On Thu, Sep 14, 2023 at 02:36:40PM +0200, cem@xxxxxxxxxx wrote:
> From: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
>
> The current output message prints out a suggestion of an AG size to be
> used in lieu of the user-defined one.
> The problem is this suggestion is printed in filesystem blocks, while
> agsize= option receives a size in bytes (or m, g).
>
> This patch tries to make user's life easier by outputing the suggesting
> in bytes directly.
>
> Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
Reviewed-by: Bill O'Donnell <bodonnel@xxxxxxxxxx>
> ---
> mkfs/xfs_mkfs.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
> index d3a15cf44..827d5b656 100644
> --- a/mkfs/xfs_mkfs.c
> +++ b/mkfs/xfs_mkfs.c
> @@ -3179,9 +3179,11 @@ _("agsize rounded to %lld, sunit = %d\n"),
> if (cli_opt_set(&dopts, D_AGCOUNT) ||
> cli_opt_set(&dopts, D_AGSIZE)) {
> printf(_(
> -"Warning: AG size is a multiple of stripe width. This can cause performance\n\
> -problems by aligning all AGs on the same disk. To avoid this, run mkfs with\n\
> -an AG size that is one stripe unit smaller or larger, for example %llu.\n"),
> +"Warning: AG size is a multiple of stripe width. This can cause performance\n\
> +problems by aligning all AGs on the same disk. To avoid this, run mkfs with\n\
> +an AG size that is one stripe unit smaller or larger,\n\
> +for example: agsize=%llu (%llu blks).\n"),
> + (unsigned long long)((cfg->agsize - dsunit) * cfg->blocksize),
> (unsigned long long)cfg->agsize - dsunit);
> fflush(stdout);
> goto validate;
> --
> 2.39.2
>
