summaryrefslogtreecommitdiff
path: root/include/linux/rwsem.h
diff options
context:
space:
mode:
authorJani Nikula <jani.nikula@intel.com>2018-11-20 13:14:08 +0200
committerJani Nikula <jani.nikula@intel.com>2018-11-20 13:14:08 +0200
commit2ac5e38ea4203852d6e99edd3cf11f044b0a409f (patch)
tree1ef02da98d56309368ad2b6a4e492bafe5bb4faf /include/linux/rwsem.h
parentf48cc647f3e196a3179d695d3c2d56c13e9dec98 (diff)
parent9235dd441af43599b9cdcce599a3da4083fcad3c (diff)
Merge drm/drm-next into drm-intel-next-queued
Pull in v4.20-rc3 via drm-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'include/linux/rwsem.h')
-rw-r--r--include/linux/rwsem.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index ab93b6eae696..67dbb57508b1 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -45,10 +45,10 @@ struct rw_semaphore {
};
/*
- * Setting bit 0 of the owner field with other non-zero bits will indicate
+ * Setting bit 1 of the owner field but not bit 0 will indicate
* that the rwsem is writer-owned with an unknown owner.
*/
-#define RWSEM_OWNER_UNKNOWN ((struct task_struct *)-1L)
+#define RWSEM_OWNER_UNKNOWN ((struct task_struct *)-2L)
extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_read_failed_killable(struct rw_semaphore *sem);