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Date: Fri, 19 Aug 2022 17:38:41 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Mike Snitzer <snitzer@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.10 151/545] dm: return early from dm_pr_call() if DM device is suspended From: Mike Snitzer <snitzer@...nel.org> [ Upstream commit e120a5f1e78fab6223544e425015f393d90d6f0d ] Otherwise PR ops may be issued while the broader DM device is being reconfigured, etc. Fixes: 9c72bad1f31a ("dm: call PR reserve/unreserve on each underlying device") Signed-off-by: Mike Snitzer <snitzer@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/md/dm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index ab0e2338e47e..1005abf76860 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -3003,6 +3003,11 @@ static int dm_call_pr(struct block_device *bdev, iterate_devices_callout_fn fn, goto out; ti = dm_table_get_target(table, 0); + if (dm_suspended_md(md)) { + ret = -EAGAIN; + goto out; + } + ret = -EINVAL; if (!ti->type->iterate_devices) goto out; -- 2.35.1
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