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Diffstat (limited to 'sysdeps/unix/sysv/linux/readv.c')
-rw-r--r--sysdeps/unix/sysv/linux/readv.c41
1 files changed, 16 insertions, 25 deletions
diff --git a/sysdeps/unix/sysv/linux/readv.c b/sysdeps/unix/sysv/linux/readv.c
index d12fa49373..bff4a3ff74 100644
--- a/sysdeps/unix/sysv/linux/readv.c
+++ b/sysdeps/unix/sysv/linux/readv.c
@@ -37,42 +37,33 @@ static ssize_t __atomic_readv_replacement (int, __const struct iovec *,
#endif
-/* We should deal with kernel which have a smaller UIO_FASTIOV as well
- as a very big count. */
-static ssize_t
-do_readv (int fd, const struct iovec *vector, int count)
-{
- ssize_t bytes_read;
-
- bytes_read = INLINE_SYSCALL (readv, 3, fd, CHECK_N (vector, count), count);
-
-#ifdef __ASSUME_COMPLETE_READV_WRITEV
- return bytes_read;
-#else
- if (bytes_read >= 0 || errno != EINVAL || count <= UIO_FASTIOV)
- return bytes_read;
-
- return __atomic_readv_replacement (fd, vector, count);
-#endif
-}
-
-
ssize_t
__libc_readv (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
{
- if (SINGLE_THREAD_P)
- return do_readv (fd, vector, count);
+ ssize_t result;
- int oldtype = LIBC_CANCEL_ASYNC ();
+ if (SINGLE_THREAD_P)
+ result = INLINE_SYSCALL (readv, 3, fd, CHECK_N (vector, count), count);
+ else
+ {
+ int oldtype = LIBC_CANCEL_ASYNC ();
- int result = do_readv (fd, vector, count);
+ result = INLINE_SYSCALL (readv, 3, fd, CHECK_N (vector, count), count);
- LIBC_CANCEL_RESET (oldtype);
+ LIBC_CANCEL_RESET (oldtype);
+ }
+#ifdef __ASSUME_COMPLETE_READV_WRITEV
return result;
+#else
+ if (result >= 0 || errno != EINVAL || count <= UIO_FASTIOV)
+ return result;
+
+ return __atomic_readv_replacement (fd, vector, count);
+#endif
}
strong_alias (__libc_readv, __readv)
weak_alias (__libc_readv, readv)