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From e1f5f9379a68471c9f5fb0859e87dd84001b0b6f Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 28 Jan 2025 15:03:59 -0800
Subject: [PATCH] sched_attr: Do not define for glibc >= 2.41
glibc 2.41+ has added [1] definitions for sched_setattr and sched_getattr functions
and struct sched_attr. Therefore, it needs to be checked for here as well before
defining sched_attr
Define sched_attr conditionally on SCHED_ATTR_SIZE_VER0
Fixes builds with glibc/trunk
[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=21571ca0d70302909cf72707b2a7736cf12190a0;hp=298bc488fdc047da37482f4003023cb9adef78f8
Upstream-Status: Submitted [https://lore.kernel.org/linux-rt-users/20250128230838.2311298-1-raj.khem@gmail.com/T/#u]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Clark Williams <williams@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Cc: rt-users <linux-rt-users@vger.kernel.org>
---
src/include/rt-sched.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/include/rt-sched.h b/src/include/rt-sched.h
index 80171c7..9cf0e3a 100644
--- a/src/include/rt-sched.h
+++ b/src/include/rt-sched.h
@@ -42,6 +42,8 @@
#define __NR_sched_getattr 275
#endif
+/* sched_attr is not defined in glibc < 2.41 */
+#ifndef SCHED_ATTR_SIZE_VER0
struct sched_attr {
uint32_t size;
uint32_t sched_policy;
@@ -68,4 +70,6 @@ int sched_getattr(pid_t pid,
unsigned int size,
unsigned int flags);
+#endif /* SCHED_ATTR_SIZE_VER0 */
+
#endif /* __RT_SCHED_H__ */
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