return 0;
}
+/**
+ * nfs_sync_mapping - helper to flush all mmapped dirty data to disk
+ */
+int nfs_sync_mapping(struct address_space *mapping)
+{
+ int ret;
+
+ if (mapping->nrpages == 0)
+ return 0;
+ unmap_mapping_range(mapping, 0, 0, 0);
+ ret = filemap_fdatawrite(mapping);
+ if (ret != 0)
+ goto out;
+ ret = filemap_fdatawait(mapping);
+ if (ret != 0)
+ goto out;
+ ret = nfs_wb_all(mapping->host);
+out:
+ return ret;
+}
+
/*
* Invalidate the local caches
*/
struct nfs_inode *nfsi = NFS_I(inode);
if (nfsi->cache_validity & NFS_INO_INVALID_DATA) {
- if (S_ISREG(inode->i_mode)) {
- if (filemap_fdatawrite(mapping) == 0)
- filemap_fdatawait(mapping);
- nfs_wb_all(inode);
- }
+ if (S_ISREG(inode->i_mode))
+ nfs_sync_mapping(mapping);
invalidate_inode_pages2(mapping);
spin_lock(&inode->i_lock);