* [ndctl PATCH 0/3] greedy namespace creation
@ 2019-08-29 0:17 Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 1/3] Documentation: refactor 'bus options' into its own include Vishal Verma
` (2 more replies)
0 siblings, 3 replies; 11+ messages in thread
From: Vishal Verma @ 2019-08-29 0:17 UTC (permalink / raw)
To: linux-nvdimm; +Cc: Steve Scargall
Patch 1 and 2 refactor and clarify the documentation for the way
filtering works using --bus=, --region=, and --dimm= options for all
commands.
Patch 3 adds a new --continue option to continue creating as many
namespaces as possible for the given filter spec.
Vishal Verma (3):
Documentation: refactor 'bus options' into its own include
Documentation: clarify bus/dimm/region filtering
ndctl/namespace: add a --continue option to create namespaces greedily
Documentation/ndctl/ndctl-check-namespace.txt | 4 +++
Documentation/ndctl/ndctl-clear-errors.txt | 4 +++
.../ndctl/ndctl-create-namespace.txt | 11 ++++++++
Documentation/ndctl/ndctl-disable-dimm.txt | 4 +++
Documentation/ndctl/ndctl-disable-region.txt | 4 +++
Documentation/ndctl/ndctl-enable-dimm.txt | 4 +++
Documentation/ndctl/ndctl-enable-region.txt | 4 +++
Documentation/ndctl/ndctl-freeze-security.txt | 4 +++
Documentation/ndctl/ndctl-inject-error.txt | 4 +++
Documentation/ndctl/ndctl-list.txt | 4 +++
.../ndctl/ndctl-remove-passphrase.txt | 4 +++
Documentation/ndctl/ndctl-sanitize-dimm.txt | 4 +++
.../ndctl/ndctl-setup-passphrase.txt | 4 +++
Documentation/ndctl/ndctl-update-firmware.txt | 4 +++
.../ndctl/ndctl-update-passphrase.txt | 4 +++
Documentation/ndctl/ndctl-wait-overwrite.txt | 4 +++
Documentation/ndctl/xable-bus-options.txt | 5 ++++
Documentation/ndctl/xable-dimm-options.txt | 14 +++--------
.../ndctl/xable-namespace-options.txt | 4 +++
Documentation/ndctl/xable-region-options.txt | 14 +++--------
ndctl/namespace.c | 25 +++++++++++++++----
21 files changed, 108 insertions(+), 25 deletions(-)
create mode 100644 Documentation/ndctl/xable-bus-options.txt
--
2.20.1
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [ndctl PATCH 1/3] Documentation: refactor 'bus options' into its own include
2019-08-29 0:17 [ndctl PATCH 0/3] greedy namespace creation Vishal Verma
@ 2019-08-29 0:17 ` Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 2/3] Documentation: clarify bus/dimm/region filtering Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily Vishal Verma
2 siblings, 0 replies; 11+ messages in thread
From: Vishal Verma @ 2019-08-29 0:17 UTC (permalink / raw)
To: linux-nvdimm; +Cc: Steve Scargall
Create a new 'xable-bus-options.txt' file that is included everywhere
that previously relied upon xable-region-options.txt for bus options
inclusion.
While at it, fix the formatting for the first description text block
from an include - the empty line at the start caused the first block to
be incorrectly indented. This fixes both the dimm and region variants.
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
Documentation/ndctl/ndctl-check-namespace.txt | 4 ++++
Documentation/ndctl/ndctl-clear-errors.txt | 4 ++++
Documentation/ndctl/ndctl-create-namespace.txt | 4 ++++
Documentation/ndctl/ndctl-disable-dimm.txt | 4 ++++
Documentation/ndctl/ndctl-disable-region.txt | 4 ++++
Documentation/ndctl/ndctl-enable-dimm.txt | 4 ++++
Documentation/ndctl/ndctl-enable-region.txt | 4 ++++
Documentation/ndctl/ndctl-freeze-security.txt | 4 ++++
Documentation/ndctl/ndctl-inject-error.txt | 4 ++++
Documentation/ndctl/ndctl-list.txt | 4 ++++
Documentation/ndctl/ndctl-remove-passphrase.txt | 4 ++++
Documentation/ndctl/ndctl-sanitize-dimm.txt | 4 ++++
Documentation/ndctl/ndctl-setup-passphrase.txt | 4 ++++
Documentation/ndctl/ndctl-update-firmware.txt | 4 ++++
Documentation/ndctl/ndctl-update-passphrase.txt | 4 ++++
Documentation/ndctl/ndctl-wait-overwrite.txt | 4 ++++
Documentation/ndctl/xable-bus-options.txt | 4 ++++
Documentation/ndctl/xable-dimm-options.txt | 13 +++----------
Documentation/ndctl/xable-namespace-options.txt | 4 ++++
Documentation/ndctl/xable-region-options.txt | 13 +++----------
20 files changed, 78 insertions(+), 20 deletions(-)
create mode 100644 Documentation/ndctl/xable-bus-options.txt
diff --git a/Documentation/ndctl/ndctl-check-namespace.txt b/Documentation/ndctl/ndctl-check-namespace.txt
index 2ece4e7..222f729 100644
--- a/Documentation/ndctl/ndctl-check-namespace.txt
+++ b/Documentation/ndctl/ndctl-check-namespace.txt
@@ -69,6 +69,10 @@ OPTIONS
--region=::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-clear-errors.txt b/Documentation/ndctl/ndctl-clear-errors.txt
index 206ab58..8eff57e 100644
--- a/Documentation/ndctl/ndctl-clear-errors.txt
+++ b/Documentation/ndctl/ndctl-clear-errors.txt
@@ -98,6 +98,10 @@ can potentially be a very long-running operation.
