Andres Freund 9074e41dbd Micro optimize LWLockAttemptLock() a bit. ...

LWLockAttemptLock pointlessly read the lock's state in every loop
iteration, even though pg_atomic_compare_exchange_u32() returns the old
value. Instead do that only once before the loop iteration.

Additionally there's no need to have the expected_state variable,
old_state mostly had the same value anyway.

Noticed-By: Heikki Linnakangas
Backpatch: 9.5, no reason to let the branches diverge at this point

2015-08-02 18:41:41 +02:00

..

buffer

Fix a couple of bugs with wal_log_hints.

2015-06-26 12:38:24 +03:00

file

Remove special cases for ETXTBSY from new fsync'ing logic.

2015-05-29 15:11:36 -04:00

freespace

Update copyright for 2015

2015-01-06 11:43:47 -05:00

ipc

pgindent run for 9.5

2015-05-23 21:35:49 -04:00

large_object

Use FLEXIBLE_ARRAY_MEMBER in struct varlena.

2015-02-20 16:51:53 -05:00

lmgr

Micro optimize LWLockAttemptLock() a bit.

2015-08-02 18:41:41 +02:00

page

pgindent run for 9.5

2015-05-23 21:35:49 -04:00

smgr

pgindent run for 9.5

2015-05-23 21:35:49 -04:00

Makefile

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00