srv0srv.h Support raw disk partitions as data files

srv0start.c	Support raw disk partitions as data files
srv0srv.c	Support raw disk partitions as data files
row0purge.c	< 4 GB rows, doublewrite, hang fixes
row0row.c	< 4 GB rows, doublewrite, hang fixes
row0sel.c	< 4 GB rows, doublewrite, hang fixes
row0uins.c	< 4 GB rows, doublewrite, hang fixes
row0umod.c	< 4 GB rows, doublewrite, hang fixes
row0undo.c	< 4 GB rows, doublewrite, hang fixes
row0upd.c	< 4 GB rows, doublewrite, hang fixes
srv0srv.c	< 4 GB rows, doublewrite, hang fixes
srv0start.c	< 4 GB rows, doublewrite, hang fixes
sync0rw.c	< 4 GB rows, doublewrite, hang fixes
sync0sync.c	< 4 GB rows, doublewrite, hang fixes
trx0purge.c	< 4 GB rows, doublewrite, hang fixes
trx0rec.c	< 4 GB rows, doublewrite, hang fixes
trx0sys.c	< 4 GB rows, doublewrite, hang fixes
btr0btr.c	< 4 GB rows, doublewrite, hang fixes
btr0cur.c	< 4 GB rows, doublewrite, hang fixes
buf0buf.c	< 4 GB rows, doublewrite, hang fixes
buf0flu.c	< 4 GB rows, doublewrite, hang fixes
buf0rea.c	< 4 GB rows, doublewrite, hang fixes
data0data.c	< 4 GB rows, doublewrite, hang fixes
fil0fil.c	< 4 GB rows, doublewrite, hang fixes
fsp0fsp.c	< 4 GB rows, doublewrite, hang fixes
ibuf0ibuf.c	< 4 GB rows, doublewrite, hang fixes
lock0lock.c	< 4 GB rows, doublewrite, hang fixes
log0log.c	< 4 GB rows, doublewrite, hang fixes
log0recv.c	< 4 GB rows, doublewrite, hang fixes
os0file.c	< 4 GB rows, doublewrite, hang fixes
page0cur.c	< 4 GB rows, doublewrite, hang fixes
pars0pars.c	< 4 GB rows, doublewrite, hang fixes
rem0cmp.c	< 4 GB rows, doublewrite, hang fixes
rem0rec.c	< 4 GB rows, doublewrite, hang fixes
row0ins.c	< 4 GB rows, doublewrite, hang fixes
row0mysql.c	< 4 GB rows, doublewrite, hang fixes
univ.i  	< 4 GB rows, doublewrite, hang fixes
data0data.ic	< 4 GB rows, doublewrite, hang fixes
mach0data.ic	< 4 GB rows, doublewrite, hang fixes
rem0rec.ic	< 4 GB rows, doublewrite, hang fixes
row0upd.ic	< 4 GB rows, doublewrite, hang fixes
trx0rec.ic	< 4 GB rows, doublewrite, hang fixes
rem0cmp.h	< 4 GB rows, doublewrite, hang fixes
rem0rec.h	< 4 GB rows, doublewrite, hang fixes
row0ins.h	< 4 GB rows, doublewrite, hang fixes
row0mysql.h	< 4 GB rows, doublewrite, hang fixes
row0row.h	< 4 GB rows, doublewrite, hang fixes
row0upd.h	< 4 GB rows, doublewrite, hang fixes
srv0srv.h	< 4 GB rows, doublewrite, hang fixes
sync0sync.h	< 4 GB rows, doublewrite, hang fixes
trx0rec.h	< 4 GB rows, doublewrite, hang fixes
trx0sys.h	< 4 GB rows, doublewrite, hang fixes
trx0types.h	< 4 GB rows, doublewrite, hang fixes
trx0undo.h	< 4 GB rows, doublewrite, hang fixes
ut0dbg.h	< 4 GB rows, doublewrite, hang fixes
ut0ut.h 	< 4 GB rows, doublewrite, hang fixes
btr0btr.h	< 4 GB rows, doublewrite, hang fixes
btr0cur.h	< 4 GB rows, doublewrite, hang fixes
buf0buf.h	< 4 GB rows, doublewrite, hang fixes
buf0flu.h	< 4 GB rows, doublewrite, hang fixes
data0data.h	< 4 GB rows, doublewrite, hang fixes
dict0mem.h	< 4 GB rows, doublewrite, hang fixes
fil0fil.h	< 4 GB rows, doublewrite, hang fixes
fsp0fsp.h	< 4 GB rows, doublewrite, hang fixes
os0file.h	< 4 GB rows, doublewrite, hang fixes


innobase/include/btr0btr.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/btr0cur.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/buf0buf.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/buf0flu.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/data0data.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/dict0mem.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/fil0fil.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/fsp0fsp.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/os0file.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/rem0cmp.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/rem0rec.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/row0ins.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/row0mysql.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/row0row.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/row0upd.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/sync0sync.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/trx0rec.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/trx0sys.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/trx0types.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/trx0undo.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/ut0dbg.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/ut0ut.h:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/data0data.ic:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/mach0data.ic:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/rem0rec.ic:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/row0upd.ic:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/trx0rec.ic:
  < 4 GB rows, doublewrite, hang fixes
innobase/include/univ.i:
  < 4 GB rows, doublewrite, hang fixes
innobase/btr/btr0btr.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/btr/btr0cur.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/buf/buf0buf.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/buf/buf0flu.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/buf/buf0rea.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/data/data0data.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/fil/fil0fil.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/fsp/fsp0fsp.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/ibuf/ibuf0ibuf.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/lock/lock0lock.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/log/log0log.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/log/log0recv.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/os/os0file.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/page/page0cur.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/pars/pars0pars.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/rem/rem0cmp.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/rem/rem0rec.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0ins.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0mysql.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0purge.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0row.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0sel.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0uins.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0umod.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0undo.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/row/row0upd.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/sync/sync0rw.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/sync/sync0sync.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/trx/trx0purge.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/trx/trx0rec.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/trx/trx0sys.c:
  < 4 GB rows, doublewrite, hang fixes
innobase/srv/srv0srv.c:
  Support raw disk partitions as data files
innobase/srv/srv0start.c:
  Support raw disk partitions as data files
innobase/include/srv0srv.h:
  Support raw disk partitions as data files

innobase/buf/buf0rea.c

@@ -49,7 +49,9 @@ ulint
 buf_read_page_low(
 /*==============*/
 			/* out: 1 if a read request was queued, 0 if the page
-			already resided in buf_pool */
+			already resided in buf_pool or if the page is in
+			the doublewrite buffer blocks in which case it is never
+			read into the pool */
 	ibool	sync,	/* in: TRUE if synchronous aio is desired */
 	ulint	mode,	/* in: BUF_READ_IBUF_PAGES_ONLY, ...,
 			ORed to OS_AIO_SIMULATED_WAKE_LATER (see below
@@ -63,6 +65,16 @@ buf_read_page_low(
 	wake_later = mode & OS_AIO_SIMULATED_WAKE_LATER;
 	mode = mode & ~OS_AIO_SIMULATED_WAKE_LATER;
 	
+	if (trx_doublewrite && space == TRX_SYS_SPACE
+		&& (   (offset >= trx_doublewrite->block1
+		        && offset < trx_doublewrite->block1
+		     		+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE)
+		    || (offset >= trx_doublewrite->block2
+		        && offset < trx_doublewrite->block2
+		     		+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE))) {
+		return(0);
+	}
+
 #ifdef UNIV_LOG_DEBUG
 	if (space % 2 == 1) {
 		/* We are updating a replicate space while holding the