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d="scan'208";a="39714105" Date: Thu, 2 Jul 2020 18:23:37 +0000 From: Anchal Agarwal To: , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v2 11/11] PM / hibernate: update the resume offset on SNAPSHOT_SET_SWAP_AREA Message-ID: <20200702182337.GA3762@dev-dsk-anchalag-2a-9c2d1d96.us-west-2.amazon.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Precedence: Bulk X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: pass (identity @amazon.com) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Aleksei Besogonov The SNAPSHOT_SET_SWAP_AREA is supposed to be used to set the hibernation offset on a running kernel to enable hibernating to a swap file. However, it doesn't actually update the swsusp_resume_block variable. As a result, the hibernation fails at the last step (after all the data is written out) in the validation of the swap signature in mark_swapfiles(). Before this patch, the command line processing was the only place where swsusp_resume_block was set. [Anchal Agarwal: Changelog: Resolved patch conflict as code fragmented to snapshot_set_swap_area] Signed-off-by: Aleksei Besogonov Signed-off-by: Munehisa Kamata Signed-off-by: Anchal Agarwal --- kernel/power/user.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/kernel/power/user.c b/kernel/power/user.c index d5eedc2baa2a..e1209cefc103 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -242,8 +242,12 @@ static int snapshot_set_swap_area(struct snapshot_data= *data, return -EINVAL; } data->swap =3D swap_type_of(swdev, offset, &bdev); - if (data->swap < 0) + if (data->swap < 0) { return -ENODEV; + } else { + swsusp_resume_device =3D swdev; + swsusp_resume_block =3D offset; + } =20 data->bd_inode =3D bdev->bd_inode; bdput(bdev); --=20 2.20.1