You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
2.6 KiB
69 lines
2.6 KiB
commit 70f560fc22212f733647c9121c26bbb2307f2e10
|
|
Author: Stafford Horne <shorne@gmail.com>
|
|
Date: Wed Apr 3 06:40:37 2024 +0100
|
|
|
|
misc: Add support for Linux uio.h RWF_NOAPPEND flag
|
|
|
|
In Linux 6.9 a new flag is added to allow for Per-io operations to
|
|
disable append mode even if a file was opened with the flag O_APPEND.
|
|
This is done with the new RWF_NOAPPEND flag.
|
|
|
|
This caused two test failures as these tests expected the flag 0x00000020
|
|
to be unused. Adding the flag definition now fixes these tests on Linux
|
|
6.9 (v6.9-rc1).
|
|
|
|
FAIL: misc/tst-preadvwritev2
|
|
FAIL: misc/tst-preadvwritev64v2
|
|
|
|
This patch adds the flag, adjusts the test and adds details to
|
|
documentation.
|
|
|
|
Link: https://lore.kernel.org/all/20200831153207.GO3265@brightrain.aerifal.cx/
|
|
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
(cherry picked from commit 3db9d208dd5f30b12900989c6d2214782b8e2011)
|
|
|
|
diff --git a/manual/llio.texi b/manual/llio.texi
|
|
index 0b61d491f50b763a..fae49d14332db675 100644
|
|
--- a/manual/llio.texi
|
|
+++ b/manual/llio.texi
|
|
@@ -1339,6 +1339,10 @@ 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.
|
|
+
|
|
+@item RWF_NOAPPEND
|
|
+This flag allows an offset to be honored, even 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 b5f19f002cd1653e..8e04ff7282e727b6 100644
|
|
--- a/misc/tst-preadvwritev2-common.c
|
|
+++ b/misc/tst-preadvwritev2-common.c
|
|
@@ -34,8 +34,11 @@
|
|
#ifndef RWF_APPEND
|
|
# define RWF_APPEND 0
|
|
#endif
|
|
+#ifndef RWF_NOAPPEND
|
|
+# define RWF_NOAPPEND 0
|
|
+#endif
|
|
#define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT \
|
|
- | RWF_APPEND)
|
|
+ | RWF_APPEND | RWF_NOAPPEND)
|
|
|
|
/* Generic uio_lim.h does not define IOV_MAX. */
|
|
#ifndef IOV_MAX
|
|
diff --git a/sysdeps/unix/sysv/linux/bits/uio-ext.h b/sysdeps/unix/sysv/linux/bits/uio-ext.h
|
|
index 7854cccef3e0a618..ead7a091566aa295 100644
|
|
--- a/sysdeps/unix/sysv/linux/bits/uio-ext.h
|
|
+++ b/sysdeps/unix/sysv/linux/bits/uio-ext.h
|
|
@@ -47,6 +47,7 @@ extern ssize_t process_vm_writev (pid_t __pid, const struct iovec *__lvec,
|
|
#define RWF_SYNC 0x00000004 /* per-IO O_SYNC. */
|
|
#define RWF_NOWAIT 0x00000008 /* per-IO nonblocking mode. */
|
|
#define RWF_APPEND 0x00000010 /* per-IO O_APPEND. */
|
|
+#define RWF_NOAPPEND 0x00000020 /* per-IO negation of O_APPEND */
|
|
|
|
__END_DECLS
|
|
|