cifs: change cifs_call_async to use smb_rqst structs
For now, none of the callers populate rq_pages. That will be done for
writes in a later patch. While we're at it, change the prototype of
setup_async_request not to need a return pointer argument. Just
return the pointer to the mid_q_entry or an ERR_PTR.
Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 6786b5e..2f86c84 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -725,6 +725,8 @@
ECHO_REQ *smb;
int rc = 0;
struct kvec iov;
+ struct smb_rqst rqst = { .rq_iov = &iov,
+ .rq_nvec = 1 };
cFYI(1, "In echo request");
@@ -742,7 +744,7 @@
iov.iov_base = smb;
iov.iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4;
- rc = cifs_call_async(server, &iov, 1, NULL, cifs_echo_callback,
+ rc = cifs_call_async(server, &rqst, NULL, cifs_echo_callback,
server, CIFS_ASYNC_OP | CIFS_ECHO_OP);
if (rc)
cFYI(1, "Echo request failed: %d", rc);
@@ -1585,6 +1587,8 @@
READ_REQ *smb = NULL;
int wct;
struct cifs_tcon *tcon = tlink_tcon(rdata->cfile->tlink);
+ struct smb_rqst rqst = { .rq_iov = rdata->iov,
+ .rq_nvec = 1 };
cFYI(1, "%s: offset=%llu bytes=%u", __func__,
rdata->offset, rdata->bytes);
@@ -1628,9 +1632,8 @@
rdata->iov[0].iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4;
kref_get(&rdata->refcount);
- rc = cifs_call_async(tcon->ses->server, rdata->iov, 1,
- cifs_readv_receive, cifs_readv_callback,
- rdata, 0);
+ rc = cifs_call_async(tcon->ses->server, &rqst, cifs_readv_receive,
+ cifs_readv_callback, rdata, 0);
if (rc == 0)
cifs_stats_inc(&tcon->stats.cifs_stats.num_reads);
@@ -2035,6 +2038,7 @@
int wct;
struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink);
struct kvec *iov = NULL;
+ struct smb_rqst rqst = { };
if (tcon->ses->capabilities & CAP_LARGE_FILES) {
wct = 14;
@@ -2051,11 +2055,13 @@
goto async_writev_out;
/* 1 iov per page + 1 for header */
- iov = kzalloc((wdata->nr_pages + 1) * sizeof(*iov), GFP_NOFS);
+ rqst.rq_nvec = wdata->nr_pages + 1;
+ iov = kzalloc((rqst.rq_nvec) * sizeof(*iov), GFP_NOFS);
if (iov == NULL) {
rc = -ENOMEM;
goto async_writev_out;
}
+ rqst.rq_iov = iov;
smb->hdr.Pid = cpu_to_le16((__u16)wdata->pid);
smb->hdr.PidHigh = cpu_to_le16((__u16)(wdata->pid >> 16));
@@ -2104,8 +2110,8 @@
}
kref_get(&wdata->refcount);
- rc = cifs_call_async(tcon->ses->server, iov, wdata->nr_pages + 1,
- NULL, cifs_writev_callback, wdata, 0);
+ rc = cifs_call_async(tcon->ses->server, &rqst, NULL,
+ cifs_writev_callback, wdata, 0);
if (rc == 0)
cifs_stats_inc(&tcon->stats.cifs_stats.num_writes);