Btrfs: use helpers for last_trans_log_full_commit instead of opencode

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

4 files changed, 36 insertions, 27 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 7c18566fd2b4..203d9a5a4030 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -26,10 +26,9 @@
 #include <linux/ratelimit.h>
 #include <linux/percpu_counter.h>
 #include "hash.h"
-#include "ctree.h"
+#include "tree-log.h"
 #include "disk-io.h"
 #include "print-tree.h"
-#include "transaction.h"
 #include "volumes.h"
 #include "raid56.h"
 #include "locking.h"
@@ -8714,7 +8713,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
 
         extent_root = root->fs_info->extent_root;
 
-        root->fs_info->last_trans_log_full_commit = trans->transid;
+        btrfs_set_log_full_commit(root->fs_info, trans);
 
         cache = btrfs_create_block_group_cache(root, chunk_offset, size);
         if (!cache)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ef3bd3deca12..95ac6b4f2390 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8329,7 +8329,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         BTRFS_I(old_inode)->dir_index = 0ULL;
         if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
                 /* force full log commit if subvolume involved. */
-                root->fs_info->last_trans_log_full_commit = trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
         } else {
                 ret = btrfs_insert_inode_ref(trans, dest,
                                              new_dentry->d_name.name,
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ffee15856130..9e1f2cd5e67a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -20,13 +20,11 @@
 #include <linux/slab.h>
 #include <linux/blkdev.h>
 #include <linux/list_sort.h>
-#include "ctree.h"
-#include "transaction.h"
+#include "tree-log.h"
 #include "disk-io.h"
 #include "locking.h"
 #include "print-tree.h"
 #include "backref.h"
-#include "tree-log.h"
 #include "hash.h"
 
 /* magic values for the inode_only field in btrfs_log_inode:
@@ -144,12 +142,10 @@ static int start_log_trans(struct btrfs_trans_handle *trans,
 
         mutex_lock(&root->log_mutex);
         if (root->log_root) {
-                if (ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) ==
-                    trans->transid) {
+                if (btrfs_need_log_full_commit(root->fs_info, trans)) {
                         ret = -EAGAIN;
                         goto out;
                 }
-
                 if (!root->log_start_pid) {
                         root->log_start_pid = current->pid;
                         clear_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state);
@@ -2512,8 +2508,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
         }
 
         /* bail out if we need to do a full commit */
-        if (ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) ==
-            trans->transid) {
+        if (btrfs_need_log_full_commit(root->fs_info, trans)) {
                 ret = -EAGAIN;
                 btrfs_free_logged_extents(log, log_transid);
                 mutex_unlock(&root->log_mutex);
@@ -2534,8 +2529,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
                 blk_finish_plug(&plug);
                 btrfs_abort_transaction(trans, root, ret);
                 btrfs_free_logged_extents(log, log_transid);
-                ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
-                                                                trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
                 mutex_unlock(&root->log_mutex);
                 goto out;
         }
@@ -2578,8 +2572,8 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
                         list_del_init(&root_log_ctx.list);
 
                 blk_finish_plug(&plug);
-                ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
-                                                                trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
+
                 if (ret != -ENOSPC) {
                         btrfs_abort_transaction(trans, root, ret);
                         mutex_unlock(&log_root_tree->log_mutex);
@@ -2623,8 +2617,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
          * now that we've moved on to the tree of log tree roots,
          * check the full commit flag again
          */
-        if (ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) ==
-            trans->transid) {
+        if (btrfs_need_log_full_commit(root->fs_info, trans)) {
                 blk_finish_plug(&plug);
                 btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark);
                 btrfs_free_logged_extents(log, log_transid);
@@ -2638,8 +2631,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
                                          EXTENT_DIRTY | EXTENT_NEW);
         blk_finish_plug(&plug);
         if (ret) {
-                ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
-                                                                trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
                 btrfs_abort_transaction(trans, root, ret);
                 btrfs_free_logged_extents(log, log_transid);
                 mutex_unlock(&log_root_tree->log_mutex);
@@ -2668,8 +2660,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
          */
         ret = write_ctree_super(trans, root->fs_info->tree_root, 1);
         if (ret) {
-                ACCESS_ONCE(root->fs_info->last_trans_log_full_commit) =
-                                                                trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
                 btrfs_abort_transaction(trans, root, ret);
                 goto out_wake_log_root;
         }
@@ -2887,7 +2878,7 @@ fail:
 out_unlock:
         mutex_unlock(&BTRFS_I(dir)->log_mutex);
         if (ret == -ENOSPC) {
-                root->fs_info->last_trans_log_full_commit = trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
                 ret = 0;
         } else if (ret < 0)
                 btrfs_abort_transaction(trans, root, ret);
@@ -2920,7 +2911,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
                                   dirid, &index);
         mutex_unlock(&BTRFS_I(inode)->log_mutex);
         if (ret == -ENOSPC) {
-                root->fs_info->last_trans_log_full_commit = trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
                 ret = 0;
         } else if (ret < 0 && ret != -ENOENT)
                 btrfs_abort_transaction(trans, root, ret);
@@ -4131,8 +4122,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
                          * make sure any commits to the log are forced
                          * to be full commits
                          */
-                        root->fs_info->last_trans_log_full_commit =
-                                trans->transid;
+                        btrfs_set_log_full_commit(root->fs_info, trans);
                         ret = 1;
                         break;
                 }
@@ -4178,6 +4168,10 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
                 goto end_no_trans;
         }
 
+        /*
+         * The prev transaction commit doesn't complete, we need do
+         * full commit by ourselves.
+         */
         if (root->fs_info->last_trans_log_full_commit >
             root->fs_info->last_trans_committed) {
                 ret = 1;
@@ -4247,7 +4241,7 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
 end_trans:
         dput(old_parent);
         if (ret < 0) {
-                root->fs_info->last_trans_log_full_commit = trans->transid;
+                btrfs_set_log_full_commit(root->fs_info, trans);
                 ret = 1;
         }
 
diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
index 91b145fce333..7f5b41bd5373 100644
--- a/fs/btrfs/tree-log.h
+++ b/fs/btrfs/tree-log.h
@@ -19,6 +19,9 @@
 #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
 
@@ -35,6 +38,19 @@ static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx)
         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);