--region=::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-create-namespace.txt b/Documentation/ndctl/ndctl-create-namespace.txt
index 343733d..c9ae27c 100644
--- a/Documentation/ndctl/ndctl-create-namespace.txt
+++ b/Documentation/ndctl/ndctl-create-namespace.txt
@@ -211,6 +211,10 @@ OPTIONS
--region=::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-disable-dimm.txt b/Documentation/ndctl/ndctl-disable-dimm.txt
index 7706ac3..caa6714 100644
--- a/Documentation/ndctl/ndctl-disable-dimm.txt
+++ b/Documentation/ndctl/ndctl-disable-dimm.txt
@@ -19,6 +19,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-disable-region.txt b/Documentation/ndctl/ndctl-disable-region.txt
index ea1fd3a..3ca65a6 100644
--- a/Documentation/ndctl/ndctl-disable-region.txt
+++ b/Documentation/ndctl/ndctl-disable-region.txt
@@ -19,6 +19,10 @@ OPTIONS
<region>::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-enable-dimm.txt b/Documentation/ndctl/ndctl-enable-dimm.txt
index cd9908d..3e7106c 100644
--- a/Documentation/ndctl/ndctl-enable-dimm.txt
+++ b/Documentation/ndctl/ndctl-enable-dimm.txt
@@ -19,6 +19,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-enable-region.txt b/Documentation/ndctl/ndctl-enable-region.txt
index e5cbddb..96c2d1e 100644
--- a/Documentation/ndctl/ndctl-enable-region.txt
+++ b/Documentation/ndctl/ndctl-enable-region.txt
@@ -19,6 +19,10 @@ OPTIONS
<region>::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-freeze-security.txt b/Documentation/ndctl/ndctl-freeze-security.txt
index dbb94e7..55aaab7 100644
--- a/Documentation/ndctl/ndctl-freeze-security.txt
+++ b/Documentation/ndctl/ndctl-freeze-security.txt
@@ -56,6 +56,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-v::
--verbose::
Emit debug messages.
diff --git a/Documentation/ndctl/ndctl-inject-error.txt b/Documentation/ndctl/ndctl-inject-error.txt
index 744ea50..da376ec 100644
--- a/Documentation/ndctl/ndctl-inject-error.txt
+++ b/Documentation/ndctl/ndctl-inject-error.txt
@@ -112,6 +112,10 @@ include::human-option.txt[]
--region=::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
include::../copyright.txt[]
SEE ALSO
diff --git a/Documentation/ndctl/ndctl-list.txt b/Documentation/ndctl/ndctl-list.txt
index 80ad610..f9c7434 100644
--- a/Documentation/ndctl/ndctl-list.txt
+++ b/Documentation/ndctl/ndctl-list.txt
@@ -62,6 +62,10 @@ OPTIONS
--region=::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-d::
--dimm=::
An 'nmemX' device name, or dimm id number. The dimm id number
diff --git a/Documentation/ndctl/ndctl-remove-passphrase.txt b/Documentation/ndctl/ndctl-remove-passphrase.txt
index 3e838bb..f14e649 100644
--- a/Documentation/ndctl/ndctl-remove-passphrase.txt
+++ b/Documentation/ndctl/ndctl-remove-passphrase.txt
@@ -25,6 +25,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-v::
--verbose::
Emit debug messages.
diff --git a/Documentation/ndctl/ndctl-sanitize-dimm.txt b/Documentation/ndctl/ndctl-sanitize-dimm.txt
index 91abf47..b2e5fde 100644
--- a/Documentation/ndctl/ndctl-sanitize-dimm.txt
+++ b/Documentation/ndctl/ndctl-sanitize-dimm.txt
@@ -38,6 +38,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-c::
--crypto-erase::
Replace the media encryption key on the NVDIMM causing all existing
diff --git a/Documentation/ndctl/ndctl-setup-passphrase.txt b/Documentation/ndctl/ndctl-setup-passphrase.txt
index b22d352..1219279 100644
--- a/Documentation/ndctl/ndctl-setup-passphrase.txt
+++ b/Documentation/ndctl/ndctl-setup-passphrase.txt
@@ -34,6 +34,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-k::
--key_handle=::
Handle for the master 'kek' (key-encryption-key) that will be used for
diff --git a/Documentation/ndctl/ndctl-update-firmware.txt b/Documentation/ndctl/ndctl-update-firmware.txt
index 449d858..1aa7fee 100644
--- a/Documentation/ndctl/ndctl-update-firmware.txt
+++ b/Documentation/ndctl/ndctl-update-firmware.txt
@@ -24,6 +24,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-f::
--firmware::
firmware file used to perform the update
diff --git a/Documentation/ndctl/ndctl-update-passphrase.txt b/Documentation/ndctl/ndctl-update-passphrase.txt
index 995efec..c7c1bfc 100644
--- a/Documentation/ndctl/ndctl-update-passphrase.txt
+++ b/Documentation/ndctl/ndctl-update-passphrase.txt
@@ -31,6 +31,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-k::
--key_handle=::
Handle for the master 'kek' (key-encryption-key) that will be used for
diff --git a/Documentation/ndctl/ndctl-wait-overwrite.txt b/Documentation/ndctl/ndctl-wait-overwrite.txt
index 0fada36..eb24f39 100644
--- a/Documentation/ndctl/ndctl-wait-overwrite.txt
+++ b/Documentation/ndctl/ndctl-wait-overwrite.txt
@@ -23,6 +23,10 @@ OPTIONS
<dimm>::
include::xable-dimm-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-v::
--verbose::
Emit debug messages.
