Re: [PATCH] zsmalloc: do not use bit_spin_lock

[Sebastian Andrzej Siewior]

On 2020-12-20 08:21:37 [+0100], Vitaly Wool wrote:
> Not really because bit spinlock leaves preemption disabled.

It leaves it disabled for a reason. Now you just spin until the original
context gets back on the CPU. On UP with preemption, if the "lock owner"
gets preempted, the next lock attempt will lock-up the system.

Sebastian