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Revert "parisc: Use ldcw instruction for SMP spinlock release barrier"
authorHelge Deller <deller@gmx.de>
Tue, 28 Jul 2020 16:54:40 +0000 (18:54 +0200)
committerHelge Deller <deller@gmx.de>
Tue, 28 Jul 2020 16:54:40 +0000 (18:54 +0200)
commit6e9f06ee6c9566f3606d93182ac8f803a148504b
treed3a249ba445cdac167c333dc04a143b4069488detree | snapshot
parent462fb756c7de1ffe5bc6099149136031c2d9c02acommit | diff
Revert "parisc: Use ldcw instruction for SMP spinlock release barrier"

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+
arch/parisc/include/asm/spinlock.h diff | blob | history
arch/parisc/kernel/entry.S diff | blob | history
arch/parisc/kernel/syscall.S diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git