mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 14:50:05 +00:00
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>
This commit is contained in:
parent
95c70fd0d4
commit
3db9d208dd
@ -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
|
||||
|
@ -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
|
||||
|
@ -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
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user