Re: [RFC 4/4] Change mmap_sem to range lock

2017-04-24 Thread Laurent Dufour
On 21/04/2017 01:36, Andi Kleen wrote: > Laurent Dufour writes: > >> [resent this patch which seems to have not reached the mailing lists] >> >> Change the mmap_sem to a range lock to allow finer grain locking on >> the memory layout of a task. >> >> This patch rename mmap_sem into mmap_rw_tree t

Re: [RFC 4/4] Change mmap_sem to range lock

2017-04-20 Thread Andi Kleen
Laurent Dufour writes: > [resent this patch which seems to have not reached the mailing lists] > > Change the mmap_sem to a range lock to allow finer grain locking on > the memory layout of a task. > > This patch rename mmap_sem into mmap_rw_tree to avoid confusion and > replace any locking (read

Re: [RFC 4/4] Change mmap_sem to range lock

2017-04-20 Thread Laurent Dufour
On 20/04/2017 16:37, Peter Zijlstra wrote: > On Thu, Apr 20, 2017 at 04:28:20PM +0200, Laurent Dufour wrote: >> [resent this patch which seems to have not reached the mailing lists] > > Probably because its too big at ~180k ? Probably, but this time it has reached linux-mm ... at least.

Re: [RFC 4/4] Change mmap_sem to range lock

2017-04-20 Thread Peter Zijlstra
On Thu, Apr 20, 2017 at 04:28:20PM +0200, Laurent Dufour wrote: > [resent this patch which seems to have not reached the mailing lists] Probably because its too big at ~180k ?