The patch titled
Subject: frv: cmpxchg: implement cmpxchg64()
has been added to the -mm tree. Its filename is
frv-cmpxchg-implement-cmpxchg64.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/frv-cmpxchg-implement-cmpxchg64.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/frv-cmpxchg-implement-cmpxchg64.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Will Deacon <will.deacon@xxxxxxx>
Subject: frv: cmpxchg: implement cmpxchg64()
FRV supports 64-bit cmpxchg, which is provided by the arch code as
__cmpxchg_64 and subsequently used to implement atomic64_cmpxchg.
This patch hooks up the generic cmpxchg64 API using the same function,
which also provides default definitions of the relaxed, acquire and
release variants. This fixes the build when COMPILE_TEST=y and
IOMMU_IO_PGTABLE_LPAE=y.
Link: http://lkml.kernel.org/r/1499084670-6996-1-git-send-email-will.deacon@xxxxxxx
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: Robin Murphy <robin.murphy@xxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/frv/include/asm/cmpxchg.h | 1 +
1 file changed, 1 insertion(+)
diff -puN arch/frv/include/asm/cmpxchg.h~frv-cmpxchg-implement-cmpxchg64 arch/frv/include/asm/cmpxchg.h
--- a/arch/frv/include/asm/cmpxchg.h~frv-cmpxchg-implement-cmpxchg64
+++ a/arch/frv/include/asm/cmpxchg.h
@@ -76,6 +76,7 @@ extern uint32_t __xchg_32(uint32_t i, vo
* - if (*ptr != test) then orig = *ptr;
*/
extern uint64_t __cmpxchg_64(uint64_t test, uint64_t new, volatile uint64_t *v);
+#define cmpxchg64(p, o, n) __cmpxchg_64((o), (n), (p))
#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
_
Patches currently in -mm which might be from will.deacon@xxxxxxx are
mm-gup-remove-broken-vm_bug_on_page-compound-check-for-hugepages.patch
mm-page_ref-ensure-page_ref_unfreeze-is-ordered-against-prior-accesses.patch
mm-migrate-stabilise-page-count-when-migrating-transparent-hugepages.patch
frv-cmpxchg-implement-cmpxchg64.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
