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cifs: Use more fields from netfs_io_subrequest

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Use more fields from netfs_io_subrequest instead of those incorporated into
cifs_io_subrequest from cifs_readdata and cifs_writedata.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Rohith Surabattula <rohiths.msft@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
This commit is contained in:
David Howells 2023-10-06 16:55:20 +01:00
parent a975a2f22c
commit ab58fbdeeb
6 changed files with 113 additions and 116 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/smb/client/cifsglob.h
View File

@ -1515,9 +1515,6 @@ struct cifs_io_subrequest {
struct list_head list;
struct completion done;
struct work_struct work;
struct iov_iter iter;
__u64 offset;
unsigned int bytes;
};
/*

52
fs/smb/client/cifssmb.c
View File

@ -1269,12 +1269,12 @@ cifs_readv_callback(struct mid_q_entry *mid)
struct TCP_Server_Info *server = tcon->ses->server;
struct smb_rqst rqst = { .rq_iov = rdata->iov,
.rq_nvec = 2,
.rq_iter = rdata->iter };
.rq_iter = rdata->subreq.io_iter };
struct cifs_credits credits = { .value = 1, .instance = 0 };
cifs_dbg(FYI, "%s: mid=%llu state=%d result=%d bytes=%u\n",
cifs_dbg(FYI, "%s: mid=%llu state=%d result=%d bytes=%zu\n",
__func__, mid->mid, mid->mid_state, rdata->result,
rdata->bytes);
rdata->subreq.len);
switch (mid->mid_state) {
case MID_RESPONSE_RECEIVED:
@ -1322,14 +1322,14 @@ cifs_async_readv(struct cifs_io_subrequest *rdata)
struct smb_rqst rqst = { .rq_iov = rdata->iov,
.rq_nvec = 2 };
cifs_dbg(FYI, "%s: offset=%llu bytes=%u\n",
__func__, rdata->offset, rdata->bytes);
cifs_dbg(FYI, "%s: offset=%llu bytes=%zu\n",
__func__, rdata->subreq.start, rdata->subreq.len);
if (tcon->ses->capabilities & CAP_LARGE_FILES)
wct = 12;
else {
wct = 10; /* old style read */
if ((rdata->offset >> 32) > 0) {
if ((rdata->subreq.start >> 32) > 0) {
/* can not handle this big offset for old */
return -EIO;
}
@ -1344,12 +1344,12 @@ cifs_async_readv(struct cifs_io_subrequest *rdata)
smb->AndXCommand = 0xFF; /* none */
smb->Fid = rdata->cfile->fid.netfid;
smb->OffsetLow = cpu_to_le32(rdata->offset & 0xFFFFFFFF);
smb->OffsetLow = cpu_to_le32(rdata->subreq.start & 0xFFFFFFFF);
if (wct == 12)
smb->OffsetHigh = cpu_to_le32(rdata->offset >> 32);
smb->OffsetHigh = cpu_to_le32(rdata->subreq.start >> 32);
smb->Remaining = 0;
smb->MaxCount = cpu_to_le16(rdata->bytes & 0xFFFF);
smb->MaxCountHigh = cpu_to_le32(rdata->bytes >> 16);
smb->MaxCount = cpu_to_le16(rdata->subreq.len & 0xFFFF);
smb->MaxCountHigh = cpu_to_le32(rdata->subreq.len >> 16);
if (wct == 12)
smb->ByteCount = 0;
else {
@ -1633,13 +1633,13 @@ cifs_writev_callback(struct mid_q_entry *mid)
* client. OS/2 servers are known to set incorrect
* CountHigh values.
