CIFS: Move async write to ops struct

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
git-mirror · Sep 25, 2012 · c9de5c8 · c9de5c8
1 parent 09a4707
commit c9de5c8
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Showing 4 changed files with 18 additions and 3 deletions.
diff --git 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
@@ -1926,14 +1926,16 @@ 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]);
 		clear_page_dirty_for_io(wdata->pages[i]);
 	}
 
 	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
@@ -1754,6 +1754,7 @@ 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;
 
@@ -1904,7 +1905,8 @@ static int cifs_writepages(struct address_space *mapping,
 				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)
@@ -2235,14 +2237,17 @@ 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) {
 			rc = cifs_reopen_file(wdata->cfile, false);
 			if (rc != 0)
 				continue;
 		}
-		rc = cifs_async_writev(wdata);
+		rc = server->ops->async_writev(wdata);
 	} while (rc == -EAGAIN);
 
 	return rc;
@@ -2277,6 +2282,10 @@ 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
@@ -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 = {