This support went into the kernel with commit abe8b4e3cef8 "nvdimm, btt: add a size attribute for BTTs"
Signed-off-by: Dan Williams <[email protected]> --- test/libndctl.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/test/libndctl.c b/test/libndctl.c index 38a0bb746905..0381ee2cdefb 100644 --- a/test/libndctl.c +++ b/test/libndctl.c @@ -970,6 +970,8 @@ static int check_pfn_create(struct ndctl_region *region, static int check_btt_size(struct ndctl_btt *btt) { + struct ndctl_ctx *ctx = ndctl_btt_get_ctx(btt); + struct ndctl_test *test = ndctl_get_private_data(ctx); struct ndctl_namespace *ndns = ndctl_btt_get_namespace(btt); unsigned long long ns_size = ndctl_namespace_get_size(ndns); unsigned long sect_size = ndctl_btt_get_sector_size(btt); @@ -1018,6 +1020,10 @@ static int check_btt_size(struct ndctl_btt *btt) return -ENXIO; } + /* prior to 4.8 btt devices did not have a size attribute */ + if (!ndctl_test_attempt(test, KERNEL_VERSION(4, 8, 0))) + return 0; + expect = expect_table[size_select][sect_select]; actual = ndctl_btt_get_size(btt); if (expect != actual) { _______________________________________________ Linux-nvdimm mailing list [email protected] https://lists.01.org/mailman/listinfo/linux-nvdimm
