-path: In-Reply-To: <1302694994-8303-1-git-send-email-jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> Sender: linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: We'll need this for async writes, so convert the call to take a kvec array. CIFSSMBEcho is changed to put a kvec on the stack and pass in the SMB buffer using that. Reviewed-by: Pavel Shilovsky Signed-off-by: Jeff Layton --- fs/cifs/cifsproto.h | 4 ++-- fs/cifs/cifssmb.c | 6 ++++-- fs/cifs/transport.c | 13 +++++++------ 3 files changed, 13 insertions(+), 10 deletions(-) diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 4af7db8..e255a2b 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -65,8 +65,8 @@ extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer, struct TCP_Server_Info *server); extern void DeleteMidQEntry(struct mid_q_entry *midEntry); extern int wait_for_free_request(struct TCP_Server_Info *sv, const int long_op); -extern int cifs_call_async(struct TCP_Server_Info *server, - struct smb_hdr *in_buf, mid_callback_t *callback, +extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov, + unsigned int nvec, mid_callback_t *callback, void *cbdata); extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *, struct smb_hdr * /* input */ , diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index ca58aea..79e4881 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -725,6 +725,7 @@ CIFSSMBEcho(struct TCP_Server_Info *server) { ECHO_REQ *smb; int rc = 0; + struct kvec iov; cFYI(1, "In echo request"); @@ -739,9 +740,10 @@ CIFSSMBEcho(struct TCP_Server_Info *server) put_bcc(1, &smb->hdr); smb->Data[0] = 'a'; inc_rfc1001_len(smb, 3); + iov.iov_base = smb; + iov.iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4; - rc = cifs_call_async(server, (struct smb_hdr *)smb, - cifs_echo_callback, server); + rc = cifs_call_async(server, &iov, 1, cifs_echo_callback, server); if (rc) cFYI(1, "Echo request failed: %d", rc); diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index d9833fc..7ccf292 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -349,11 +349,12 @@ wait_for_response(struct TCP_Server_Info *server, struct mid_q_entry *midQ) * the result. Caller is responsible for dealing with timeouts. */ int -cifs_call_async(struct TCP_Server_Info *server, struct smb_hdr *in_buf, - mid_callback_t *callback, void *cbdata) +cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov, + unsigned int nvec, mid_callback_t *callback, void *cbdata) { int rc; struct mid_q_entry *mid; + struct smb_hdr *hdr = (struct smb_hdr *)iov[0].iov_base; rc = wait_for_free_request(server, CIFS_ASYNC_OP); if (rc) @@ -361,10 +362,10 @@ cifs_call_async(struct TCP_Server_Info *server, struct smb_hdr *in_buf, /* enable signing if server requires it */ if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) - in_buf->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; + hdr->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; mutex_lock(&server->srv_mutex); - mid = AllocMidQEntry(in_buf, server); + mid = AllocMidQEntry(hdr, server); if (mid == NULL) { mutex_unlock(&server->srv_mutex); return -ENOMEM; @@ -375,7 +376,7 @@ cifs_call_async(struct TCP_Server_Info *server, struct smb_hdr *in_buf, list_add_tail(&mid->qhead, &server->pending_mid_q); spin_unlock(&GlobalMid_Lock); - rc = cifs_sign_smb(in_buf, server, &mid->sequence_number); + rc = cifs_sign_smb2(iov, nvec, server, &mid->sequence_number); if (rc) { mutex_unlock(&server->srv_mutex); goto out_err; @@ -385,7 +386,7 @@ cifs_call_async(struct TCP_Server_Info *server, struct smb_hdr *in_buf, mid->callback_data = cbdata; mid->midState = MID_REQUEST_SUBMITTED; cifs_in_send_inc(server); - rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length)); + rc = smb_sendv(server, iov, nvec); cifs_in_send_dec(server); cifs_save_when_sent(mid); mutex_unlock(&server->srv_mutex); -- 1.7.4.2