Update. cvs/libc-ud-970930

1997-09-30 18:03  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules: Undo last change.
	* csu/Makefile: Define before-compile at the right place.

	* aclocal.m4: Remove a.out file created by assembler test.

	* set-init.c: Find set-hooks.h using <...>.

	Update to db 2.3.10.
	* db2/Makefile: Update.
	* db2/db.h: Likewise.
	* db2/db_185.h: Likewise.
	* db2/db_int.h: Likewise.
	* db2/btree/bt_close.c: Likewise.
	* db2/btree/bt_conv.c: Likewise.
	* db2/btree/bt_cursor.c: Likewise.
	* db2/btree/bt_put.c: Likewise.
	* db2/btree/bt_rec.c: Likewise.
	* db2/btree/bt_recno.c: Likewise.
	* db2/btree/btree.src: Likewise.
	* db2/btree/btree_auto.c: Likewise.
	* db2/clib/getlong.c: Likewise.
	* db2/db/db.c: Likewise.
	* db2/db/db_auto.c: Likewise.
	* db2/db/db_conv.c: Likewise.
	* db2/db/db_pr.c: Likewise.
	* db2/db/db_ret.c: Likewise.
	* db2/db/db_thread.c: Likewise.
	* db2/hash/hash.c: Likewise.
	* db2/hash/hash_auto.c: Likewise.
	* db2/hash/hash_conv.c: Likewise.
	* db2/hash/hash_dup.c: Likewise.
	* db2/hash/hash_func.c: Likewise.
	* db2/hash/hash_page.c: Likewise.
	* db2/hash/hash_rec.c: Likewise.
	* db2/include/btree.h: Likewise.
	* db2/include/btree_ext.h: Likewise.
	* db2/include/db.h.src: Likewise.
	* db2/include/db_185.h.src: Likewise.
	* db2/include/db_cxx.h: Likewise.
	* db2/include/db_ext.h: Likewise.
	* db2/include/db_int.h.src: Likewise.
	* db2/include/db_page.h: Likewise.
	* db2/include/db_shash.h: Likewise.
	* db2/include/lock.h: Likewise.
	* db2/include/log.h: Likewise.
	* db2/include/log_ext.h: Likewise.
	* db2/include/mp.h: Likewise.
	* db2/include/shqueue.h: Likewise.
	* db2/include/txn.h: Likewise.
	* db2/lock/lock.c: Likewise.
	* db2/lock/lock_deadlock.c: Likewise.
	* db2/log/log.c: Likewise.
	* db2/log/log_archive.c: Likewise.
	* db2/log/log_auto.c: Likewise.
	* db2/log/log_get.c: Likewise.
	* db2/log/log_put.c: Likewise.
	* db2/log/log_register.c: Likewise.
	* db2/mp/mp_bh.c: Likewise.
	* db2/mp/mp_fget.c: Likewise.
	* db2/mp/mp_fopen.c: Likewise.
	* db2/mp/mp_fput.c: Likewise.
	* db2/mp/mp_fset.c: Likewise.
	* db2/mp/mp_open.c: Likewise.
	* db2/mutex/mutex.c: Likewise.
	* db2/os/db_os_dir.c: Likewise.
	* db2/progs/db_checkpoint/db_checkpoint.c: Likewise.
	* db2/progs/db_deadlock/db_deadlock.c: Likewise.
	* db2/progs/db_dump185/db_dump185.c: Likewise.
	* db2/progs/db_load/db_load.c: Likewise.
	* db2/progs/db_recover/db_recover.c: Likewise.
	* db2/txn/txn.c: Likewise.
	* db2/txn/txn_auto.c: Likewise.

	* elf/link.h: Define struct libname_list outside struct link_map
	to not confuse C++ compilers.

	* include/features.h: Recognize _XOPEN_SOURCE == 500 and set
	__USE_UNIX98.
	* manual/creature.texi: Explain this.

	* libc.map: Add new functions.

