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| author | Takashi Iwai <tiwai@suse.de> | 2015-12-23 08:33:34 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-12-23 08:33:34 +0100 |
| commit | 59c8231089be96165735585694a801ae58ec6c95 (patch) | |
| tree | 41bd60a9aec5df20e07a81fbb526c8bc05e997fc /arch/arm64/include/asm/pgtable.h | |
| parent | de5126cc3c0b0f291d08fa591dcdf237bc595a56 (diff) | |
| parent | 0fb0b822d157325b66c503d23332f64899bfb828 (diff) | |
| download | talos-op-linux-59c8231089be96165735585694a801ae58ec6c95.tar.gz talos-op-linux-59c8231089be96165735585694a801ae58ec6c95.zip | |
Merge branch 'for-linus' into for-next
Conflicts:
drivers/gpu/drm/i915/intel_pm.c
Diffstat (limited to 'arch/arm64/include/asm/pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 7e074f93f383..63f52b55defe 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -276,10 +276,14 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, * hardware updates of the pte (ptep_set_access_flags safely changes * valid ptes without going through an invalid entry). */ - if (IS_ENABLED(CONFIG_DEBUG_VM) && IS_ENABLED(CONFIG_ARM64_HW_AFDBM) && - pte_valid(*ptep)) { - BUG_ON(!pte_young(pte)); - BUG_ON(pte_write(*ptep) && !pte_dirty(pte)); + if (IS_ENABLED(CONFIG_ARM64_HW_AFDBM) && + pte_valid(*ptep) && pte_valid(pte)) { + VM_WARN_ONCE(!pte_young(pte), + "%s: racy access flag clearing: 0x%016llx -> 0x%016llx", + __func__, pte_val(*ptep), pte_val(pte)); + VM_WARN_ONCE(pte_write(*ptep) && !pte_dirty(pte), + "%s: racy dirty state clearing: 0x%016llx -> 0x%016llx", + __func__, pte_val(*ptep), pte_val(pte)); } set_pte(ptep, pte); |
