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Date:   Mon, 26 Jun 2017 15:45:50 -0600
From:   Andreas Dilger <adilger@...ger.ca>
To:     Tahsin Erdogan <tahsin@...gle.com>
Cc:     "Darrick J . Wong" <darrick.wong@...cle.com>,
        Theodore Ts'o <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 07/12] e2fsck: track ea_inode references

On Jun 26, 2017, at 7:43 AM, Tahsin Erdogan <tahsin@...gle.com> wrote:
> 
> An extended attribute inode has a ref count to track how many entries
> point to it. Update e2fsck to verify that the stored ref count is
> correct.
> 
> Signed-off-by: Tahsin Erdogan <tahsin@...gle.com>
> ---
> diff --git a/e2fsck/message.c b/e2fsck/message.c
> index 34201a37fd4b..525f4a1e7628 100644
> --- a/e2fsck/message.c
> +++ b/e2fsck/message.c
> @@ -466,6 +466,13 @@ static _INLINE_ void expand_percent_expression(FILE *f, ext2_filsys fs,
> 		fprintf(f, "%*u", width, ctx->num);
> #else
> 		fprintf(f, "%*llu", width, (long long)ctx->num);
> +#endif
> +		break;
> +	case 'n':
> +#ifdef EXT2_NO_64_TYPE
> +		fprintf(f, "%*u", width, ctx->num2);
> +#else
> +		fprintf(f, "%*llu", width, (long long)ctx->num2);
> #endif

Rather than a series of "#ifdef EXT2_NO_64_TYPE" checks, it would be cleaner
to have a single #define to set the printf type, like:

#ifdef EXT2_NO_64_TYPE
#define EXT2_64U "%*u"
#define EXT2_64D "%*d"
#define EXT2_64X "%*x"
#else
#define EXT2_64U "%*llu"
#define EXT2_64D "%*lld"
#define EXT2_64X "%*llx"
#endif

and then use "EXT2_64D" or "EXT2_64U" in all of these fprintf() statements.

Cheers, Andreas






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