	* libio/Makefile (routines): Add fseeko and ftello.
	* libio/ftello.c: New file.
	* libio/fseeko.c: New file.
	* libio/stdio.h: Add prototypes for new functions.
	* manual/stdio.texi: Document fseeko and ftello.

	* posix/Makefile (routines): Add pread and pwrite.
	* sysdeps/posix/pread.c: New file.
	* sysdeps/posix/pwrite.c: New file.
	* sysdeps/stub/pread.c: New file.
	* sysdeps/stub/pwrite.c: New file.
	* posix/unistd.h: Add prototypes for pread and pwrite.
	Pretty print header.
	Define gid_t, uid_t, off_t, pid_t if __USE_UNIX98.
	Declare ctermid and cuserid if __USE_UNIX98.
	(swab): Change to take void * arguments.
	* string/swab.c: Change parameter to void *.
	* posix/sys/types: Define gid_t, uid_t, off_t, pid_t only if not
	already happened.
	* manual/llio.texi: Document pread and pwrite.

	* string/strings.h: Don't simply include string.h.  Define BSD
	functions according to Unix98.
	* stdlib/tst-strtol.c: Include <string.h> not <strings.h>.
	* sunrpc/clnt_simp.c: Likewise.

	* malloc/Makefile (aux): Add set-freeres.
	* malloc/mtrace.c: Define function release_libc_mem which calls the
	__libc_subfreeres handler.
	(mtrace): Register release_libc_mem.
	* malloc/set-freeres.c: New file.

	* intl/dcgettext.c: Define free_mem function and add to
	__libc_subfreeres list.
	* intl/finddomain.c: Likewise.
	* intl/gettextP.h (struct loaded_domain): Add new fields use_mmap
	and mmap_size.  Add prototype for _nl_unloaded_domain.
	* intl/loadmsgcat.c: Define new function _nl_unload_domain.
	(_nl_load_domain): Store informaiton about mmap use and file size.
	* intl/localealias.c (read_alias_file): Optimize locale alias file
	reading by avoid frequen mallocs.
	Define free_mem function and add to __libc_subfreeres list.

	* locale/localeinfo.h: Make a difference between MAX_USAGE_COUNT and
	undeletable.
	Add prototype for _nl_unload_locale.
	* locale/C-collate: Mark data as undeletable by using UNDELETABLE.
	* locale/C-ctype: Likewise.
	* locale/C-messages: Likewise.
	* locale/C-monetary: Likewise.
	* locale/C-numeric: Likewise.
	* locale/C-time: Likewise.
	* locale/findlocale.c (_nl_find_locale, _nl_remove_locale): Handle
	MAX_USAGE_COUNT and UNDELETABLE.
	(free_mem): New function.  Add it to __libc_subfreeres list.
	* locale/loadlocale.c: Define _nl_unload_locale function.

	* misc/hsearch.c: Register hdestroy in __libc_subfreeres list.

	* stdlib/fmtmsg.c (addseverity): Handle illegal severity arguments
	correctly
	Define free_mem function and add to __libc_subfreeres list.

	* locale/programs/localedef.c (options): short form os verbose is v.
	Reported by Andreas Jaeger.

	* misc/sys/select.h: Define pselect only is __USE_POSIX since this
	header is used in some others as well for historical reasons.

	* resolv/resolv.h: Include <netinet/in.h> to make self-contained.

	* string/bits/string2.h: Add missing braces and optimize strcmp a
	bit more.
	* sysdeps/i386/i486/bits/string.h: Likewise.

	* sunrpc/rpc/auth_des.h: Include rpc/auth.h to be self-contained.
	Pretty print.

	* sysdeps/mach/hurd/cthreads.c: Add copyright text.

	* sysdeps/unix/sysv/linux/syscalls.list: Correct prctl entry.

	* sysdeps/unix/sysv/linux/sys/mman.h: Get definition of size_t.

	* time/time.h: Pretty print.

1997-09-29  Paul Eggert  <eggert@twinsun.com>

	* time/strftime.c: Synchronize with GNU Emacs strftime.c.
	(HAVE_MEMCPY): Define if emacs is defined and HAVE_BCOPY isn't.
	(gmtime_r, localtime_r): Undef before defining.
	(iso_week_days): Use __inline__, not inline.

