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Commit 9298a1e6 authored by Maria Yu's avatar Maria Yu Committed by Will McVicker
Browse files

ANDROID: GKI: locking/rwsem: add vendor field to struct rw_semaphore 



For ABI compatibility, we are adding a vendor field to support the
config CONFIG_RWSEM_PRIO_AWARE.

Bug: 151792119
Bug: 148872640
Signed-off-by: default avatarMaria Yu <aiquny@codeaurora.org>
Signed-off-by: default avatarBiao long <blong@codeaurora.org>
[willmcvicker: Only cherry-picked the ABI diff]
(cherry picked from commit c4b6927b)
Signed-off-by: default avatarWill McVicker <willmcvicker@google.com>
Change-Id: I3f289e2992af340b56c2df532ffeb418abf3da79
parent 46a302bb

include/linux/rwsem.h

+5 −0
Original line number Diff line number Diff line
@@ -42,6 +42,11 @@ struct rw_semaphore { 
#ifdef CONFIG_DEBUG_LOCK_ALLOC

	struct lockdep_map	dep_map;

#endif

        /* NOTICE: m_count is a vendor variable used for the config

         * CONFIG_RWSEM_PRIO_AWARE. This is included here to maintain ABI

         * compatibility with our vendors */

        /* count for waiters preempt to queue in wait list */

	long m_count;

};



/*