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| author | Hans Holmberg <hans.holmberg@cnexlabs.com> | 2018-06-01 16:41:05 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-06-01 17:02:53 +0200 |
| commit | 6a3abf5beef6ae46381c1fb6976e6f313c40f0c1 (patch) | |
| tree | 0cb1da46fdb14e1a0de58d656331b0cc6c0c9082 /drivers/lightnvm/pblk.h | |
| parent | lightnvm: pblk: remove dead function (diff) | |
| download | linux-6a3abf5beef6ae46381c1fb6976e6f313c40f0c1.tar.xz linux-6a3abf5beef6ae46381c1fb6976e6f313c40f0c1.zip | |
lightnvm: pblk: rework write error recovery path
The write error recovery path is incomplete, so rework
the write error recovery handling to do resubmits directly
from the write buffer.
When a write error occurs, the remaining sectors in the chunk are
mapped out and invalidated and the request inserted in a resubmit list.
The writer thread checks if there are any requests to resubmit,
scans and invalidates any lbas that have been overwritten by later
writes and resubmits the failed entries.
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
| -rw-r--r-- | drivers/lightnvm/pblk.h | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index 9f22bbb54a6d..043a851a8e6c 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -128,7 +128,6 @@ struct pblk_pad_rq { struct pblk_rec_ctx { struct pblk *pblk; struct nvm_rq *rqd; - struct list_head failed; struct work_struct ws_rec; }; @@ -664,6 +663,9 @@ struct pblk { struct list_head compl_list; + spinlock_t resubmit_lock; /* Resubmit list lock */ + struct list_head resubmit_list; /* Resubmit list for failed writes*/ + mempool_t page_bio_pool; mempool_t gen_ws_pool; mempool_t rec_pool; @@ -713,9 +715,6 @@ void pblk_rb_sync_l2p(struct pblk_rb *rb); unsigned int pblk_rb_read_to_bio(struct pblk_rb *rb, struct nvm_rq *rqd, unsigned int pos, unsigned int nr_entries, unsigned int count); -unsigned int pblk_rb_read_to_bio_list(struct pblk_rb *rb, struct bio *bio, - struct list_head *list, - unsigned int max); int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba, struct ppa_addr ppa, int bio_iter, bool advanced_bio); unsigned int pblk_rb_read_commit(struct pblk_rb *rb, unsigned int entries); @@ -848,13 +847,9 @@ int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq); /* * pblk recovery */ -void pblk_submit_rec(struct work_struct *work); struct pblk_line *pblk_recov_l2p(struct pblk *pblk); int pblk_recov_pad(struct pblk *pblk); int pblk_recov_check_emeta(struct pblk *pblk, struct line_emeta *emeta); -int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx, - struct pblk_rec_ctx *recovery, u64 *comp_bits, - unsigned int comp); /* * pblk gc |