From e120a5f1e78fab6223544e425015f393d90d6f0d Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 22 Jul 2022 15:31:23 -0400 Subject: [PATCH] dm: return early from dm_pr_call() if DM device is suspended 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 --- drivers/md/dm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 560ad05..e44415d 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -3096,6 +3096,11 @@ 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; -- 2.7.4