1 files changed, 49 insertions, 0 deletions
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
new file mode 100644
index 0000000..da69abc
--- /dev/null
+++ b/fs/sysv/file.c
@@ -0,0 +1,49 @@
+/*
+ *  linux/fs/sysv/file.c
+ *
+ *  minix/file.c
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  coh/file.c
+ *  Copyright (C) 1993  Pascal Haible, Bruno Haible
+ *
+ *  sysv/file.c
+ *  Copyright (C) 1993  Bruno Haible
+ *
+ *  SystemV/Coherent regular file handling primitives
+ */
+
+#include "sysv.h"
+
+/*
+ * We have mostly NULLs here: the current defaults are OK for
+ * the coh filesystem.
+ */
+struct file_operations sysv_file_operations = {
+	.llseek		= generic_file_llseek,
+	.read		= generic_file_read,
+	.write		= generic_file_write,
+	.mmap		= generic_file_mmap,
+	.fsync		= sysv_sync_file,
+	.sendfile	= generic_file_sendfile,
+};
+
+struct inode_operations sysv_file_inode_operations = {
+	.truncate	= sysv_truncate,
+	.getattr	= sysv_getattr,
+};
+
+int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
+{
+	struct inode *inode = dentry->d_inode;
+	int err;
+
+	err = sync_mapping_buffers(inode->i_mapping);
+	if (!(inode->i_state & I_DIRTY))
+		return err;
+	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+		return err;
+	
+	err |= sysv_sync_inode(inode);
+	return err ? -EIO : 0;
+}