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lib/replace: drop runtime copy_file_range() check

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This reverts commit 4354823c5146753ef8a3791bc8562379096659b8
"libreplace: properly execute SYS_copy_file_range check".

We now use a runtime check in the user of copy_file_range().

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Sep  7 19:24:57 UTC 2021 on sn-devel-184
This commit is contained in:
Ralph Boehme 2021-09-05 15:09:12 +02:00 committed by Jeremy Allison
parent 3347bfce9e
commit 2b86cff4a4
1 changed files with 2 additions and 24 deletions
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26
lib/replace/wscript
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@ -456,32 +456,10 @@ def configure(conf):
conf.CHECK_FUNCS('getprogname')
if not conf.CHECK_FUNCS('copy_file_range'):
conf.CHECK_CODE('''
int src_fd = -1, dst_fd = -1, ret;
ssize_t written;
char src[]="/tmp/test.XXXXXX";
char dst[]="/tmp/test.XXXXXX";
src_fd = mkstemp(src);
if (src_fd == -1) {ret = 1; goto cleanup;}
dst_fd = mkstemp(dst);
if (dst_fd == -1) {ret = 2; goto cleanup;}
written = pwrite(src_fd, "x", 1, 0);
if (written != 1) {ret = 3; goto cleanup;}
written = syscall(SYS_copy_file_range,src_fd,0,dst_fd,0,1,0);
if (written != 1) {
printf("SYS_copy_file_range failed: %s", strerror(errno));
ret = 4; goto cleanup;
}
ret = 0;
cleanup:
if (src_fd != -1) close(src_fd);
if (dst_fd != -1) close(dst_fd);
unlink(src);
unlink(dst);
return ret;
syscall(SYS_copy_file_range,0,NULL,0,NULL,0,0);
''',
'HAVE_SYSCALL_COPY_FILE_RANGE',
headers='errno.h string.h stdio.h sys/syscall.h unistd.h sys/types.h sys/stat.h fcntl.h',
execute=True,
headers='sys/syscall.h unistd.h',
msg='Checking whether we have copy_file_range system call')
conf.SET_TARGET_TYPE('attr', 'EMPTY')