From d0ca798f960ad7d86f5186fe312c131d00563eb7 Mon Sep 17 00:00:00 2001 From: Wenwei Tao Date: Tue, 12 Jan 2016 07:49:24 +0100 Subject: [PATCH] lightnvm: put block back to gc list on its reclaim fail MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We delete a block from the gc list before reclaim it, so put it back to the list on its reclaim fail, otherwise this block will not get reclaimed and be programmable in the future. Signed-off-by: Wenwei Tao Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/rrpc.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c index 5df4a696184a..bee2352fcce1 100644 --- a/drivers/lightnvm/rrpc.c +++ b/drivers/lightnvm/rrpc.c @@ -381,16 +381,26 @@ static void rrpc_block_gc(struct work_struct *work) struct rrpc *rrpc = gcb->rrpc; struct rrpc_block *rblk = gcb->rblk; struct nvm_dev *dev = rrpc->dev; + struct nvm_lun *lun = rblk->parent->lun; + struct rrpc_lun *rlun = &rrpc->luns[lun->id - rrpc->lun_offset]; + mempool_free(gcb, rrpc->gcb_pool); pr_debug("nvm: block '%lu' being reclaimed\n", rblk->parent->id); if (rrpc_move_valid_pages(rrpc, rblk)) - goto done; + goto put_back; + + if (nvm_erase_blk(dev, rblk->parent)) + goto put_back; - nvm_erase_blk(dev, rblk->parent); rrpc_put_blk(rrpc, rblk); -done: - mempool_free(gcb, rrpc->gcb_pool); + + return; + +put_back: + spin_lock(&rlun->lock); + list_add_tail(&rblk->prio, &rlun->prio_list); + spin_unlock(&rlun->lock); } /* the block with highest number of invalid pages, will be in the beginning