*/
if (written > wdata->bytes)
if (written > wdata->subreq.len)
written &= 0xFFFF;
if (written < wdata->bytes)
if (written < wdata->subreq.len)
wdata->result = -ENOSPC;
else
wdata->bytes = written;
wdata->subreq.len = written;
break;
case MID_REQUEST_SUBMITTED:
case MID_RETRY_NEEDED:
@ -1670,7 +1670,7 @@ cifs_async_writev(struct cifs_io_subrequest *wdata)
wct = 14;
} else {
wct = 12;
if (wdata->offset >> 32 > 0) {
if (wdata->subreq.start >> 32 > 0) {
/* can not handle big offset for old srv */
return -EIO;
}
@ -1685,9 +1685,9 @@ cifs_async_writev(struct cifs_io_subrequest *wdata)
smb->AndXCommand = 0xFF; /* none */
smb->Fid = wdata->cfile->fid.netfid;
smb->OffsetLow = cpu_to_le32(wdata->offset & 0xFFFFFFFF);
smb->OffsetLow = cpu_to_le32(wdata->subreq.start & 0xFFFFFFFF);
if (wct == 14)
smb->OffsetHigh = cpu_to_le32(wdata->offset >> 32);
smb->OffsetHigh = cpu_to_le32(wdata->subreq.start >> 32);
smb->Reserved = 0xFFFFFFFF;
smb->WriteMode = 0;
smb->Remaining = 0;
@ -1703,24 +1703,24 @@ cifs_async_writev(struct cifs_io_subrequest *wdata)
rqst.rq_iov = iov;
rqst.rq_nvec = 2;
rqst.rq_iter = wdata->iter;
rqst.rq_iter_size = iov_iter_count(&wdata->iter);
rqst.rq_iter = wdata->subreq.io_iter;
rqst.rq_iter_size = iov_iter_count(&wdata->subreq.io_iter);
cifs_dbg(FYI, "async write at %llu %u bytes\n",
wdata->offset, wdata->bytes);
cifs_dbg(FYI, "async write at %llu %zu bytes\n",
wdata->subreq.start, wdata->subreq.len);
smb->DataLengthLow = cpu_to_le16(wdata->bytes & 0xFFFF);
smb->DataLengthHigh = cpu_to_le16(wdata->bytes >> 16);
smb->DataLengthLow = cpu_to_le16(wdata->subreq.len & 0xFFFF);
smb->DataLengthHigh = cpu_to_le16(wdata->subreq.len >> 16);
if (wct == 14) {
inc_rfc1001_len(&smb->hdr, wdata->bytes + 1);
put_bcc(wdata->bytes + 1, &smb->hdr);
inc_rfc1001_len(&smb->hdr, wdata->subreq.len + 1);
put_bcc(wdata->subreq.len + 1, &smb->hdr);
} else {
/* wct == 12 */
struct smb_com_writex_req *smbw =
(struct smb_com_writex_req *)smb;
inc_rfc1001_len(&smbw->hdr, wdata->bytes + 5);
put_bcc(wdata->bytes + 5, &smbw->hdr);
inc_rfc1001_len(&smbw->hdr, wdata->subreq.len + 5);
put_bcc(wdata->subreq.len + 5, &smbw->hdr);
iov[1].iov_len += 4; /* pad bigger by four bytes */
}

112
fs/smb/client/file.c
View File

@ -2537,8 +2537,8 @@ cifs_writev_requeue(struct cifs_io_subrequest *wdata)
int rc = 0;
struct inode *inode = d_inode(wdata->cfile->dentry);
struct TCP_Server_Info *server;
unsigned int rest_len = wdata->bytes;
loff_t fpos = wdata->offset;
unsigned int rest_len = wdata->subreq.len;
loff_t fpos = wdata->subreq.start;
server = tlink_tcon(wdata->cfile->tlink)->ses->server;
do {
@ -2563,14 +2563,14 @@ cifs_writev_requeue(struct cifs_io_subrequest *wdata)
}
wdata2->sync_mode = wdata->sync_mode;
wdata2->offset = fpos;
wdata2->bytes = cur_len;
wdata2->iter = wdata->iter;
wdata2->subreq.start = fpos;
wdata2->subreq.len = cur_len;
wdata2->subreq.io_iter = wdata->subreq.io_iter;
iov_iter_advance(&wdata2->iter, fpos - wdata->offset);
iov_iter_truncate(&wdata2->iter, wdata2->bytes);
iov_iter_advance(&wdata2->subreq.io_iter, fpos - wdata->subreq.start);
iov_iter_truncate(&wdata2->subreq.io_iter, wdata2->subreq.len);
if (iov_iter_is_xarray(&wdata2->iter))
