Re: [PATCH RFC] rcu/tree: Use GFP_MEMALLOC for alloc memory to free memory pattern

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Subject: Re: [PATCH RFC] rcu/tree: Use GFP_MEMALLOC for alloc memory to free memory pattern
From: Uladzislau Rezki <urezki@xxxxxxxxx>
Date: Tue, 31 Mar 2020 18:12:15 +0200
Cc: Joel Fernandes <joel@xxxxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, rcu@xxxxxxxxxxxxxxx, willy@xxxxxxxxxxxxx, peterz@xxxxxxxxxxxxx, neilb@xxxxxxxx, vbabka@xxxxxxx, mgorman@xxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Josh Triplett <josh@xxxxxxxxxxxxxxxx>, Lai Jiangshan <jiangshanlai@xxxxxxxxx>, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, "Paul E. McKenney" <paulmck@xxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>
In-reply-to: <20200331153450.GM30449@dhcp22.suse.cz>
User-agent: Mutt/1.10.1 (2018-07-13)

> 
> __GFP_ATOMIC | __GFP_HIGH is the way to get an additional access to
> memory reserves regarless of the sleeping status.
> 
Michal, just one question here regarding proposed flags. Can we also
tight it with __GFP_RETRY_MAYFAIL flag? Means it also can repeat a few
times in order to increase the chance of being success.

Thanks!

--
Vlad Rezki

Follow-Ups:
- Re: [PATCH RFC] rcu/tree: Use GFP_MEMALLOC for alloc memory to free memory pattern
  - From: Michal Hocko

References:
- [PATCH RFC] rcu/tree: Use GFP_MEMALLOC for alloc memory to free memory pattern
  - From: Joel Fernandes (Google)
- Re: [PATCH RFC] rcu/tree: Use GFP_MEMALLOC for alloc memory to free memory pattern
  - From: Joel Fernandes
- Re: [PATCH RFC] rcu/tree: Use GFP_MEMALLOC for alloc memory to free memory pattern
  - From: Michal Hocko

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