libsync: open new location of sw_sync file
sw_sync file for debug was moved to debugfs. Try to open it and if it
fails try to open /dev/sw_sync.
Test: Sync unit tests still passes.
Change-Id: Ie078fbc2eb5294f28b916a9e65b7fcd3a18a8580
hange-Id: I216874964368d939bed2779d98cd89e527a57d45
diff --git a/libsync/sync.c b/libsync/sync.c
index fff62e7..5946096 100644
--- a/libsync/sync.c
+++ b/libsync/sync.c
@@ -101,7 +101,13 @@
int sw_sync_timeline_create(void)
{
- return open("/dev/sw_sync", O_RDWR);
+ int ret;
+
+ ret = open("/sys/kernel/debug/sync/sw_sync", O_RDWR);
+ if (ret < 0)
+ ret = open("/dev/sw_sync", O_RDWR);
+
+ return ret;
}
int sw_sync_timeline_inc(int fd, unsigned count)