1997-09-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/bits/mathinline.h: Rename exp2{,l,f} to
	__ieee754_exp2{,l,f}.
	* sysdeps/m68k/fpu/s_exp2.c: Likewise.
	* sysdeps/m68k/fpu/s_exp2l.c: Likewise.
	* sysdeps/m68k/fpu/s_exp2f.c: Likewise.

1997-09-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/soinit.c (__EH_FRAME_BEGIN__): Don't make the .eh_frame
	section read-only, it contains relocations.
	* elf/sofini.c (__FRAME_END__): Likewise.

1997-09-29 03:08  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/i486/bits/string.h [__PIC__] (__strspn_cg, __strcspn_cg,
	__strpbrk_cg, __strstr_cg): Optimize even more.  No spill register
	needed.  Patch by NIIBE Yutaka <gniibe@mri.co.jp>.

1997-09-28 08:27  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_call.c (__do_niscall2): Fix return code, add missing
	  break in switch case.

	* nis/nis_mkdir.c: Fix return codes to match Solaris version.
	* nis/nis_rmdir.c: Likewise.

	* nis/rpcsvc/yp_prot.h: Rename struct keydat to struct keydat_t
	for C++.

1997-09-28 04:32  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Fix typo.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1997-09-25 20:14  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/unix/sysv/linux/scsi/sg.h: New file.
	* sysdeps/unix/sysv/linux/Makefile: Install <scsi/sg.h>.

6 files changed, 110 insertions, 63 deletions

diff --git a/db2/mp/mp_bh.c b/db2/mp/mp_bh.c
index 3d0d053b5f..fb6bc96ae7 100644
--- a/db2/mp/mp_bh.c
+++ b/db2/mp/mp_bh.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_bh.c	10.15 (Sleepycat) 8/29/97";
+static const char sccsid[] = "@(#)mp_bh.c	10.16 (Sleepycat) 9/23/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -55,7 +55,7 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep)
 	 * If we find a descriptor on the file that's not open for writing, we
 	 * try and upgrade it to make it writeable.
 	 */
-	LOCKHANDLE(dbmp, &dbmp->mutex);
+	LOCKHANDLE(dbmp, dbmp->mutexp);
 	for (dbmfp = TAILQ_FIRST(&dbmp->dbmfq);
 	    dbmfp != NULL; dbmfp = TAILQ_NEXT(dbmfp, q))
 		if (dbmfp->mfp == mfp) {
@@ -64,7 +64,7 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep)
 				return (0);
 			break;
 		}
-	UNLOCKHANDLE(dbmp, &dbmp->mutex);
+	UNLOCKHANDLE(dbmp, dbmp->mutexp);
 	if (dbmfp != NULL)
 		goto found;
 
@@ -75,12 +75,12 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep)
 	 * nothing we can do.
 	 */
 	if (mfp->ftype != 0) {
-		LOCKHANDLE(dbmp, &dbmp->mutex);
+		LOCKHANDLE(dbmp, dbmp->mutexp);
 		for (mpreg = LIST_FIRST(&dbmp->dbregq);
 		    mpreg != NULL; mpreg = LIST_NEXT(mpreg, q))
 			if (mpreg->ftype == mfp->ftype)
 				break;
-		UNLOCKHANDLE(dbmp, &dbmp->mutex);
+		UNLOCKHANDLE(dbmp, dbmp->mutexp);
 		if (mpreg == NULL)
 			return (0);
 	}
@@ -135,19 +135,19 @@ __memp_pgread(dbmfp, bhp, can_create)
 	 * Seek to the page location.
 	 */
 	ret = 0;
-	LOCKHANDLE(dbmp, &dbmfp->mutex);
+	LOCKHANDLE(dbmp, dbmfp->mutexp);
 	if (dbmfp->fd == -1 || (ret =
 	    __db_lseek(dbmfp->fd, pagesize, bhp->pgno, 0, SEEK_SET)) != 0) {
 		if (!can_create) {
 			if (dbmfp->fd == -1)
 				ret = EINVAL;
-			UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+			UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 			__db_err(dbmp->dbenv,
 			    "%s: page %lu doesn't exist, create flag not set",
 			    dbmfp->path, (u_long)bhp->pgno);
 			goto err;
 		}
-		UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+		UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 
 		/* Clear any uninitialized data. */
 		memset(bhp->buf, 0, pagesize);
@@ -159,7 +159,7 @@ __memp_pgread(dbmfp, bhp, can_create)
 	 * any valid data is preserved.
 	 */
 	ret = __db_read(dbmfp->fd, bhp->buf, pagesize, &nr);
-	UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+	UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 	if (ret != 0)
 		goto err;
 
