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Diffstat (limited to '')
| -rw-r--r-- | debian/patches-rt/0034-dm-rq-remove-BUG_ON-irqs_disabled-check.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/debian/patches-rt/0034-dm-rq-remove-BUG_ON-irqs_disabled-check.patch b/debian/patches-rt/0034-dm-rq-remove-BUG_ON-irqs_disabled-check.patch new file mode 100644 index 000000000..ee27e4207 --- /dev/null +++ b/debian/patches-rt/0034-dm-rq-remove-BUG_ON-irqs_disabled-check.patch @@ -0,0 +1,37 @@ +From 7437113ac72d093e8ee118ccfd6174f199811e3e Mon Sep 17 00:00:00 2001 +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Tue, 27 Mar 2018 16:24:15 +0200 +Subject: [PATCH 034/347] dm rq: remove BUG_ON(!irqs_disabled) check +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +In commit 052189a2ec95 ("dm: remove superfluous irq disablement in +dm_request_fn") the spin_lock_irq() was replaced with spin_lock() + a +check for disabled interrupts. Later the locking part was removed in +commit 2eb6e1e3aa87 ("dm: submit stacked requests in irq enabled +context") but the BUG_ON() check remained. + +Since the original purpose for the "are-irqs-off" check is gone (the +->queue_lock has been removed) remove it. + +Cc: Keith Busch <keith.busch@intel.com> +Cc: Mike Snitzer <snitzer@redhat.com> +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + drivers/md/dm-rq.c | 1 - + 1 file changed, 1 deletion(-) + +diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c +index 2957a3763f01..bc8192b4e7b2 100644 +--- a/drivers/md/dm-rq.c ++++ b/drivers/md/dm-rq.c +@@ -689,7 +689,6 @@ static void dm_old_request_fn(struct request_queue *q) + /* Establish tio->ti before queuing work (map_tio_request) */ + tio->ti = ti; + kthread_queue_work(&md->kworker, &tio->work); +- BUG_ON(!irqs_disabled()); + } + } + +-- +2.36.1 + |