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49 lines
1.4 KiB
Diff
49 lines
1.4 KiB
Diff
From 8041435de7ed028a27ecca64302945ad455c69a6 Mon Sep 17 00:00:00 2001
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From: "Darrick J. Wong" <darrick.wong@oracle.com>
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Date: Mon, 5 Feb 2018 14:38:02 -0600
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Subject: [PATCH] xfs_io: fix copy_file_range symbol name collision
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glibc 2.27 has a copy_file_range wrapper, so we need to change our
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internal function out of the way to avoid compiler warnings.
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Reported-by: fredrik@crux.nu
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Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Reviewed-by: Eric Sandeen <sandeen@redhat.com>
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Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
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---
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io/copy_file_range.c | 11 ++++++++---
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1 file changed, 8 insertions(+), 3 deletions(-)
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--- a/io/copy_file_range.c
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+++ b/io/copy_file_range.c
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@@ -42,13 +42,18 @@ copy_range_help(void)
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"));
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}
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+/*
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+ * Issue a raw copy_file_range syscall; for our test program we don't want the
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+ * glibc buffered copy fallback.
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+ */
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static loff_t
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-copy_file_range(int fd, loff_t *src, loff_t *dst, size_t len)
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+copy_file_range_cmd(int fd, loff_t *src, loff_t *dst, size_t len)
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{
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loff_t ret;
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do {
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- ret = syscall(__NR_copy_file_range, fd, src, file->fd, dst, len, 0);
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+ ret = syscall(__NR_copy_file_range, fd, src, file->fd, dst,
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+ len, 0);
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if (ret == -1) {
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perror("copy_range");
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return errno;
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@@ -130,7 +135,7 @@ copy_range_f(int argc, char **argv)
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copy_dst_truncate();
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}
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- ret = copy_file_range(fd, &src, &dst, len);
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+ ret = copy_file_range_cmd(fd, &src, &dst, len);
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close(fd);
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return ret;
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}
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