RE: [HACKERS] ? potential bug in LockBuffer ?

[Mikheev, Vadim]

>                         (buf->r_locks)--;
>                         if (!buf->r_locks)
>                                 *buflock &= ~BL_R_LOCK;
> 
> 
> Or I am missing something...

buflock is per-backend flag, it's not in shmem. Backend is
allowed only single lock per buffer.

Vadim

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