ANDROID: GKI: Add OEM data to mutex/rwsem

Reserve ANDROID_OEM_DATA in struct mutex/rw_semaphore for recording
information about the lock, such as the lock owner, which helps with
OEM specific lock optimization.

Bug: 188869548
Change-Id: I33f767a1823f854a8deb8ba9078079aa6a9d76ea
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
(cherry picked from commit 97f7f2ebf3eaa4d5f2e00b0a9c6d23462a25aa2d)
(cherry picked from commit 8326170bb6a02c97289689a4efda7062e991285f)
(cherry picked from commit 088b154d2680429192da6ee83622037659e8b862)
This commit is contained in:
Liangliang Li
2021-05-21 16:56:59 +08:00
committed by Treehugger Robot
parent 291f863611
commit f8cc197cb1
2 changed files with 4 additions and 0 deletions
+3
View File
@@ -7,6 +7,7 @@
#include <linux/osq_lock.h>
#include <linux/spinlock_types.h>
#include <linux/types.h>
#include <linux/android_vendor.h>
#ifndef CONFIG_PREEMPT_RT
@@ -51,6 +52,7 @@ struct mutex {
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
ANDROID_OEM_DATA_ARRAY(1, 2);
};
#else /* !CONFIG_PREEMPT_RT */
@@ -64,6 +66,7 @@ struct mutex {
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
ANDROID_OEM_DATA_ARRAY(1, 2);
};
#endif /* CONFIG_PREEMPT_RT */
+1
View File
@@ -66,6 +66,7 @@ struct rw_semaphore {
struct lockdep_map dep_map;
#endif
ANDROID_VENDOR_DATA(1);
ANDROID_OEM_DATA_ARRAY(1, 2);
};
#define RWSEM_UNLOCKED_VALUE 0UL