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From: Greg KH <greg@kroah.com>
To: sieberf@amazon.com
Cc: sj38.park@gmail.com, Jonathan.Cameron@huawei.com,
	acme@kernel.org, akpm@linux-foundation.org,
	alexander.shishkin@linux.intel.com, amit@kernel.org,
	benh@kernel.crashing.org, brendanhiggins@google.com,
	corbet@lwn.net, david@redhat.com, dwmw@amazon.com,
	elver@google.com, fan.du@intel.com, foersleo@amazon.de,
	gthelen@google.com, guoju.fgj@alibaba-inc.com,
	linux-damon@amazon.com, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	mgorman@suse.de, minchan@kernel.org, mingo@redhat.com,
	namhyung@kernel.org, peterz@infradead.org, riel@surriel.com,
	rientjes@google.com, rostedt@goodmis.org, rppt@kernel.org,
	shakeelb@google.com, shuah@kernel.org, sjpark@amazon.de,
	snu@amazon.de, vbabka@suse.cz, vdavydov.dev@gmail.com,
	zgf574564920@gmail.com
Subject: Re: [PATCH v29 09/13] mm/damon/dbgfs: Support multiple contexts
Date: Mon, 14 Jun 2021 11:44:14 +0200	[thread overview]
Message-ID: <YMck7uUlSvqFqJZH@kroah.com> (raw)
In-Reply-To: <98a75d0c-2d1a-807e-050b-fb8e7d92f447@amazon.com>

On Mon, Jun 14, 2021 at 11:30:12AM +0200, sieberf@amazon.com wrote:
> +    new_dir = debugfs_create_dir(name, root);
> +    dbgfs_dirs[dbgfs_nr_ctxs] = new_dir;
> 
> debugfs_create_dir might return ERR_PTR, should this be checked?

No.  Why do you care, the logic will keep on working afterward even if
that were to happen.

thanks,

greg k-h


  parent reply	other threads:[~2021-06-14  9:44 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20  7:56 [PATCH v29 00/13] Introduce Data Access MONitor (DAMON) SeongJae Park
2021-05-20  7:56 ` [PATCH v29 01/13] mm: " SeongJae Park
2021-05-20  7:56 ` [PATCH v29 02/13] mm/damon/core: Implement region-based sampling SeongJae Park
2021-05-20  7:56 ` [PATCH v29 03/13] mm/damon: Adaptively adjust regions SeongJae Park
2021-05-25 15:17   ` sieberf
2021-05-25 15:39     ` SeongJae Park
2021-05-20  7:56 ` [PATCH v29 04/13] mm/idle_page_tracking: Make PG_idle reusable SeongJae Park
2021-05-20  7:56 ` [PATCH v29 05/13] mm/damon: Implement primitives for the virtual memory address spaces SeongJae Park
2021-05-25 15:19   ` sieberf
2021-05-25 15:44     ` SeongJae Park
2021-05-20  7:56 ` [PATCH v29 06/13] mm/damon: Add a tracepoint SeongJae Park
2021-05-20  7:56 ` [PATCH v29 07/13] mm/damon: Implement a debugfs-based user space interface SeongJae Park
2021-06-11 18:59   ` sieberf
2021-06-14  6:48     ` SeongJae Park
2021-05-20  7:56 ` [PATCH v29 08/13] mm/damon/dbgfs: Export kdamond pid to the user space SeongJae Park
2021-06-14  7:54   ` sieberf
2021-05-20  7:56 ` [PATCH v29 09/13] mm/damon/dbgfs: Support multiple contexts SeongJae Park
2021-06-14  9:30   ` sieberf
2021-06-14  9:35     ` SeongJae Park
2021-06-14  9:44     ` Greg KH [this message]
2021-05-20  7:56 ` [PATCH v29 10/13] Documentation: Add documents for DAMON SeongJae Park
2021-06-09  7:03   ` SeongJae Park
2021-06-11 17:44   ` Boehme, Markus
2021-06-11 18:53     ` SeongJae Park
2021-05-20  7:56 ` [PATCH v29 11/13] mm/damon: Add kunit tests SeongJae Park
2021-05-20  7:56 ` [PATCH v29 12/13] mm/damon: Add user space selftests SeongJae Park
2021-06-11 13:57   ` Maximilian Heyne
2021-06-11 14:04     ` SeongJae Park
2021-05-20  7:56 ` [PATCH v29 13/13] MAINTAINERS: Update for DAMON SeongJae Park
2021-05-20 22:34 ` [PATCH v29 00/13] Introduce Data Access MONitor (DAMON) Andrew Morton
2021-05-21  2:53   ` Shakeel Butt
2021-05-21  8:55   ` Shah, Amit
2021-06-14  8:09 ` sieberf
2021-06-15 16:30   ` sieberf

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