[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/exofs/file.c b/ap/os/linux/linux-3.4.x/fs/exofs/file.c
new file mode 100644
index 0000000..491c6c0
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/exofs/file.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2005, 2006
+ * Avishay Traeger (avishay@gmail.com)
+ * Copyright (C) 2008, 2009
+ * Boaz Harrosh <bharrosh@panasas.com>
+ *
+ * Copyrights for code taken from ext2:
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ * from
+ * linux/fs/minix/inode.c
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ * This file is part of exofs.
+ *
+ * exofs is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation. Since it is based on ext2, and the only
+ * valid version of GPL for the Linux kernel is version 2, the only valid
+ * version of GPL for exofs is version 2.
+ *
+ * exofs is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with exofs; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "exofs.h"
+
+static int exofs_release_file(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+/* exofs_file_fsync - flush the inode to disk
+ *
+ * Note, in exofs all metadata is written as part of inode, regardless.
+ * The writeout is synchronous
+ */
+static int exofs_file_fsync(struct file *filp, loff_t start, loff_t end,
+ int datasync)
+{
+ struct inode *inode = filp->f_mapping->host;
+ int ret;
+
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret)
+ return ret;
+
+ mutex_lock(&inode->i_mutex);
+ ret = sync_inode_metadata(filp->f_mapping->host, 1);
+ mutex_unlock(&inode->i_mutex);
+ return ret;
+}
+
+static int exofs_flush(struct file *file, fl_owner_t id)
+{
+ int ret = vfs_fsync(file, 0);
+ /* TODO: Flush the OSD target */
+ return ret;
+}
+
+const struct file_operations exofs_file_operations = {
+ .llseek = generic_file_llseek,
+ .read = do_sync_read,
+ .write = do_sync_write,
+ .aio_read = generic_file_aio_read,
+ .aio_write = generic_file_aio_write,
+ .mmap = generic_file_mmap,
+ .open = generic_file_open,
+ .release = exofs_release_file,
+ .fsync = exofs_file_fsync,
+ .flush = exofs_flush,
+ .splice_read = generic_file_splice_read,
+ .splice_write = generic_file_splice_write,
+};
+
+const struct inode_operations exofs_file_inode_operations = {
+ .setattr = exofs_setattr,
+};