From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80F8C79C0 for ; Wed, 30 Nov 2022 18:55:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 021D4C433D6; Wed, 30 Nov 2022 18:55:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1669834544; bh=NCRGAT2Gx7skLD4WtpLnyquFa8TS3jhU4BXj/V3O31I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tzHE06OzJgUcdtYYgtpAywS/PaF6N72MFKijeFJ868Xhb/wZ67O0pwSm8UaESe2mw rfZtmdlbnBm9dqPExt3EhgnLVZCiORUhLFU87A9SWiJ8xiOLFDxAGnReIP7drv7CMn cCdgfbHrHOfaPCOWgNyzQxvyYTj7nZcK/rtCzaSM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mikulas Patocka , Mike Snitzer , Sasha Levin Subject: [PATCH 6.0 265/289] dm integrity: clear the journal on suspend Date: Wed, 30 Nov 2022 19:24:10 +0100 Message-Id: <20221130180550.107773552@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221130180544.105550592@linuxfoundation.org> References: <20221130180544.105550592@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Mikulas Patocka [ Upstream commit 984bf2cc531e778e49298fdf6730e0396166aa21 ] There was a problem that a user burned a dm-integrity image on CDROM and could not activate it because it had a non-empty journal. Fix this problem by flushing the journal (done by the previous commit) and clearing the journal (done by this commit). Once the journal is cleared, dm-integrity won't attempt to replay it on the next activation. Signed-off-by: Mikulas Patocka Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/dm-integrity.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index f26a6cd09e0c..e97e9f97456d 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -263,6 +263,7 @@ struct dm_integrity_c { struct completion crypto_backoff; + bool wrote_to_journal; bool journal_uptodate; bool just_formatted; bool recalculate_flag; @@ -2375,6 +2376,8 @@ static void integrity_commit(struct work_struct *w) if (!commit_sections) goto release_flush_bios; + ic->wrote_to_journal = true; + i = commit_start; for (n = 0; n < commit_sections; n++) { for (j = 0; j < ic->journal_section_entries; j++) { @@ -3100,6 +3103,14 @@ static void dm_integrity_postsuspend(struct dm_target *ti) queue_work(ic->writer_wq, &ic->writer_work); drain_workqueue(ic->writer_wq); dm_integrity_flush_buffers(ic, true); + if (ic->wrote_to_journal) { + init_journal(ic, ic->free_section, + ic->journal_sections - ic->free_section, ic->commit_seq); + if (ic->free_section) { + init_journal(ic, 0, ic->free_section, + next_commit_seq(ic->commit_seq)); + } + } } if (ic->mode == 'B') { @@ -3127,6 +3138,8 @@ static void dm_integrity_resume(struct dm_target *ti) DEBUG_print("resume\n"); + ic->wrote_to_journal = false; + if (ic->provided_data_sectors != old_provided_data_sectors) { if (ic->provided_data_sectors > old_provided_data_sectors && ic->mode == 'B' && -- 2.35.1