| From: |
| Hugh Dickins <hughd-AT-google.com> |
| To: |
| Andrew Morton <akpm-AT-linux-foundation.org> |
| Subject: |
| [PATCH 00/16] tmpfs: HUGEPAGE and MEM_LOCK fcntls and memfds |
| Date: |
| Fri, 30 Jul 2021 00:22:41 -0700 |
| Message-ID: |
| <2862852d-badd-7486-3a8e-c5ea9666d6fb@google.com> |
| Cc: |
| Hugh Dickins <hughd-AT-google.com>, Shakeel Butt <shakeelb-AT-google.com>, "Kirill A. Shutemov" <kirill.shutemov-AT-linux.intel.com>, Yang Shi <shy828301-AT-gmail.com>, Miaohe Lin <linmiaohe-AT-huawei.com>, Mike Kravetz <mike.kravetz-AT-oracle.com>, Michal Hocko <mhocko-AT-suse.com>, Rik van Riel <riel-AT-surriel.com>, Christoph Hellwig <hch-AT-infradead.org>, Matthew Wilcox <willy-AT-infradead.org>, "Eric W. Biederman" <ebiederm-AT-xmission.com>, Alexey Gladkov <legion-AT-kernel.org>, Chris Wilson <chris-AT-chris-wilson.co.uk>, Matthew Auld <matthew.auld-AT-intel.com>, linux-fsdevel-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, linux-api-AT-vger.kernel.org, linux-mm-AT-kvack.org |
| Archive-link: |
| Article |
A series of HUGEPAGE and MEM_LOCK tmpfs fcntls and memfd_create flags,
after fixes (not essential for stable) and cleanups in related areas.
Against 5.14-rc3: currently no conflict with linux-next or mmotm.
01/16 huge tmpfs: fix fallocate(vanilla) advance over huge pages
02/16 huge tmpfs: fix split_huge_page() after FALLOC_FL_KEEP_SIZE
03/16 huge tmpfs: remove shrinklist addition from shmem_setattr()
04/16 huge tmpfs: revert shmem's use of transhuge_vma_enabled()
05/16 huge tmpfs: move shmem_huge_enabled() upwards
06/16 huge tmpfs: shmem_is_huge(vma, inode, index)
07/16 memfd: memfd_create(name, MFD_HUGEPAGE) for shmem huge pages
08/16 huge tmpfs: fcntl(fd, F_HUGEPAGE) and fcntl(fd, F_NOHUGEPAGE)
09/16 huge tmpfs: decide stat.st_blksize by shmem_is_huge()
10/16 tmpfs: fcntl(fd, F_MEM_LOCK) to memlock a tmpfs file
11/16 tmpfs: fcntl(fd, F_MEM_LOCKED) to test if memlocked
12/16 tmpfs: refuse memlock when fallocated beyond i_size
13/16 mm: bool user_shm_lock(loff_t size, struct ucounts *)
14/16 mm: user_shm_lock(,,getuc) and user_shm_unlock(,,putuc)
15/16 tmpfs: permit changing size of memlocked file
16/16 memfd: memfd_create(name, MFD_MEM_LOCK) for memlocked shmem
fs/fcntl.c | 8
fs/hugetlbfs/inode.c | 4
include/linux/mm.h | 4
include/linux/shmem_fs.h | 31 ++-
include/uapi/linux/fcntl.h | 17 +
include/uapi/linux/memfd.h | 4
ipc/shm.c | 4
mm/huge_memory.c | 6
mm/khugepaged.c | 2
mm/memfd.c | 27 ++
mm/mlock.c | 19 -
mm/shmem.c | 397 ++++++++++++++++++++++++++-------------
12 files changed, 370 insertions(+), 153 deletions(-)
Hugh
