summaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_attr_item.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/xfs_attr_item.h')
-rw-r--r--fs/xfs/xfs_attr_item.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/xfs/xfs_attr_item.h b/fs/xfs/xfs_attr_item.h
new file mode 100644
index 0000000000..3280a79302
--- /dev/null
+++ b/fs/xfs/xfs_attr_item.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Copyright (C) 2022 Oracle. All Rights Reserved.
+ * Author: Allison Henderson <allison.henderson@oracle.com>
+ */
+#ifndef __XFS_ATTR_ITEM_H__
+#define __XFS_ATTR_ITEM_H__
+
+/* kernel only ATTRI/ATTRD definitions */
+
+struct xfs_mount;
+struct kmem_zone;
+
+struct xfs_attri_log_nameval {
+ struct xfs_log_iovec name;
+ struct xfs_log_iovec value;
+ refcount_t refcount;
+
+ /* name and value follow the end of this struct */
+};
+
+/*
+ * This is the "attr intention" log item. It is used to log the fact that some
+ * extended attribute operations need to be processed. An operation is
+ * currently either a set or remove. Set or remove operations are described by
+ * the xfs_attr_intent which may be logged to this intent.
+ *
+ * During a normal attr operation, name and value point to the name and value
+ * fields of the caller's xfs_da_args structure. During a recovery, the name
+ * and value buffers are copied from the log, and stored in a trailing buffer
+ * attached to the xfs_attr_intent until they are committed. They are freed
+ * when the xfs_attr_intent itself is freed when the work is done.
+ */
+struct xfs_attri_log_item {
+ struct xfs_log_item attri_item;
+ atomic_t attri_refcount;
+ struct xfs_attri_log_nameval *attri_nameval;
+ struct xfs_attri_log_format attri_format;
+};
+
+/*
+ * This is the "attr done" log item. It is used to log the fact that some attrs
+ * earlier mentioned in an attri item have been freed.
+ */
+struct xfs_attrd_log_item {
+ struct xfs_log_item attrd_item;
+ struct xfs_attri_log_item *attrd_attrip;
+ struct xfs_attrd_log_format attrd_format;
+};
+
+extern struct kmem_cache *xfs_attri_cache;
+extern struct kmem_cache *xfs_attrd_cache;
+
+#endif /* __XFS_ATTR_ITEM_H__ */