git: 61194e9852e6 - main - Add kqueue1() syscall

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=61194e9852e641d1533cd04a5679d6042ff975d3

commit 61194e9852e641d1533cd04a5679d6042ff975d3
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2023-03-25 23:39:02 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2023-03-27 23:39:26 +0000

    Add kqueue1() syscall
    
    It takes the flags argument.  Immediate use is to provide the KQUEUE_CLOEXEC
    flag for kqueue(2).
    
    Reviewed by:    emaste, jhb
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D39271
---
 sys/kern/kern_event.c    | 13 +++++++++++++
 sys/kern/syscalls.master |  5 +++++
 sys/sys/event.h          |  3 +++
 3 files changed, 21 insertions(+)

diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
index f952a5f00340..0da4325ccd6a 100644
--- a/sys/kern/kern_event.c
+++ b/sys/kern/kern_event.c
@@ -1057,6 +1057,19 @@ sys_kqueue(struct thread *td, struct kqueue_args *uap)
 	return (kern_kqueue(td, 0, NULL));
 }
 
+int
+sys_kqueue1(struct thread *td, struct kqueue1_args *uap)
+{
+	int flags;
+
+	if ((uap->flags & ~(KQUEUE_CLOEXEC)) != 0)
+		return (EINVAL);
+	flags = 0;
+	if ((uap->flags & KQUEUE_CLOEXEC) != 0)
+		flags |= O_CLOEXEC;
+	return (kern_kqueue(td, flags, NULL));
+}
+
 static void
 kqueue_init(struct kqueue *kq)
 {
diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master
index c6dce5366219..52ae6bda5a16 100644
--- a/sys/kern/syscalls.master
+++ b/sys/kern/syscalls.master
@@ -3306,5 +3306,10 @@
 		    u_int flags,
 		);
 	}
+583	AUE_KQUEUE	STD|CAPENABLED {
+		int kqueue1(
+		    u_int flags
+		);
+	}
 
 ; vim: syntax=off
diff --git a/sys/sys/event.h b/sys/sys/event.h
index 1007b88828ae..e91ccbb31ae8 100644
--- a/sys/sys/event.h
+++ b/sys/sys/event.h
@@ -218,6 +218,9 @@ struct freebsd11_kevent32 {
 #define NOTE_NSECONDS		0x00000008	/* data is nanoseconds */
 #define	NOTE_ABSTIME		0x00000010	/* timeout is absolute */
 
+/* Flags for kqueue1(2) */
+#define	KQUEUE_CLOEXEC	0x00000001	/* close on exec */
+
 struct knote;
 SLIST_HEAD(klist, knote);
 struct kqueue;