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From: Luca Coelho <luca@coelho.fi>
To: backports@vger.kernel.org
Cc: Shahar S Matityahu <shahar.s.matityahu@intel.com>,
	Luca Coelho <luciano.coelho@intel.com>
Subject: [PATCH 02/14] backports: add wait_event_killable_timeout backport support
Date: Thu, 20 Sep 2018 14:28:30 +0300
Message-ID: <20180920112842.27198-3-luca@coelho.fi> (raw)
In-Reply-To: <20180920112842.27198-1-luca@coelho.fi>

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

Allow using wait_event_killable_timeout function in kernel
older then 4.13

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 backport/backport-include/linux/wait.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/backport/backport-include/linux/wait.h b/backport/backport-include/linux/wait.h
index c4b1114e05ed..15a674cfe019 100644
--- a/backport/backport-include/linux/wait.h
+++ b/backport/backport-include/linux/wait.h
@@ -78,6 +78,21 @@ wait_on_bit_timeout(void *word, int bit, unsigned mode, unsigned long timeout)
 
 #if LINUX_VERSION_IS_LESS(4,13,0)
 #define wait_queue_entry_t wait_queue_t
+
+#define wait_event_killable_timeout(wq_head, condition, timeout)	\
+({									\
+	long __ret = timeout;						\
+	might_sleep();							\
+	if (!___wait_cond_timeout(condition))				\
+		__ret = __wait_event_killable_timeout(wq_head,		\
+						condition, timeout);	\
+	__ret;								\
+})
+
+#define __wait_event_killable_timeout(wq_head, condition, timeout)	\
+	___wait_event(wq_head, ___wait_cond_timeout(condition),		\
+		      TASK_KILLABLE, 0, timeout,			\
+		      __ret = schedule_timeout(__ret))
 #endif
 
 #endif /* __BACKPORT_LINUX_WAIT_H */
-- 
2.18.0

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Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-20 11:28 [PATCH 00/14] backport: updates for 4.19 Luca Coelho
2018-09-20 11:28 ` [PATCH 01/14] backport: fix compilation with IPV6 not set Luca Coelho
2018-09-20 11:28 ` Luca Coelho [this message]
2018-09-20 11:28 ` [PATCH 03/14] backport: introduce match_string() for kernels < 4.6 Luca Coelho
2018-09-20 11:28 ` [PATCH 04/14] backport: add patch to ignore iwlwifi removal on < 3.14 kernels Luca Coelho
2018-09-20 11:28 ` [PATCH 05/14] backport: convert tree section names to ascii Luca Coelho
2018-09-20 11:28 ` [PATCH 06/14] backport: add rhashtable-types.h Luca Coelho
2018-09-20 11:28 ` [PATCH 07/14] backport: remove duplicate leds.h inclusion from backport-4.5.c Luca Coelho
2018-09-20 11:28 ` [PATCH 08/14] backport: prevent unused subclass variable warning in < 3.18 Luca Coelho
2018-09-20 11:28 ` [PATCH 09/14] backport: make ktime_get_boottime_seconds() non-inline Luca Coelho
2018-09-20 11:28 ` [PATCH 10/14] backport: update u64_stats_init() to a new version in kernels < 4.2 Luca Coelho
2018-09-20 11:28 ` [PATCH 11/14] backports: improve skb->xmit_more handling Luca Coelho
2018-09-20 11:28 ` [PATCH 12/14] backport: update lib-rhashtable.c Luca Coelho
2018-09-20 16:23   ` Luciano Coelho
2018-09-20 11:28 ` [PATCH 13/14] backport: convert int led activate op to void when needed Luca Coelho
2018-09-23 12:30   ` Hauke Mehrtens
2018-09-24  9:24     ` Luca Coelho
2018-09-20 11:28 ` [PATCH 14/14] backports: add __alloc_bucket_spinlocks() for < 4.19 Luca Coelho
2018-09-23 14:14 ` [PATCH 00/14] backport: updates for 4.19 Hauke Mehrtens
2018-09-24  9:26   ` Luca Coelho

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