Re: [PATCH] mke2fs: Add discard option into mke2fs.conf

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On Mon, 1 Nov 2010, Lukas Czerner wrote:

> Allow to specify discard in mke2fs.conf. Also change the way how to
> specify default value for lazy_itable_init. It is better to have all
> this defaulting done in the same place so do it in definition (as we do
> with discard).
> 
> Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
> ---
>  misc/mke2fs.c         |    9 +++++----
>  misc/mke2fs.conf.5.in |    5 +++++
>  2 files changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/misc/mke2fs.c b/misc/mke2fs.c
> index f0ac741..960c837 100644
> --- a/misc/mke2fs.c
> +++ b/misc/mke2fs.c
> @@ -83,12 +83,12 @@ int	cflag;
>  int	verbose;
>  int	quiet;
>  int	super_only;
> -int	discard = 1;
> +int	discard = 1;	/* attempt  to discard device before fs creation */
>  int	force;
>  int	noaction;
>  int	journal_size;
>  int	journal_flags;
> -int	lazy_itable_init;	/* use lazy inode table init */
> +int	lazy_itable_init = 0;	/* do not use lazy inode table init */
>  char	*bad_blocks_filename;
>  __u32	fs_stride;
>  
> @@ -1686,8 +1686,9 @@ static void PRS(int argc, char *argv[])
>  
>  	blocksize = EXT2_BLOCK_SIZE(&fs_param);
>  
> -	lazy_itable_init = get_bool_from_profile(fs_types,
> -						 "lazy_itable_init", 0);
> +	lazy_itable_init = get_bool_from_profile(fs_types, "lazy_itable_init",
> +						 lazy_itable_init);
> +	discard = get_bool_from_profile(fs_types, "discard" , discard);
>  
>  	/* Get options from profile */
>  	for (cpp = fs_types; *cpp; cpp++) {
> diff --git a/misc/mke2fs.conf.5.in b/misc/mke2fs.conf.5.in
> index d212947..e9913cb 100644
> --- a/misc/mke2fs.conf.5.in
> +++ b/misc/mke2fs.conf.5.in
> @@ -360,6 +360,11 @@ option.  This can be used to configure the default extended options used
>  by
>  .BR mke2fs (8)
>  on a per-filesystem type basis.
> +.TP
> +.I discard
> +This relation is a boolean which specifies whether the
> +.BR mke2fs (8)
> +should attempt to discard device prior to filesystem creation.
>  .SH FILES
>  .TP
>  .I /etc/mke2fs.conf
> 

Hi Ted,

what is the status of this patch ?

Thanks!

-Lukas
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