if (iov_iter_is_xarray(&wdata2->subreq.io_iter))
/* Check for pages having been redirtied and clean
* them. We can do this by walking the xarray. If
* it's not an xarray, then it's a DIO and we shouldn't
@ -2604,7 +2604,7 @@ cifs_writev_requeue(struct cifs_io_subrequest *wdata)
} while (rest_len > 0);
/* Clean up remaining pages from the original wdata */
if (iov_iter_is_xarray(&wdata->iter))
if (iov_iter_is_xarray(&wdata->subreq.io_iter))
cifs_pages_write_failed(inode, fpos, rest_len);
if (rc != 0 && !is_retryable_error(rc))
@ -2621,19 +2621,19 @@ cifs_writev_complete(struct work_struct *work)
if (wdata->result == 0) {
spin_lock(&inode->i_lock);
cifs_update_eof(CIFS_I(inode), wdata->offset, wdata->bytes);
cifs_update_eof(CIFS_I(inode), wdata->subreq.start, wdata->subreq.len);
spin_unlock(&inode->i_lock);
cifs_stats_bytes_written(tlink_tcon(wdata->cfile->tlink),
wdata->bytes);
wdata->subreq.len);
} else if (wdata->sync_mode == WB_SYNC_ALL && wdata->result == -EAGAIN)
return cifs_writev_requeue(wdata);
if (wdata->result == -EAGAIN)
cifs_pages_write_redirty(inode, wdata->offset, wdata->bytes);
cifs_pages_write_redirty(inode, wdata->subreq.start, wdata->subreq.len);
else if (wdata->result < 0)
cifs_pages_write_failed(inode, wdata->offset, wdata->bytes);
cifs_pages_write_failed(inode, wdata->subreq.start, wdata->subreq.len);
else
cifs_pages_written_back(inode, wdata->offset, wdata->bytes);
cifs_pages_written_back(inode, wdata->subreq.start, wdata->subreq.len);
if (wdata->result != -EAGAIN)
mapping_set_error(inode->i_mapping, wdata->result);
@ -2816,7 +2816,7 @@ static ssize_t cifs_write_back_from_locked_folio(struct address_space *mapping,
}
wdata->sync_mode = wbc->sync_mode;
wdata->offset = folio_pos(folio);
wdata->subreq.start = folio_pos(folio);
wdata->pid = cfile->pid;
wdata->credits = credits_on_stack;
wdata->cfile = cfile;
@ -2857,13 +2857,13 @@ static ssize_t cifs_write_back_from_locked_folio(struct address_space *mapping,
* have been unlocked.
*/
folio_unlock(folio);
wdata->bytes = len;
wdata->subreq.len = len;
if (start < i_size) {
iov_iter_xarray(&wdata->iter, ITER_SOURCE, &mapping->i_pages,
iov_iter_xarray(&wdata->subreq.io_iter, ITER_SOURCE, &mapping->i_pages,
start, len);
rc = adjust_credits(wdata->server, &wdata->credits, wdata->bytes);
rc = adjust_credits(wdata->server, &wdata->credits, wdata->subreq.len);
if (rc)
goto err_wdata;
@ -3270,7 +3270,7 @@ cifs_uncached_writev_complete(struct work_struct *work)
struct cifsInodeInfo *cifsi = CIFS_I(inode);
spin_lock(&inode->i_lock);
cifs_update_eof(cifsi, wdata->offset, wdata->bytes);
cifs_update_eof(cifsi, wdata->subreq.start, wdata->subreq.len);
if (cifsi->netfs.remote_i_size > inode->i_size)
i_size_write(inode, cifsi->netfs.remote_i_size);
spin_unlock(&inode->i_lock);
@ -3306,19 +3306,19 @@ cifs_resend_wdata(struct cifs_io_subrequest *wdata, struct list_head *wdata_list
* segments
*/
do {
rc = server->ops->wait_mtu_credits(server, wdata->bytes,
rc = server->ops->wait_mtu_credits(server, wdata->subreq.len,
&wsize, &credits);
if (rc)
goto fail;
if (wsize < wdata->bytes) {
if (wsize < wdata->subreq.len) {
add_credits_and_wake_if(server, &credits, 0);
msleep(1000);
}
} while (wsize < wdata->bytes);
