Simon Riggs 47c4333189 Avoid tricky race condition recording XLOG_HINT ... We copy the buffer before inserting an XLOG_HINT to avoid WAL CRC errors caused by concurrent hint writes to buffer while share locked. To make this work we refactor RestoreBackupBlock() to allow an XLOG_HINT to avoid the normal path for backup blocks, which assumes the underlying buffer is exclusive locked. Resulting code completely changes layout of XLOG_HINT WAL records, but this isn't even beta code, so this is a low impact change. In passing, avoid taking WALInsertLock for full page writes on checksummed hints, remove related cruft from XLogInsert() and improve xlog_desc record for XLOG_HINT. Andres Freund Bug report by Fujii Masao, testing by Jeff Janes and Jaime Casanova, review by Jeff Davis and Simon Riggs. Applied with changes from review and some comment editing.		2013-04-08 08:52:39 +01:00
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buffer	Avoid tricky race condition recording XLOG_HINT	2013-04-08 08:52:39 +01:00
file	Add support for piping COPY to/from an external program.	2013-02-27 18:22:31 +02:00
freespace	Allow I/O reliability checks using 16-bit checksums	2013-03-22 13:54:07 +00:00
ipc	Add lock_timeout configuration parameter.	2013-03-16 23:22:57 -04:00
large_object	Code beautification for object-access hook machinery.	2013-03-06 20:53:25 -05:00
lmgr	Calculate # of semaphores correctly with --disable-spinlocks.	2013-04-04 16:40:37 +03:00
page	README comments on checksums on page holes.	2013-04-08 08:42:52 +01:00
smgr	Improve code documentation about "magnetic disk" storage manager.	2013-03-30 14:23:45 -04:00
Makefile	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00