Peter Zijlstra cd9626e9eb sched/fair: Fix external p->on_rq users ... Sean noted that ever since commit 152e11f6df ("sched/fair: Implement delayed dequeue") KVM's preemption notifiers have started mis-classifying preemption vs blocking. Notably p->on_rq is no longer sufficient to determine if a task is runnable or blocked -- the aforementioned commit introduces tasks that remain on the runqueue even through they will not run again, and should be considered blocked for many cases. Add the task_is_runnable() helper to classify things and audit all external users of the p->on_rq state. Also add a few comments. Fixes: 152e11f6df ("sched/fair: Implement delayed dequeue") Reported-by: Sean Christopherson <seanjc@google.com> Tested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20241010091843.GK33184@noisy.programming.kicks-ass.net		2024-10-14 09:14:35 +02:00
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Kconfig	KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_*	2024-07-26 14:46:14 -04:00
Makefile.kvm	KVM: Add KVM_CREATE_GUEST_MEMFD ioctl() for guest-specific backing memory	2023-11-14 08:01:03 -05:00
async_pf.c	Revert "KVM: async_pf: avoid recursive flushing of work items"	2024-06-03 08:55:55 -07:00
async_pf.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504	2019-06-19 17:09:56 +02:00
binary_stats.c	KVM: stats: remove dead stores	2021-08-13 03:35:15 -04:00
coalesced_mmio.c	KVM: Clean up coalesced MMIO ring full check	2024-08-29 19:38:33 -07:00
coalesced_mmio.h	…
dirty_ring.c	KVM: Discard zero mask with function kvm_dirty_ring_reset	2024-06-20 17:20:11 -04:00
eventfd.c	struct fd layout change (and conversion to accessor helpers)	2024-09-23 09:35:36 -07:00
guest_memfd.c	KVM: guest_memfd: abstract how prepared folios are recorded	2024-07-26 14:46:15 -04:00
irqchip.c	KVM: Setup empty IRQ routing when creating a VM	2024-06-11 14:18:34 -07:00
kvm_main.c	sched/fair: Fix external p->on_rq users	2024-10-14 09:14:35 +02:00
kvm_mm.h	KVM: Drop unused @may_block param from gfn_to_pfn_cache_invalidate_start()	2024-04-11 12:58:53 -07:00
pfncache.c	KVM: Validate hva in kvm_gpc_activate_hva() to fix __kvm_gpc_refresh() WARN	2024-06-28 08:31:46 -07:00
vfio.c	introduce fd_file(), convert all accessors to it.	2024-08-12 22:00:43 -04:00
vfio.h	…