[dm-devel] [PATCH 2/2] dm: Add suspended check to multipath_message
malahal at us.ibm.com
malahal at us.ibm.com
Fri Nov 13 18:35:27 UTC 2009
Mike Anderson [andmike at linux.vnet.ibm.com] wrote:
> Add suspended check to multipath_message
>
> Signed-off-by: Mike Anderson <andmike at linux.vnet.ibm.com>
> ---
> drivers/md/dm-mpath.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
> index 32d0b87..ee56ef7 100644
> --- a/drivers/md/dm-mpath.c
> +++ b/drivers/md/dm-mpath.c
> @@ -1402,6 +1402,9 @@ static int multipath_message(struct dm_target *ti, unsigned argc, char **argv)
> struct multipath *m = (struct multipath *) ti->private;
> action_fn action;
>
> + if (dm_table_md_suspended(ti->table))
> + return -EBUSY;
Same question as DELETING. SUSPEND bit could be set just after the above
check. Is it OK if the following code executes after the SUSPEND bit is
set???
> +
> if (argc == 1) {
> if (!strnicmp(argv[0], MESG_STR("queue_if_no_path")))
> return queue_if_no_path(m, 1, 0);
>
> --
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