diff --git a/Documentation/ndctl/xable-bus-options.txt b/Documentation/ndctl/xable-bus-options.txt
new file mode 100644
index 0000000..8813113
--- /dev/null
+++ b/Documentation/ndctl/xable-bus-options.txt
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+Enforce that the operation only be carried on devices that are
+attached to the given bus. Where 'bus' can be a provider name or a bus
+id number.
diff --git a/Documentation/ndctl/xable-dimm-options.txt b/Documentation/ndctl/xable-dimm-options.txt
index 709e2e4..8826c2b 100644
--- a/Documentation/ndctl/xable-dimm-options.txt
+++ b/Documentation/ndctl/xable-dimm-options.txt
@@ -1,11 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
-
- A 'nmemX' device name, or a dimm id number. The keyword 'all' can
- be specified to carry out the operation on every dimm in the system,
- optionally filtered by bus id (see --bus= option).
-
--b::
---bus=::
- Enforce that the operation only be carried on devices that are
- attached to the given bus. Where 'bus' can be a provider name or a bus
- id number.
+A 'nmemX' device name, or a dimm id number. The keyword 'all' can
+be specified to carry out the operation on every dimm in the system,
+optionally filtered by bus id (see --bus= option).
diff --git a/Documentation/ndctl/xable-namespace-options.txt b/Documentation/ndctl/xable-namespace-options.txt
index babc248..1a25fee 100644
--- a/Documentation/ndctl/xable-namespace-options.txt
+++ b/Documentation/ndctl/xable-namespace-options.txt
@@ -9,6 +9,10 @@ the operation on every namespace in the system, optionally filtered by region
--region=::
include::xable-region-options.txt[]
+-b::
+--bus=::
+include::xable-bus-options.txt[]
+
-v::
--verbose::
Emit debug messages for the namespace operation
diff --git a/Documentation/ndctl/xable-region-options.txt b/Documentation/ndctl/xable-region-options.txt
index 69d3926..d5198f5 100644
--- a/Documentation/ndctl/xable-region-options.txt
+++ b/Documentation/ndctl/xable-region-options.txt
@@ -1,11 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
-
- A 'regionX' device name, or a region id number. The keyword 'all' can
- be specified to carry out the operation on every region in the system,
- optionally filtered by bus id (see --bus= option).
-
--b::
---bus=::
- Enforce that the operation only be carried on devices that are
- attached to the given bus. Where 'bus' can be a provider name or a bus
- id number.
+A 'regionX' device name, or a region id number. The keyword 'all' can
+be specified to carry out the operation on every region in the system,
+optionally filtered by bus id (see --bus= option).
--
2.20.1
_______________________________________________
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Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
^ permalink raw reply related [flat|nested] 11+ messages in thread
* [ndctl PATCH 2/3] Documentation: clarify bus/dimm/region filtering
2019-08-29 0:17 [ndctl PATCH 0/3] greedy namespace creation Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 1/3] Documentation: refactor 'bus options' into its own include Vishal Verma
@ 2019-08-29 0:17 ` Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily Vishal Verma
2 siblings, 0 replies; 11+ messages in thread
From: Vishal Verma @ 2019-08-29 0:17 UTC (permalink / raw)
To: linux-nvdimm; +Cc: Steve Scargall
Reword the option descriptions in xable-{bus,dimm,region}-options.txt to
clarify that the options are a filtering restriction rather than a
directive to perform an action on the supplied objects, especially in
case of the 'all' keyword.
Link: https://github.com/pmem/ndctl/issues/106
Cc: Jeff Moyer <jmoyer@redhat.com>
Reported-by: Steve Scargal <steve.scargall@intel.com>
Reported-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
Documentation/ndctl/xable-bus-options.txt | 7 ++++---
Documentation/ndctl/xable-dimm-options.txt | 7 ++++---
Documentation/ndctl/xable-region-options.txt | 7 ++++---
3 files changed, 12 insertions(+), 9 deletions(-)
diff --git a/Documentation/ndctl/xable-bus-options.txt b/Documentation/ndctl/xable-bus-options.txt
index 8813113..6e0435a 100644
--- a/Documentation/ndctl/xable-bus-options.txt
+++ b/Documentation/ndctl/xable-bus-options.txt
@@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-Enforce that the operation only be carried on devices that are
-attached to the given bus. Where 'bus' can be a provider name or a bus
-id number.
+A bus id number, or a provider string (e.g. "ACPI.NFIT"). Restrict the
+operation to the specified bus(es). The keyword 'all' can be specified
+to indicate the lack of any restriction, however this is the same as
+not supplying a --bus option at all.
diff --git a/Documentation/ndctl/xable-dimm-options.txt b/Documentation/ndctl/xable-dimm-options.txt
index 8826c2b..c5b9c8c 100644
--- a/Documentation/ndctl/xable-dimm-options.txt
+++ b/Documentation/ndctl/xable-dimm-options.txt
@@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-A 'nmemX' device name, or a dimm id number. The keyword 'all' can
-be specified to carry out the operation on every dimm in the system,
-optionally filtered by bus id (see --bus= option).
+A 'nmemX' device name, or a dimm id number. Restrict the operation to
+the specified dimm(s). The keyword 'all' can be specified to indicate
+the lack of any restriction, however this is the same as not supplying
+a --dimm option at all.
diff --git a/Documentation/ndctl/xable-region-options.txt b/Documentation/ndctl/xable-region-options.txt
index d5198f5..e098684 100644
--- a/Documentation/ndctl/xable-region-options.txt
+++ b/Documentation/ndctl/xable-region-options.txt
@@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-A 'regionX' device name, or a region id number. The keyword 'all' can
-be specified to carry out the operation on every region in the system,
-optionally filtered by bus id (see --bus= option).
