From: Dan Williams <dan.j.williams@intel.com>
To: axboe@kernel.dk
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
linux-block@vger.kernel.org, nvdimm@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: [PATCH] libnvdimm/pmem: Fix pmem_pagemap_cleanup compile warning
Date: Tue, 08 Jun 2021 21:37:09 -0700 [thread overview]
Message-ID: <162321342919.2151549.7438715629081965798.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <20210609135237.22bde319@canb.auug.org.au>
The recent fix to pmem_pagemap_cleanup() to solve a NULL pointer
dereference with the queue_to_disk() helper neglected to remove the @q
variable when queue_to_disk() was replaced.
Drop the conversion of @pgmap to its containing 'struct request_queue'
since pgmap->owner supersedes the need to reference @q.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 80b58f4e9f4a ("libnvdimm/pmem: Fix blk_cleanup_disk() usage")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/nvdimm/pmem.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index fc6b78dd2d24..1e0615b8565e 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -335,8 +335,6 @@ static const struct attribute_group *pmem_attribute_groups[] = {
static void pmem_pagemap_cleanup(struct dev_pagemap *pgmap)
{
- struct request_queue *q =
- container_of(pgmap->ref, struct request_queue, q_usage_counter);
struct pmem_device *pmem = pgmap->owner;
blk_cleanup_disk(pmem->disk);
next parent reply other threads:[~2021-06-09 4:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210609135237.22bde319@canb.auug.org.au>
2021-06-09 4:37 ` Dan Williams [this message]
2021-06-09 15:10 ` [PATCH] libnvdimm/pmem: Fix pmem_pagemap_cleanup compile warning Jens Axboe
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