From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Subject: [ndctl PATCH 5/8] ndctl/test: Update dax-dev to handle multiple e820 ranges
Date: Tue, 12 Feb 2019 13:29:14 -0800 [thread overview]
Message-ID: <155000695444.348282.5543592734851006870.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <155000692826.348282.2795434657787204298.stgit@dwillia2-desk3.amr.corp.intel.com>
Establish a convention that the first, lowest-index, region on the e820
bus always enables in fsdax mode without need for an nd_pfn instance.
This is in preparation for a defining a collision test that requires
multiple section-mis-aligned regions defined by memmap=nn!ss.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
test/dax-dev.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/test/dax-dev.c b/test/dax-dev.c
index 0183b7af2052..49ccaa334e31 100644
--- a/test/dax-dev.c
+++ b/test/dax-dev.c
@@ -33,17 +33,28 @@ struct ndctl_namespace *ndctl_get_test_dev(struct ndctl_ctx *ctx)
struct ndctl_bus *bus;
struct ndctl_dax *dax;
struct ndctl_pfn *pfn;
- struct ndctl_region *region;
struct ndctl_namespace *ndns;
enum ndctl_namespace_mode mode;
+ struct ndctl_region *region, *min = NULL;
bus = ndctl_bus_get_by_provider(ctx, "e820");
if (!bus)
goto out;
- region = ndctl_region_get_first(bus);
- if (!region)
+ ndctl_region_foreach(bus, region) {
+ if (!min) {
+ min = region;
+ continue;
+ }
+ if (ndctl_region_get_id(region) < ndctl_region_get_id(min))
+ min = region;
+ }
+ if (!min)
goto out;
+ region = min;
+
+ /* attempt to re-enable the region if a previous test disabled it */
+ ndctl_region_enable(region);
ndns = ndctl_namespace_get_first(region);
if (!ndns)
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next prev parent reply other threads:[~2019-02-12 21:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-12 21:28 [ndctl PATCH 0/8] Improve support + testing for labels + info-blocks Dan Williams
2019-02-12 21:28 ` [ndctl PATCH 1/8] ndctl/dimm: Add 'flags' field to read-labels output Dan Williams
2019-02-12 21:28 ` [ndctl PATCH 2/8] ndctl/dimm: Add --human support to read-labels Dan Williams
2019-03-19 22:39 ` Verma, Vishal L
2019-03-19 22:51 ` Dan Williams
2019-02-12 21:29 ` [ndctl PATCH 3/8] ndctl/build: Drop -Wpointer-arith Dan Williams
2019-02-12 21:29 ` [ndctl PATCH 4/8] ndctl/namespace: Add read-info-block command Dan Williams
2019-03-19 23:11 ` Verma, Vishal L
2019-02-12 21:29 ` Dan Williams [this message]
2019-02-12 21:29 ` [ndctl PATCH 6/8] ndctl/test: Make dax.sh more robust vs small namespaces Dan Williams
2019-02-12 21:29 ` [ndctl PATCH 7/8] ndctl/namespace: Always zero info-blocks Dan Williams
2019-02-12 21:29 ` [ndctl PATCH 8/8] ndctl/test: Test inter-region collision handling Dan Williams
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