+A 'regionX' device name, or a region id number. Restrict the operation to
+the specified region(s). The keyword 'all' can be specified to indicate
+the lack of any restriction, however this is the same as not supplying a
+--region option at all.
--
2.20.1
_______________________________________________
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^ permalink raw reply related [flat|nested] 11+ messages in thread
* [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 0:17 [ndctl PATCH 0/3] greedy namespace creation Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 1/3] Documentation: refactor 'bus options' into its own include Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 2/3] Documentation: clarify bus/dimm/region filtering Vishal Verma
@ 2019-08-29 0:17 ` Vishal Verma
2019-08-29 2:34 ` Dan Williams
2019-08-29 17:38 ` jane.chu
2 siblings, 2 replies; 11+ messages in thread
From: Vishal Verma @ 2019-08-29 0:17 UTC (permalink / raw)
To: linux-nvdimm; +Cc: Steve Scargall
Add a --continue option to ndctl-create-namespaces to allow the creation
of as many namespaces as possible, that meet the given filter
restrictions.
The creation loop will be aborted if a failure is encountered at any
point.
Link: https://github.com/pmem/ndctl/issues/106
Reported-by: Steve Scargal <steve.scargall@intel.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
.../ndctl/ndctl-create-namespace.txt | 7 ++++++
ndctl/namespace.c | 25 +++++++++++++++----
2 files changed, 27 insertions(+), 5 deletions(-)
diff --git a/Documentation/ndctl/ndctl-create-namespace.txt b/Documentation/ndctl/ndctl-create-namespace.txt
index c9ae27c..55a8581 100644
--- a/Documentation/ndctl/ndctl-create-namespace.txt
+++ b/Documentation/ndctl/ndctl-create-namespace.txt
@@ -215,6 +215,13 @@ include::xable-region-options.txt[]
--bus=::
include::xable-bus-options.txt[]
+-c::
+--continue::
+ Do not stop after creating one namespace. Instead, greedily create as
+ many namespaces as possible within the given --bus and --region filter
+ restrictions. This will abort if any creation attempt results in an
+ error.
+
include::../copyright.txt[]
SEE ALSO
diff --git a/ndctl/namespace.c b/ndctl/namespace.c
index af20a42..8d6b249 100644
--- a/ndctl/namespace.c
+++ b/ndctl/namespace.c
@@ -41,6 +41,7 @@ static struct parameters {
bool do_scan;
bool mode_default;
bool autolabel;
+ bool greedy;
const char *bus;
const char *map;
const char *type;
@@ -114,7 +115,9 @@ OPT_STRING('t', "type", ¶m.type, "type", \
OPT_STRING('a', "align", ¶m.align, "align", \
"specify the namespace alignment in bytes (default: 2M)"), \
OPT_BOOLEAN('f', "force", &force, "reconfigure namespace even if currently active"), \
-OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels")
+OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels"), \
+OPT_BOOLEAN('c', "continue", ¶m.greedy, \
+ "continue creating namespaces as long as the filter criteria are met")
#define CHECK_OPTIONS() \
OPT_BOOLEAN('R', "repair", &repair, "perform metadata repairs"), \
@@ -1365,8 +1368,11 @@ static int do_xaction_namespace(const char *namespace,
rc = namespace_create(region);
if (rc == -EAGAIN)
continue;
- if (rc == 0)
- *processed = 1;
+ if (rc == 0) {
+ (*processed)++;
+ if (param.greedy)
+ continue;
+ }
return rc;
}
ndctl_namespace_foreach_safe(region, ndns, _n) {
@@ -1427,9 +1433,15 @@ static int do_xaction_namespace(const char *namespace,
/*
* Namespace creation searched through all candidate
* regions and all of them said "nope, I don't have
- * enough capacity", so report -ENOSPC
+ * enough capacity", so report -ENOSPC. Except during
+ * greedy namespace creation using --continue as we
+ * may have created some namespaces already, and the
+ * last one in the region search may preexist.
*/
- rc = -ENOSPC;
+ if (param.greedy && (*processed) > 0)
+ rc = 0;
+ else
+ rc = -ENOSPC;
}
return rc;
@@ -1487,6 +1499,9 @@ int cmd_create_namespace(int argc, const char **argv, struct ndctl_ctx *ctx)
rc = do_xaction_namespace(NULL, ACTION_CREATE, ctx, &created);
}
+ if (param.greedy)
+ fprintf(stderr, "created %d namespace%s\n", created,
+ created == 1 ? "" : "s");
if (rc < 0 || (!namespace && created < 1)) {
fprintf(stderr, "failed to %s namespace: %s\n", namespace
? "reconfigure" : "create", strerror(-rc));
--
2.20.1
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^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 0:17 ` [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily Vishal Verma
@ 2019-08-29 2:34 ` Dan Williams
2019-08-29 18:05 ` Verma, Vishal L
2019-08-29 17:38 ` jane.chu
1 sibling, 1 reply; 11+ messages in thread
From: Dan Williams @ 2019-08-29 2:34 UTC (permalink / raw)
To: Vishal Verma; +Cc: Steve Scargall, linux-nvdimm
On Wed, Aug 28, 2019 at 5:17 PM Vishal Verma <vishal.l.verma@intel.com> wrote:
>
> Add a --continue option to ndctl-create-namespaces to allow the creation
> of as many namespaces as possible, that meet the given filter
> restrictions.
>
> The creation loop will be aborted if a failure is encountered at any
> point.
