From d4b4a00a462348750bb18544eb30853ee6ac5d10 Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Fri, 2 Feb 2018 10:46:26 +0100
Subject: preadv2/pwritev2: Handle offset == -1 [BZ #22753]

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
---
 sysdeps/posix/preadv64v2.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'sysdeps/posix/preadv64v2.c')

diff --git a/sysdeps/posix/preadv64v2.c b/sysdeps/posix/preadv64v2.c
index a4844b145c..f89ad08c54 100644
--- a/sysdeps/posix/preadv64v2.c
+++ b/sysdeps/posix/preadv64v2.c
@@ -30,7 +30,10 @@ preadv64v2 (int fd, const struct iovec *vector, int count, off64_t offset,
       return -1;
     }
 
-  return preadv64 (fd, vector, count, offset);
+  if (offset == -1)
+    return __readv (fd, vector, count);
+  else
+    return preadv64 (fd, vector, count, offset);
 }
 
 #ifdef __OFF_T_MATCHES_OFF64_T
-- 
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