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Message-ID: <1476587662.1538.8.camel@gmail.com>
Date: Sun, 16 Oct 2016 05:14:22 +0200
From: Mike Galbraith <umgwanakikbuti@...il.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>,
linux-rt-users <linux-rt-users@...r.kernel.org>,
Steven Rostedt <rostedt@...dmis.org>
Subject: [patch] drivers/zram: Don't disable preemption in
zcomp_stream_get/put()
In v4.7, the driver switched to percpu compression streams, disabling
preemption (get/put_cpu_ptr()). Use get/put_cpu_light() instead.
Signed-off-by: Mike Galbraith <umgwanakikbuti@...il.com>
---
drivers/block/zram/zcomp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/block/zram/zcomp.c
+++ b/drivers/block/zram/zcomp.c
@@ -118,12 +118,12 @@ ssize_t zcomp_available_show(const char
struct zcomp_strm *zcomp_stream_get(struct zcomp *comp)
{
- return *get_cpu_ptr(comp->stream);
+ return *per_cpu_ptr(comp->stream, get_cpu_light());
}
void zcomp_stream_put(struct zcomp *comp)
{
- put_cpu_ptr(comp->stream);
+ put_cpu_light();
}
int zcomp_compress(struct zcomp_strm *zstrm,
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