} while (wsize < wdata->subreq.len);
wdata->credits = credits;
rc = adjust_credits(server, &wdata->credits, wdata->bytes);
rc = adjust_credits(server, &wdata->credits, wdata->subreq.len);
if (!rc) {
if (wdata->cfile->invalidHandle)
@ -3465,19 +3465,19 @@ cifs_write_from_iter(loff_t fpos, size_t len, struct iov_iter *from,
wdata->uncached = true;
wdata->sync_mode = WB_SYNC_ALL;
wdata->offset = (__u64)fpos;
wdata->subreq.start = (__u64)fpos;
wdata->cfile = cifsFileInfo_get(open_file);
wdata->server = server;
wdata->pid = pid;
wdata->bytes = cur_len;
wdata->subreq.len = cur_len;
wdata->credits = credits_on_stack;
wdata->iter = *from;
wdata->subreq.io_iter = *from;
wdata->ctx = ctx;
kref_get(&ctx->refcount);
iov_iter_truncate(&wdata->iter, cur_len);
iov_iter_truncate(&wdata->subreq.io_iter, cur_len);
rc = adjust_credits(server, &wdata->credits, wdata->bytes);
rc = adjust_credits(server, &wdata->credits, wdata->subreq.len);
if (!rc) {
if (wdata->cfile->invalidHandle)
@ -3539,7 +3539,7 @@ restart_loop:
if (wdata->result)
rc = wdata->result;
else
ctx->total_len += wdata->bytes;
ctx->total_len += wdata->subreq.len;
/* resend call if it's a retryable error */
if (rc == -EAGAIN) {
@ -3554,10 +3554,10 @@ restart_loop:
wdata, &tmp_list, ctx);
else {
iov_iter_advance(&tmp_from,
wdata->offset - ctx->pos);
wdata->subreq.start - ctx->pos);
rc = cifs_write_from_iter(wdata->offset,
wdata->bytes, &tmp_from,
rc = cifs_write_from_iter(wdata->subreq.start,
wdata->subreq.len, &tmp_from,
ctx->cfile, cifs_sb, &tmp_list,
ctx);
@ -3880,20 +3880,20 @@ static int cifs_resend_rdata(struct cifs_io_subrequest *rdata,
* segments
*/
do {
rc = server->ops->wait_mtu_credits(server, rdata->bytes,
rc = server->ops->wait_mtu_credits(server, rdata->subreq.len,
&rsize, &credits);
if (rc)
goto fail;
if (rsize < rdata->bytes) {
if (rsize < rdata->subreq.len) {
add_credits_and_wake_if(server, &credits, 0);
msleep(1000);
}
} while (rsize < rdata->bytes);
} while (rsize < rdata->subreq.len);
rdata->credits = credits;
rc = adjust_credits(server, &rdata->credits, rdata->bytes);
rc = adjust_credits(server, &rdata->credits, rdata->subreq.len);
if (!rc) {
if (rdata->cfile->invalidHandle)
rc = -EAGAIN;
@ -3991,17 +3991,17 @@ cifs_send_async_read(loff_t fpos, size_t len, struct cifsFileInfo *open_file,
rdata->server = server;
rdata->cfile = cifsFileInfo_get(open_file);
rdata->offset = fpos;
rdata->bytes = cur_len;
rdata->subreq.start = fpos;
rdata->subreq.len = cur_len;
rdata->pid = pid;
rdata->credits = credits_on_stack;
rdata->ctx = ctx;
kref_get(&ctx->refcount);
rdata->iter = ctx->iter;
iov_iter_truncate(&rdata->iter, cur_len);
rdata->subreq.io_iter = ctx->iter;
iov_iter_truncate(&rdata->subreq.io_iter, cur_len);
rc = adjust_credits(server, &rdata->credits, rdata->bytes);
rc = adjust_credits(server, &rdata->credits, rdata->subreq.len);
if (!rc) {
if (rdata->cfile->invalidHandle)
@ -4071,8 +4071,8 @@ again:
&tmp_list, ctx);
} else {
rc = cifs_send_async_read(
rdata->offset + got_bytes,
rdata->bytes - got_bytes,
rdata->subreq.start + got_bytes,
rdata->subreq.len - got_bytes,
rdata->cfile, cifs_sb,
&tmp_list, ctx);
@ -4086,7 +4086,7 @@ again:
rc = rdata->result;
