Messages in this thread | | | Subject | Re: [PATCH 0/3] exec: Transform exec_update_mutex into a rw_semaphore | From | Waiman Long <> | Date | Thu, 3 Dec 2020 20:56:15 -0500 |
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On 12/3/20 5:42 PM, Linus Torvalds wrote: > On Thu, Dec 3, 2020 at 12:10 PM Eric W. Biederman <ebiederm@xmission.com> wrote: >> The simplest and most robust solution appears to be making >> exec_update_mutex a read/write lock and having everything execept for >> exec take the lock for read. > Looks sane to me. > > I'd like the locking people to look at the down_read_*() functions, > even if they look simple. Adding Waiman and Davidlohr to the cc just > in case they would look at that too, since they've worked on that > code.
I have looked at patches 1 & 2 on adding down_read_killable_nested() and down_read_interruptible(). They looks good to me.
Cheers, Longman
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