+Cc: Andrew, Michal, David Are there any other comments on this patch series from Marc-André? Is anything else needed to move forward?
I have reviewed the patches in the series. David Herrmann (the original memfd_create/file sealing author) has also taken a look at the patches. One outstanding issue is sorting out the config option dependencies. Although, IMO this is not a strict requirement for this series. I have addressed this issue in a follow on series: http://lkml.kernel.org/r/20171109014109.21077-1-mike.krav...@oracle.com -- Mike Kravetz On 11/07/2017 04:27 AM, Marc-André Lureau wrote: > Hi, > > Recently, Mike Kravetz added hugetlbfs support to memfd. However, he > didn't add sealing support. One of the reasons to use memfd is to have > shared memory sealing when doing IPC or sharing memory with another > process with some extra safety. qemu uses shared memory & hugetables > with vhost-user (used by dpdk), so it is reasonable to use memfd > now instead for convenience and security reasons. > > Thanks! > > v3: > - do remaining MFD_DEF_SIZE/mfd_def_size substitutions > - fix missing unistd.h include in common.c > - tweaked a bit commit message prefixes > - added reviewed-by tags > > v2: > - add "memfd-hugetlb:" prefix in memfd-test > - run fuse test on hugetlb backend memory > - rename function memfd_file_get_seals() -> memfd_file_seals_ptr() > - update commit messages > - added reviewed-by tags > > RFC->v1: > - split rfc patch, after early review feedback > - added patch for memfd-test changes > - fix build with hugetlbfs disabled > - small code and commit messages improvements > > Marc-André Lureau (9): > shmem: unexport shmem_add_seals()/shmem_get_seals() > shmem: rename functions that are memfd-related > hugetlb: expose hugetlbfs_inode_info in header > hugetlb: implement memfd sealing > shmem: add sealing support to hugetlb-backed memfd > memfd-test: test hugetlbfs sealing > memfd-test: add 'memfd-hugetlb:' prefix when testing hugetlbfs > memfd-test: move common code to a shared unit > memfd-test: run fuse test on hugetlb backend memory > > fs/fcntl.c | 2 +- > fs/hugetlbfs/inode.c | 39 +++-- > include/linux/hugetlb.h | 11 ++ > include/linux/shmem_fs.h | 6 +- > mm/shmem.c | 59 ++++--- > tools/testing/selftests/memfd/Makefile | 5 + > tools/testing/selftests/memfd/common.c | 46 ++++++ > tools/testing/selftests/memfd/common.h | 9 ++ > tools/testing/selftests/memfd/fuse_test.c | 44 +++-- > tools/testing/selftests/memfd/memfd_test.c | 212 > ++++--------------------- > tools/testing/selftests/memfd/run_fuse_test.sh | 2 +- > tools/testing/selftests/memfd/run_tests.sh | 1 + > 12 files changed, 200 insertions(+), 236 deletions(-) > create mode 100644 tools/testing/selftests/memfd/common.c > create mode 100644 tools/testing/selftests/memfd/common.h >
