ext4: add missing BUFFER_TRACE before ext4_journal_get_write_access

Make them more consistently
Signed-off-by: xieliang <xieliang@xiaomi.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

fs/ext4/extents.c

@@ -143,6 +143,7 @@ static int ext4_ext_get_access(handle_t *handle, struct inode *inode,
 {
 	if (path->p_bh) {
 		/* path points to block */
+		BUFFER_TRACE(path->p_bh, "get_write_access");
 		return ext4_journal_get_write_access(handle, path->p_bh);
 	}
 	/* path points to leaf/index in inode body */

fs/ext4/file.c

@@ -244,6 +244,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 			handle = ext4_journal_start_sb(sb, EXT4_HT_MISC, 1);
 			if (IS_ERR(handle))
 				return PTR_ERR(handle);
+			BUFFER_TRACE(sbi->s_sbh, "get_write_access");
 			err = ext4_journal_get_write_access(handle, sbi->s_sbh);
 			if (err) {
 				ext4_journal_stop(handle);

fs/ext4/inline.c

@@ -264,6 +264,7 @@ static int ext4_create_inline_data(handle_t *handle,
 	if (error)
 		return error;
 
+	BUFFER_TRACE(is.iloc.bh, "get_write_access");
 	error = ext4_journal_get_write_access(handle, is.iloc.bh);
 	if (error)
 		goto out;
@@ -347,6 +348,7 @@ static int ext4_update_inline_data(handle_t *handle, struct inode *inode,
 	if (error == -ENODATA)
 		goto out;
 
+	BUFFER_TRACE(is.iloc.bh, "get_write_access");
 	error = ext4_journal_get_write_access(handle, is.iloc.bh);
 	if (error)
 		goto out;
@@ -424,6 +426,7 @@ static int ext4_destroy_inline_data_nolock(handle_t *handle,
 	if (error)
 		goto out;
 
+	BUFFER_TRACE(is.iloc.bh, "get_write_access");
 	error = ext4_journal_get_write_access(handle, is.iloc.bh);
 	if (error)
 		goto out;
@@ -1007,6 +1010,7 @@ static int ext4_add_dirent_to_inline(handle_t *handle,
 	if (err)
 		return err;
 
+	BUFFER_TRACE(iloc->bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, iloc->bh);
 	if (err)
 		return err;
@@ -1669,6 +1673,7 @@ int ext4_delete_inline_entry(handle_t *handle,
 				EXT4_MIN_INLINE_DATA_SIZE;
 	}
 
+	BUFFER_TRACE(bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, bh);
 	if (err)
 		goto out;

fs/ext4/inode.c

@@ -922,6 +922,7 @@ int do_journal_get_write_access(handle_t *handle,
 	 */
 	if (dirty)
 		clear_buffer_dirty(bh);
+	BUFFER_TRACE(bh, "get write access");
 	ret = ext4_journal_get_write_access(handle, bh);
 	if (!ret && dirty)
 		ret = ext4_handle_dirty_metadata(handle, NULL, bh);
@@ -1769,6 +1770,7 @@ static int __ext4_journalled_writepage(struct page *page,
 	BUG_ON(!ext4_handle_valid(handle));
 
 	if (inline_data) {
+		BUFFER_TRACE(inode_bh, "get write access");
 		ret = ext4_journal_get_write_access(handle, inode_bh);
 
 		err = ext4_handle_dirty_metadata(handle, inode, inode_bh);
@@ -4412,6 +4414,7 @@ static int ext4_do_update_inode(handle_t *handle,
 		err = rc;
 	ext4_clear_inode_state(inode, EXT4_STATE_NEW);
 	if (set_large_file) {
+		BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get write access");
 		err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
 		if (err)
 			goto out_brelse;

fs/ext4/mballoc.c

@@ -2874,6 +2874,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 	if (!bitmap_bh)
 		goto out_err;
 
+	BUFFER_TRACE(bitmap_bh, "getting write access");
 	err = ext4_journal_get_write_access(handle, bitmap_bh);
 	if (err)
 		goto out_err;
@@ -2886,6 +2887,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
 	ext4_debug("using block group %u(%d)\n", ac->ac_b_ex.fe_group,
 			ext4_free_group_clusters(sb, gdp));
 
+	BUFFER_TRACE(gdp_bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, gdp_bh);
 	if (err)
 		goto out_err;

fs/ext4/move_extent.c

@@ -391,6 +391,7 @@ mext_insert_extents(handle_t *handle, struct inode *orig_inode,
 
 	if (depth) {
 		/* Register to journal */
+		BUFFER_TRACE(orig_path->p_bh, "get_write_access");
 		ret = ext4_journal_get_write_access(handle, orig_path->p_bh);
 		if (ret)
 			return ret;

fs/ext4/namei.c

@@ -67,6 +67,7 @@ static struct buffer_head *ext4_append(handle_t *handle,
 		return ERR_PTR(err);
 	inode->i_size += inode->i_sb->s_blocksize;
 	EXT4_I(inode)->i_disksize = inode->i_size;
+	BUFFER_TRACE(bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, bh);
 	if (err) {
 		brelse(bh);
@@ -1778,6 +1779,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
 
 	blocksize =  dir->i_sb->s_blocksize;
 	dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
+	BUFFER_TRACE(bh, "get_write_access");
 	retval = ext4_journal_get_write_access(handle, bh);
 	if (retval) {
 		ext4_std_error(dir->i_sb, retval);

fs/ext4/resize.c

@@ -348,6 +348,7 @@ static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
 	bh = sb_getblk(sb, blk);
 	if (unlikely(!bh))
 		return ERR_PTR(-ENOMEM);
+	BUFFER_TRACE(bh, "get_write_access");
 	if ((err = ext4_journal_get_write_access(handle, bh))) {
 		brelse(bh);
 		bh = ERR_PTR(err);
@@ -426,6 +427,7 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 		if (unlikely(!bh))
 			return -ENOMEM;
 
