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sched_setaffinity.2: Correct details of return value of sched_getaffinity() syscall 

Things changed a little with:

    commit cd3d8031eb4311e516329aee03c79a08333141f1
    Author: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
    Date:   Fri Mar 12 16:15:36 2010 +0900

Reported-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2019-05-05 13:02:30 -05:00
parent f19efb02df
commit 14a848f0f1
1 changed files with 7 additions and 1 deletions
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8
man2/sched_setaffinity.2
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@ -238,9 +238,15 @@ being typed as
.IR "unsigned long\ *" ,
reflecting the fact that the underlying implementation of CPU
sets is a simple bit mask.
.PP
On success, the raw
.BR sched_getaffinity ()
system call returns the size (in bytes) of the
system call returns the number of bytes placed copied into the
.I mask
buffer;
this will be the minimum of
.I cpusetsize
and the size (in bytes) of the
.I cpumask_t
data type that is used internally by the kernel to
represent the CPU set bit mask.