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virprocess: fix MinGW build and RHEL-5 build

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Commit b6a2828e introduced new functions to set process scheduler. There
is a small typo in ELSE path for systems where scheduler is not
available.

Also some of the definitions were introduced later in kernel. For
example RHEL-5 is running on kernel 2.6.18, but SCHED_IDLE was introduces
in 2.6.23 [1] and SCHED_BATCH in 2.6.16 [1]. We should not count only on
existence of function sched_setscheduler(), we must also check for
existence of used macros as they might not be defined.

[1] see 'man 7 sched'

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2015-02-12 13:46:08 +01:00
parent d618cdc965
commit 94cc577807
1 changed files with 5 additions and 3 deletions
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8
src/util/virprocess.c
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@ -1062,7 +1062,7 @@ virProcessExitWithStatus(int status)
exit(value);
}
#if HAVE_SCHED_SETSCHEDULER
#if HAVE_SCHED_SETSCHEDULER && defined(SCHED_BATCH) && defined(SCHED_IDLE)
static int
virProcessSchedTranslatePolicy(virProcessSchedPolicy policy)
@ -1092,7 +1092,9 @@ virProcessSchedTranslatePolicy(virProcessSchedPolicy policy)
}
int
virProcessSetScheduler(pid_t pid, virProcessSchedPolicy policy, int priority)
virProcessSetScheduler(pid_t pid,
virProcessSchedPolicy policy,
int priority)
{
struct sched_param param = {0};
int pol = virProcessSchedTranslatePolicy(policy);
@ -1144,7 +1146,7 @@ virProcessSetScheduler(pid_t pid, virProcessSchedPolicy policy, int priority)
int
virProcessSetScheduler(pid_t pid ATTRIBUTE_UNUSED,
int policy,
virProcessSchedPolicy policy,
int priority ATTRIBUTE_UNUSED)
{
if (!policy)