CIFS: Use pid saved from cifsFileInfo in writepages and set_file_size

We need it to make them work with mandatory locking style because
we can fail in a situation like when kernel need to flush dirty pages
and there is a lock held by a process who opened file.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index ce417a9764a3..1a6a388cf5d8 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -184,6 +184,7 @@ CIFSCreateMFSymLink(const int xid, struct cifsTconInfo *tcon,
         __u16 netfid = 0;
         u8 *buf;
         unsigned int bytes_written = 0;
+        struct cifs_io_parms io_parms;
 
         buf = kmalloc(CIFS_MF_SYMLINK_FILE_SIZE, GFP_KERNEL);
         if (!buf)
@@ -203,10 +204,13 @@ CIFSCreateMFSymLink(const int xid, struct cifsTconInfo *tcon,
                 return rc;
         }
 
-        rc = CIFSSMBWrite(xid, tcon, netfid,
-                          CIFS_MF_SYMLINK_FILE_SIZE /* length */,
-                          0 /* offset */,
-                          &bytes_written, buf, NULL, 0);
+        io_parms.netfid = netfid;
+        io_parms.pid = current->tgid;
+        io_parms.tcon = tcon;
+        io_parms.offset = 0;
+        io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE;
+
+        rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, buf, NULL, 0);
         CIFSSMBClose(xid, tcon, netfid);
         kfree(buf);
         if (rc != 0)