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f2fs: show precise # of blocks that user/root can use 

Let's show precise # of blocks that user/root can use through bavail and bfree
respectively.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2018-01-03 10:55:07 -08:00
parent 7f1a45a5b6
commit f66c027ead
1 changed files with 3 additions and 4 deletions
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7
fs/f2fs/super.c
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@ -994,20 +994,19 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
struct super_block *sb = dentry->d_sb;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
block_t total_count, user_block_count, start_count, ovp_count;
block_t total_count, user_block_count, start_count;
u64 avail_node_count;
total_count = le64_to_cpu(sbi->raw_super->block_count);
user_block_count = sbi->user_block_count;
start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg;
buf->f_type = F2FS_SUPER_MAGIC;
buf->f_bsize = sbi->blocksize;
buf->f_blocks = total_count - start_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_bfree = user_block_count - valid_user_blocks(sbi) -
sbi->current_reserved_blocks;
buf->f_bavail = buf->f_bfree;
avail_node_count = sbi->total_node_count - sbi->nquota_files -
F2FS_RESERVED_NODE_NUM;