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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/fs/btrfs/tree-log.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/fs/btrfs/tree-log.h')
-rw-r--r--kernel/fs/btrfs/tree-log.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/kernel/fs/btrfs/tree-log.h b/kernel/fs/btrfs/tree-log.h
new file mode 100644
index 000000000..6916a781e
--- /dev/null
+++ b/kernel/fs/btrfs/tree-log.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2008 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program 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 this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __TREE_LOG_
+#define __TREE_LOG_
+
+#include "ctree.h"
+#include "transaction.h"
+
+/* return value for btrfs_log_dentry_safe that means we don't need to log it at all */
+#define BTRFS_NO_LOG_SYNC 256
+
+struct btrfs_log_ctx {
+ int log_ret;
+ int log_transid;
+ int io_err;
+ bool log_new_dentries;
+ struct list_head list;
+};
+
+static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx)
+{
+ ctx->log_ret = 0;
+ ctx->log_transid = 0;
+ ctx->io_err = 0;
+ ctx->log_new_dentries = false;
+ INIT_LIST_HEAD(&ctx->list);
+}
+
+static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
+ struct btrfs_trans_handle *trans)
+{
+ ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid;
+}
+
+static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
+ struct btrfs_trans_handle *trans)
+{
+ return ACCESS_ONCE(fs_info->last_trans_log_full_commit) ==
+ trans->transid;
+}
+
+int btrfs_sync_log(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root, struct btrfs_log_ctx *ctx);
+int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);
+int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans,
+ struct btrfs_fs_info *fs_info);
+int btrfs_recover_log_trees(struct btrfs_root *tree_root);
+int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root, struct dentry *dentry,
+ const loff_t start,
+ const loff_t end,
+ struct btrfs_log_ctx *ctx);
+int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ const char *name, int name_len,
+ struct inode *dir, u64 index);
+int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root,
+ const char *name, int name_len,
+ struct inode *inode, u64 dirid);
+void btrfs_end_log_trans(struct btrfs_root *root);
+int btrfs_pin_log_trans(struct btrfs_root *root);
+void btrfs_record_unlink_dir(struct btrfs_trans_handle *trans,
+ struct inode *dir, struct inode *inode,
+ int for_rename);
+int btrfs_log_new_name(struct btrfs_trans_handle *trans,
+ struct inode *inode, struct inode *old_dir,
+ struct dentry *parent);
+#endif