Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.4 2/2] dm table: Remove BUG_ON(in_interrupt()) | Date | Sat, 12 Dec 2020 11:09:16 -0500 |
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From: Thomas Gleixner <tglx@linutronix.de>
[ Upstream commit e7b624183d921b49ef0a96329f21647d38865ee9 ]
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@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 466158d06ab1b..8eed39dc2036a 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1154,12 +1154,6 @@ 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); -- 2.27.0
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