Adhemerval Zanella 822662cf2a linux: Revert the use of sched_getaffinity on get_nproc (BZ #28310) ... The use of sched_getaffinity on get_nproc and sysconf (_SC_NPROCESSORS_ONLN) done in 903bc7dcc2 (BZ #27645) breaks the top command in common hypervisor configurations and also other monitoring tools. The main issue using sched_getaffinity changed the symbols semantic from system-wide scope of online CPUs to per-process one (which can be changed with kernel cpusets or book parameters in VM). This patch reverts mostly of the 903bc7dcc2, with the exceptions: * No more cached values and atomic updates, since they are inherent racy. * No /proc/cpuinfo fallback, since /proc/stat is already used and it would require to revert more arch-specific code. * The alloca is replace with a static buffer of 1024 bytes. So the implementation first consult the sysfs, and fallbacks to procfs. Checked on x86_64-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com> (cherry picked from commit 342298278e)		2021-10-01 18:19:45 +02:00
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alpha
arm
bsd	login: Hidden prototypes for _getpt, __ptsname_r, grantpt, unlockpt	2021-06-30 07:28:12 +02:00
i386
inet
mips
powerpc
sh
sysv/linux	linux: Revert the use of sched_getaffinity on get_nproc (BZ #28310)	2021-10-01 18:19:45 +02:00
x86_64
confstr.h
get_child_max.c
getlogin_r.c
getlogin.c
getpagesize.c
grantpt.c	login: Hidden prototypes for _getpt, __ptsname_r, grantpt, unlockpt	2021-06-30 07:28:12 +02:00
ifreq.c
Implies
make-syscalls.sh
Makefile
s-proto-cancel.S
s-proto.S
setxid.h
sockatmark.c
syscall-template.S
syscall.S
syscalls.list	misc: Add time64 alias for ioctl	2021-07-21 11:58:09 +02:00
sysdep.h	Linux: Explicitly disable cancellation checking in the dynamic loader	2021-05-10 10:31:41 +02:00