> -----Original Message----- > From: Matthew Wilcox [mailto:[email protected]] > Sent: Thursday, March 02, 2017 1:20 PM > To: Peter Zijlstra > Cc: Byungchul Park; [email protected]; [email protected]; > [email protected]; [email protected]; [email protected]; linux- > [email protected]; [email protected]; [email protected]; > [email protected]; [email protected] > Subject: Re: [PATCH v5 06/13] lockdep: Implement crossrelease feature > > On Tue, Feb 28, 2017 at 07:15:47PM +0100, Peter Zijlstra wrote: > > (And we should not be returning to userspace with locks held anyway -- > > lockdep already has a check for that). > > Don't we return to userspace with page locks held, eg during async > directio?
Hello, I think that the check when returning to user with crosslocks held should be an exception. Don't you think so? Thanks, Byungchul
