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SubjectRe: [PATCH] quota: Add a convenience macro for filesystems
On Wed, 30 Apr 2008 17:06:18 +0200
Jan Kara <jack@suse.cz> wrote:

> Note that it cannot be an inline function because we don't have struct
> super_block prototype...
>

lame excuse ;)

> ---
> include/linux/quota.h | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/quota.h b/include/linux/quota.h
> index 52e49dc..dcddfb2 100644
> --- a/include/linux/quota.h
> +++ b/include/linux/quota.h
> @@ -347,6 +347,9 @@ struct quota_info {
> ((type) == USRQUOTA ? (sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED) : \
> (sb_dqopt(sb)->flags & DQUOT_GRP_SUSPENDED))
>
> +#define sb_any_quota_suspended(sb) (sb_has_quota_suspended(sb, USRQUOTA) | \
> + sb_has_quota_suspended(sb, GRPQUOTA))
> +
> int register_quota_format(struct quota_format_type *fmt);
> void unregister_quota_format(struct quota_format_type *fmt);


Here's a fun exercise:

sb = sb_orig;
sb_any_quota_suspended(sb++);
printk("%d\n", sb - sb_orig);

afaict this will print 44 or thereabouts.

ho hum.


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