+		BUFFER_TRACE(bh, "get_write_access");
 		err = ext4_journal_get_write_access(handle, bh);
 		if (err)
 			return err;
@@ -518,6 +520,7 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
 				goto out;
 			}
 
+			BUFFER_TRACE(gdb, "get_write_access");
 			err = ext4_journal_get_write_access(handle, gdb);
 			if (err) {
 				brelse(gdb);
@@ -790,14 +793,17 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 		goto exit_dind;
 	}
 
+	BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
 	if (unlikely(err))
 		goto exit_dind;
 
+	BUFFER_TRACE(gdb_bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, gdb_bh);
 	if (unlikely(err))
 		goto exit_dind;
 
+	BUFFER_TRACE(dind, "get_write_access");
 	err = ext4_journal_get_write_access(handle, dind);
 	if (unlikely(err))
 		ext4_std_error(sb, err);
@@ -902,6 +908,7 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
 	EXT4_SB(sb)->s_group_desc = n_group_desc;
 	EXT4_SB(sb)->s_gdb_count++;
 	ext4_kvfree(o_group_desc);
+	BUFFER_TRACE(gdb_bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, gdb_bh);
 	if (unlikely(err))
 		brelse(gdb_bh);
@@ -977,6 +984,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
 	}
 
 	for (i = 0; i < reserved_gdb; i++) {
+		BUFFER_TRACE(primary[i], "get_write_access");
 		if ((err = ext4_journal_get_write_access(handle, primary[i])))
 			goto exit_bh;
 	}
@@ -1084,6 +1092,7 @@ static void update_backups(struct super_block *sb, int blk_off, char *data,
 		ext4_debug("update metadata backup %llu(+%llu)\n",
 			   backup_block, backup_block -
 			   ext4_group_first_block_no(sb, group));
+		BUFFER_TRACE(bh, "get_write_access");
 		if ((err = ext4_journal_get_write_access(handle, bh)))
 			break;
 		lock_buffer(bh);
@@ -1163,6 +1172,7 @@ static int ext4_add_new_descs(handle_t *handle, struct super_block *sb,
 		 */
 		if (gdb_off) {
 			gdb_bh = sbi->s_group_desc[gdb_num];
+			BUFFER_TRACE(gdb_bh, "get_write_access");
 			err = ext4_journal_get_write_access(handle, gdb_bh);
 
 			if (!err && reserved_gdb && ext4_bg_num_gdb(sb, group))
@@ -1433,6 +1443,7 @@ static int ext4_flex_group_add(struct super_block *sb,
 		goto exit;
 	}
 
+	BUFFER_TRACE(sbi->s_sbh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, sbi->s_sbh);
 	if (err)
 		goto exit_journal;
@@ -1645,6 +1656,7 @@ static int ext4_group_extend_no_check(struct super_block *sb,
 		return err;
 	}
 
+	BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
 	if (err) {
 		ext4_warning(sb, "error %d on journal write access", err);
@@ -1804,6 +1816,7 @@ static int ext4_convert_meta_bg(struct super_block *sb, struct inode *inode)
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
+	BUFFER_TRACE(sbi->s_sbh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, sbi->s_sbh);
 	if (err)
 		goto errout;

fs/ext4/super.c

@@ -5381,6 +5381,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
 	bh = ext4_bread(handle, inode, blk, 1, &err);
 	if (!bh)
 		goto out;
+	BUFFER_TRACE(bh, "get write access");
 	err = ext4_journal_get_write_access(handle, bh);
 	if (err) {
 		brelse(bh);

fs/ext4/xattr.c

@@ -516,6 +516,7 @@ static void ext4_xattr_update_super_block(handle_t *handle,
 	if (EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR))
 		return;
 
+	BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access");
 	if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) {
 		EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR);
 		ext4_handle_dirty_super(handle, sb);
@@ -535,6 +536,7 @@ ext4_xattr_release_block(handle_t *handle, struct inode *inode,
 	struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode);
 
 	ce = mb_cache_entry_get(ext4_mb_cache, bh->b_bdev, bh->b_blocknr);
+	BUFFER_TRACE(bh, "get_write_access");
 	error = ext4_journal_get_write_access(handle, bh);
 	if (error)
 		goto out;
@@ -777,6 +779,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
 	if (s->base) {
 		ce = mb_cache_entry_get(ext4_mb_cache, bs->bh->b_bdev,
 					bs->bh->b_blocknr);
+		BUFFER_TRACE(bs->bh, "get_write_access");
 		error = ext4_journal_get_write_access(handle, bs->bh);
 		if (error)
 			goto cleanup;
@@ -862,6 +865,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
 						EXT4_C2B(EXT4_SB(sb), 1));
 				if (error)
 					goto cleanup;
+				BUFFER_TRACE(new_bh, "get_write_access");
 				error = ext4_journal_get_write_access(handle,
 								      new_bh);
 				if (error)