@@ -291,6 +291,10 @@ struct smb_version_operations {
int (*sync_read)(const unsigned int, struct cifsFileInfo *,
struct cifs_io_parms *, unsigned int *, char **,
int *);
+ /* sync write to the server */
+ int (*sync_write)(const unsigned int, struct cifsFileInfo *,
+ struct cifs_io_parms *, unsigned int *, struct kvec *,
+ unsigned long);
};
struct smb_version_values {
@@ -369,8 +369,7 @@ extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, const char *buf,
const char __user *ubuf, const int long_op);
extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
- unsigned int *nbytes, struct kvec *iov, const int nvec,
- const int long_op);
+ unsigned int *nbytes, struct kvec *iov, const int nvec);
extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
const char *search_name, __u64 *inode_number,
const struct nls_table *nls_codepage,
@@ -2118,8 +2118,7 @@ async_writev_out:
int
CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
- unsigned int *nbytes, struct kvec *iov, int n_vec,
- const int long_op)
+ unsigned int *nbytes, struct kvec *iov, int n_vec)
{
int rc = -EACCES;
WRITE_REQ *pSMB = NULL;
@@ -2190,8 +2189,7 @@ CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
iov[0].iov_len = smb_hdr_len + 8;
- rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type,
- long_op);
+ rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, 0);
cifs_stats_inc(&tcon->stats.cifs_stats.num_writes);
if (rc) {
cFYI(1, "Send error Write2 = %d", rc);
@@ -1470,15 +1470,16 @@ cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
cifsi->server_eof = end_of_write;
}
-static ssize_t cifs_write(struct cifsFileInfo *open_file, __u32 pid,
- const char *write_data, size_t write_size,
- loff_t *poffset)
+static ssize_t
+cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
+ size_t write_size, loff_t *offset)
{
int rc = 0;
unsigned int bytes_written = 0;
unsigned int total_written;
struct cifs_sb_info *cifs_sb;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *tcon;
+ struct TCP_Server_Info *server;
unsigned int xid;
struct dentry *dentry = open_file->dentry;
struct cifsInodeInfo *cifsi = CIFS_I(dentry->d_inode);
@@ -1487,9 +1488,13 @@ static ssize_t cifs_write(struct cifsFileInfo *open_file, __u32 pid,
cifs_sb = CIFS_SB(dentry->d_sb);
cFYI(1, "write %zd bytes to offset %lld of %s", write_size,
- *poffset, dentry->d_name.name);
+ *offset, dentry->d_name.name);
+
+ tcon = tlink_tcon(open_file->tlink);
+ server = tcon->ses->server;
- pTcon = tlink_tcon(open_file->tlink);
+ if (!server->ops->sync_write)
+ return -ENOSYS;
xid = get_xid();
@@ -1515,13 +1520,12 @@ static ssize_t cifs_write(struct cifsFileInfo *open_file, __u32 pid,
/* iov[0] is reserved for smb header */
iov[1].iov_base = (char *)write_data + total_written;
iov[1].iov_len = len;
- io_parms.netfid = open_file->fid.netfid;
io_parms.pid = pid;
- io_parms.tcon = pTcon;
- io_parms.offset = *poffset;
+ io_parms.tcon = tcon;
+ io_parms.offset = *offset;
io_parms.length = len;
- rc = CIFSSMBWrite2(xid, &io_parms, &bytes_written, iov,
- 1, 0);
+ rc = server->ops->sync_write(xid, open_file, &io_parms,
+ &bytes_written, iov, 1);
}
if (rc || (bytes_written == 0)) {
if (total_written)
@@ -1532,18 +1536,18 @@ static ssize_t cifs_write(struct cifsFileInfo *open_file, __u32 pid,
}
} else {
spin_lock(&dentry->d_inode->i_lock);
- cifs_update_eof(cifsi, *poffset, bytes_written);
+ cifs_update_eof(cifsi, *offset, bytes_written);
spin_unlock(&dentry->d_inode->i_lock);
- *poffset += bytes_written;
+ *offset += bytes_written;
}
}
- cifs_stats_bytes_written(pTcon, total_written);
+ cifs_stats_bytes_written(tcon, total_written);
if (total_written > 0) {
spin_lock(&dentry->d_inode->i_lock);
- if (*poffset > dentry->d_inode->i_size)
- i_size_write(dentry->d_inode, *poffset);
+ if (*offset > dentry->d_inode->i_size)
+ i_size_write(dentry->d_inode, *offset);
spin_unlock(&dentry->d_inode->i_lock);
}
mark_inode_dirty_sync(dentry->d_inode);
@@ -748,6 +748,16 @@ cifs_sync_read(const unsigned int xid, struct cifsFileInfo *cfile,
return CIFSSMBRead(xid, parms, bytes_read, buf, buf_type);
}
+static int
+cifs_sync_write(const unsigned int xid, struct cifsFileInfo *cfile,
+ struct cifs_io_parms *parms, unsigned int *written,
+ struct kvec *iov, unsigned long nr_segs)
+{
+
+ parms->netfid = cfile->fid.netfid;
+ return CIFSSMBWrite2(xid, parms, written, iov, nr_segs);
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
@@ -797,6 +807,7 @@ struct smb_version_operations smb1_operations = {
.async_readv = cifs_async_readv,
.async_writev = cifs_async_writev,
.sync_read = cifs_sync_read,
+ .sync_write = cifs_sync_write,
};
struct smb_version_values smb1_values = {
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> --- fs/cifs/cifsglob.h | 4 ++++ fs/cifs/cifsproto.h | 3 +-- fs/cifs/cifssmb.c | 6 ++---- fs/cifs/file.c | 36 ++++++++++++++++++++---------------- fs/cifs/smb1ops.c | 11 +++++++++++ 5 files changed, 38 insertions(+), 22 deletions(-)