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Go Back   Linux Archive > Redhat > Cluster Development

 
 
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Old 01-19-2011, 12:25 AM
Lon Hohberger
 
Default fence_scsi: identify dm-multipath devices correctly

On Tue, 2011-01-18 at 14:42 -0600, Ryan O'Hara wrote:
> Previously, fence_scsi would only identify /dev/dm* devices as being
> multipath devices. This prevented the use of "friendly" dm-multipath
> names (eg. /dev/mapper/mpath1). Since fence_scsi can now be passed
> devices to operate on, it should be able to handle "friendly" names,
> too. This patch fixes the problem by getting the absolute path of the
> device at registration time.
>
> Resolves: rhbz#644389
>
> Signed-off-by: Ryan O'Hara <rohara@redhat.com>
> ---
> fence/agents/scsi/fence_scsi.pl | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/fence/agents/scsi/fence_scsi.pl b/fence/agents/scsi/fence_scsi.pl
> index 9ee8917..8ddde4e 100644
> --- a/fence/agents/scsi/fence_scsi.pl
> +++ b/fence/agents/scsi/fence_scsi.pl
> @@ -1,5 +1,6 @@
> #!/usr/bin/perl
>
> +use Cwd 'realpath';
> use File::Basename;
> use Getopt::Std;
> use POSIX;
> @@ -112,6 +113,8 @@ sub do_register ($$$)
> my $self = (caller(0))[3];
> my ($host_key, $node_key, $dev) = @_;
>
> + $dev = realpath ($dev);
> +
> if (substr ($dev, 5) =~ /^dm/) {
> my @slaves = get_mpath_slaves ($dev);
> foreach (@slaves) {
> @@ -139,6 +142,8 @@ sub do_register_ignore ($$)
> my $self = (caller(0))[3];
> my ($node_key, $dev) = @_;
>
> + $dev = realpath ($dev);
> +
> if (substr ($dev, 5) =~ /^dm/) {
> my @slaves = get_mpath_slaves ($dev);
> foreach (@slaves) {

ACK; this is fine

-- Lon
 

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