On Tue, Apr 11, 2023 at 11:10:41AM -0400, Liam R. Howlett wrote:
Greg,
Here are the backports of the patches for the maple tree fixes from 6.3-rc6 for 6.1 and 6.2.
The patches differ with a few extra patches for the maple tree, and changes to the mm code patch to work without the vma iterator change.
Liam R. Howlett (14): maple_tree: remove GFP_ZERO from kmem_cache_alloc() and kmem_cache_alloc_bulk() maple_tree: fix potential rcu issue maple_tree: reduce user error potential maple_tree: fix handle of invalidated state in mas_wr_store_setup() maple_tree: fix mas_prev() and mas_find() state handling maple_tree: fix mas_skip_node() end slot detection maple_tree: be more cautious about dead nodes maple_tree: refine ma_state init from mas_start() maple_tree: detect dead nodes in mas_start() maple_tree: fix freeing of nodes in rcu mode maple_tree: remove extra smp_wmb() from mas_dead_leaves() maple_tree: add smp_rmb() to dead node detection maple_tree: add RCU lock checking to rcu callback functions mm: enable maple tree RCU mode by default.
include/linux/mm_types.h | 3 +- kernel/fork.c | 3 + lib/maple_tree.c | 389 ++++++++++++++++++++----------- mm/mmap.c | 3 +- tools/testing/radix-tree/maple.c | 18 +- 5 files changed, 263 insertions(+), 153 deletions(-)
-- 2.39.2
Thanks for these. One of them was already in the 6.2.y and 6.1.y releases, so I just skipped it.
greg k-h