From: Thomas Gleixner
If the stop machinery is called from inactive CPU we cannot use
mutex_lock, because some other stomp machine invokation might be in
progress and the mutex can be contended. We cannot schedule from this
context, so trylock and loop.
Signed-off-by: Thomas Gleixner
Cc: stable
From: Thomas Gleixner
If the stop machinery is called from inactive CPU we cannot use
mutex_lock, because some other stomp machine invokation might be in
progress and the mutex can be contended. We cannot schedule from this
context, so trylock and loop.
Signed-off-by: Thomas Gleixner
Cc: stable
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