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nilfs2: record used amount of each checkpoint in checkpoint list

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This records the number of used blocks per checkpoint in each
checkpoint entry of cpfile.  Even though userland tools can get the
block count via nilfs_get_cpinfo ioctl, it was not updated by the
nilfs2 kernel code.  This fixes the issue and makes it available for
userland tools to calculate used amount per checkpoint.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Jiro SEKIBA <jir@unicus.jp>
This commit is contained in:
Ryusuke Konishi
2011-03-05 00:19:32 +09:00
parent ae191838b0
commit be667377a8
7 changed files with 29 additions and 21 deletions
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4
fs/nilfs2/direct.c
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@@ -146,7 +146,7 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
if (NILFS_BMAP_USE_VBN(bmap))
nilfs_bmap_set_target_v(bmap, key, req.bpr_ptr);
nilfs_bmap_add_blocks(bmap, 1);
nilfs_inode_add_blocks(bmap->b_inode, 1);
}
return ret;
}
@@ -168,7 +168,7 @@ static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)
if (!ret) {
nilfs_bmap_commit_end_ptr(bmap, &req, dat);
nilfs_direct_set_ptr(bmap, key, NILFS_BMAP_INVALID_PTR);
nilfs_bmap_sub_blocks(bmap, 1);
nilfs_inode_sub_blocks(bmap->b_inode, 1);
}
return ret;
}