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From 43e48c0d2f271cba4237f6eefc3e4912a74c102b Mon Sep 17 00:00:00 2001
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From: Dan Williams <dan.j.williams@intel.com>
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Date: Tue, 9 Mar 2021 22:09:49 -0800
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Subject: [PATCH 013/217] test/libndctl: Use ndctl_region_set_ro() to change
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disk read-only state
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Kernel commit 52f019d43c22 ("block: add a hard-readonly flag to struct
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gendisk") broke the read-only management test, by fixing the broken
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behavior that BLKROSET could make a block device read-write even when the
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disk is read-only. The fix [1] propagates changes of the region
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read-only state to the underlying disk. Add ndctl_region_set_ro() ahead of
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BLKROSET so that BLKROSET does not conflict the block_device state with the
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disk state.
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[1]: http://lore.kernel.org/r/161534060720.528671.2341213328968989192.stgit@dwillia2-desk3.amr.corp.intel.com
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Reported-by: kernel test robot <lkp@intel.com>
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Reported-by: Vishal Verma <vishal.l.verma@intel.com>
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Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
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Link: https://lore.kernel.org/r/161535658913.530219.12194565167385663385.stgit@dwillia2-desk3.amr.corp.intel.com
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---
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test/libndctl.c | 18 +++++++++++++++++-
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1 file changed, 17 insertions(+), 1 deletion(-)
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diff --git a/test/libndctl.c b/test/libndctl.c
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index fc65149..c42f785 100644
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--- a/test/libndctl.c
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+++ b/test/libndctl.c
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@@ -1541,6 +1541,7 @@ static int validate_bdev(const char *devname, struct ndctl_btt *btt,
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struct ndctl_pfn *pfn, struct ndctl_namespace *ndns,
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struct namespace *namespace, void *buf)
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{
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+ struct ndctl_region *region = ndctl_namespace_get_region(ndns);
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char bdevpath[50];
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int fd, rc, ro;
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@@ -1578,6 +1579,13 @@ static int validate_bdev(const char *devname, struct ndctl_btt *btt,
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}
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ro = 0;
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+ rc = ndctl_region_set_ro(region, ro);
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+ if (rc < 0) {
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+ fprintf(stderr, "%s: ndctl_region_set_ro failed\n", devname);
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+ rc = -errno;
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+ goto out;
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+ }
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+
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rc = ioctl(fd, BLKROSET, &ro);
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if (rc < 0) {
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fprintf(stderr, "%s: BLKROSET failed\n",
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@@ -1605,8 +1613,16 @@ static int validate_bdev(const char *devname, struct ndctl_btt *btt,
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rc = -ENXIO;
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goto out;
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}
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+
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+ rc = ndctl_region_set_ro(region, namespace->ro);
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+ if (rc < 0) {
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+ fprintf(stderr, "%s: ndctl_region_set_ro reset failed\n", devname);
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+ rc = -errno;
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+ goto out;
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+ }
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+
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rc = 0;
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- out:
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+out:
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close(fd);
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return rc;
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}
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--
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2.27.0
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