On 2023-10-11 11:55:58, Darrick J. Wong wrote: > On Fri, Oct 06, 2023 at 08:49:09PM +0200, Andrey Albershteyn wrote: > > As noted by Dave there are two problems with using fs-verity's > > workqueue in XFS: > > > > 1. High priority workqueues are used within XFS to ensure that data > > IO completion cannot stall processing of journal IO completions. > > Hence using a WQ_HIGHPRI workqueue directly in the user data IO > > path is a potential filesystem livelock/deadlock vector. > > > > 2. The fsverity workqueue is global - it creates a cross-filesystem > > contention point. > > > > This patch adds per-filesystem, per-cpu workqueue for fsverity > > work. > > If we ever want to implement compression and/or fscrypt, can we use this > pread workqueue for that too? I think yes. > Sounds good to me... > Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx> Thanks! -- - Andrey