@@ -268,10 +268,10 @@ __memp_pgwrite(dbmfp, bhp, restartp, wrotep)
 	}
 
 	/* Temporary files may not yet have been created. */
-	LOCKHANDLE(dbmp, &dbmfp->mutex);
+	LOCKHANDLE(dbmp, dbmfp->mutexp);
 	if (dbmfp->fd == -1 && ((ret = __db_appname(dbenv, DB_APP_TMP,
 	    NULL, NULL, &dbmfp->fd, NULL)) != 0 || dbmfp->fd == -1)) {
-		UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+		UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 		__db_err(dbenv, "unable to create temporary backing file");
 		goto err;
 	}
@@ -282,7 +282,7 @@ __memp_pgwrite(dbmfp, bhp, restartp, wrotep)
 		fail = "seek";
 	else if ((ret = __db_write(dbmfp->fd, bhp->buf, pagesize, &nw)) != 0)
 		fail = "write";
-	UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+	UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 	if (ret != 0) {
 		/*
 		 * XXX
@@ -380,7 +380,7 @@ __memp_pg(dbmfp, bhp, is_pgin)
 	dbmp = dbmfp->dbmp;
 	mfp = dbmfp->mfp;
 
-	LOCKHANDLE(dbmp, &dbmp->mutex);
+	LOCKHANDLE(dbmp, dbmp->mutexp);
 
 	ftype = mfp->ftype;
 	for (mpreg = LIST_FIRST(&dbmp->dbregq);
@@ -394,7 +394,7 @@ __memp_pg(dbmfp, bhp, is_pgin)
 			dbt.data = ADDR(dbmp, mfp->pgcookie_off);
 			dbtp = &dbt;
 		}
-		UNLOCKHANDLE(dbmp, &dbmp->mutex);
+		UNLOCKHANDLE(dbmp, dbmp->mutexp);
 
 		if (is_pgin) {
 			if (mpreg->pgin != NULL && (ret =
@@ -408,11 +408,11 @@ __memp_pg(dbmfp, bhp, is_pgin)
 	}
 
 	if (mpreg == NULL)
-		UNLOCKHANDLE(dbmp, &dbmp->mutex);
+		UNLOCKHANDLE(dbmp, dbmp->mutexp);
 
 	return (0);
 
-err:	UNLOCKHANDLE(dbmp, &dbmp->mutex);
+err:	UNLOCKHANDLE(dbmp, dbmp->mutexp);
 	__db_err(dbmp->dbenv, "%s: %s failed for page %lu",
 	    dbmfp->path, is_pgin ? "pgin" : "pgout", (u_long)bhp->pgno);
 	return (ret);
diff --git a/db2/mp/mp_fget.c b/db2/mp/mp_fget.c
index 418802a3b9..a0364e92c3 100644
--- a/db2/mp/mp_fget.c
+++ b/db2/mp/mp_fget.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_fget.c	10.22 (Sleepycat) 8/19/97";
+static const char sccsid[] = "@(#)mp_fget.c	10.25 (Sleepycat) 9/23/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -35,7 +35,7 @@ int
 memp_fget(dbmfp, pgnoaddr, flags, addrp)
 	DB_MPOOLFILE *dbmfp;
 	db_pgno_t *pgnoaddr;
-	u_long flags;
+	int flags;
 	void *addrp;
 {
 	BH *bhp, *tbhp;
@@ -293,7 +293,7 @@ found:		/* Increment the reference count. */
 			__db_err(dbmp->dbenv,
 			    "%s: too many references to page %lu",
 			    dbmfp->path, bhp->pgno);
-			ret = EAGAIN;
+			ret = EINVAL;
 			goto err;
 		}
 		++bhp->ref;
@@ -337,9 +337,9 @@ found:		/* Increment the reference count. */
 		++mfp->stat.st_cache_hit;
 	}
 
