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[07/18] make kpartx -d remove all partitions

Message ID 1444333491-16265-8-git-send-email-bmarzins@redhat.com (mailing list archive)
State Not Applicable, archived
Delegated to: Benjamin Marzinski
Headers show

Commit Message

Benjamin Marzinski Oct. 8, 2015, 7:44 p.m. UTC
Currently kpartx -d only removes the partitions that have entries in the
partition table.  If you remove a partition from the device, and then
run kpartx -d, it will not delete that partition (kpartx -u will).  I don't
see any value in leaving partition devices for partitions that don't even
exist anymore, so this patch makes -d delete all partitions.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 kpartx/kpartx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Hannes Reinecke Oct. 12, 2015, 6:46 a.m. UTC | #1
On 10/08/2015 09:44 PM, Benjamin Marzinski wrote:
> Currently kpartx -d only removes the partitions that have entries in the
> partition table.  If you remove a partition from the device, and then
> run kpartx -d, it will not delete that partition (kpartx -u will).  I don't
> see any value in leaving partition devices for partitions that don't even
> exist anymore, so this patch makes -d delete all partitions.
> 
> Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
> ---
>  kpartx/kpartx.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c
> index d69f9af..a9d4c98 100644
> --- a/kpartx/kpartx.c
> +++ b/kpartx/kpartx.c
> @@ -426,7 +426,7 @@ main(int argc, char **argv){
>  			break;
>  
>  		case DELETE:
> -			for (j = n-1; j >= 0; j--) {
> +			for (j = MAXSLICES-1; j >= 0; j--) {
>  				if (safe_sprintf(partname, "%s%s%d",
>  					     mapname, delim, j+1)) {
>  					fprintf(stderr, "partname too small\n");
> @@ -434,7 +434,7 @@ main(int argc, char **argv){
>  				}
>  				strip_slash(partname);
>  
> -				if (!slices[j].size || !dm_map_present(partname))
> +				if (!dm_map_present(partname))
>  					continue;
>  
>  				if (!dm_simplecmd(DM_DEVICE_REMOVE, partname,
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
diff mbox

Patch

diff --git a/kpartx/kpartx.c b/kpartx/kpartx.c
index d69f9af..a9d4c98 100644
--- a/kpartx/kpartx.c
+++ b/kpartx/kpartx.c
@@ -426,7 +426,7 @@  main(int argc, char **argv){
 			break;
 
 		case DELETE:
-			for (j = n-1; j >= 0; j--) {
+			for (j = MAXSLICES-1; j >= 0; j--) {
 				if (safe_sprintf(partname, "%s%s%d",
 					     mapname, delim, j+1)) {
 					fprintf(stderr, "partname too small\n");
@@ -434,7 +434,7 @@  main(int argc, char **argv){
 				}
 				strip_slash(partname);
 
-				if (!slices[j].size || !dm_map_present(partname))
+				if (!dm_map_present(partname))
 					continue;
 
 				if (!dm_simplecmd(DM_DEVICE_REMOVE, partname,