176d72d941
When the task wakes up from percpu_rwsem_wait, it will enter a long runnable state, which will cause frame loss when the application starts. In order to solve this problem, we need to let the process enter the "vip" queue when it is woken up, so we need to set a flag for the process holding the lock to prove that it is about to hold the lock. Most of this long runnable state occurs in the cgroup_threadgroup_rwsem, so we only care cgroup_threadgroup_rwsem, and cgroup_threadgroup_rwsem should be exported. Finally, if the semaphore is of cgroup_threadgroup_rwsem type and has a flag, then let it join the "vip" queue. Bug: 297785167 Signed-off-by: liuxudong <liuxudong5@xiaomi.com> Change-Id: I2297dfbc2f2681581241f85a3b4fd59415ea67db |
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| .. | ||
| cgroup-internal.h | ||
| cgroup-v1.c | ||
| cgroup.c | ||
| cpuset.c | ||
| debug.c | ||
| freezer.c | ||
| legacy_freezer.c | ||
| Makefile | ||
| misc.c | ||
| namespace.c | ||
| pids.c | ||
| rdma.c | ||
| rstat.c | ||