/* if there was a short read -- discard anything left */
if (rdata->got_bytes && rdata->got_bytes < rdata->bytes)
if (rdata->got_bytes && rdata->got_bytes < rdata->subreq.len)
rc = -ENODATA;
ctx->total_len += rdata->got_bytes;
@ -4470,16 +4470,16 @@ static void cifs_readahead_complete(struct work_struct *work)
pgoff_t last;
bool good = rdata->result == 0 || (rdata->result == -EAGAIN && rdata->got_bytes);
XA_STATE(xas, &rdata->mapping->i_pages, rdata->offset / PAGE_SIZE);
XA_STATE(xas, &rdata->mapping->i_pages, rdata->subreq.start / PAGE_SIZE);
if (good)
cifs_readahead_to_fscache(rdata->mapping->host,
rdata->offset, rdata->bytes);
rdata->subreq.start, rdata->subreq.len);
if (iov_iter_count(&rdata->iter) > 0)
iov_iter_zero(iov_iter_count(&rdata->iter), &rdata->iter);
if (iov_iter_count(&rdata->subreq.io_iter) > 0)
iov_iter_zero(iov_iter_count(&rdata->subreq.io_iter), &rdata->subreq.io_iter);
last = (rdata->offset + rdata->bytes - 1) / PAGE_SIZE;
last = (rdata->subreq.start + rdata->subreq.len - 1) / PAGE_SIZE;
rcu_read_lock();
xas_for_each(&xas, folio, last) {
@ -4618,8 +4618,8 @@ static void cifs_readahead(struct readahead_control *ractl)
break;
}
rdata->offset = ra_index * PAGE_SIZE;
rdata->bytes = nr_pages * PAGE_SIZE;
rdata->subreq.start = ra_index * PAGE_SIZE;
rdata->subreq.len = nr_pages * PAGE_SIZE;
rdata->cfile = cifsFileInfo_get(open_file);
rdata->server = server;
rdata->mapping = ractl->mapping;
@ -4633,10 +4633,10 @@ static void cifs_readahead(struct readahead_control *ractl)
ra_pages -= nr_pages;
ra_index += nr_pages;
iov_iter_xarray(&rdata->iter, ITER_DEST, &rdata->mapping->i_pages,
rdata->offset, rdata->bytes);
iov_iter_xarray(&rdata->subreq.io_iter, ITER_DEST, &rdata->mapping->i_pages,
rdata->subreq.start, rdata->subreq.len);
rc = adjust_credits(server, &rdata->credits, rdata->bytes);
rc = adjust_credits(server, &rdata->credits, rdata->subreq.len);
if (!rc) {
if (rdata->cfile->invalidHandle)
rc = -EAGAIN;
@ -4647,8 +4647,8 @@ static void cifs_readahead(struct readahead_control *ractl)
if (rc) {
add_credits_and_wake_if(server, &rdata->credits, 0);
cifs_unlock_folios(rdata->mapping,
rdata->offset / PAGE_SIZE,
(rdata->offset + rdata->bytes - 1) / PAGE_SIZE);
rdata->subreq.start / PAGE_SIZE,
(rdata->subreq.start + rdata->subreq.len - 1) / PAGE_SIZE);
/* Fallback to the readpage in error/reconnect cases */
cifs_put_readdata(rdata);
break;

4
fs/smb/client/smb2ops.c
View File

@ -4592,7 +4592,7 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid,
/* Copy the data to the output I/O iterator. */
rdata->result = cifs_copy_pages_to_iter(pages, pages_len,
cur_off, &rdata->iter);
cur_off, &rdata->subreq.io_iter);
if (rdata->result != 0) {
if (is_offloaded)
mid->mid_state = MID_RESPONSE_MALFORMED;
@ -4606,7 +4606,7 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid,
/* read response payload is in buf */
WARN_ONCE(pages && !xa_empty(pages),
"read data can be either in buf or in pages");
length = copy_to_iter(buf + data_offset, data_len, &rdata->iter);
length = copy_to_iter(buf + data_offset, data_len, &rdata->subreq.io_iter);
if (length < 0)
return length;
rdata->got_bytes = data_len;

52
fs/smb/client/smb2pdu.c
View File

