Commit 3e6d0b4d authored Jul 06, 2016 by Chao Yu Committed by Jaegeuk Kim Jul 08, 2016

f2fs: fix incorrect f_bfree calculation in ->statfs



As manual described, f_bfree indicates total free blocks in fs, in f2fs, it
includes two parts: visible free blocks and over-provision blocks. This
patch corrrects the calculation.

fsblkcnt_t   f_bfree;   /* free blocks in fs */

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

parent ec795418

fs/f2fs/super.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -816,7 +816,7 @@ static int f2fs_statfs(struct dentry dentry, struct kstatfs buf)
		buf->f_bsize = sbi->blocksize;

		buf->f_blocks = total_count - start_count;
		buf->f_bfree = buf->f_blocks - valid_user_blocks(sbi) - ovp_count;
		buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count;
		buf->f_bavail = user_block_count - valid_user_blocks(sbi);

		buf->f_files = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;