Re: [PATCH 1/2] lockref: speculatively spin waiting for the lock to be released

[Al Viro]

On Thu, Jun 13, 2024 at 11:43:05AM -0700, Linus Torvalds wrote:

>        seqcount_spinlock_t        d_seq;
> 
> because seqcount_spinlock_t has been entirely broken and went from
> being 4 bytes back when, to now being 64 bytes.

1ca7d67cf5d5 "seqcount: Add lockdep functionality to seqcount/seqlock structures"