All of lore.kernel.org
 help / color / mirror / Atom feed
From: Santosh Sivaraj <santosh@fossix.org>
To: linux-nvdimm@lists.01.org,
	Dan Williams <dan.j.williams@intel.com>,
	Vishal Verma <vishal.l.verma@intel.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>, harish@linux.ibm.com
Subject: [PATCH ndctl] namespace-action: Don't act on any seed namespaces
Date: Sun,  5 Jul 2020 09:45:19 +0530	[thread overview]
Message-ID: <20200705041519.3263863-1-santosh@fossix.org> (raw)

Catch seed namespaces early on. This will prevent checking for sizes in enable,
disable and destroy namespace code path, which in turn prevents the inconsistent
reporting in count of enabled/disabled namespaces.

Signed-off-by: Santosh Sivaraj <santosh@fossix.org>
---
 ndctl/lib/libndctl.c |  5 -----
 ndctl/namespace.c    | 14 ++------------
 2 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/ndctl/lib/libndctl.c b/ndctl/lib/libndctl.c
index ee737cb..d0599f7 100644
--- a/ndctl/lib/libndctl.c
+++ b/ndctl/lib/libndctl.c
@@ -4130,16 +4130,11 @@ NDCTL_EXPORT int ndctl_namespace_enable(struct ndctl_namespace *ndns)
 	const char *devname = ndctl_namespace_get_devname(ndns);
 	struct ndctl_ctx *ctx = ndctl_namespace_get_ctx(ndns);
 	struct ndctl_region *region = ndns->region;
-	unsigned long long size = ndctl_namespace_get_size(ndns);
 	int rc;
 
 	if (ndctl_namespace_is_enabled(ndns))
 		return 0;
 
-	/* Don't try to enable idle namespace (no capacity allocated) */
-	if (size == 0)
-		return -ENXIO;
-
 	rc = ndctl_bind(ctx, ndns->module, devname);
 
 	/*
diff --git a/ndctl/namespace.c b/ndctl/namespace.c
index 0550580..5a086d0 100644
--- a/ndctl/namespace.c
+++ b/ndctl/namespace.c
@@ -1102,7 +1102,6 @@ static int namespace_destroy(struct ndctl_region *region,
 		struct ndctl_namespace *ndns)
 {
 	const char *devname = ndctl_namespace_get_devname(ndns);
-	unsigned long long size;
 	bool did_zero = false;
 	int rc;
 
@@ -1147,19 +1146,9 @@ static int namespace_destroy(struct ndctl_region *region,
 		goto out;
 	}
 
-	size = ndctl_namespace_get_size(ndns);
-
 	rc = ndctl_namespace_delete(ndns);
 	if (rc)
 		debug("%s: failed to reclaim\n", devname);
-
-	/*
-	 * Don't report a destroyed namespace when no capacity was
-	 * allocated.
-	 */
-	if (size == 0 && rc == 0)
-		rc = 1;
-
 out:
 	return rc;
 }
@@ -2128,8 +2117,9 @@ static int do_xaction_namespace(const char *namespace,
 			ndctl_namespace_foreach_safe(region, ndns, _n) {
 				ndns_name = ndctl_namespace_get_devname(ndns);
 
-				if (strcmp(namespace, "all") != 0
+				if ((strcmp(namespace, "all") != 0
 						&& strcmp(namespace, ndns_name) != 0)
+				    || ndctl_namespace_get_size(ndns) == 0)
 					continue;
 				switch (action) {
 				case ACTION_DISABLE:
-- 
2.26.2
_______________________________________________
Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org
To unsubscribe send an email to linux-nvdimm-leave@lists.01.org

             reply	other threads:[~2020-07-05  4:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-05  4:15 Santosh Sivaraj [this message]
2020-07-06  9:29 ` [PATCH ndctl] namespace-action: Don't act on any seed namespaces Harish

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200705041519.3263863-1-santosh@fossix.org \
    --to=santosh@fossix.org \
    --cc=aneesh.kumar@linux.ibm.com \
    --cc=dan.j.williams@intel.com \
    --cc=harish@linux.ibm.com \
    --cc=linux-nvdimm@lists.01.org \
    --cc=vishal.l.verma@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.