* Add MSG_SPLICE_PAGES from Linux 6.5 to bits/socket.h
@ 2023-10-13 22:51 Joseph Myers
2023-10-13 23:39 ` Dmitry V. Levin
0 siblings, 1 reply; 2+ messages in thread
From: Joseph Myers @ 2023-10-13 22:51 UTC (permalink / raw)
To: libc-alpha
Linux 6.5 adds a constant MSG_SPLICE_PAGES. Add this constant to
glibc's bits/socket.h.
Tested for x86_64.
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index 57b05715be..73f62d02e9 100644
--- a/sysdeps/unix/sysv/linux/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -247,6 +247,9 @@ enum
#define MSG_BATCH MSG_BATCH
MSG_ZEROCOPY = 0x4000000, /* Use user data in kernel path. */
#define MSG_ZEROCOPY MSG_ZEROCOPY
+ MSG_SPLICE_PAGES = 0x8000000, /* Splice the pages from the
+ iterator in sendmsg. */
+#define MSG_SPLICE_PAGES MSG_SPLICE_PAGES
MSG_FASTOPEN = 0x20000000, /* Send data in TCP SYN. */
#define MSG_FASTOPEN MSG_FASTOPEN
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Add MSG_SPLICE_PAGES from Linux 6.5 to bits/socket.h
2023-10-13 22:51 Add MSG_SPLICE_PAGES from Linux 6.5 to bits/socket.h Joseph Myers
@ 2023-10-13 23:39 ` Dmitry V. Levin
0 siblings, 0 replies; 2+ messages in thread
From: Dmitry V. Levin @ 2023-10-13 23:39 UTC (permalink / raw)
To: libc-alpha
On Fri, Oct 13, 2023 at 10:51:09PM +0000, Joseph Myers wrote:
> Linux 6.5 adds a constant MSG_SPLICE_PAGES. Add this constant to
> glibc's bits/socket.h.
It's an internal flag that's cleared on entering syscalls.
--
ldv
^ permalink raw reply [flat|nested] 2+ messages in thread
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