init android origin source code

1 files changed, 80 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/fs/ext3/file.c b/ANDROID_3.4.5/fs/ext3/file.c
new file mode 100644
index 00000000..25cb4132
--- /dev/null
+++ b/ANDROID_3.4.5/fs/ext3/file.c
@@ -0,0 +1,80 @@
+/*
+ *  linux/fs/ext3/file.c
+ *
+ * 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/file.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  ext3 fs regular file handling primitives
+ *
+ *  64-bit file support on 64-bit platforms by Jakub Jelinek
+ *	(jj@sunsite.ms.mff.cuni.cz)
+ */
+
+#include <linux/quotaops.h>
+#include "ext3.h"
+#include "xattr.h"
+#include "acl.h"
+
+/*
+ * Called when an inode is released. Note that this is different
+ * from ext3_file_open: open gets called at every open, but release
+ * gets called only when /all/ the files are closed.
+ */
+static int ext3_release_file (struct inode * inode, struct file * filp)
+{
+	if (ext3_test_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE)) {
+		filemap_flush(inode->i_mapping);
+		ext3_clear_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE);
+	}
+	/* if we are the last writer on the inode, drop the block reservation */
+	if ((filp->f_mode & FMODE_WRITE) &&
+			(atomic_read(&inode->i_writecount) == 1))
+	{
+		mutex_lock(&EXT3_I(inode)->truncate_mutex);
+		ext3_discard_reservation(inode);
+		mutex_unlock(&EXT3_I(inode)->truncate_mutex);
+	}
+	if (is_dx(inode) && filp->private_data)
+		ext3_htree_free_dir_info(filp->private_data);
+
+	return 0;
+}
+
+const struct file_operations ext3_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,
+	.unlocked_ioctl	= ext3_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= ext3_compat_ioctl,
+#endif
+	.mmap		= generic_file_mmap,
+	.open		= dquot_file_open,
+	.release	= ext3_release_file,
+	.fsync		= ext3_sync_file,
+	.splice_read	= generic_file_splice_read,
+	.splice_write	= generic_file_splice_write,
+};
+
+const struct inode_operations ext3_file_inode_operations = {
+	.setattr	= ext3_setattr,
+#ifdef CONFIG_EXT3_FS_XATTR
+	.setxattr	= generic_setxattr,
+	.getxattr	= generic_getxattr,
+	.listxattr	= ext3_listxattr,
+	.removexattr	= generic_removexattr,
+#endif
+	.get_acl	= ext3_get_acl,
+	.fiemap		= ext3_fiemap,
+};
+