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Commit e6075e98 authored by Yongqiang Yang's avatar Yongqiang Yang Committed by Theodore Ts'o
Browse files

ext4: remove lock_buffer in bclean() and setup_new_group_blocks() 



There is no need to lock the buffers since no one else should be
touching these buffers besides the file system.

Signed-off-by: default avatarYongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 6d40bc5a

fs/ext4/resize.c

+0 −4
Original line number Diff line number Diff line
@@ -147,10 +147,8 @@ static struct buffer_head *bclean(handle_t *handle, struct super_block *sb, 
		brelse(bh);

		bh = ERR_PTR(err);

	} else {

		lock_buffer(bh);

		memset(bh->b_data, 0, sb->s_blocksize);

		set_buffer_uptodate(bh);

		unlock_buffer(bh);

	}



	return bh;
@@ -229,10 +227,8 @@ static int setup_new_group_blocks(struct super_block *sb, 
			brelse(gdb);

			goto exit_journal;

		}

		lock_buffer(gdb);

		memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, gdb->b_size);

		set_buffer_uptodate(gdb);

		unlock_buffer(gdb);

		err = ext4_handle_dirty_metadata(handle, NULL, gdb);

		if (unlikely(err)) {

			brelse(gdb);