android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dm: return early from dm_pr_call() if DM device is suspended

Browse Source 
[ Upstream commit e120a5f1e78fab6223544e425015f393d90d6f0d ]

Otherwise PR ops may be issued while the broader DM device is being
reconfigured, etc.

Fixes: 9c72bad1f3 ("dm: call PR reserve/unreserve on each underlying device")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mike Snitzer 2022-07-22 15:31:23 -04:00 committed by Greg Kroah-Hartman
parent b3f5cc0cc0
commit b7e2d64d67
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/md/dm.c
View File

@ -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;