Re: convert SpinLock* macros to static inline functions

On Wed, Feb 18, 2026 at 3:03 PM Nathan Bossart <nathandbossart@gmail.com>
wrote:
>
> On Wed, Feb 18, 2026 at 02:52:46PM -0300, Fabrízio de Royes Mello wrote:
> > On Wed, Feb 18, 2026 at 2:28 PM Nathan Bossart <nathandbossart@gmail.com
>
> > wrote:
> >> However, as soon as I did this, I got a bunch of build failures because
> >> various parts of the code still use volatile qualifiers quite
liberally.
> >> It looks like most of these (e.g., see code from commits 2487d872e0,
> >> 966fb05b58, 4bc15a8bfb, and 4db3744f1f) predate making spinlocks
compiler
> >> barriers (commit 0709b7ee72) or were cargo-culted from code that
predated
> >> it.  So, IIUC, it's probably safe to remove these volatile qualifiers
now.
> >> We could alternatively add volatile qualifiers to the new static inline
> >> function parameters, but that seems like it might just encourage
continued
> >> unnecessary use.
> >
> > Just wondering if there's some code-path that uses it inside
> > PG_TRY..PG_CATCH that can use longjump.
>
> I didn't notice any such code.  For reference, we only need "volatile" in
> PG_TRY..PG_CATCH code if a local variable is modified in the PG_TRY
section
> and used in the PG_CATCH section.
>

Sure sure sure... there's no such condition with your change (took another
look into it).

So your patches LGTM.

--
Fabrízio de Royes Mello