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3 Commits

Author SHA1 Message Date
John David Anglin 4202c7aa00 parisc: Do not use an ordered store in pa_tlb_lock() 
commit e72b23dec1da5e62a0090c5da1d926778284e230 upstream.

No need to use an ordered store in pa_tlb_lock() and update the comment
regarng usage of the sid register to unlocak a spinlock in
tlb_unlock0().

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-03-16 16:33:54 +08:00
Helge Deller 901e219de2 Revert "parisc: Use ldcw instruction for SMP spinlock release barrier" 
commit 6e9f06ee6c9566f3606d93182ac8f803a148504b upstream.

This reverts commit 9e5c602186a692a7e848c0da17aed40f49d30519.
No need to use the ldcw instruction as SMP spinlock release barrier.
Revert it to gain back speed again.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.2+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2021-03-16 16:33:53 +08:00
Kaixu Xia 590eaf1fec Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
 2021-03-16 11:01:34 +08:00