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From: Andrew Morton <akpm@linux-foundation.org>
To: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: Roman Gushchin <guro@fb.com>, Michal Hocko <mhocko@suse.com>,
Matthew Wilcox <willy@infradead.org>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Thomas Garnier <thgarnie@google.com>,
Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>,
Steven Rostedt <rostedt@goodmis.org>,
Joel Fernandes <joelaf@google.com>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH 3/4] mm/vmap: get rid of one single unlink_va() when merge
Date: Wed, 22 May 2019 11:19:11 -0700 [thread overview]
Message-ID: <20190522111911.963fbb4950e051a35e92887c@linux-foundation.org> (raw)
In-Reply-To: <20190522150939.24605-3-urezki@gmail.com>
On Wed, 22 May 2019 17:09:38 +0200 "Uladzislau Rezki (Sony)" <urezki@gmail.com> wrote:
> It does not make sense to try to "unlink" the node that is
> definitely not linked with a list nor tree. On the first
> merge step VA just points to the previously disconnected
> busy area.
>
> On the second step, check if the node has been merged and do
> "unlink" if so, because now it points to an object that must
> be linked.
Again, what is the motivation for this change? Seems to be a bit of a
code/logic cleanup, no significant runtime effect?
next prev parent reply other threads:[~2019-05-22 18:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-22 15:09 [PATCH 1/4] mm/vmap: remove "node" argument Uladzislau Rezki (Sony)
2019-05-22 15:09 ` [PATCH 2/4] mm/vmap: preload a CPU with one object for split purpose Uladzislau Rezki (Sony)
2019-05-22 18:19 ` Andrew Morton
2019-05-23 11:42 ` Uladzislau Rezki
2019-05-22 15:09 ` [PATCH 3/4] mm/vmap: get rid of one single unlink_va() when merge Uladzislau Rezki (Sony)
2019-05-22 18:19 ` Andrew Morton [this message]
2019-05-23 11:49 ` Uladzislau Rezki
2019-05-22 15:09 ` [PATCH 4/4] mm/vmap: move BUG_ON() check to the unlink_va() Uladzislau Rezki (Sony)
2019-05-22 18:19 ` Andrew Morton
2019-05-23 12:07 ` Uladzislau Rezki
[not found] ` <20190524103316.1352-1-hdanton@sina.com>
2019-05-24 14:14 ` [PATCH 2/4] mm/vmap: preload a CPU with one object for split purpose Uladzislau Rezki
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