>
> Link: https://github.com/pmem/ndctl/issues/106
> Reported-by: Steve Scargal <steve.scargall@intel.com>
> Cc: Jeff Moyer <jmoyer@redhat.com>
> Cc: Dan Williams <dan.j.williams@intel.com>
> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
> ---
> .../ndctl/ndctl-create-namespace.txt | 7 ++++++
> ndctl/namespace.c | 25 +++++++++++++++----
> 2 files changed, 27 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/ndctl/ndctl-create-namespace.txt b/Documentation/ndctl/ndctl-create-namespace.txt
> index c9ae27c..55a8581 100644
> --- a/Documentation/ndctl/ndctl-create-namespace.txt
> +++ b/Documentation/ndctl/ndctl-create-namespace.txt
> @@ -215,6 +215,13 @@ include::xable-region-options.txt[]
> --bus=::
> include::xable-bus-options.txt[]
>
> +-c::
> +--continue::
> + Do not stop after creating one namespace. Instead, greedily create as
I like the "greedy" terminology here because it makes the option seem
a bit off-putting. "Do you really want to be greedy?"
> + many namespaces as possible within the given --bus and --region filter
> + restrictions. This will abort if any creation attempt results in an
> + error.
Hmm, should "--continue --force" override that policy?
Otherwise this looks good to me.
> +
> include::../copyright.txt[]
>
> SEE ALSO
> diff --git a/ndctl/namespace.c b/ndctl/namespace.c
> index af20a42..8d6b249 100644
> --- a/ndctl/namespace.c
> +++ b/ndctl/namespace.c
> @@ -41,6 +41,7 @@ static struct parameters {
> bool do_scan;
> bool mode_default;
> bool autolabel;
> + bool greedy;
> const char *bus;
> const char *map;
> const char *type;
> @@ -114,7 +115,9 @@ OPT_STRING('t', "type", ¶m.type, "type", \
> OPT_STRING('a', "align", ¶m.align, "align", \
> "specify the namespace alignment in bytes (default: 2M)"), \
> OPT_BOOLEAN('f', "force", &force, "reconfigure namespace even if currently active"), \
> -OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels")
> +OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels"), \
> +OPT_BOOLEAN('c', "continue", ¶m.greedy, \
> + "continue creating namespaces as long as the filter criteria are met")
>
> #define CHECK_OPTIONS() \
> OPT_BOOLEAN('R', "repair", &repair, "perform metadata repairs"), \
> @@ -1365,8 +1368,11 @@ static int do_xaction_namespace(const char *namespace,
> rc = namespace_create(region);
> if (rc == -EAGAIN)
> continue;
> - if (rc == 0)
> - *processed = 1;
> + if (rc == 0) {
> + (*processed)++;
> + if (param.greedy)
> + continue;
> + }
> return rc;
> }
> ndctl_namespace_foreach_safe(region, ndns, _n) {
> @@ -1427,9 +1433,15 @@ static int do_xaction_namespace(const char *namespace,
> /*
> * Namespace creation searched through all candidate
> * regions and all of them said "nope, I don't have
> - * enough capacity", so report -ENOSPC
> + * enough capacity", so report -ENOSPC. Except during
> + * greedy namespace creation using --continue as we
> + * may have created some namespaces already, and the
> + * last one in the region search may preexist.
> */
> - rc = -ENOSPC;
> + if (param.greedy && (*processed) > 0)
> + rc = 0;
> + else
> + rc = -ENOSPC;
> }
>
> return rc;
> @@ -1487,6 +1499,9 @@ int cmd_create_namespace(int argc, const char **argv, struct ndctl_ctx *ctx)
> rc = do_xaction_namespace(NULL, ACTION_CREATE, ctx, &created);
> }
>
> + if (param.greedy)
> + fprintf(stderr, "created %d namespace%s\n", created,
> + created == 1 ? "" : "s");
> if (rc < 0 || (!namespace && created < 1)) {
> fprintf(stderr, "failed to %s namespace: %s\n", namespace
> ? "reconfigure" : "create", strerror(-rc));
> --
> 2.20.1
>
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 0:17 ` [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily Vishal Verma
2019-08-29 2:34 ` Dan Williams
@ 2019-08-29 17:38 ` jane.chu
2019-08-29 18:08 ` Verma, Vishal L
1 sibling, 1 reply; 11+ messages in thread
From: jane.chu @ 2019-08-29 17:38 UTC (permalink / raw)
To: Vishal Verma, linux-nvdimm; +Cc: Steve Scargall
Hi, Vishal,
On 8/28/19 5:17 PM, Vishal Verma wrote:
> Add a --continue option to ndctl-create-namespaces to allow the creation
> of as many namespaces as possible, that meet the given filter
> restrictions.
>
> The creation loop will be aborted if a failure is encountered at any
> point.
Just wondering what is the motivation behind providing this option?
thanks!
-jane
>
> Link: https://github.com/pmem/ndctl/issues/106
> Reported-by: Steve Scargal <steve.scargall@intel.com>
> Cc: Jeff Moyer <jmoyer@redhat.com>
> Cc: Dan Williams <dan.j.williams@intel.com>
> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
> ---
> .../ndctl/ndctl-create-namespace.txt | 7 ++++++
> ndctl/namespace.c | 25 +++++++++++++++----
> 2 files changed, 27 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/ndctl/ndctl-create-namespace.txt b/Documentation/ndctl/ndctl-create-namespace.txt
> index c9ae27c..55a8581 100644
> --- a/Documentation/ndctl/ndctl-create-namespace.txt
> +++ b/Documentation/ndctl/ndctl-create-namespace.txt
> @@ -215,6 +215,13 @@ include::xable-region-options.txt[]
> --bus=::
> include::xable-bus-options.txt[]
>
> +-c::
> +--continue::
> + Do not stop after creating one namespace. Instead, greedily create as
> + many namespaces as possible within the given --bus and --region filter
> + restrictions. This will abort if any creation attempt results in an
> + error.
