Re: Move PinBuffer and UnpinBuffer to atomics

On 2015-09-11 19:46:02 +0300, YUriy Zhuravlev wrote:
> On Friday 11 September 2015 18:37:00 you wrote:
> > so unless I'm missing something, no, we haven't lost the lock.
> This section is protected by like LWLockAcquire(newPartitionLock, 
> LW_EXCLUSIVE); before it (and we can't get this buffer from hash table). 

a) As I said upthread there's a patch to remove these locks entirely
b) It doesn't matter anyway. Not every pin goes through the buffer  mapping table. StrategyGetBuffer(),
SyncOneBuffer(),...
 

Greetings,

Andres Freund