Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / ext3 / file.c

diff --git a/kernel/fs/ext3/file.c b/kernel/fs/ext3/file.c
new file mode 100644 (file)
index 0000000..3b8f650
--- /dev/null
+++ b/kernel/fs/ext3/file.c
@@ -0,0 +1,79 @@
+/*
+ *  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_iter      = generic_file_read_iter,
+       .write_iter     = generic_file_write_iter,
+       .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   = iter_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,
+       .set_acl        = ext3_set_acl,
+       .fiemap         = ext3_fiemap,
+};
+