-mapret:	LOCKHANDLE(dbmp, &dbmfp->mutex);
+mapret:	LOCKHANDLE(dbmp, dbmfp->mutexp);
 	++dbmfp->pinref;
-	UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+	UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 
 	if (0) {
 err:		/*
diff --git a/db2/mp/mp_fopen.c b/db2/mp/mp_fopen.c
index 1a770bfdf0..5ab807701c 100644
--- a/db2/mp/mp_fopen.c
+++ b/db2/mp/mp_fopen.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_fopen.c	10.25 (Sleepycat) 8/27/97";
+static const char sccsid[] = "@(#)mp_fopen.c	10.27 (Sleepycat) 9/23/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -28,8 +28,8 @@ static const char sccsid[] = "@(#)mp_fopen.c	10.25 (Sleepycat) 8/27/97";
 #include "common_ext.h"
 
 static int __memp_mf_close __P((DB_MPOOL *, DB_MPOOLFILE *));
-static int __memp_mf_open __P((DB_MPOOL *, DB_MPOOLFILE *,
-    int, int, size_t, int, DBT *, u_int8_t *, int, MPOOLFILE **));
+static int __memp_mf_open __P((DB_MPOOL *,
+    DB_MPOOLFILE *, int, size_t, int, DBT *, u_int8_t *, int, MPOOLFILE **));
 
 /*
  * memp_fopen --
@@ -97,7 +97,6 @@ __memp_fopen(dbmp, path,
 		    path == NULL ? TEMPORARY : path, strerror(ENOMEM));
 		return (ENOMEM);
 	}
-	LOCKINIT(dbmp, &dbmfp->mutex);
 	dbmfp->dbmp = dbmp;
 	dbmfp->fd = -1;
 	if (LF_ISSET(DB_RDONLY))
@@ -141,14 +140,21 @@ __memp_fopen(dbmp, path,
 		}
 	}
 
-	/* Find/allocate the shared file object. */
+	/*
+	 * Find/allocate the shared file objects.  This includes allocating
+	 * space for the per-process thread lock.
+	 */
 	if (needlock)
 		LOCKREGION(dbmp);
-	ret = __memp_mf_open(dbmp, dbmfp, ftype,
-	    F_ISSET(dbmfp, MP_READONLY), pagesize,
+	ret = __memp_mf_open(dbmp, dbmfp, ftype, pagesize,
 	    lsn_offset, pgcookie, fileid, F_ISSET(dbmfp, MP_PATH_TEMP), &mfp);
+	if (ret == 0 &&
+	    F_ISSET(dbmp, MP_LOCKHANDLE) && (ret =
+	    __memp_ralloc(dbmp, sizeof(db_mutex_t), NULL, &dbmfp->mutexp)) == 0)
+		LOCKINIT(dbmp, dbmfp->mutexp);
 	if (needlock)
 		UNLOCKREGION(dbmp);
+
 	if (ret != 0)
 		goto err;
 
