Tom Lane c9d8edc906 Repair bufmgr deadlock problem reported by Michael Wildpaner. Must take ... share lock on a buffer being written out before releasing BufMgrLock in the BufferAlloc code path; if we do it later we might block on someone who's re-pinned the buffer. I believe this is only an issue for BufferAlloc and not the other places that call FlushBuffer. BufferSync must continue to do it the old way since it may well be trying to write buffers that other backends have pinned; but it should not be holding any conflicting locks. FlushRelationBuffers is okay since it's got exclusive lock at the relation level.		2005-01-03 18:49:41 +00:00
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buffer	Repair bufmgr deadlock problem reported by Michael Wildpaner. Must take	2005-01-03 18:49:41 +00:00
file	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
freespace	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
ipc	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
large_object	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
lmgr	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
page	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
smgr	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
Makefile	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00