Update.

2000-07-27  Jes Sorensen  <jes@linuxcare.com>

	* linuxthreads/sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add
	load of spin lock to prime the cache before the atomic compare and
	exchange operation (cmpxchg4). This avoids the spinning on the
	cmpxchg4 instruction and reduces movement of the cache line back
	and forth between the processors (explanation by Asis K. Mallick
	from Intel). This basically makes the implementation operate the
	same as the Linux kernel implementation.

	* linuxthreads/shlib-versions: Use GLIBC_2_2 for Linux/ia64.
	* linuxthreads/sysdeps/ia64/pspinlock.c: New file.

diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index e80114f..0335aa7 100644 (file)
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,16 @@
+2000-07-27  Jes Sorensen  <jes@linuxcare.com>
+
+       * linuxthreads/sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add
+       load of spin lock to prime the cache before the atomic compare and
+       exchange operation (cmpxchg4). This avoids the spinning on the
+       cmpxchg4 instruction and reduces movement of the cache line back
+       and forth between the processors (explanation by Asis K. Mallick
+       from Intel). This basically makes the implementation operate the
+       same as the Linux kernel implementation.
+
+       * linuxthreads/shlib-versions: Use GLIBC_2_2 for Linux/ia64.
+       * linuxthreads/sysdeps/ia64/pspinlock.c: New file.
+
 2000-08-03  Ulrich Drepper  <drepper@redhat.com>
 
        * pthread.c: Move definition of __pthread_set_own_extricate_if...