[PATCH v2 0/2] Fix force assemblation

[PATCH v2 0/2] Fix force assemblation

[Kinga Tanska]

Series of patches contains fix to prevent update operation
for container, when force assemblation is triggered. To unify all
uses of checking array level, inline function was introduced and
propagated.

Kinga Tanska (2):
  Assemble: check if device is container before scheduling force-clean
    update
  mdadm: replace container level checking with inline

 Assemble.c    | 10 ++++------
 Create.c      |  6 +++---
 Grow.c        |  6 +++---
 Incremental.c |  4 ++--
 mdadm.h       | 14 ++++++++++++++
 super-ddf.c   |  6 +++---
 super-intel.c |  4 ++--
 super0.c      |  2 +-
 super1.c      |  2 +-
 sysfs.c       |  2 +-
 10 files changed, 34 insertions(+), 22 deletions(-)

-- 
2.26.2

[PATCH v2 1/2] Assemble: check if device is container before scheduling force-clean update

[Kinga Tanska]

When assemble is used with --force flag and array is not clean then
"force-clean" update is scheduled. Containers are considered as not
clean because this field is not set for them. To exclude them from
meaningless update (it is ignored quietly) check if the device
is a container first.

Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>
---
 Assemble.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Assemble.c b/Assemble.c
index 704b8293..f31372db 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -1813,10 +1813,9 @@ try_again:
 		}
 #endif
 	}
-	if (c->force && !clean &&
+	if (c->force && !clean && content->array.level != LEVEL_CONTAINER &&
 	    !enough(content->array.level, content->array.raid_disks,
-		    content->array.layout, clean,
-		    avail)) {
+		    content->array.layout, clean, avail)) {
 		change += st->ss->update_super(st, content, "force-array",
 					       devices[chosen_drive].devname, c->verbose,
 					       0, NULL);
-- 
2.26.2

[PATCH v2 2/2] mdadm: replace container level checking with inline

[Kinga Tanska]

To unify all containers checks in code, is_container() function is
added and propagated.

Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>
---
 Assemble.c    |  5 ++---
 Create.c      |  6 +++---
 Grow.c        |  6 +++---
 Incremental.c |  4 ++--
 mdadm.h       | 14 ++++++++++++++
 super-ddf.c   |  6 +++---
 super-intel.c |  4 ++--
 super0.c      |  2 +-
 super1.c      |  2 +-
 sysfs.c       |  2 +-
 10 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/Assemble.c b/Assemble.c
index f31372db..27324939 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -1123,7 +1123,7 @@ static int start_array(int mdfd,
 			       i/2, mddev);
 	}
 
-	if (content->array.level == LEVEL_CONTAINER) {
+	if (is_container(content->array.level)) {
 		sysfs_rules_apply(mddev, content);
 		if (c->verbose >= 0) {
 			pr_err("Container %s has been assembled with %d drive%s",
@@ -1553,8 +1553,7 @@ try_again:
 			 */
 			trustworthy = LOCAL;
 
-		if (name[0] == 0 &&
-		    content->array.level == LEVEL_CONTAINER) {
+		if (!name[0] && is_container(content->array.level)) {
 			name = content->text_version;
 			trustworthy = METADATA;
 		}
diff --git a/Create.c b/Create.c
index 0ff1922d..6edc4ad3 100644
--- a/Create.c
+++ b/Create.c
@@ -472,7 +472,7 @@ int Create(struct supertype *st, char *mddev,
 			    st->minor_version >= 1)
 				/* metadata at front */
 				warn |= check_partitions(fd, dname, 0, 0);
-			else if (s->level == 1 || s->level == LEVEL_CONTAINER ||
+			else if (s->level == 1 || is_container(s->level) ||
 				 (s->level == 0 && s->raiddisks == 1))
 				/* partitions could be meaningful */
 				warn |= check_partitions(fd, dname, freesize*2, s->size*2);
@@ -982,7 +982,7 @@ int Create(struct supertype *st, char *mddev,
 			 * again returns container info.
 			 */
 			st->ss->getinfo_super(st, &info_new, NULL);
-			if (st->ss->external && s->level != LEVEL_CONTAINER &&
+			if (st->ss->external && !is_container(s->level) &&
 			    !same_uuid(info_new.uuid, info.uuid, 0)) {
 				map_update(&map, fd2devnm(mdfd),
 					   info_new.text_version,
@@ -1025,7 +1025,7 @@ int Create(struct supertype *st, char *mddev,
 	map_unlock(&map);
 	free(infos);
 
