diff mbox

[5/4] xfs_io: fix copy_file_range symbol name collision

Message ID 20180205165041.GH4849@magnolia (mailing list archive)
State Accepted
Headers show

Commit Message

Darrick J. Wong Feb. 5, 2018, 4:50 p.m. UTC
From: Darrick J. Wong <darrick.wong@oracle.com>

glibc 2.27 has a copy_file_range wrapper, so we need to change our
internal function out of the way to avoid compiler warnings.

Reported-by: fredrik@crux.nu
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 io/copy_file_range.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

Eric Sandeen Feb. 5, 2018, 5:21 p.m. UTC | #1
On 2/5/18 10:50 AM, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> glibc 2.27 has a copy_file_range wrapper, so we need to change our
> internal function out of the way to avoid compiler warnings.
> 
> Reported-by: fredrik@crux.nu
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

Ok, sure.  Yay namespace.

Reviewed-by: Eric Sandeen <sandeen@redhat.com>

> ---
>  io/copy_file_range.c |   11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/io/copy_file_range.c b/io/copy_file_range.c
> index d1dfc5a..99fba20 100644
> --- a/io/copy_file_range.c
> +++ b/io/copy_file_range.c
> @@ -42,13 +42,18 @@ copy_range_help(void)
>  "));
>  }
>  
> +/*
> + * Issue a raw copy_file_range syscall; for our test program we don't want the
> + * glibc buffered copy fallback.
> + */
>  static loff_t
> -copy_file_range(int fd, loff_t *src, loff_t *dst, size_t len)
> +copy_file_range_cmd(int fd, loff_t *src, loff_t *dst, size_t len)
>  {
>  	loff_t ret;
>  
>  	do {
> -		ret = syscall(__NR_copy_file_range, fd, src, file->fd, dst, len, 0);
> +		ret = syscall(__NR_copy_file_range, fd, src, file->fd, dst,
> +				len, 0);
>  		if (ret == -1) {
>  			perror("copy_range");
>  			return errno;
> @@ -130,7 +135,7 @@ copy_range_f(int argc, char **argv)
>  		copy_dst_truncate();
>  	}
>  
> -	ret = copy_file_range(fd, &src, &dst, len);
> +	ret = copy_file_range_cmd(fd, &src, &dst, len);
>  	close(fd);
>  	return ret;
>  }
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/io/copy_file_range.c b/io/copy_file_range.c
index d1dfc5a..99fba20 100644
--- a/io/copy_file_range.c
+++ b/io/copy_file_range.c
@@ -42,13 +42,18 @@  copy_range_help(void)
 "));
 }
 
+/*
+ * Issue a raw copy_file_range syscall; for our test program we don't want the
+ * glibc buffered copy fallback.
+ */
 static loff_t
-copy_file_range(int fd, loff_t *src, loff_t *dst, size_t len)
+copy_file_range_cmd(int fd, loff_t *src, loff_t *dst, size_t len)
 {
 	loff_t ret;
 
 	do {
-		ret = syscall(__NR_copy_file_range, fd, src, file->fd, dst, len, 0);
+		ret = syscall(__NR_copy_file_range, fd, src, file->fd, dst,
+				len, 0);
 		if (ret == -1) {
 			perror("copy_range");
 			return errno;
@@ -130,7 +135,7 @@  copy_range_f(int argc, char **argv)
 		copy_dst_truncate();
 	}
 
-	ret = copy_file_range(fd, &src, &dst, len);
+	ret = copy_file_range_cmd(fd, &src, &dst, len);
 	close(fd);
 	return ret;
 }