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Add SYNC_FILE_RANGE_WRITE_AND_WAIT from Linux 5.2 to bits/fcntl-linux.h
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Wed, 7 Aug 2019 16:47:17 +0000
- Subject: Add SYNC_FILE_RANGE_WRITE_AND_WAIT from Linux 5.2 to bits/fcntl-linux.h
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This patch adds the SYNC_FILE_RANGE_WRITE_AND_WAIT constant from Linux
5.2 (a new name for a combination of existing bits, not actually a new
kernel interface) to bits/fcntl-linux.h.
Tested for x86_64.
2019-08-07 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU]
(SYNC_FILE_RANGE_WRITE_AND_WAIT): New macro.
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
index 3f32eb328b..ad9bf1b24b 100644
--- a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
@@ -334,6 +334,11 @@ struct f_owner_ex
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
+/* SYNC_FILE_RANGE_WRITE_AND_WAIT ensures all pages in the range are
+ written to disk before returning. */
+# define SYNC_FILE_RANGE_WRITE_AND_WAIT (SYNC_FILE_RANGE_WRITE \
+ | SYNC_FILE_RANGE_WAIT_BEFORE \
+ | SYNC_FILE_RANGE_WAIT_AFTER)
/* Flags for SPLICE and VMSPLICE. */
# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
--
Joseph S. Myers
joseph@codesourcery.com