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 uP77pO6O 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000009, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Well I guess it couldn't wait ;) we're (very!) late in the cycle and immediately pre-LSF (will you be there btw?) so this is 6.16 for sure. Kinda wish you'd mentioned you wanted to do it as I'd rearranged my schedule to tackle this as a priority post-LSF, but you've done a good job so we're all good! Just a little heads up would have been nice ;) Some nits and you need to fix the test header thing but otherwise good. On Thu, Mar 20, 2025 at 06:39:01AM +0000, Andrei Vagin wrote: > Introduce the PAGE_IS_GUARD flag in the PAGEMAP_SCAN ioctl to expose > information about guard regions. This allows userspace tools, such as > CRIU, to detect and handle guard regions. Might be worth underlining why it is so crucial for CRIU, and what advantages PAGEMAP_SCAN confers. > > This series should be applied on top of "[PATCH 0/2] fs/proc/task_mmu: > add guard region bit to pagemap": > https://lore.kernel.org/all/2025031926-engraved-footer-3e9b@gregkh/T/ No need for this, this applies fine against mm-unstable, though we're looking at 6.16 for this now obviously. > > The series includes updates to the documentation and selftests to > reflect the new functionality. I love to see it! :>) Please also, once this moves along, send an update to the manpage please. > > Andrei Vagin (2): > fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions > selftests/mm: add PAGEMAP_SCAN guard region test > > Documentation/admin-guide/mm/pagemap.rst | 1 + > fs/proc/task_mmu.c | 8 +++- > include/uapi/linux/fs.h | 1 + > tools/testing/selftests/mm/guard-regions.c | 53 ++++++++++++++++++++++ > 4 files changed, 61 insertions(+), 2 deletions(-) > > -- > 2.49.0.rc1.451.g8f38331e32-goog > Cheers, Lorenzo