Re: [PATCH v5 8/9] mm/mmu_notifier: mmu_notifier_range_update_to_read_only() helper

2019-02-25 Thread Ralph Campbell
On 2/19/19 12:04 PM, jgli...@redhat.com wrote: From: Jérôme Glisse Helper to test if a range is updated to read only (it is still valid to read from the range). This is useful for device driver or anyone who wish to optimize out update when they know that they already have the range map read

[PATCH v5 8/9] mm/mmu_notifier: mmu_notifier_range_update_to_read_only() helper

2019-02-19 Thread jglisse
From: Jérôme Glisse Helper to test if a range is updated to read only (it is still valid to read from the range). This is useful for device driver or anyone who wish to optimize out update when they know that they already have the range map read only. Signed-off-by: Jérôme Glisse Cc: Christian