Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-05-02 Thread Suren Baghdasaryan
On Fri, May 2, 2025 at 3:11 PM Jann Horn wrote: > > On Fri, May 2, 2025 at 12:10 AM Andrii Nakryiko > wrote: > > On Tue, Apr 29, 2025 at 10:25 AM Jann Horn wrote: > > > On Tue, Apr 29, 2025 at 7:15 PM Suren Baghdasaryan > > > wrote: > > > > On Tue, Apr 29, 2025 at 8:56 AM Jann Horn wrote: > >

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-05-02 Thread Jann Horn
On Fri, May 2, 2025 at 12:10 AM Andrii Nakryiko wrote: > On Tue, Apr 29, 2025 at 10:25 AM Jann Horn wrote: > > On Tue, Apr 29, 2025 at 7:15 PM Suren Baghdasaryan > > wrote: > > > On Tue, Apr 29, 2025 at 8:56 AM Jann Horn wrote: > > > > On Wed, Apr 23, 2025 at 12:54 AM Andrii Nakryiko > > > >

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-05-01 Thread Andrii Nakryiko
On Tue, Apr 29, 2025 at 10:25 AM Jann Horn wrote: > > On Tue, Apr 29, 2025 at 7:15 PM Suren Baghdasaryan wrote: > > On Tue, Apr 29, 2025 at 8:56 AM Jann Horn wrote: > > > On Wed, Apr 23, 2025 at 12:54 AM Andrii Nakryiko > > > wrote: > > > > On Fri, Apr 18, 2025 at 10:50 AM Suren Baghdasaryan

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-04-29 Thread Jann Horn
On Tue, Apr 29, 2025 at 7:15 PM Suren Baghdasaryan wrote: > On Tue, Apr 29, 2025 at 8:56 AM Jann Horn wrote: > > On Wed, Apr 23, 2025 at 12:54 AM Andrii Nakryiko > > wrote: > > > On Fri, Apr 18, 2025 at 10:50 AM Suren Baghdasaryan > > > wrote: > > > > Utilize speculative vma lookup to find and

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-04-29 Thread Suren Baghdasaryan
On Tue, Apr 29, 2025 at 8:56 AM Jann Horn wrote: > > On Wed, Apr 23, 2025 at 12:54 AM Andrii Nakryiko > wrote: > > On Fri, Apr 18, 2025 at 10:50 AM Suren Baghdasaryan > > wrote: > > > Utilize speculative vma lookup to find and snapshot a vma without > > > taking mmap_lock during PROCMAP_QUERY i

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-04-29 Thread Jann Horn
On Wed, Apr 23, 2025 at 12:54 AM Andrii Nakryiko wrote: > On Fri, Apr 18, 2025 at 10:50 AM Suren Baghdasaryan wrote: > > Utilize speculative vma lookup to find and snapshot a vma without > > taking mmap_lock during PROCMAP_QUERY ioctl execution. Concurrent > > address space modifications are dete

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-04-23 Thread Suren Baghdasaryan
On Tue, Apr 22, 2025 at 3:54 PM Andrii Nakryiko wrote: > > On Fri, Apr 18, 2025 at 10:50 AM Suren Baghdasaryan wrote: > > > > Utilize speculative vma lookup to find and snapshot a vma without > > taking mmap_lock during PROCMAP_QUERY ioctl execution. Concurrent > > address space modifications are

Re: [PATCH v3 8/8] mm/maps: execute PROCMAP_QUERY ioctl under RCU

2025-04-22 Thread Andrii Nakryiko
On Fri, Apr 18, 2025 at 10:50 AM Suren Baghdasaryan wrote: > > Utilize speculative vma lookup to find and snapshot a vma without > taking mmap_lock during PROCMAP_QUERY ioctl execution. Concurrent > address space modifications are detected and the lookup is retried. > While we take the mmap_lock f