[patch] drivers/zram: Don't disable preemption in zcomp_stream_get/put()
From: Mike Galbraith <hidden>
Date: 2016-10-16 03:14:38
Also in:
lkml
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 <redacted> --- 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,