Messages in this thread | | | From | Linus Torvalds <> | Date | Thu, 3 Jun 2021 12:12:14 -0700 | Subject | Re: [PATCH 2/2] mm: adds NOSIGBUS extension for out-of-band shmem read |
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On Thu, Jun 3, 2021 at 12:07 PM Hugh Dickins <hughd@google.com> wrote: > > But the point that we've arrived at, that I'm actually now fairly > happy with, is do *not* permit MAP_NOSIGBUS on MAP_SHARED mappings.
Yeah, if that's sufficient, then that original patch should just work as-is.
But there was some reason why people didn't like that patch originally, and I think it was literally about how it only worked on private mappings (the "we don't have a flag for it in the vm_flags" part was just a small detail.
I guess that objection ended up changing over time.
Linus
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