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lightnvm: set default lun range when no luns are specified

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The create target ioctl takes a lun begin and lun end parameter, which
defines the range of luns to initialize a target with. If the user does
not set the parameters, it default to only using lun 0. Instead,
defaults to use all luns in the OCSSD, as it is the usual behaviour
users want.

Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Matias Bjørling 2017-02-15 16:25:33 +01:00 committed by Jens Axboe
parent 0e5ffd1cb5
commit 6732c74010
1 changed files with 5 additions and 0 deletions
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5
drivers/lightnvm/core.c
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@ -1102,6 +1102,11 @@ static int __nvm_configure_create(struct nvm_ioctl_create *create)
}
s = &create->conf.s;
if (s->lun_begin == -1 && s->lun_end == -1) {
s->lun_begin = 0;
s->lun_end = dev->geo.nr_luns - 1;
}
if (s->lun_begin > s->lun_end || s->lun_end >= dev->geo.nr_luns) {
pr_err("nvm: lun out of bound (%u:%u > %u)\n",
s->lun_begin, s->lun_end, dev->geo.nr_luns - 1);