@@ -156,11 +162,11 @@ __memp_fopen(dbmp, path,
 
 	/*
 	 * If a file:
-	 *
 	 *	+ is read-only
+	 *	+ isn't temporary
 	 *	+ doesn't require any pgin/pgout support
-	 *	+ is less than mp_mmapsize bytes in size.
-	 *	+ and the DB_NOMMAP flag wasn't set
+	 *	+ the DB_NOMMAP flag wasn't set
+	 *	+ and is less than mp_mmapsize bytes in size
 	 *
 	 * we can mmap it instead of reading/writing buffers.  Don't do error
 	 * checking based on the mmap call failure.  We want to do normal I/O
@@ -176,11 +182,20 @@ __memp_fopen(dbmp, path,
 	 * flatly impossible.  Hope that mmap fails if the file is too large.
 	 */
 #define	DB_MAXMMAPSIZE	(10 * 1024 * 1024)	/* 10 Mb. */
+	if (mfp->can_mmap) {
+		if (!F_ISSET(dbmfp, MP_READONLY))
+			mfp->can_mmap = 0;
+		if (path == NULL)
+			mfp->can_mmap = 0;
+		if (ftype != 0)
+			mfp->can_mmap = 0;
+		if (LF_ISSET(DB_NOMMAP))
+			mfp->can_mmap = 0;
+		if (size > (dbenv == NULL || dbenv->mp_mmapsize == 0 ?
+		    DB_MAXMMAPSIZE : (off_t)dbenv->mp_mmapsize))
+			mfp->can_mmap = 0;
+	}
 	dbmfp->addr = NULL;
-	mfp->can_mmap = F_ISSET(dbmfp, MP_READONLY) &&
-	    ftype == 0 && !LF_ISSET(DB_NOMMAP) && path != NULL &&
-	    size <= (dbenv == NULL || dbenv->mp_mmapsize == 0 ?
-	    DB_MAXMMAPSIZE : (off_t)dbenv->mp_mmapsize);
 	if (mfp->can_mmap) {
 		dbmfp->len = size;
 		if (__db_mmap(dbmfp->fd, dbmfp->len, 1, 1, &dbmfp->addr) != 0) {
@@ -189,14 +204,18 @@ __memp_fopen(dbmp, path,
 		}
 	}
 
-	LOCKHANDLE(dbmp, &dbmp->mutex);
+	LOCKHANDLE(dbmp, dbmp->mutexp);
 	TAILQ_INSERT_TAIL(&dbmp->dbmfq, dbmfp, q);
-	UNLOCKHANDLE(dbmp, &dbmp->mutex);
+	UNLOCKHANDLE(dbmp, dbmp->mutexp);
 
 	*retp = dbmfp;
 	return (0);
 
-err:	if (F_ISSET(dbmfp, MP_PATH_ALLOC))
+err:	/*
+	 * Note that we do not have to free the thread mutex, because we
+	 * never get to here after we have successfully allocated it.
+	 */
+	if (F_ISSET(dbmfp, MP_PATH_ALLOC))
 		FREES(dbmfp->path);
 	if (dbmfp->fd != -1)
 		(void)__db_close(dbmfp->fd);
@@ -211,10 +230,10 @@ err:	if (F_ISSET(dbmfp, MP_PATH_ALLOC))
  */
 static int
 __memp_mf_open(dbmp, dbmfp,
-    ftype, readonly, pagesize, lsn_offset, pgcookie, fileid, istemp, retp)
+    ftype, pagesize, lsn_offset, pgcookie, fileid, istemp, retp)
 	DB_MPOOL *dbmp;
 	DB_MPOOLFILE *dbmfp;
-	int ftype, readonly, lsn_offset, istemp;
+	int ftype, lsn_offset, istemp;
 	size_t pagesize;
 	DBT *pgcookie;
 	u_int8_t *fileid;
@@ -255,13 +274,8 @@ __memp_mf_open(dbmp, dbmfp,
 				mfp = NULL;
 				goto ret1;
 			}
-			/*
-			 * Found it: increment the reference count and update
-			 * the mmap-able status.
-			 */
+			/* Found it: increment the reference count. */
 			++mfp->ref;
-			if (!readonly)
-				mfp->can_mmap = 0;
 			goto ret1;
 		}
 
