lkml.org 
[lkml]   [2020]   [Dec]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] mm/userfaultfd: fix memory corruption due to writeprotect
    On Thu, Dec 24, 2020 at 01:49:45PM -0500, Andrea Arcangeli wrote:
    > Without the above, can't the CPU decrement the tlb_flush_pending while
    > the IPI to ack didn't arrive yet in csd_lock_wait?

    Ehm: csd_lock_wait has smp_acquire__after_ctrl_dep() so the write side
    looks ok after all sorry.

    \
     
     \ /
      Last update: 2020-12-24 20:19    [W:2.927 / U:0.012 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site