Welcome to the LWN.net Weekly Edition for May 3, 2018

[Posted May 2, 2018 by corbet]

This edition contains the following feature content, which is dominated by coverage of the Linux Storage, Filesystem, and Memory-Management Summit this week. LSFMM 2018 coverage is still in progress; watch the LSFMM 2018 page for updates.

Containers and license compliance: Dirk Hohndel calls attention to the compliance hazards associated with container images.
Willy's memory-management to-do list: a grab-bag of memory-management issues from Matthew Wilcox, plus a bonus session on reworking struct page.
Repurposing page->mapping: two separate sessions about freeing up the mapping field in the page structure for more productive uses.
Heterogeneous memory management and MMU notifiers: a pair of sessions on HMM and the notifier mechanism it depends on.
Exposing storage devices as memory: a proposal for a new character-device abstraction for fast access to storage devices.
Rethinking NUMA: is the NUMA abstraction sufficient to describe today's memory architectures?
The memory-management development process: a discussion on the health of the development community and what might be done to make things work better.
The trouble with get_user_pages(): the kernel's mechanism for providing access to user-space pages can fail badly in some situations.
The LRU lock and mmap_sem: two sessions on difficult locking problems in the memory-management subsystem.
Three sessions on memory control groups: various issues, including background reclaim, swap accounting, and out-of-memory handling.
The slab and protected-memory allocators: two sessions on allocators for relatively small objects.
Improving support for large, contiguous allocations: sessions on the contiguous memory allocator and gigantic page allocations.
Toward better performance on large-memory systems: addressing some scalability issues on the largest systems.
File-level integrity: a feature akin to dm-verity that allows detection of on-disk alteration of individual files.
A kernel integrity subsystem update: an overview of the subsystem that measures and appraises file contents.
PostgreSQL visits LSFMM: a discussion led by PostgreSQL developer Andres Freund on the problems the database system has recently encountered.

This week's edition also includes these inner pages:

Brief items: Brief news items from throughout the community.
Announcements: Newsletters, conferences, security updates, patches, and more.

Please enjoy this week's edition, and, as always, thank you for supporting LWN.net.