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| author | Torvald Riegel <triegel@redhat.com> | 2015-04-28 23:24:36 +0200 |
|---|---|---|
| committer | Torvald Riegel <triegel@redhat.com> | 2015-06-04 15:34:30 +0200 |
| commit | b634486d57a14b53f1cfcf739e41ddf826e51977 (patch) | |
| tree | 65ad6788da14adc8effdd9d1b4236ac24af710d7 /ChangeLog | |
| parent | 3c9c61febede148b79d8509e16588152d99b3774 (diff) | |
| download | glibc-b634486d57a14b53f1cfcf739e41ddf826e51977.tar.gz glibc-b634486d57a14b53f1cfcf739e41ddf826e51977.tar.xz glibc-b634486d57a14b53f1cfcf739e41ddf826e51977.zip | |
Fix missing wake-ups in pthread_rwlock_rdlock.
This adds wake-ups that would be missing if assuming that for a non-writer-preferring rwlock, if one thread has acquired a rdlock and does not release it, another thread will eventually acquire a rdlock too despite concurrent write lock acquisition attempts. BZ 14958 is about supporting this assumption. Strictly speaking, this isn't a valid test case, but nonetheless worth supporting (see comment 7 of BZ 14958).
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 423ccea936..cd25f446a6 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,19 @@ 2015-06-04 Torvald Riegel <triegel@redhat.com> + [BZ #14958] + * nptl/pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Add missing + wake-up. + (__pthread_rwlock_rdlock_slow): Likewise. + * nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock): + Likewise. + * nptl/pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock): + Likewise. + * nptl/pthread_rwlock_unlock.c (__pthread_rwlock_unlock): Add comments. + * nptl/tst-rwlock16.c: New file. + * nptl/Makefile (tests): Add new test. + +2015-06-04 Torvald Riegel <triegel@redhat.com> + [BZ #18324] * nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock): Add missing wake-up of readers. |