From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
The BUG_ON(in_interrupt()) in dm_table_event() is a historic leftover from
a rework of the dm table code which changed the calling context.
Issuing a BUG for a wrong calling context is frowned upon and
in_interrupt() is deprecated and only covering parts of the wrong
contexts. The sanity check for the context is covered by
CONFIG_DEBUG_ATOMIC_SLEEP and other debug facilities already.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: dm-devel@xxxxxxxxxx
Cc: Mike Snitzer <snitzer@xxxxxxxxxx>
Cc: Alasdair Kergon <agk@xxxxxxxxxx>
---
drivers/md/dm-table.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index ce543b761be7b..2073ee8d18f4f 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1247,12 +1247,6 @@ void dm_table_event_callback(struct dm_table *t,
void dm_table_event(struct dm_table *t)
{
- /*
- * You can no longer call dm_table_event() from interrupt
- * context, use a bottom half instead.
- */
- BUG_ON(in_interrupt());
-
mutex_lock(&_event_lock);
if (t->event_fn)
t->event_fn(t->event_context);
--
2.29.2
--
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