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ZTS: small fix for SEEK_DATA/SEEK_HOLE tests (#16413)

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Some libc's like uClibc lag the proper definition of SEEK_DATA
and SEEK_HOLE. Since we have only two files in ZTS which use
these definitons, let's define them by hand:

```
#ifndef SEEK_DATA
#define SEEK_DATA 3
#endif
#ifndef SEEK_HOLE
#define SEEK_HOLE 4
#endif
```

There should be no failures, because:
- FreeBSD has support for SEEK_DATA/SEEK_HOLE since FreeBSD 8
- Linux has it since Linux 3.1
- the libc will submit the parameters unchanged to the kernel

Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Tino Reichardt
2024-08-07 18:52:37 +02:00
committed by Tony Hutter
parent b0cfb480ca
commit 55468ccc3e
2 changed files with 17 additions and 0 deletions
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tests/zfs-tests/tests/functional/cp_files/seekflood.c
+7
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@@ -36,6 +36,13 @@
#include <sys/stat.h>
#include <sys/wait.h>
/* some older uClibc's lack the defines, so we'll manually define them */
#ifdef __UCLIBC__
#ifndef SEEK_DATA
#define SEEK_DATA 3
#endif
#endif
#define DATASIZE (4096)
char data[DATASIZE];