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| author | Torvald Riegel <triegel@redhat.com> | 2014-05-22 16:00:12 +0200 |
|---|---|---|
| committer | Torvald Riegel <triegel@redhat.com> | 2017-01-10 11:50:17 +0100 |
| commit | cc25c8b4c1196a8c29e9a45b1e096b99a87b7f8c (patch) | |
| tree | 52c5358896bc1ce9ad2081f179e72a1edac5fa6f /nptl/Makefile | |
| parent | fbb31e20bc41957c5f3d6550f0178590cf473043 (diff) | |
| download | glibc-cc25c8b4c1196a8c29e9a45b1e096b99a87b7f8c.zip glibc-cc25c8b4c1196a8c29e9a45b1e096b99a87b7f8c.tar.gz glibc-cc25c8b4c1196a8c29e9a45b1e096b99a87b7f8c.tar.bz2 | |
New pthread rwlock that is more scalable.
This replaces the pthread rwlock with a new implementation that uses a
more scalable algorithm (primarily through not using a critical section
anymore to make state changes). The fast path for rdlock acquisition and
release is now basically a single atomic read-modify write or CAS and a few
branches. See nptl/pthread_rwlock_common.c for details.
* nptl/DESIGN-rwlock.txt: Remove.
* nptl/lowlevelrwlock.sym: Remove.
* nptl/Makefile: Add new tests.
* nptl/pthread_rwlock_common.c: New file. Contains the new rwlock.
* nptl/pthreadP.h (PTHREAD_RWLOCK_PREFER_READER_P): Remove.
(PTHREAD_RWLOCK_WRPHASE, PTHREAD_RWLOCK_WRLOCKED,
PTHREAD_RWLOCK_RWAITING, PTHREAD_RWLOCK_READER_SHIFT,
PTHREAD_RWLOCK_READER_OVERFLOW, PTHREAD_RWLOCK_WRHANDOVER,
PTHREAD_RWLOCK_FUTEX_USED): New.
* nptl/pthread_rwlock_init.c (__pthread_rwlock_init): Adapt to new
implementation.
* nptl/pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock_slow): Remove.
(__pthread_rwlock_rdlock): Adapt.
* nptl/pthread_rwlock_timedrdlock.c
(pthread_rwlock_timedrdlock): Adapt.
* nptl/pthread_rwlock_timedwrlock.c
(pthread_rwlock_timedwrlock): Adapt.
* nptl/pthread_rwlock_trywrlock.c (pthread_rwlock_trywrlock): Adapt.
* nptl/pthread_rwlock_tryrdlock.c (pthread_rwlock_tryrdlock): Adapt.
* nptl/pthread_rwlock_unlock.c (pthread_rwlock_unlock): Adapt.
* nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock_slow): Remove.
(__pthread_rwlock_wrlock): Adapt.
* nptl/tst-rwlock10.c: Adapt.
* nptl/tst-rwlock11.c: Adapt.
* nptl/tst-rwlock17.c: New file.
* nptl/tst-rwlock18.c: New file.
* nptl/tst-rwlock19.c: New file.
* nptl/tst-rwlock2b.c: New file.
* nptl/tst-rwlock8.c: Adapt.
* nptl/tst-rwlock9.c: Adapt.
* sysdeps/aarch64/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/arm/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/hppa/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/ia64/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/m68k/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/microblaze/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/mips/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/nios2/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/s390/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/sh/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/sparc/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/tile/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h
(pthread_rwlock_t): Adapt.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
(pthread_rwlock_t): Adapt.
* sysdeps/x86/bits/pthreadtypes.h (pthread_rwlock_t): Adapt.
* nptl/nptl-printers.py (): Adapt.
* nptl/nptl_lock_constants.pysym: Adapt.
* nptl/test-rwlock-printers.py: Adapt.
* nptl/test-rwlockattr-printers.c: Adapt.
* nptl/test-rwlockattr-printers.py: Adapt.
Diffstat (limited to 'nptl/Makefile')
| -rw-r--r-- | nptl/Makefile | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/nptl/Makefile b/nptl/Makefile index 36dbdbb..9d5738f 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -237,10 +237,11 @@ tests = tst-typesizes \ tst-robust6 tst-robust7 tst-robust8 tst-robust9 \ tst-robustpi1 tst-robustpi2 tst-robustpi3 tst-robustpi4 tst-robustpi5 \ tst-robustpi6 tst-robustpi7 tst-robustpi8 tst-robustpi9 \ - tst-rwlock1 tst-rwlock2 tst-rwlock2a tst-rwlock3 tst-rwlock4 \ - tst-rwlock5 tst-rwlock6 tst-rwlock7 tst-rwlock8 tst-rwlock9 \ - tst-rwlock10 tst-rwlock11 tst-rwlock12 tst-rwlock13 tst-rwlock14 \ - tst-rwlock15 tst-rwlock16 \ + tst-rwlock1 tst-rwlock2 tst-rwlock2a tst-rwlock2b tst-rwlock3 \ + tst-rwlock4 tst-rwlock5 tst-rwlock6 tst-rwlock7 tst-rwlock8 \ + tst-rwlock9 tst-rwlock10 tst-rwlock11 tst-rwlock12 tst-rwlock13 \ + tst-rwlock14 tst-rwlock15 tst-rwlock16 tst-rwlock17 tst-rwlock18 \ + tst-rwlock19 \ tst-once1 tst-once2 tst-once3 tst-once4 tst-once5 \ tst-key1 tst-key2 tst-key3 tst-key4 \ tst-sem1 tst-sem2 tst-sem3 tst-sem4 tst-sem5 tst-sem6 tst-sem7 \ @@ -306,7 +307,7 @@ test-xfail-tst-once5 = yes # Files which must not be linked with libpthread. tests-nolibpthread = tst-unload -gen-as-const-headers = pthread-errnos.sym lowlevelrwlock.sym \ +gen-as-const-headers = pthread-errnos.sym \ unwindbuf.sym \ lowlevelrobustlock.sym pthread-pi-defines.sym |