> +
> include::../copyright.txt[]
>
> SEE ALSO
> diff --git a/ndctl/namespace.c b/ndctl/namespace.c
> index af20a42..8d6b249 100644
> --- a/ndctl/namespace.c
> +++ b/ndctl/namespace.c
> @@ -41,6 +41,7 @@ static struct parameters {
> bool do_scan;
> bool mode_default;
> bool autolabel;
> + bool greedy;
> const char *bus;
> const char *map;
> const char *type;
> @@ -114,7 +115,9 @@ OPT_STRING('t', "type", ¶m.type, "type", \
> OPT_STRING('a', "align", ¶m.align, "align", \
> "specify the namespace alignment in bytes (default: 2M)"), \
> OPT_BOOLEAN('f', "force", &force, "reconfigure namespace even if currently active"), \
> -OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels")
> +OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels"), \
> +OPT_BOOLEAN('c', "continue", ¶m.greedy, \
> + "continue creating namespaces as long as the filter criteria are met")
>
> #define CHECK_OPTIONS() \
> OPT_BOOLEAN('R', "repair", &repair, "perform metadata repairs"), \
> @@ -1365,8 +1368,11 @@ static int do_xaction_namespace(const char *namespace,
> rc = namespace_create(region);
> if (rc == -EAGAIN)
> continue;
> - if (rc == 0)
> - *processed = 1;
> + if (rc == 0) {
> + (*processed)++;
> + if (param.greedy)
> + continue;
> + }
> return rc;
> }
> ndctl_namespace_foreach_safe(region, ndns, _n) {
> @@ -1427,9 +1433,15 @@ static int do_xaction_namespace(const char *namespace,
> /*
> * Namespace creation searched through all candidate
> * regions and all of them said "nope, I don't have
> - * enough capacity", so report -ENOSPC
> + * enough capacity", so report -ENOSPC. Except during
> + * greedy namespace creation using --continue as we
> + * may have created some namespaces already, and the
> + * last one in the region search may preexist.
> */
> - rc = -ENOSPC;
> + if (param.greedy && (*processed) > 0)
> + rc = 0;
> + else
> + rc = -ENOSPC;
> }
>
> return rc;
> @@ -1487,6 +1499,9 @@ int cmd_create_namespace(int argc, const char **argv, struct ndctl_ctx *ctx)
> rc = do_xaction_namespace(NULL, ACTION_CREATE, ctx, &created);
> }
>
> + if (param.greedy)
> + fprintf(stderr, "created %d namespace%s\n", created,
> + created == 1 ? "" : "s");
> if (rc < 0 || (!namespace && created < 1)) {
> fprintf(stderr, "failed to %s namespace: %s\n", namespace
> ? "reconfigure" : "create", strerror(-rc));
>
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 2:34 ` Dan Williams
@ 2019-08-29 18:05 ` Verma, Vishal L
2019-08-29 19:08 ` Vishal Verma
0 siblings, 1 reply; 11+ messages in thread
From: Verma, Vishal L @ 2019-08-29 18:05 UTC (permalink / raw)
To: Williams, Dan J; +Cc: Scargall, Steve, linux-nvdimm
On Wed, 2019-08-28 at 19:34 -0700, Dan Williams wrote:
> On Wed, Aug 28, 2019 at 5:17 PM Vishal Verma <vishal.l.verma@intel.com> wrote:
> > Add a --continue option to ndctl-create-namespaces to allow the creation
> > of as many namespaces as possible, that meet the given filter
> > restrictions.
> >
> > The creation loop will be aborted if a failure is encountered at any
> > point.
> >
> > Link: https://github.com/pmem/ndctl/issues/106
> > Reported-by: Steve Scargal <steve.scargall@intel.com>
> > Cc: Jeff Moyer <jmoyer@redhat.com>
> > Cc: Dan Williams <dan.j.williams@intel.com>
> > Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
> > ---
> > .../ndctl/ndctl-create-namespace.txt | 7 ++++++
> > ndctl/namespace.c | 25 +++++++++++++++----
> > 2 files changed, 27 insertions(+), 5 deletions(-)
> >
> > diff --git a/Documentation/ndctl/ndctl-create-namespace.txt b/Documentation/ndctl/ndctl-create-namespace.txt
> > index c9ae27c..55a8581 100644
> > --- a/Documentation/ndctl/ndctl-create-namespace.txt
> > +++ b/Documentation/ndctl/ndctl-create-namespace.txt
> > @@ -215,6 +215,13 @@ include::xable-region-options.txt[]
> > --bus=::
> > include::xable-bus-options.txt[]
> >
> > +-c::
> > +--continue::
> > + Do not stop after creating one namespace. Instead, greedily create as
>
> I like the "greedy" terminology here because it makes the option seem
> a bit off-putting. "Do you really want to be greedy?"
Ha, I just borrowed it from regular expressions :)
>
> > + many namespaces as possible within the given --bus and --region filter
> > + restrictions. This will abort if any creation attempt results in an
> > + error.
>
> Hmm, should "--continue --force" override that policy?
Yep that's a good idea, with a big note in the man page that errors
could be lost/meaningless in that case.
>
> Otherwise this looks good to me.
Thanks, I'll send a new version with the above.
