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authorIgor Konopko <igor.j.konopko@intel.com>2018-12-11 22:16:25 +0300
committerJens Axboe <axboe@kernel.dk>2018-12-11 22:22:35 +0300
commita16816b9e462e8ee86a908606bde54b53cfeca80 (patch)
tree3708bab87ed721388fec3e349f8e33b8fb26eb5b /drivers/lightnvm
parent24828d0536bbedc9b265f2b01ffca99de3f6a7c7 (diff)
downloadlinux-a16816b9e462e8ee86a908606bde54b53cfeca80.tar.xz
lightnvm: disable interleaved metadata
Currently pblk only check the size of I/O metadata and does not take into account if this metadata is in a separate buffer or interleaved in a single metadata buffer. In reality only the first scenario is supported, where second mode will break pblk functionality during any IO operation. This patch prevents pblk to be instantiated in case device only supports interleaved metadata. Reviewed-by: Javier González <javier@cnexlabs.com> Signed-off-by: Igor Konopko <igor.j.konopko@intel.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm')
-rw-r--r--drivers/lightnvm/pblk-init.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index ff6a6df369c3..e8055b796381 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -1175,6 +1175,12 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
return ERR_PTR(-EINVAL);
}
+ if (geo->ext) {
+ pblk_err(pblk, "extended metadata not supported\n");
+ kfree(pblk);
+ return ERR_PTR(-EINVAL);
+ }
+
spin_lock_init(&pblk->resubmit_lock);
spin_lock_init(&pblk->trans_lock);
spin_lock_init(&pblk->lock);