@ -4434,7 +4434,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
struct smbd_buffer_descriptor_v1 *v1;
bool need_invalidate = server->dialect == SMB30_PROT_ID;
rdata->mr = smbd_register_mr(server->smbd_conn, &rdata->iter,
rdata->mr = smbd_register_mr(server->smbd_conn, &rdata->subreq.io_iter,
true, need_invalidate);
if (!rdata->mr)
return -EAGAIN;
@ -4494,17 +4494,17 @@ smb2_readv_callback(struct mid_q_entry *mid)
struct smb_rqst rqst = { .rq_iov = &rdata->iov[1], .rq_nvec = 1 };
if (rdata->got_bytes) {
rqst.rq_iter = rdata->iter;
rqst.rq_iter_size = iov_iter_count(&rdata->iter);
rqst.rq_iter = rdata->subreq.io_iter;
rqst.rq_iter_size = iov_iter_count(&rdata->subreq.io_iter);
}
WARN_ONCE(rdata->server != mid->server,
"rdata server %p != mid server %p",
rdata->server, mid->server);
cifs_dbg(FYI, "%s: mid=%llu state=%d result=%d bytes=%u\n",
cifs_dbg(FYI, "%s: mid=%llu state=%d result=%d bytes=%zu\n",
__func__, mid->mid, mid->mid_state, rdata->result,
rdata->bytes);
rdata->subreq.len);
switch (mid->mid_state) {
case MID_RESPONSE_RECEIVED:
@ -4557,13 +4557,13 @@ smb2_readv_callback(struct mid_q_entry *mid)
cifs_stats_fail_inc(tcon, SMB2_READ_HE);
trace_smb3_read_err(0 /* xid */,
rdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid, rdata->offset,
rdata->bytes, rdata->result);
tcon->tid, tcon->ses->Suid, rdata->subreq.start,
rdata->subreq.len, rdata->result);
} else
trace_smb3_read_done(0 /* xid */,
rdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid,
rdata->offset, rdata->got_bytes);
rdata->subreq.start, rdata->got_bytes);
queue_work(cifsiod_wq, &rdata->work);
release_mid(mid);
@ -4585,16 +4585,16 @@ smb2_async_readv(struct cifs_io_subrequest *rdata)
unsigned int total_len;
int credit_request;
cifs_dbg(FYI, "%s: offset=%llu bytes=%u\n",
__func__, rdata->offset, rdata->bytes);
cifs_dbg(FYI, "%s: offset=%llu bytes=%zu\n",
__func__, rdata->subreq.start, rdata->subreq.len);
if (!rdata->server)
rdata->server = cifs_pick_channel(tcon->ses);
io_parms.tcon = tlink_tcon(rdata->cfile->tlink);
io_parms.server = server = rdata->server;
io_parms.offset = rdata->offset;
io_parms.length = rdata->bytes;
io_parms.offset = rdata->subreq.start;
io_parms.length = rdata->subreq.len;
io_parms.persistent_fid = rdata->cfile->fid.persistent_fid;
io_parms.volatile_fid = rdata->cfile->fid.volatile_fid;
io_parms.pid = rdata->pid;
@ -4613,7 +4613,7 @@ smb2_async_readv(struct cifs_io_subrequest *rdata)
shdr = (struct smb2_hdr *)buf;
if (rdata->credits.value > 0) {
shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(rdata->bytes,
shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(rdata->subreq.len,
SMB2_MAX_BUFFER_SIZE));
credit_request = le16_to_cpu(shdr->CreditCharge) + 8;
if (server->credits >= server->max_credits)
@ -4623,7 +4623,7 @@ smb2_async_readv(struct cifs_io_subrequest *rdata)
min_t(int, server->max_credits -
server->credits, credit_request));
rc = adjust_credits(server, &rdata->credits, rdata->bytes);
rc = adjust_credits(server, &rdata->credits, rdata->subreq.len);
if (rc)
goto async_readv_out;
@ -4763,13 +4763,13 @@ smb2_writev_callback(struct mid_q_entry *mid)
* client. OS/2 servers are known to set incorrect
* CountHigh values.
