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authorJames Morris <james.morris@microsoft.com>2018-11-12 09:07:41 -0800
committerJames Morris <james.morris@microsoft.com>2018-11-12 09:07:41 -0800
commit26b76320a8a550472bbb8f42257df83fcb8d8df6 (patch)
tree8a5b569f4f070bf4971e24e7fccfe3004b8fc4ba /include/linux/rwsem.h
parentf09c296ebf407f98f4ca70892e612b54484bf663 (diff)
parentccda4af0f4b92f7b4c308d3acc262f4a7e3affad (diff)
Merge tag 'v4.20-rc2' into next-general
Sync to Linux 4.20-rc2 for downstream developers.
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);