@@ -273,6 +287,7 @@ alloc:	if ((ret = __memp_ralloc(dbmp, sizeof(MPOOLFILE), NULL, &mfp)) != 0)
 	memset(mfp, 0, sizeof(MPOOLFILE));
 	mfp->ref = 1;
 	mfp->ftype = ftype;
+	mfp->can_mmap = 1;
 	mfp->lsn_off = lsn_offset;
 	mfp->stat.st_pagesize = pagesize;
 
@@ -343,9 +358,9 @@ memp_fclose(dbmfp)
 		    dbmfp->path, (u_long)dbmfp->pinref);
 
 	/* Remove the DB_MPOOLFILE structure from the list. */
-	LOCKHANDLE(dbmp, &dbmp->mutex);
+	LOCKHANDLE(dbmp, dbmp->mutexp);
 	TAILQ_REMOVE(&dbmp->dbmfq, dbmfp, q);
-	UNLOCKHANDLE(dbmp, &dbmp->mutex);
+	UNLOCKHANDLE(dbmp, dbmp->mutexp);
 
 	/* Close the underlying MPOOLFILE. */
 	(void)__memp_mf_close(dbmp, dbmfp);
@@ -362,11 +377,16 @@ memp_fclose(dbmfp)
 			t_ret = ret;
 	}
 
-	/* Potentially allocated path. */
+	/* Free memory. */
 	if (F_ISSET(dbmfp, MP_PATH_ALLOC))
 		FREES(dbmfp->path);
+	if (dbmfp->mutexp != NULL) {
+		LOCKREGION(dbmp);
+		__db_shalloc_free(dbmp->addr, dbmfp->mutexp);
+		UNLOCKREGION(dbmp);
+	}
 
-	/* Free the DB_MPOOLFILE structure. */
+	/* Discard the DB_MPOOLFILE structure. */
 	FREE(dbmfp, sizeof(DB_MPOOLFILE));
 
 	return (ret);
diff --git a/db2/mp/mp_fput.c b/db2/mp/mp_fput.c
index 5fac8ae76b..9ea7cd9d0d 100644
--- a/db2/mp/mp_fput.c
+++ b/db2/mp/mp_fput.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_fput.c	10.10 (Sleepycat) 7/20/97";
+static const char sccsid[] = "@(#)mp_fput.c	10.12 (Sleepycat) 9/23/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -31,7 +31,7 @@ int
 memp_fput(dbmfp, pgaddr, flags)
 	DB_MPOOLFILE *dbmfp;
 	void *pgaddr;
-	u_long flags;
+	int flags;
 {
 	BH *bhp;
 	DB_MPOOL *dbmp;
@@ -58,14 +58,14 @@ memp_fput(dbmfp, pgaddr, flags)
 	}
 
 	/* Decrement the pinned reference count. */
-	LOCKHANDLE(dbmp, &dbmfp->mutex);
+	LOCKHANDLE(dbmp, dbmfp->mutexp);
 	if (dbmfp->pinref == 0)
 		__db_err(dbmp->dbenv,
 		    "%s: put: more blocks returned than retrieved",
 		    dbmfp->path);
 	else
 		--dbmfp->pinref;
-	UNLOCKHANDLE(dbmp, &dbmfp->mutex);
+	UNLOCKHANDLE(dbmp, dbmfp->mutexp);
 
 	/*
 	 * If we're mapping the file, there's nothing to do.  Because we can
diff --git a/db2/mp/mp_fset.c b/db2/mp/mp_fset.c
index 588085a358..a3a3dcef9c 100644
--- a/db2/mp/mp_fset.c
+++ b/db2/mp/mp_fset.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_fset.c	10.8 (Sleepycat) 8/19/97";
+static const char sccsid[] = "@(#)mp_fset.c	10.9 (Sleepycat) 9/20/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -30,7 +30,7 @@ int
 memp_fset(dbmfp, pgaddr, flags)
 	DB_MPOOLFILE *dbmfp;
 	void *pgaddr;
-	u_long flags;
+	int flags;
 {
 	BH *bhp;
 	DB_MPOOL *dbmp;
diff --git a/db2/mp/mp_open.c b/db2/mp/mp_open.c
index 257ce1b9e9..f622b1ed26 100644
--- a/db2/mp/mp_open.c
+++ b/db2/mp/mp_open.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_open.c	10.12 (Sleepycat) 7/6/97";
+static const char sccsid[] = "@(#)mp_open.c	10.13 (Sleepycat) 9/23/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -56,7 +56,6 @@ memp_open(path, flags, mode, dbenv, retp)
 	/* Create and initialize the DB_MPOOL structure. */
 	if ((dbmp = (DB_MPOOL *)calloc(1, sizeof(DB_MPOOL))) == NULL)
 		return (ENOMEM);
-	LOCKINIT(dbmp, &dbmp->mutex);
 	LIST_INIT(&dbmp->dbregq);
 	TAILQ_INIT(&dbmp->dbmfq);
 
