Messages in this thread | | | From | Michel Lespinasse <> | Date | Thu, 4 Jun 2020 01:38:18 -0700 | Subject | Re: [PATCH v6 10/12] mmap locking API: rename mmap_sem to mmap_lock |
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On Thu, Jun 4, 2020 at 1:16 AM youling 257 <youling257@gmail.com> wrote: > 2020-06-04 13:57 GMT+08:00, Michel Lespinasse <walken@google.com>: > > However I would like more information about your report. Did you apply > > the series yourself ? If so, what base tree did you apply it onto ? If > > not, what tree did you use that already included the series ? > > I build linux next-20200603 tree have the kernel/sys.c error.
Thanks for the info.
The proper fix is to replace down_write(&mm->mmap_sem) with mmap_write_lock(mm) and up_write(&mm->mmap_sem) with mmap_write_unlock(mm)
If you just needed a quick fix to get the tree to build, what you did (replacing mmap_sem with mmap_lock) is also fine.
Thanks again !
-- Michel "Walken" Lespinasse A program is never fully debugged until the last user dies.
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