Compilation fails on systems where copy_file_range is already defined as a
stub.
The prototype of copy_file_range in glibc returns an ssize_t, not an off_t.
The function currently only exists on linux and freebsd, and in both cases
the return type is ssize_t
Signed-off-by: Manolo de Medici <manolo.demed...@gmail.com>
---
block/file-posix.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index 35684f7e21..f744b35642 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2000,12 +2000,13 @@ static int handle_aiocb_write_zeroes_unmap(void *opaque)
}
#ifndef HAVE_COPY_FILE_RANGE
-static off_t copy_file_range(int in_fd, off_t *in_off, int out_fd,
- off_t *out_off, size_t len, unsigned int flags)
+ssize_t copy_file_range (int infd, off_t *pinoff,
+ int outfd, off_t *poutoff,
+ size_t length, unsigned int flags)
{
#ifdef __NR_copy_file_range
- return syscall(__NR_copy_file_range, in_fd, in_off, out_fd,
- out_off, len, flags);
+ return (ssize_t)syscall(__NR_copy_file_range, infd, pinoff, outfd,
+ poutoff, length, flags);
#else
errno = ENOSYS;
return -1;
--
2.43.0
