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List:       freebsd-commits-all
Subject:    =?UTF-8?Q?Re:_svn_commit:_r367229_-_in_head/sys/contrib/openzfs:_include?= =?UTF-8?Q?/sys/zstd_modul
From:       "Brandon Bergren" <bdragon () imap ! cc>
Date:       2020-10-31 20:33:17
Message-ID: 540675c8-35bb-40a7-b947-73f31a72bff2 () www ! fastmail ! com
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Maybe this is it?:

Index: sys/contrib/openzfs/include/os/freebsd/spl/sys/atomic.h
===================================================================
--- sys/contrib/openzfs/include/os/freebsd/spl/sys/atomic.h	(revision 367230)
+++ sys/contrib/openzfs/include/os/freebsd/spl/sys/atomic.h	(working copy)
@@ -188,6 +188,8 @@
  */
 #undef atomic_add_64
 #define	atomic_add_64(ptr, val) *(ptr) += val
+#undef atomic_sub_64
+#define atomic_sub_64(ptr, val) *(ptr) -= val
 #endif /* !_STANDALONE */
 
 #endif	/* !_OPENSOLARIS_SYS_ATOMIC_H_ */


Note that there is also another build failure in the tree at the moment.

On Sat, Oct 31, 2020, at 3:25 PM, Brandon Bergren wrote:
> Actually, looking at it again, it looks like the spl header is doing it 
> wrong and not providing a fallback for atomic_sub_64, it's just 
> defining it to atomic_subtract_64 and assuming that exists.
> 
> On Sat, Oct 31, 2020, at 3:23 PM, Mateusz Guzik wrote:
> > Yep, jenkins told me. Working on it.
> > 
> > On 10/31/20, Brandon Bergren <bdragon@freebsd.org> wrote:
> > > This doesn't compile on platforms such as powerpc without pulling in the
> > > opensolaris atomics header from the spl that does locking emulation of 64
> > > bit atomics, as platforms that don't have native 64 bit atomics do not
> > > provide them in the system header.
>

-- 
  Brandon Bergren
  bdragon@imap.cc
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