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Message-Id: <1367271946-7239-8-git-send-email-ccross@android.com> Date: Mon, 29 Apr 2013 14:45:43 -0700 From: Colin Cross <ccross@...roid.com> To: linux-pm@...r.kernel.org Cc: linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>, arve@...roid.com, Colin Cross <ccross@...roid.com>, Darren Hart <dvhart@...ux.intel.com>, Thomas Gleixner <tglx@...utronix.de>, Andrew Morton <akpm@...ux-foundation.org>, Randy Dunlap <rdunlap@...radead.org>, Al Viro <viro@...iv.linux.org.uk> Subject: [PATCH 07/10] futex: use freezable blocking call Avoid waking up every thread sleeping in a futex_wait call during suspend and resume by calling a freezable blocking call. Signed-off-by: Colin Cross <ccross@...roid.com> --- kernel/futex.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/futex.c b/kernel/futex.c index b26dcfc..d710fae 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -61,6 +61,7 @@ #include <linux/nsproxy.h> #include <linux/ptrace.h> #include <linux/sched/rt.h> +#include <linux/freezer.h> #include <asm/futex.h> @@ -1807,7 +1808,7 @@ static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q, * is no timeout, or if it has yet to expire. */ if (!timeout || timeout->task) - schedule(); + freezable_schedule(); } __set_current_state(TASK_RUNNING); } -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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