Signed-off-by: Pavel Shilovsky <[email protected]>
---
fs/cifs/cifsglob.h | 3 +++
fs/cifs/cifssmb.c | 4 +++-
fs/cifs/file.c | 13 +++++++++++--
fs/cifs/smb1ops.c | 1 +
4 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 9ce1353..61a013e 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -173,6 +173,7 @@ struct cifs_fattr;
struct smb_vol;
struct cifs_fid;
struct cifs_readdata;
+struct cifs_writedata;
struct smb_version_operations {
int (*send_cancel)(struct TCP_Server_Info *, void *,
@@ -283,6 +284,8 @@ struct smb_version_operations {
int (*flush)(const unsigned int, struct cifs_tcon *, struct cifs_fid *);
/* async read from the server */
int (*async_readv)(struct cifs_readdata *);
+ /* async write to the server */
+ int (*async_writev)(struct cifs_writedata *);
};
struct smb_version_values {
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index e37801c..715781a 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1921,6 +1921,7 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
{
int i, rc;
struct inode *inode = wdata->cfile->dentry->d_inode;
+ struct TCP_Server_Info *server;
for (i = 0; i < wdata->nr_pages; i++) {
lock_page(wdata->pages[i]);
@@ -1928,7 +1929,8 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
}
do {
- rc = cifs_async_writev(wdata);
+ server = tlink_tcon(wdata->cfile->tlink)->ses->server;
+ rc = server->ops->async_writev(wdata);
} while (rc == -EAGAIN);
for (i = 0; i < wdata->nr_pages; i++) {
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 81403ad..fd2c8bb 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1747,6 +1747,7 @@ static int cifs_writepages(struct address_space *mapping,
bool done = false, scanned = false, range_whole = false;
pgoff_t end, index;
struct cifs_writedata *wdata;
+ struct TCP_Server_Info *server;
struct page *page;
int rc = 0;
@@ -1897,7 +1898,8 @@ retry:
break;
}
wdata->pid = wdata->cfile->pid;
- rc = cifs_async_writev(wdata);
+ server = tlink_tcon(wdata->cfile->tlink)->ses->server;
+ rc = server->ops->async_writev(wdata);
} while (wbc->sync_mode == WB_SYNC_ALL && rc == -EAGAIN);
for (i = 0; i < nr_pages; ++i)
@@ -2228,6 +2230,9 @@ static int
cifs_uncached_retry_writev(struct cifs_writedata *wdata)
{
int rc;
+ struct TCP_Server_Info *server;
+
+ server = tlink_tcon(wdata->cfile->tlink)->ses->server;
do {
if (wdata->cfile->invalidHandle) {
@@ -2235,7 +2240,7 @@ cifs_uncached_retry_writev(struct cifs_writedata *wdata)
if (rc != 0)
continue;
}
- rc = cifs_async_writev(wdata);
+ rc = server->ops->async_writev(wdata);
} while (rc == -EAGAIN);
return rc;
@@ -2270,6 +2275,10 @@ cifs_iovec_write(struct file *file, const struct iovec
*iov,
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
open_file = file->private_data;
tcon = tlink_tcon(open_file->tlink);
+
+ if (!tcon->ses->server->ops->async_writev)
+ return -ENOSYS;
+
offset = *poffset;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index e2dbd22..50c3697 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -786,6 +786,7 @@ struct smb_version_operations smb1_operations = {
.close = cifs_close_file,
.flush = cifs_flush_file,
.async_readv = cifs_async_readv,
+ .async_writev = cifs_async_writev,
};
struct smb_version_values smb1_values = {
--
1.7.1
--
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