Re: [PATCH 13/25] libext2fs: use ext2fs_punch() to truncate quota file

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On Thu, Oct 17, 2013 at 09:50:21PM -0700, Darrick J. Wong wrote:
> Use the new ext2fs_punch() call to truncate the quota file.  This also
> eliminates the need to fix it to work with bigalloc.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Reviewed-by: Zheng Liu <wenqing.lz@xxxxxxxxxx>

                                                - Zheng

> ---
>  lib/quota/quotaio.c |   19 +++----------------
>  1 file changed, 3 insertions(+), 16 deletions(-)
> 
> 
> diff --git a/lib/quota/quotaio.c b/lib/quota/quotaio.c
> index 8ddb92a..1bdcba6 100644
> --- a/lib/quota/quotaio.c
> +++ b/lib/quota/quotaio.c
> @@ -98,19 +98,6 @@ void update_grace_times(struct dquot *q)
>  	}
>  }
>  
> -static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
> -			       e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
> -			       blk64_t ref_block EXT2FS_ATTR((unused)),
> -			       int ref_offset EXT2FS_ATTR((unused)),
> -			       void *private EXT2FS_ATTR((unused)))
> -{
> -	blk64_t	block;
> -
> -	block = *blocknr;
> -	ext2fs_block_alloc_stats2(fs, block, -1);
> -	return 0;
> -}
> -
>  static int compute_num_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
>  			       e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
>  			       blk64_t ref_block EXT2FS_ATTR((unused)),
> @@ -135,9 +122,9 @@ errcode_t quota_inode_truncate(ext2_filsys fs, ext2_ino_t ino)
>  		inode.i_dtime = fs->now ? fs->now : time(0);
>  		if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
>  			return 0;
> -
> -		ext2fs_block_iterate3(fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
> -				      release_blocks_proc, NULL);
> +		err = ext2fs_punch(fs, ino, &inode, NULL, 0, ~0ULL);
> +		if (err)
> +			return err;
>  		fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
>  		memset(&inode, 0, sizeof(struct ext2_inode));
>  	} else {
> 
> --
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