This series has fixups and cleanups for LAM. Most importantly, patch 1 fixes a sycnhronization issue that may cause crashes of userspace applications. This is a resend of v3, rebased on top of v6.10-rc6. v3: https://lore.kernel.org/lkml/20240418012835.3360429-1-yosryahmed@xxxxxxxxxx/ v2: https://lore.kernel.org/lkml/20240312155641.4003683-1-yosryahmed@xxxxxxxxxx/ v1: https://lore.kernel.org/lkml/20240312035951.3535980-1-yosryahmed@xxxxxxxxxx/ RFC: https://lore.kernel.org/lkml/20240307133916.3782068-1-yosryahmed@xxxxxxxxxx/ Yosry Ahmed (3): x86/mm: Use IPIs to synchronize LAM enablement x86/mm: Fix LAM inconsistency during context switch x86/mm: Cleanup prctl_enable_tagged_addr() nr_bits error checking arch/x86/include/asm/mmu_context.h | 8 +++++++- arch/x86/include/asm/tlbflush.h | 9 ++++----- arch/x86/kernel/process_64.c | 25 ++++++++++++++++--------- arch/x86/mm/tlb.c | 15 ++++++++------- 4 files changed, 35 insertions(+), 22 deletions(-) -- 2.45.2.803.g4e1b14247a-goog