*/
if (written > wdata->bytes)
if (written > wdata->subreq.len)
written &= 0xFFFF;
if (written < wdata->bytes)
if (written < wdata->subreq.len)
wdata->result = -ENOSPC;
else
wdata->bytes = written;
wdata->subreq.len = written;
break;
case MID_REQUEST_SUBMITTED:
case MID_RETRY_NEEDED:
@ -4800,8 +4800,8 @@ smb2_writev_callback(struct mid_q_entry *mid)
cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
trace_smb3_write_err(0 /* no xid */,
wdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid, wdata->offset,
wdata->bytes, wdata->result);
tcon->tid, tcon->ses->Suid, wdata->subreq.start,
wdata->subreq.len, wdata->result);
if (wdata->result == -ENOSPC)
pr_warn_once("Out of space writing to %s\n",
tcon->tree_name);
@ -4809,7 +4809,7 @@ smb2_writev_callback(struct mid_q_entry *mid)
trace_smb3_write_done(0 /* no xid */,
wdata->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid,
wdata->offset, wdata->bytes);
wdata->subreq.start, wdata->subreq.len);
queue_work(cifsiod_wq, &wdata->work);
release_mid(mid);
@ -4842,8 +4842,8 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
_io_parms = (struct cifs_io_parms) {
.tcon = tcon,
.server = server,
.offset = wdata->offset,
.length = wdata->bytes,
.offset = wdata->subreq.start,
.length = wdata->subreq.len,
.persistent_fid = wdata->cfile->fid.persistent_fid,
.volatile_fid = wdata->cfile->fid.volatile_fid,
.pid = wdata->pid,
@ -4885,10 +4885,10 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
*/
if (smb3_use_rdma_offload(io_parms)) {
struct smbd_buffer_descriptor_v1 *v1;
size_t data_size = iov_iter_count(&wdata->iter);
size_t data_size = iov_iter_count(&wdata->subreq.io_iter);
bool need_invalidate = server->dialect == SMB30_PROT_ID;
wdata->mr = smbd_register_mr(server->smbd_conn, &wdata->iter,
wdata->mr = smbd_register_mr(server->smbd_conn, &wdata->subreq.io_iter,
false, need_invalidate);
if (!wdata->mr) {
rc = -EAGAIN;
@ -4915,7 +4915,7 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
rqst.rq_iov = iov;
rqst.rq_nvec = 1;
rqst.rq_iter = wdata->iter;
rqst.rq_iter = wdata->subreq.io_iter;
rqst.rq_iter_size = iov_iter_count(&rqst.rq_iter);
if (wdata->replay)
smb2_set_replay(server, &rqst);
@ -4935,7 +4935,7 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
#endif
if (wdata->credits.value > 0) {
shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(wdata->bytes,
shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(wdata->subreq.len,
SMB2_MAX_BUFFER_SIZE));
credit_request = le16_to_cpu(shdr->CreditCharge) + 8;
if (server->credits >= server->max_credits)

6
fs/smb/client/transport.c
View File

@ -1707,8 +1707,8 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
unsigned int buflen = server->pdu_size + HEADER_PREAMBLE_SIZE(server);
bool use_rdma_mr = false;
cifs_dbg(FYI, "%s: mid=%llu offset=%llu bytes=%u\n",
__func__, mid->mid, rdata->offset, rdata->bytes);
cifs_dbg(FYI, "%s: mid=%llu offset=%llu bytes=%zu\n",
__func__, mid->mid, rdata->subreq.start, rdata->subreq.len);
/*
* read the rest of READ_RSP header (sans Data array), or whatever we
@ -1813,7 +1813,7 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
length = data_len; /* An RDMA read is already done. */
else
#endif
length = cifs_read_iter_from_socket(server, &rdata->iter,
length = cifs_read_iter_from_socket(server, &rdata->subreq.io_iter,
data_len);
if (length > 0)
rdata->got_bytes += length;