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commit 2fa00abdeb16e50dd3e98674784c9bd37a173926
Author: Samuel Thibault <[email protected]>
Date: Wed Feb 15 10:11:00 2023 +0100
pmap: Fix busy loop waiting for pmap users
We need to avoid the kernel optimizing away the read from
pmap->cpus_using. Use a standard relaxing instruction for that.
-----------------------------------------------------------------------
Summary of changes:
i386/i386/lock.h | 2 +-
i386/i386/mp_desc.c | 4 ++--
i386/i386/smp.c | 14 ++++++--------
i386/i386/smp.h | 2 ++
i386/intel/pmap.c | 2 +-
5 files changed, 12 insertions(+), 12 deletions(-)
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