fsx: fix compile error for preadv2()

Commit d6b9d8eff076 ("fsx: add support for RWF_DONTCACHE") introduced
preadv2() calls in ltp/fsx.c. However, sys/uio.h is not included to the
source file, which causes compile errors with the gcc option
-Werror-implicit-function-declaration:

fsx.c: In function 'test_dontcache_io':
fsx.c:1956:15: error: implicit declaration of function 'preadv2'; did you mean 'pread64'? [-Wimplicit-function-declaration]
 1956 |         ret = preadv2(fd, &iov, 1, 0, RWF_DONTCACHE);
      |               ^~~~~~~
      |               pread64
fsx.c: In function 'fsx_rw':
fsx.c:2836:31: error: implicit declaration of function 'pwritev2'; did you mean 'pwrite64'? [-Wimplicit-function-declaration]
 2836 |                         ret = pwritev2(fd, &iov, 1, offset, flags);
      |                               ^~~~~~~~
      |                               pwrite64

To fix it, add the include directive.

Fixes: d6b9d8eff076 ("fsx: add support for RWF_DONTCACHE")
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/ltp/fsx.c b/ltp/fsx.c
index 9efd2f5c86d11c4a9fdc89bce5e729158f1183bd..3e89d57010c041caab9394e0f8d420537729c8b1 100644 (file)
--- a/ltp/fsx.c
+++ b/ltp/fsx.c
@@ -20,6 +20,7 @@
 #include <strings.h>
 #include <sys/file.h>
 #include <sys/mman.h>
+#include <sys/uio.h>
 #include <stdbool.h>
 #ifdef HAVE_ERR_H
 #include <err.h>