在 2023/9/7 11:49, Matthew Wilcox 写道:
On Thu, Sep 07, 2023 at 12:39:14PM +0900, 심재선 wrote:Use GFP_KERNEL on mas_node_count instead of GFP_NOWAIT | __GFP_NOWARN in order to allow memory reclaim.
There are many paths that call maple tree's mas_node_count(). Some paths cannot reclaim memory.
What testing did you do of this patch? In particular, did you try it with lockdep enabled?