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efeca5dac6
glibc/sysdeps/unix/sysv/linux/alpha
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Torvald Riegel cc25c8b4c1 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.
2017-01-10 11:50:17 +01:00
..
alpha
alphaev6/fpu
alphaev67/fpu
bits New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
fpu
sys Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
a.out.h
adjtime.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
aio_cancel.c
arch-fork.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
brk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
c++-types.data
clone.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
configure
configure.ac
creat.c
dl-auxv.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-brk.S
dl-fxstatat64.c
dl-support.c
dl-sysdep.c
fraiseexcpt.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fstatfs64.c
fstatvfs64.c
fstatvfs.c
fxstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getclktck.c
getcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getdents64.c
getdents.c
gethostname.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getsysstats.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
glob.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ieee_get_fp_control.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ieee_set_fp_control.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Implies
internal_statvfs64.c
ioperm.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ipc_priv.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
kernel_sigaction.h
kernel_stat.h Allow [f]statfs64 to alias [f]statfs 2016-11-22 09:59:12 -08:00
kernel_sysinfo.h
kernel_termios.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ld.abilist ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libc.abilist New string function explicit_bzero (from OpenBSD). 2016-12-16 16:21:54 -05:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libm.abilist Add fromfp functions. 2016-12-31 00:40:59 +00:00
libnsl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libthread_db.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
localplt.data ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Consolidate Linux shmctl implementation 2016-12-28 20:31:05 -02:00
nldbl-abi.h
oldglob.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pipe.S
pt-vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rt_sigaction.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setfpucw.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
shlib-versions
sigaction.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sigprocmask.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sigsuspend.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sizes.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
statfs64.c
statvfs64.c
statvfs.c
swapcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscalls.list Use shmget syscall for linux implementation 2016-12-28 20:31:05 -02:00
sysconf.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
timer_create.c
timer_delete.c
timer_getoverr.c
timer_gettime.c
timer_settime.c
ucontext-offsets.sym
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00
vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wordexp.c
xstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xstatconv.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xstatconv.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00