From: Christoph Hellwig <hch@infradead.org>
To: "Sukrit.Bhatnagar@sony.com" <Sukrit.Bhatnagar@sony.com>
Cc: Pavel Machek <pavel@ucw.cz>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Christian Brauner <brauner@kernel.org>,
"Darrick J. Wong" <djwong@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 0/2] Improve dmesg output for swapfile+hibernation
Date: Mon, 27 May 2024 04:20:24 -0700 [thread overview]
Message-ID: <ZlRseMV1HgI4zXNJ@infradead.org> (raw)
In-Reply-To: <TYAPR01MB4048D805BA4F8DEC1A12374DF6F02@TYAPR01MB4048.jpnprd01.prod.outlook.com>
On Mon, May 27, 2024 at 11:06:11AM +0000, Sukrit.Bhatnagar@sony.com wrote:
> We can pass the starting physical block offset of a swapfile into
> /sys/power/resume_offset, and hibernate can directly read/write
> into it using the swap extents information created by iomap during
> swapon. On resume, the kernel would read this offset value from
> the commandline parameters, and then access the swapfile.
Reading a physical address from userspace is not a proper interface.
What is this code even trying to do with it?
next prev parent reply other threads:[~2024-05-27 11:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-22 7:46 [PATCH 0/2] Improve dmesg output for swapfile+hibernation Sukrit Bhatnagar
2024-05-22 7:46 ` [PATCH 1/2] iomap: swap: print warning for unaligned swapfile Sukrit Bhatnagar
2024-05-22 18:02 ` Chris Li
2024-05-27 10:54 ` Sukrit.Bhatnagar
2024-05-22 7:46 ` [PATCH 2/2] mm: swap: print starting physical block offset in swapon Sukrit Bhatnagar
2024-05-22 14:56 ` Darrick J. Wong
2024-05-22 14:59 ` Christoph Hellwig
2024-05-27 11:02 ` Sukrit.Bhatnagar
2024-05-23 19:45 ` [PATCH 0/2] Improve dmesg output for swapfile+hibernation Pavel Machek
2024-05-27 11:06 ` Sukrit.Bhatnagar
2024-05-27 11:20 ` Christoph Hellwig [this message]
2024-05-27 12:51 ` Sukrit.Bhatnagar
2024-05-27 12:58 ` Christoph Hellwig
2024-05-31 14:15 ` Sukrit.Bhatnagar
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