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 17:38 ` jane.chu
@ 2019-08-29 18:08 ` Verma, Vishal L
2019-08-29 18:28 ` Dan Williams
0 siblings, 1 reply; 11+ messages in thread
From: Verma, Vishal L @ 2019-08-29 18:08 UTC (permalink / raw)
To: jane.chu, linux-nvdimm; +Cc: Scargall, Steve
On Thu, 2019-08-29 at 10:38 -0700, jane.chu@oracle.com wrote:
> Hi, Vishal,
>
>
> On 8/28/19 5:17 PM, Vishal Verma wrote:
> > Add a --continue option to ndctl-create-namespaces to allow the creation
> > of as many namespaces as possible, that meet the given filter
> > restrictions.
> >
> > The creation loop will be aborted if a failure is encountered at any
> > point.
>
> Just wondering what is the motivation behind providing this option?
Hi Jane,
See Steve's email here:
https://lists.01.org/pipermail/linux-nvdimm/2019-August/023390.html
Essentially it lets sysadmins create a simple, maximal configuration
without everyone having to script it.
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 18:08 ` Verma, Vishal L
@ 2019-08-29 18:28 ` Dan Williams
2019-08-29 19:16 ` jane.chu
0 siblings, 1 reply; 11+ messages in thread
From: Dan Williams @ 2019-08-29 18:28 UTC (permalink / raw)
To: Verma, Vishal L; +Cc: Scargall, Steve, linux-nvdimm
On Thu, Aug 29, 2019 at 11:08 AM Verma, Vishal L
<vishal.l.verma@intel.com> wrote:
>
> On Thu, 2019-08-29 at 10:38 -0700, jane.chu@oracle.com wrote:
> > Hi, Vishal,
> >
> >
> > On 8/28/19 5:17 PM, Vishal Verma wrote:
> > > Add a --continue option to ndctl-create-namespaces to allow the creation
> > > of as many namespaces as possible, that meet the given filter
> > > restrictions.
> > >
> > > The creation loop will be aborted if a failure is encountered at any
> > > point.
> >
> > Just wondering what is the motivation behind providing this option?
>
> Hi Jane,
>
> See Steve's email here:
> https://lists.01.org/pipermail/linux-nvdimm/2019-August/023390.html
>
> Essentially it lets sysadmins create a simple, maximal configuration
> without everyone having to script it.
It also gives a touch point to start thinking about parallel namespace
creation. The large advancements in boot time that Alex achieved were
mainly from parallelizing namespace init. With --continue we could
batch the namespace enable calls and kick off a bind thread per
namespace.
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 18:05 ` Verma, Vishal L
@ 2019-08-29 19:08 ` Vishal Verma
0 siblings, 0 replies; 11+ messages in thread
From: Vishal Verma @ 2019-08-29 19:08 UTC (permalink / raw)
To: Williams, Dan J; +Cc: Scargall, Steve, linux-nvdimm
On 08/29, Verma, Vishal L wrote:
> On Wed, 2019-08-28 at 19:34 -0700, Dan Williams wrote:
> >
> > Hmm, should "--continue --force" override that policy?
>
> Yep that's a good idea, with a big note in the man page that errors
> could be lost/meaningless in that case.
>
> >
> > Otherwise this looks good to me.
>
> Thanks, I'll send a new version with the above.
> _______________________________________________
Here is v2 with the --force change:
3<----
>From a91425beabae750227931594f77fe3db72b4cfff Mon Sep 17 00:00:00 2001
From: Vishal Verma <vishal.l.verma@intel.com>
Date: Wed, 28 Aug 2019 18:01:38 -0600
Subject: [ndctl PATCH v2] ndctl/namespace: add a --continue option to create
namespaces greedily
Add a --continue option to ndctl-create-namespaces to allow the creation
of as many namespaces as possible, that meet the given filter
restrictions.
The creation loop will be aborted if a failure is encountered at any
point, unless --force is also specified.
Link: https://github.com/pmem/ndctl/issues/106
Reported-by: Steve Scargal <steve.scargall@intel.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
v2: Allow --force to continue in spite of errors (Dan)
.../ndctl/ndctl-create-namespace.txt | 11 +++++-
ndctl/namespace.c | 34 +++++++++++++++----
2 files changed, 38 insertions(+), 7 deletions(-)
diff --git a/Documentation/ndctl/ndctl-create-namespace.txt b/Documentation/ndctl/ndctl-create-namespace.txt
index c9ae27c..e29a5e7 100644
--- a/Documentation/ndctl/ndctl-create-namespace.txt
+++ b/Documentation/ndctl/ndctl-create-namespace.txt
@@ -152,6 +152,13 @@ OPTIONS
namespace directly ("--map=dev"). The overhead is 64-bytes per
4K (16GB per 1TB) on x86.
+-c::
+--continue::
+ Do not stop after creating one namespace. Instead, greedily create as
+ many namespaces as possible within the given --bus and --region filter
+ restrictions. This will abort if any creation attempt results in an
+ error unless --force is also supplied.
+
-f::
--force::
Unless this option is specified the 'reconfigure namespace'
@@ -160,7 +167,9 @@ OPTIONS
the operation is attempted. However, if the namespace is
mounted then the 'disable namespace' and 'reconfigure
namespace' operations will be aborted. The namespace must be
- unmounted before being reconfigured.
+ unmounted before being reconfigured. When used in conjunction
+ with --continue, continue the namespace creation loop even
+ if an error is encountered for intermediate namespaces.
