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GNU C Library master sources branch release/2.27/master updated. glibc-2.27-43-gd658d6d
- From: ldv at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 11 May 2018 10:28:13 -0000
- Subject: GNU C Library master sources branch release/2.27/master updated. glibc-2.27-43-gd658d6d
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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=d658d6d757a4fd3f187d38da8b627dd8142f3608
commit d658d6d757a4fd3f187d38da8b627dd8142f3608
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Apr 3 12:19:20 2018 -0700
Update RWF_SUPPORTED for Linux kernel 4.16 [BZ #22947]
Add RWF_APPEND to RWF_SUPPORTED to support Linux kernel 4.16.
[BZ #22947]
* bits/uio-ext.h (RWF_APPEND): New.
* sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_APPEND): Likewise.
* manual/llio.texi: Document RWF_APPEND.
* misc/tst-preadvwritev2-common.c (RWF_APPEND): New.
(RWF_SUPPORTED): Add RWF_APPEND.
(cherry picked from commit f2652643d7234c08205b75f527191c2e2b35251f)
diff --git a/ChangeLog b/ChangeLog
index 670c6d9..bbf9af1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2018-04-03 H.J. Lu <hongjiu.lu@intel.com>
+
+ [BZ #22947]
+ * bits/uio-ext.h (RWF_APPEND): New.
+ * sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_APPEND): Likewise.
+ * manual/llio.texi: Document RWF_APPEND.
+ * misc/tst-preadvwritev2-common.c (RWF_APPEND): New.
+ (RWF_SUPPORTED): Add RWF_APPEND.
+
2018-03-27 Jesse Hathaway <jesse@mbuki-mvuki.org>
* sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Return
diff --git a/bits/uio-ext.h b/bits/uio-ext.h
index 8c15a05..d5aa06f 100644
--- a/bits/uio-ext.h
+++ b/bits/uio-ext.h
@@ -28,5 +28,6 @@
#define RWF_DSYNC 0x00000002 /* per-IO O_DSYNC. */
#define RWF_SYNC 0x00000004 /* per-IO O_SYNC. */
#define RWF_NOWAIT 0x00000008 /* per-IO nonblocking mode. */
+#define RWF_APPEND 0x00000010 /* per-IO O_APPEND. */
#endif /* sys/uio_ext.h */
diff --git a/manual/llio.texi b/manual/llio.texi
index 642e56e..7d87799 100644
--- a/manual/llio.texi
+++ b/manual/llio.texi
@@ -1271,6 +1271,9 @@ Per-IO synchronization as if the file was opened with @code{O_SYNC} flag.
@item RWF_NOWAIT
Use nonblocking mode for this operation; that is, this call to @code{preadv2}
will fail and set @code{errno} to @code{EAGAIN} if the operation would block.
+
+@item RWF_APPEND
+Per-IO synchronization as if the file was opened with @code{O_APPEND} flag.
@end vtable
When the source file is compiled with @code{_FILE_OFFSET_BITS == 64} the
diff --git a/misc/tst-preadvwritev2-common.c b/misc/tst-preadvwritev2-common.c
index 89fd0a3..f889a21 100644
--- a/misc/tst-preadvwritev2-common.c
+++ b/misc/tst-preadvwritev2-common.c
@@ -34,7 +34,11 @@ do_test_with_invalid_flags (void)
#ifndef RWF_NOWAIT
# define RWF_NOWAIT 0
#endif
-#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT)
+#ifndef RWF_APPEND
+# define RWF_APPEND 0
+#endif
+#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT \
+ | RWF_APPEND)
/* Set the next bit from the mask of all supported flags. */
int invalid_flag = RWF_SUPPORTED != 0 ? __builtin_clz (RWF_SUPPORTED) : 2;
invalid_flag = 0x1 << ((sizeof (int) * CHAR_BIT) - invalid_flag);
diff --git a/sysdeps/unix/sysv/linux/bits/uio-ext.h b/sysdeps/unix/sysv/linux/bits/uio-ext.h
index 53663ed..8698bc1 100644
--- a/sysdeps/unix/sysv/linux/bits/uio-ext.h
+++ b/sysdeps/unix/sysv/linux/bits/uio-ext.h
@@ -46,6 +46,7 @@ extern ssize_t process_vm_writev (pid_t __pid, const struct iovec *__lvec,
#define RWF_DSYNC 0x00000002 /* per-IO O_DSYNC. */
#define RWF_SYNC 0x00000004 /* per-IO O_SYNC. */
#define RWF_NOWAIT 0x00000008 /* per-IO nonblocking mode. */
+#define RWF_APPEND 0x00000010 /* per-IO O_APPEND. */
__END_DECLS
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 9 +++++++++
bits/uio-ext.h | 1 +
manual/llio.texi | 3 +++
misc/tst-preadvwritev2-common.c | 6 +++++-
sysdeps/unix/sysv/linux/bits/uio-ext.h | 1 +
5 files changed, 19 insertions(+), 1 deletions(-)
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