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| author | Ulrich Drepper <drepper@redhat.com> | 2001-05-24 23:38:52 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2001-05-24 23:38:52 +0000 |
| commit | 47e5d2a8b132c73bc0659baad25714326fb333c9 (patch) | |
| tree | 36c83a82b882e1d624374ac0956b8a870881ee52 /linuxthreads/ChangeLog | |
| parent | 65fa1dec4ec6d800ba9e91abe0e4ae8208b9905e (diff) | |
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Update.
2001-05-24 Ulrich Drepper <drepper@redhat.com>
* spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any
serious work try once whether the lock is uncontested.
Remove duplicate reading of __status before loop.
Change suggested by Hans Boehm <hans_boehm@hp.com>.
* spinlock.h (__pthread_trylock): Remove need for oldstatus variable.
(__pthread_alt_trylock): Likewise.
Diffstat (limited to 'linuxthreads/ChangeLog')
| -rw-r--r-- | linuxthreads/ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index 05ffaab5da..6282a60b8e 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -1,3 +1,13 @@ +2001-05-24 Ulrich Drepper <drepper@redhat.com> + + * spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any + serious work try once whether the lock is uncontested. + Remove duplicate reading of __status before loop. + Change suggested by Hans Boehm <hans_boehm@hp.com>. + + * spinlock.h (__pthread_trylock): Remove need for oldstatus variable. + (__pthread_alt_trylock): Likewise. + 2001-05-01 Kaz Kylheku <kaz@ashi.footprints.net> Memory barrier overhaul following line by line inspection. |