Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-02-01 Thread Peter Xu
On Wed, Feb 01, 2023 at 08:55:01AM +0100, Michal Prívozník wrote: > On 1/31/23 22:01, Peter Xu wrote: > > I'll wait 1-2 more days to see whether Michal has anything to comment. > > Yeah, we can go with your patches and leave FD passing for future work. > It's orthogonal after all. > > In the end

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-31 Thread Michal Prívozník
On 1/31/23 22:01, Peter Xu wrote: > I'll wait 1-2 more days to see whether Michal has anything to comment. Yeah, we can go with your patches and leave FD passing for future work. It's orthogonal after all. In the end we can have (in the order of precedence): 1) new cmd line argument, say:

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-31 Thread Peter Xu
On Tue, Jan 31, 2023 at 08:06:55PM +, Daniel P. Berrangé wrote: > On Tue, Jan 31, 2023 at 02:48:54PM -0500, Peter Xu wrote: > > On Thu, Jan 26, 2023 at 12:26:45PM -0500, Peter Xu wrote: > > > On Thu, Jan 26, 2023 at 03:59:33PM +, Daniel P. Berrangé wrote: > > > > On Thu, Jan 26, 2023 at

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-31 Thread Daniel P . Berrangé
On Tue, Jan 31, 2023 at 02:48:54PM -0500, Peter Xu wrote: > On Thu, Jan 26, 2023 at 12:26:45PM -0500, Peter Xu wrote: > > On Thu, Jan 26, 2023 at 03:59:33PM +, Daniel P. Berrangé wrote: > > > On Thu, Jan 26, 2023 at 10:25:05AM -0500, Peter Xu wrote: > > > > On Thu, Jan 26, 2023 at 02:15:11PM

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-31 Thread Peter Xu
On Thu, Jan 26, 2023 at 12:26:45PM -0500, Peter Xu wrote: > On Thu, Jan 26, 2023 at 03:59:33PM +, Daniel P. Berrangé wrote: > > On Thu, Jan 26, 2023 at 10:25:05AM -0500, Peter Xu wrote: > > > On Thu, Jan 26, 2023 at 02:15:11PM +, Dr. David Alan Gilbert wrote: > > > > * Michal Prívozník

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Peter Xu
On Thu, Jan 26, 2023 at 03:59:33PM +, Daniel P. Berrangé wrote: > On Thu, Jan 26, 2023 at 10:25:05AM -0500, Peter Xu wrote: > > On Thu, Jan 26, 2023 at 02:15:11PM +, Dr. David Alan Gilbert wrote: > > > * Michal Prívozník (mpriv...@redhat.com) wrote: > > > > On 1/25/23 23:40, Peter Xu

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Daniel P . Berrangé
On Thu, Jan 26, 2023 at 10:25:05AM -0500, Peter Xu wrote: > On Thu, Jan 26, 2023 at 02:15:11PM +, Dr. David Alan Gilbert wrote: > > * Michal Prívozník (mpriv...@redhat.com) wrote: > > > On 1/25/23 23:40, Peter Xu wrote: > > > > The new /dev/userfaultfd handle is superior to the system call

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Peter Xu
On Thu, Jan 26, 2023 at 04:29:10PM +0100, Michal Prívozník wrote: > On 1/26/23 16:25, Peter Xu wrote: > > On Thu, Jan 26, 2023 at 02:15:11PM +, Dr. David Alan Gilbert wrote: > >> * Michal Prívozník (mpriv...@redhat.com) wrote: > >>> On 1/25/23 23:40, Peter Xu wrote: > The new

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Michal Prívozník
On 1/26/23 16:25, Peter Xu wrote: > On Thu, Jan 26, 2023 at 02:15:11PM +, Dr. David Alan Gilbert wrote: >> * Michal Prívozník (mpriv...@redhat.com) wrote: >>> On 1/25/23 23:40, Peter Xu wrote: The new /dev/userfaultfd handle is superior to the system call with a better permission

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Peter Xu
On Thu, Jan 26, 2023 at 02:15:11PM +, Dr. David Alan Gilbert wrote: > * Michal Prívozník (mpriv...@redhat.com) wrote: > > On 1/25/23 23:40, Peter Xu wrote: > > > The new /dev/userfaultfd handle is superior to the system call with a > > > better permission control and also works for a

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Dr. David Alan Gilbert
* Michal Prívozník (mpriv...@redhat.com) wrote: > On 1/25/23 23:40, Peter Xu wrote: > > The new /dev/userfaultfd handle is superior to the system call with a > > better permission control and also works for a restricted seccomp > > environment. > > > > The new device was only introduced in v6.1

Re: [PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-26 Thread Michal Prívozník
On 1/25/23 23:40, Peter Xu wrote: > The new /dev/userfaultfd handle is superior to the system call with a > better permission control and also works for a restricted seccomp > environment. > > The new device was only introduced in v6.1 so we need a header update. > > Please have a look, thanks.

[PATCH 0/3] util/userfaultfd: Support /dev/userfaultfd

2023-01-25 Thread Peter Xu
The new /dev/userfaultfd handle is superior to the system call with a better permission control and also works for a restricted seccomp environment. The new device was only introduced in v6.1 so we need a header update. Please have a look, thanks. Peter Xu (3): linux-headers: Update to v6.1