Messages in this thread | | | Date | Tue, 10 Apr 2018 23:06:51 +0300 | From | Cyrill Gorcunov <> | Subject | Re: [v3 PATCH] mm: introduce arg_lock to protect arg_start|end and env_start|end in mm_struct |
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On Tue, Apr 10, 2018 at 12:33:35PM -0700, Yang Shi wrote: ... > > The race condition is just valid when protecting start_brk, brk, start_data > and end_data with the new lock, but keep using mmap_sem in brk path. > > So, we should just need make a little tweak to have mmap_sem protect > start_brk, brk, start_data and end_data, then have the new lock protect > others so that we still can remove mmap_sem in proc as the patch is aimed to > do.
+1. Sounds like a plan.
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