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authorArnd Bergmann <arnd@arndb.de>2012-11-16 17:11:46 +0100
committerArnd Bergmann <arnd@arndb.de>2012-11-16 17:11:46 +0100
commitbac2f668864eca45b702ee394bef4c5f3a86658c (patch)
tree9b82100e2f447ae2b3b20f4a935b8020c885adcf /crypto/cryptd.c
parentcff9f37a1e7b2565f254b5ab40c3213cc0f823a1 (diff)
parent632506a21a3b5f0596e89d55cda6b482bec331a3 (diff)
Merge tag 'imx-dt' of git://git.pengutronix.de/git/imx/linux-2.6 into next/dt
From Sascha Hauer <s.hauer@pengutronix.de>: ARM i.MX dt updates for 3.8 * tag 'imx-dt' of git://git.pengutronix.de/git/imx/linux-2.6: Add device tree file for the armadeus apf27 ARM i.MX: Add Ka-Ro TX25 devicetree ARM i.MX25: Add devicetree ARM i.MX25: Add devicetree support ARM i.MX25: Add missing clock gates Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'crypto/cryptd.c')
-rw-r--r--crypto/cryptd.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 671d4d6d14df..7bdd61b867c8 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -137,13 +137,18 @@ static void cryptd_queue_worker(struct work_struct *work)
struct crypto_async_request *req, *backlog;
cpu_queue = container_of(work, struct cryptd_cpu_queue, work);
- /* Only handle one request at a time to avoid hogging crypto
- * workqueue. preempt_disable/enable is used to prevent
- * being preempted by cryptd_enqueue_request() */
+ /*
+ * Only handle one request at a time to avoid hogging crypto workqueue.
+ * preempt_disable/enable is used to prevent being preempted by
+ * cryptd_enqueue_request(). local_bh_disable/enable is used to prevent
+ * cryptd_enqueue_request() being accessed from software interrupts.
+ */
+ local_bh_disable();
preempt_disable();
backlog = crypto_get_backlog(&cpu_queue->queue);
req = crypto_dequeue_request(&cpu_queue->queue);
preempt_enable();
+ local_bh_enable();
if (!req)
return;