-L::
--autolabel::
diff --git a/ndctl/namespace.c b/ndctl/namespace.c
index af20a42..67768f3 100644
--- a/ndctl/namespace.c
+++ b/ndctl/namespace.c
@@ -41,6 +41,7 @@ static struct parameters {
bool do_scan;
bool mode_default;
bool autolabel;
+ bool greedy;
const char *bus;
const char *map;
const char *type;
@@ -114,7 +115,9 @@ OPT_STRING('t', "type", ¶m.type, "type", \
OPT_STRING('a', "align", ¶m.align, "align", \
"specify the namespace alignment in bytes (default: 2M)"), \
OPT_BOOLEAN('f', "force", &force, "reconfigure namespace even if currently active"), \
-OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels")
+OPT_BOOLEAN('L', "autolabel", ¶m.autolabel, "automatically initialize labels"), \
+OPT_BOOLEAN('c', "continue", ¶m.greedy, \
+ "continue creating namespaces as long as the filter criteria are met")
#define CHECK_OPTIONS() \
OPT_BOOLEAN('R', "repair", &repair, "perform metadata repairs"), \
@@ -1322,10 +1325,10 @@ static int do_xaction_namespace(const char *namespace,
int *processed)
{
struct ndctl_namespace *ndns, *_n;
+ int rc = -ENXIO, saved_rc = 0;
struct ndctl_region *region;
const char *ndns_name;
struct ndctl_bus *bus;
- int rc = -ENXIO;
*processed = 0;
@@ -1365,8 +1368,16 @@ static int do_xaction_namespace(const char *namespace,
rc = namespace_create(region);
if (rc == -EAGAIN)
continue;
- if (rc == 0)
- *processed = 1;
+ if (rc == 0) {
+ (*processed)++;
+ if (param.greedy)
+ continue;
+ }
+ if (force) {
+ if (rc)
+ saved_rc = rc;
+ continue;
+ }
return rc;
}
ndctl_namespace_foreach_safe(region, ndns, _n) {
@@ -1427,10 +1438,18 @@ static int do_xaction_namespace(const char *namespace,
/*
* Namespace creation searched through all candidate
* regions and all of them said "nope, I don't have
- * enough capacity", so report -ENOSPC
+ * enough capacity", so report -ENOSPC. Except during
+ * greedy namespace creation using --continue as we
+ * may have created some namespaces already, and the
+ * last one in the region search may preexist.
*/
- rc = -ENOSPC;
+ if (param.greedy && (*processed) > 0)
+ rc = 0;
+ else
+ rc = -ENOSPC;
}
+ if (saved_rc)
+ rc = saved_rc;
return rc;
}
@@ -1487,6 +1506,9 @@ int cmd_create_namespace(int argc, const char **argv, struct ndctl_ctx *ctx)
rc = do_xaction_namespace(NULL, ACTION_CREATE, ctx, &created);
}
+ if (param.greedy)
+ fprintf(stderr, "created %d namespace%s\n", created,
+ created == 1 ? "" : "s");
if (rc < 0 || (!namespace && created < 1)) {
fprintf(stderr, "failed to %s namespace: %s\n", namespace
? "reconfigure" : "create", strerror(-rc));
--
2.20.1
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^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily
2019-08-29 18:28 ` Dan Williams
@ 2019-08-29 19:16 ` jane.chu
0 siblings, 0 replies; 11+ messages in thread
From: jane.chu @ 2019-08-29 19:16 UTC (permalink / raw)
To: Dan Williams, Verma, Vishal L; +Cc: Scargall, Steve, linux-nvdimm
On 8/29/19 11:28 AM, Dan Williams wrote:
> On Thu, Aug 29, 2019 at 11:08 AM Verma, Vishal L
> <vishal.l.verma@intel.com> wrote:
>>
>> On Thu, 2019-08-29 at 10:38 -0700, jane.chu@oracle.com wrote:
>>> Hi, Vishal,
>>>
>>>
>>> On 8/28/19 5:17 PM, Vishal Verma wrote:
>>>> Add a --continue option to ndctl-create-namespaces to allow the creation
>>>> of as many namespaces as possible, that meet the given filter
>>>> restrictions.
>>>>
>>>> The creation loop will be aborted if a failure is encountered at any
>>>> point.
>>>
>>> Just wondering what is the motivation behind providing this option?
>>
>> Hi Jane,
>>
>> See Steve's email here:
>> https://lists.01.org/pipermail/linux-nvdimm/2019-August/023390.html
>>
>> Essentially it lets sysadmins create a simple, maximal configuration
>> without everyone having to script it.
>
> It also gives a touch point to start thinking about parallel namespace
> creation. The large advancements in boot time that Alex achieved were
> mainly from parallelizing namespace init. With --continue we could
> batch the namespace enable calls and kick off a bind thread per
> namespace.
>
Thanks Dan! Sorry I was reading email backwards, just caught up with
the earlier discussions.
With the --continue option, assuming the --size option will be taken if
specified, it would be possible to end up with a large number of small
namespaces
with a simple command that runs for a long while, right? can it be
killed by ctrl-c once the innocent user regrets? :)
thanks,
-jane
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^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2019-08-29 19:18 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
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2019-08-29 0:17 [ndctl PATCH 0/3] greedy namespace creation Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 1/3] Documentation: refactor 'bus options' into its own include Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 2/3] Documentation: clarify bus/dimm/region filtering Vishal Verma
2019-08-29 0:17 ` [ndctl PATCH 3/3] ndctl/namespace: add a --continue option to create namespaces greedily Vishal Verma
2019-08-29 2:34 ` Dan Williams
2019-08-29 18:05 ` Verma, Vishal L
2019-08-29 19:08 ` Vishal Verma
2019-08-29 17:38 ` jane.chu
2019-08-29 18:08 ` Verma, Vishal L
2019-08-29 18:28 ` Dan Williams
2019-08-29 19:16 ` jane.chu
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