全配置启用 per-VMA 锁并清理 · v6

[mm: Make per-VMA locks available universally] From: Dave Hansen dave.hansen@linux.intel.com The per-VMA locks have been around for several years. They’ve had some bugs worked out of them and have

[binder: Make shrinker rely solely on per-VMA lock] From: Dave Hansen dave.hansen@linux.intel.com tl;dr: lock_vma_under_rcu() is already a trylock. No need to do both it and mmap_read_trylock(). L

[mm: Add RCU-based VMA lookup helper that waits for writers] From: Dave Hansen dave.hansen@linux.intel.com There are basically two parallel ways to look up a VMA: the traditional way, which is prot

[binder: Remove mmap_lock fallback] From: Dave Hansen dave.hansen@linux.intel.com Previously, the per-VMA locking could fail in the face of writers which necessitate a fallback to mmap_lock. The ne

[tcp: Remove mmap_lock fallback path] From: Dave Hansen dave.hansen@linux.intel.com Previously, the per-VMA locking could fail in the face of writers which necessitates a fallback to mmap_lock. The