@@ -68,6 +67,17 @@ memp_open(path, flags, mode, dbenv, retp)
 		F_SET(dbmp, MP_ISPRIVATE);
 
 	/*
+	 * XXX
+	 * HP-UX won't permit mutexes to live in anything but shared memory.
+	 * So, we have to instantiate the shared mpool region file on that
+	 * architecture, regardless.  If this turns out to be a performance
+	 * problem, we could probably use anonymous memory instead.
+	 */
+#if defined(__hppa)
+	F_CLR(dbmp, MP_ISPRIVATE);
+#endif
+
+	/*
 	 * Map in the region.  We do locking regardless, as portions of it are
 	 * implemented in common code (if we put the region in a file, that is).
 	 */
@@ -79,12 +89,22 @@ memp_open(path, flags, mode, dbenv, retp)
 	/*
 	 * If there's concurrent access, then we have to lock the region.
 	 * If it's threaded, then we have to lock both the handles and the
-	 * region.
+	 * region, and we need to allocate a mutex for that purpose.
 	 */
 	if (!F_ISSET(dbmp, MP_ISPRIVATE))
 		F_SET(dbmp, MP_LOCKREGION);
-	if (LF_ISSET(DB_THREAD))
+	if (LF_ISSET(DB_THREAD)) {
 		F_SET(dbmp, MP_LOCKHANDLE | MP_LOCKREGION);
+		LOCKREGION(dbmp);
+		ret = __memp_ralloc(dbmp,
+		    sizeof(db_mutex_t), NULL, &dbmp->mutexp);
+		UNLOCKREGION(dbmp);
+		if (ret != 0) {
+			(void)memp_close(dbmp);
+			goto err;
+		}
+		LOCKINIT(dbmp, dbmp->mutexp);
+	}
 
 	*retp = dbmp;
 	return (0);
@@ -119,11 +139,18 @@ memp_close(dbmp)
 		if ((t_ret = memp_fclose(dbmfp)) != 0 && ret == 0)
 			ret = t_ret;
 
+	/* Discard thread mutex. */
+	if (F_ISSET(dbmp, MP_LOCKHANDLE)) {
+		LOCKREGION(dbmp);
+		__db_shalloc_free(dbmp->addr, dbmp->mutexp);
+		UNLOCKREGION(dbmp);
+	}
+
 	/* Close the region. */
 	if ((t_ret = __memp_rclose(dbmp)) && ret == 0)
 		ret = t_ret;
 
-	/* Free the structure. */
+	/* Discard the structure. */
 	FREE(dbmp, sizeof(DB_MPOOL));
 
 	return (ret);
@@ -168,9 +195,9 @@ memp_register(dbmp, ftype, pgin, pgout)
 	 * the most recent registry in the case of multiple entries, so
 	 * we don't have to check for multiple registries.
 	 */
-	LOCKHANDLE(dbmp, &dbmp->mutex);
+	LOCKHANDLE(dbmp, dbmp->mutexp);
 	LIST_INSERT_HEAD(&dbmp->dbregq, mpr, q);
-	UNLOCKHANDLE(dbmp, &dbmp->mutex);
+	UNLOCKHANDLE(dbmp, dbmp->mutexp);
 
 	return (0);
 }