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6d04182dd3
Two weeks worth of accumulated fixes.
A fix for a performance regression seen on PowerVM LPARs using dedicated CPUs,
caused by our vcpu_is_preempted() returning true even for idle CPUs.
One of the ultravisor support patches broke KVM on big endian hosts in v5.4.
Our KUAP (Kernel User Access Prevention) code missed allowing access in
__clear_user(), which could lead to an oops or erroneous SEGV when triggered via
PTRACE_GETREGSET.
Two fixes for the ocxl driver, an open/remove race, and a memory leak in an
error path.
A handful of other small fixes.
Thanks to:
Andrew Donnellan, Christian Zigotzky, Christophe Leroy, Christoph Hellwig,
Daniel Axtens, David Hildenbrand, Frederic Barrat, Gautham R. Shenoy, Greg
Kurz, Ihor Pasichnyk, Juri Lelli, Marcus Comstedt, Mike Rapoport, Parth Shah,
Srikar Dronamraju, Vaidyanathan Srinivasan.
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Merge tag 'powerpc-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two weeks worth of accumulated fixes:
- A fix for a performance regression seen on PowerVM LPARs using
dedicated CPUs, caused by our vcpu_is_preempted() returning true
even for idle CPUs.
- One of the ultravisor support patches broke KVM on big endian hosts
in v5.4.
- Our KUAP (Kernel User Access Prevention) code missed allowing
access in __clear_user(), which could lead to an oops or erroneous
SEGV when triggered via PTRACE_GETREGSET.
- Two fixes for the ocxl driver, an open/remove race, and a memory
leak in an error path.
- A handful of other small fixes.
Thanks to: Andrew Donnellan, Christian Zigotzky, Christophe Leroy,
Christoph Hellwig, Daniel Axtens, David Hildenbrand, Frederic Barrat,
Gautham R. Shenoy, Greg Kurz, Ihor Pasichnyk, Juri Lelli, Marcus
Comstedt, Mike Rapoport, Parth Shah, Srikar Dronamraju, Vaidyanathan
Srinivasan"
* tag 'powerpc-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
KVM: PPC: Book3S HV: Fix regression on big endian hosts
powerpc: Fix __clear_user() with KUAP enabled
powerpc/pseries/cmm: fix managed page counts when migrating pages between zones
powerpc/8xx: fix bogus __init on mmu_mapin_ram_chunk()
ocxl: Fix potential memory leak on context creation
powerpc/irq: fix stack overflow verification
powerpc: Ensure that swiotlb buffer is allocated from low memory
powerpc/shared: Use static key to detect shared processor
powerpc/vcpu: Assume dedicated processors as non-preempt
ocxl: Fix concurrent AFU open and device removal
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