-	if (s->level == LEVEL_CONTAINER) {
+	if (is_container(s->level)) {
 		/* No need to start.  But we should signal udev to
 		 * create links */
 		sysfs_uevent(&info, "change");
diff --git a/Grow.c b/Grow.c
index 9c6fc95e..391c4212 100644
--- a/Grow.c
+++ b/Grow.c
@@ -2156,7 +2156,7 @@ size_change_error:
 					devname, s->size);
 		}
 		changed = 1;
-	} else if (array.level != LEVEL_CONTAINER) {
+	} else if (!is_container(array.level)) {
 		s->size = get_component_size(fd)/2;
 		if (s->size == 0)
 			s->size = array.size;
@@ -2212,7 +2212,7 @@ size_change_error:
 	info.component_size = s->size*2;
 	info.new_level = s->level;
 	info.new_chunk = s->chunk * 1024;
-	if (info.array.level == LEVEL_CONTAINER) {
+	if (is_container(info.array.level)) {
 		info.delta_disks = UnSet;
 		info.array.raid_disks = s->raiddisks;
 	} else if (s->raiddisks)
@@ -2325,7 +2325,7 @@ size_change_error:
 				printf("layout for %s set to %d\n",
 				       devname, array.layout);
 		}
-	} else if (array.level == LEVEL_CONTAINER) {
+	} else if (is_container(array.level)) {
 		/* This change is to be applied to every array in the
 		 * container.  This is only needed when the metadata imposes
 		 * restraints of the various arrays in the container.
diff --git a/Incremental.c b/Incremental.c
index a57fc323..077d4eea 100644
--- a/Incremental.c
+++ b/Incremental.c
@@ -244,7 +244,7 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
 		c->autof = ci->autof;
 
 	name_to_use = info.name;
-	if (name_to_use[0] == 0 && info.array.level == LEVEL_CONTAINER) {
+	if (name_to_use && is_container(info.array.level)) {
 		name_to_use = info.text_version;
 		trustworthy = METADATA;
 	}
@@ -472,7 +472,7 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
 
 	/* 7/ Is there enough devices to possibly start the array? */
 	/* 7a/ if not, finish with success. */
-	if (info.array.level == LEVEL_CONTAINER) {
+	if (is_container(info.array.level)) {
 		char devnm[32];
 		/* Try to assemble within the container */
 		sysfs_uevent(sra, "change");
diff --git a/mdadm.h b/mdadm.h
index c7268a71..72abfc50 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -1885,3 +1885,17 @@ enum r0layout {
  * This is true for native and DDF, IMSM allows 16.
  */
 #define MD_NAME_MAX 32
+
+/**
+ * is_container() - check if @level is &LEVEL_CONTAINER
+ * @level: level value
+ *
+ * return:
+ * 1 if level is equal to &LEVEL_CONTAINER, 0 otherwise.
+ */
+static inline int is_container(const int level)
+{
+	if (level == LEVEL_CONTAINER)
+		return 1;
+	return 0;
+}
\ No newline at end of file
diff --git a/super-ddf.c b/super-ddf.c
index 3f304cdc..bd366da2 100644
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -3345,7 +3345,7 @@ static int validate_geometry_ddf(struct supertype *st,
 
 	if (level == LEVEL_NONE)
 		level = LEVEL_CONTAINER;
-	if (level == LEVEL_CONTAINER) {
+	if (is_container(level)) {
 		/* Must be a fresh device to add to a container */
 		return validate_geometry_ddf_container(st, level, layout,
 						       raiddisks, *chunk,
@@ -3460,7 +3460,7 @@ validate_geometry_ddf_container(struct supertype *st,
 	int fd;
 	unsigned long long ldsize;
 
-	if (level != LEVEL_CONTAINER)
+	if (!is_container(level))
 		return 0;
 	if (!dev)
 		return 1;
@@ -3498,7 +3498,7 @@ static int validate_geometry_ddf_bvd(struct supertype *st,
 	struct dl *dl;
 	unsigned long long maxsize;
 	/* ddf/bvd supports lots of things, but not containers */
-	if (level == LEVEL_CONTAINER) {
+	if (is_container(level)) {
 		if (verbose)
 			pr_err("DDF cannot create a container within an container\n");
 		return 0;
diff --git a/super-intel.c b/super-intel.c
index d5fad102..7376a2e9 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -6661,7 +6661,7 @@ static int validate_geometry_imsm_container(struct supertype *st, int level,
 	struct intel_super *super = NULL;
 	int rv = 0;
 
-	if (level != LEVEL_CONTAINER)
+	if (!is_container(level))
 		return 0;
 	if (!dev)
 		return 1;
@@ -7580,7 +7580,7 @@ static int validate_geometry_imsm(struct supertype *st, int level, int layout,
 	 * if given unused devices create a container
 	 * if given given devices in a container create a member volume
 	 */
-	if (level == LEVEL_CONTAINER)
+	if (is_container(level))
 		/* Must be a fresh device to add to a container */
 		return validate_geometry_imsm_container(st, level, raiddisks,
 							data_offset, dev,
diff --git a/super0.c b/super0.c
index b79b97a9..87a4b374 100644
--- a/super0.c
+++ b/super0.c
@@ -1273,7 +1273,7 @@ static int validate_geometry0(struct supertype *st, int level,
 	if (get_linux_version() < 3001000)
 		tbmax = 2;
 
