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From: Hugh Dickins <hughd@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hughd@google.com>,
	Shakeel Butt <shakeelb@google.com>,
	 "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	 Yang Shi <shy828301@gmail.com>,
	Miaohe Lin <linmiaohe@huawei.com>,
	 Mike Kravetz <mike.kravetz@oracle.com>,
	Michal Hocko <mhocko@suse.com>,  Rik van Riel <riel@surriel.com>,
	Christoph Hellwig <hch@infradead.org>,
	 Matthew Wilcox <willy@infradead.org>,
	 "Eric W. Biederman" <ebiederm@xmission.com>,
	 Alexey Gladkov <legion@kernel.org>,
	 Chris Wilson <chris@chris-wilson.co.uk>,
	 Matthew Auld <matthew.auld@intel.com>,
	linux-fsdevel@vger.kernel.org,  linux-kernel@vger.kernel.org,
	linux-api@vger.kernel.org,  linux-mm@kvack.org
Subject: [PATCH 00/16] tmpfs: HUGEPAGE and MEM_LOCK fcntls and memfds
Date: Fri, 30 Jul 2021 00:22:41 -0700 (PDT)	[thread overview]
Message-ID: <2862852d-badd-7486-3a8e-c5ea9666d6fb@google.com> (raw)

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


             reply	other threads:[~2021-07-30  7:22 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-30  7:22 Hugh Dickins [this message]
2021-07-30  7:25 ` [PATCH 01/16] huge tmpfs: fix fallocate(vanilla) advance over huge pages Hugh Dickins
2021-07-30 21:36   ` Yang Shi
2021-08-01  3:38     ` Hugh Dickins
2021-08-02 20:36       ` Yang Shi
2021-07-30  7:28 ` [PATCH 02/16] huge tmpfs: fix split_huge_page() after FALLOC_FL_KEEP_SIZE Hugh Dickins
2021-07-30 23:48   ` Yang Shi
2021-07-30  7:30 ` [PATCH 03/16] huge tmpfs: remove shrinklist addition from shmem_setattr() Hugh Dickins
2021-07-30 21:50   ` Yang Shi
2021-07-30  7:36 ` [PATCH 04/16] huge tmpfs: revert shmem's use of transhuge_vma_enabled() Hugh Dickins
2021-07-30 21:56   ` Yang Shi
2021-08-01  4:01     ` Hugh Dickins
2021-08-02 20:39       ` Yang Shi
2021-07-30  7:39 ` [PATCH 05/16] huge tmpfs: move shmem_huge_enabled() upwards Hugh Dickins
2021-07-30 21:57   ` Yang Shi
2021-07-30  7:42 ` [PATCH 06/16] huge tmpfs: shmem_is_huge(vma, inode, index) Hugh Dickins
2021-07-30 23:34   ` Yang Shi
2021-08-01  5:22     ` Hugh Dickins
2021-08-01  5:37       ` Hugh Dickins
2021-08-02 21:14       ` Yang Shi
2021-08-04  8:28         ` Hugh Dickins
2021-08-04 19:01           ` Yang Shi
2021-08-06  5:21             ` Hugh Dickins
2021-08-06 17:41               ` Yang Shi
2021-08-05 23:04         ` Yang Shi
2021-08-06  5:43           ` Hugh Dickins
2021-08-06 17:57             ` Yang Shi
2021-08-12 18:19               ` Yang Shi
2021-07-30  7:45 ` [PATCH 07/16] memfd: memfd_create(name, MFD_HUGEPAGE) for shmem huge pages Hugh Dickins
2021-07-30 12:01   ` kernel test robot
2021-08-04 14:03   ` Kirill A. Shutemov
2021-08-06  3:33     ` Hugh Dickins
2021-07-30  7:48 ` [PATCH 08/16] huge tmpfs: fcntl(fd, F_HUGEPAGE) and fcntl(fd, F_NOHUGEPAGE) Hugh Dickins
2021-08-04 14:08   ` Kirill A. Shutemov
2021-08-06  4:34     ` Hugh Dickins
2021-07-30  7:51 ` [PATCH 09/16] huge tmpfs: decide stat.st_blksize by shmem_is_huge() Hugh Dickins
2021-07-30 23:40   ` Yang Shi
2021-07-30  7:55 ` [PATCH 10/16] tmpfs: fcntl(fd, F_MEM_LOCK) to memlock a tmpfs file Hugh Dickins
2021-08-03  1:38   ` Matthew Wilcox
2021-08-04  9:15     ` Hugh Dickins
2021-07-30  7:57 ` [PATCH 11/16] tmpfs: fcntl(fd, F_MEM_LOCKED) to test if memlocked Hugh Dickins
2021-07-30  8:00 ` [PATCH 12/16] tmpfs: refuse memlock when fallocated beyond i_size Hugh Dickins
2021-07-30  8:03 ` [PATCH 13/16] mm: bool user_shm_lock(loff_t size, struct ucounts *) Hugh Dickins
2021-07-30  8:06 ` [PATCH 14/16] mm: user_shm_lock(,,getuc) and user_shm_unlock(,,putuc) Hugh Dickins
2021-07-30  8:09 ` [PATCH 15/16] tmpfs: permit changing size of memlocked file Hugh Dickins
2021-07-30  8:13 ` [PATCH 16/16] memfd: memfd_create(name, MFD_MEM_LOCK) for memlocked shmem Hugh Dickins
2021-07-30 11:24   ` kernel test robot

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