fs/9p: Use write_inode for data sync on server

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index f3eed3383e4fdeb87dddc890ad732925f0245319..acdc26593e64804b82ec6aa80d2054b8f2f9e074 100644 (file)
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -307,6 +307,51 @@ static int v9fs_drop_inode(struct inode *inode)
        return 1;
 }
 
+static int v9fs_write_inode(struct inode *inode,
+                           struct writeback_control *wbc)
+{
+       int ret;
+       struct p9_wstat wstat;
+       struct v9fs_inode *v9inode;
+       /*
+        * send an fsync request to server irrespective of
+        * wbc->sync_mode.
+        */
+       P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
+       v9inode = V9FS_I(inode);
+       if (!v9inode->writeback_fid)
+               return 0;
+       v9fs_blank_wstat(&wstat);
+
+       ret = p9_client_wstat(v9inode->writeback_fid, &wstat);
+       if (ret < 0) {
+               __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+               return ret;
+       }
+       return 0;
+}
+
+static int v9fs_write_inode_dotl(struct inode *inode,
+                                struct writeback_control *wbc)
+{
+       int ret;
+       struct v9fs_inode *v9inode;
+       /*
+        * send an fsync request to server irrespective of
+        * wbc->sync_mode.
+        */
+       P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
+       v9inode = V9FS_I(inode);
+       if (!v9inode->writeback_fid)
+               return 0;
+       ret = p9_client_fsync(v9inode->writeback_fid, 0);
+       if (ret < 0) {
+               __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+               return ret;
+       }
+       return 0;
+}
+
 static const struct super_operations v9fs_super_ops = {
        .alloc_inode = v9fs_alloc_inode,
        .destroy_inode = v9fs_destroy_inode,
@@ -314,6 +359,7 @@ static const struct super_operations v9fs_super_ops = {
        .evict_inode = v9fs_evict_inode,
        .show_options = generic_show_options,
        .umount_begin = v9fs_umount_begin,
+       .write_inode = v9fs_write_inode,
 };
 
 static const struct super_operations v9fs_super_ops_dotl = {
@@ -325,6 +371,7 @@ static const struct super_operations v9fs_super_ops_dotl = {
        .evict_inode = v9fs_evict_inode,
        .show_options = generic_show_options,
        .umount_begin = v9fs_umount_begin,
+       .write_inode = v9fs_write_inode_dotl,
 };
 
 struct file_system_type v9fs_fs_type = {