-	if (level == LEVEL_CONTAINER) {
+	if (is_container(level)) {
 		if (verbose)
 			pr_err("0.90 metadata does not support containers\n");
 		return 0;
diff --git a/super1.c b/super1.c
index a12a5bc8..d3a48478 100644
--- a/super1.c
+++ b/super1.c
@@ -2800,7 +2800,7 @@ static int validate_geometry1(struct supertype *st, int level,
 	unsigned long long overhead;
 	int fd;
 
-	if (level == LEVEL_CONTAINER) {
+	if (is_container(level)) {
 		if (verbose)
 			pr_err("1.x metadata does not support containers\n");
 		return 0;
diff --git a/sysfs.c b/sysfs.c
index 2995713d..054842c2 100644
--- a/sysfs.c
+++ b/sysfs.c
@@ -762,7 +762,7 @@ int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd, int resume)
 
 	rv = sysfs_set_num(sra, sd, "offset", sd->data_offset);
 	rv |= sysfs_set_num(sra, sd, "size", (sd->component_size+1) / 2);
-	if (sra->array.level != LEVEL_CONTAINER) {
+	if (!is_container(sra->array.level)) {
 		if (sra->consistency_policy == CONSISTENCY_POLICY_PPL) {
 			rv |= sysfs_set_num(sra, sd, "ppl_sector", sd->ppl_sector);
 			rv |= sysfs_set_num(sra, sd, "ppl_size", sd->ppl_size);
-- 
2.26.2

Re: [PATCH v2 1/2] Assemble: check if device is container before scheduling force-clean update

[Coly Li]

On 4/4/22 10:01 PM, Kinga Tanska wrote:
> When assemble is used with --force flag and array is not clean then
> "force-clean" update is scheduled. Containers are considered as not
> clean because this field is not set for them. To exclude them from
> meaningless update (it is ignored quietly) check if the device
> is a container first.
>
> Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>

Acked-by: Coly Li <colyli@suse.de>


Thanks.


Coly Li


> ---
>   Assemble.c | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/Assemble.c b/Assemble.c
> index 704b8293..f31372db 100644
> --- a/Assemble.c
> +++ b/Assemble.c
> @@ -1813,10 +1813,9 @@ try_again:
>   		}
>   #endif
>   	}
> -	if (c->force && !clean &&
> +	if (c->force && !clean && content->array.level != LEVEL_CONTAINER &&
>   	    !enough(content->array.level, content->array.raid_disks,
> -		    content->array.layout, clean,
> -		    avail)) {
> +		    content->array.layout, clean, avail)) {
>   		change += st->ss->update_super(st, content, "force-array",
>   					       devices[chosen_drive].devname, c->verbose,
>   					       0, NULL);

Re: [PATCH v2 2/2] mdadm: replace container level checking with inline

[Coly Li]

On 4/4/22 10:01 PM, Kinga Tanska wrote:
> To unify all containers checks in code, is_container() function is
> added and propagated.
>
> Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>
> ---
>   Assemble.c    |  5 ++---
>   Create.c      |  6 +++---
>   Grow.c        |  6 +++---
>   Incremental.c |  4 ++--
>   mdadm.h       | 14 ++++++++++++++
>   super-ddf.c   |  6 +++---
>   super-intel.c |  4 ++--
>   super0.c      |  2 +-
>   super1.c      |  2 +-
>   sysfs.c       |  2 +-
>   10 files changed, 32 insertions(+), 19 deletions(-)
>
snipped.


> diff --git a/Incremental.c b/Incremental.c
> index a57fc323..077d4eea 100644
> --- a/Incremental.c
> +++ b/Incremental.c
> @@ -244,7 +244,7 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
>   		c->autof = ci->autof;
>   
>   	name_to_use = info.name;
> -	if (name_to_use[0] == 0 && info.array.level == LEVEL_CONTAINER) {
> +	if (name_to_use && is_container(info.array.level)) {
>   		name_to_use = info.text_version;
>   		trustworthy = METADATA;
>   	}
I am not sure whether the above change is correct, name_to_use[0] is 
different from name_to_use.

The rested part of this patch is fine to me.


> @@ -472,7 +472,7 @@ int Incremental(struct mddev_dev *devlist, struct context *c,
>   
>   	/* 7/ Is there enough devices to possibly start the array? */
>   	/* 7a/ if not, finish with success. */
> -	if (info.array.level == LEVEL_CONTAINER) {
> +	if (is_container(info.array.level)) {
>   		char devnm[32];
>   		/* Try to assemble within the container */
>   		sysfs_uevent(sra, "change");


snipped.

Coly Li