Re: [PATCH v3 0/4] kernfs: proposed locking and concurrency improvement

2021-04-19 Thread Ian Kent
On Mon, 2021-04-19 at 15:56 +0800, Fox Chen wrote: > On Fri, Apr 9, 2021 at 9:14 AM Ian Kent wrote: > > There have been a few instances of contention on the kernfs_mutex > > during > > path walks, a case on very large IBM systems seen by myself, a > > report by > > Brice Goglin and followed up by

[PATCH v3 0/4] kernfs: proposed locking and concurrency improvement

2021-04-08 Thread Ian Kent
There have been a few instances of contention on the kernfs_mutex during path walks, a case on very large IBM systems seen by myself, a report by Brice Goglin and followed up by Fox Chen, and I've since seen a couple of other reports by CoreOS users. The common thread is a large number of kernfs