linux-ext4 - Re: [PATCH 2/4 v2] ext4: Fix trimmed block count computing

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Message-ID: <20120305123820.GE6643@quack.suse.cz>
Date:	Mon, 5 Mar 2012 13:38:20 +0100
From:	Jan Kara <jack@...e.cz>
To:	Lukas Czerner <lczerner@...hat.com>
Cc:	linux-ext4@...r.kernel.org, tytso@....edu
Subject: Re: [PATCH 2/4 v2] ext4: Fix trimmed block count computing

On Fri 02-03-12 13:11:56, Lukas Czerner wrote:
> Currently when there is not enough free block in the block group to
> discard (grp->bb_free < minlen) the 'trimmed' is bumped up anyway with
> the number of discarded blocks from the previous iteration. Fix this
> by bumping up 'trimmed' only if the ext4_trim_all_free() was actually
> run.
  Looks good. You can add:
Reviewed-by: Jan Kara <jack@...e.cz>

								Honza
> 
> Signed-off-by: Lukas Czerner <lczerner@...hat.com>
> ---
> v2: nothing changed
> 
>  fs/ext4/mballoc.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 16a3aeb..f20688e 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -5083,8 +5083,8 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
>  				ret = cnt;
>  				break;
>  			}
> +			trimmed += cnt;
>  		}
> -		trimmed += cnt;
>  
>  		/*
>  		 * For every group except the first one, we are sure
> -- 
> 1.7.4.4
> 
> --
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-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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