diff options
| author | Hans Holmberg <hans@owltronix.com> | 2018-01-05 16:16:10 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-01-05 18:50:12 +0300 |
| commit | 533657c190e5a94e585e08d1c4bdd2295c76391a (patch) | |
| tree | f5bbd43599c2f0cbd4be659ecc32a8e2235ab359 /drivers/lightnvm/pblk-write.c | |
| parent | 8154d296d904a6627d69878ab217ef6928335c2d (diff) | |
| download | linux-533657c190e5a94e585e08d1c4bdd2295c76391a.tar.xz | |
lightnvm: pblk: clear flush point on completed writes
Move completion of syncs and clearing of flush points to the
write completion path - this ensures that the data has been
comitted to the media before completing bios containing syncs.
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-write.c')
| -rw-r--r-- | drivers/lightnvm/pblk-write.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c index 018af87cadee..aae86ed60b98 100644 --- a/drivers/lightnvm/pblk-write.c +++ b/drivers/lightnvm/pblk-write.c @@ -21,13 +21,28 @@ static unsigned long pblk_end_w_bio(struct pblk *pblk, struct nvm_rq *rqd, struct pblk_c_ctx *c_ctx) { struct bio *original_bio; + struct pblk_rb *rwb = &pblk->rwb; unsigned long ret; int i; for (i = 0; i < c_ctx->nr_valid; i++) { struct pblk_w_ctx *w_ctx; + int pos = c_ctx->sentry + i; + int flags; + + w_ctx = pblk_rb_w_ctx(rwb, pos); + flags = READ_ONCE(w_ctx->flags); + + if (flags & PBLK_FLUSH_ENTRY) { + flags &= ~PBLK_FLUSH_ENTRY; + /* Release flags on context. Protect from writes */ + smp_store_release(&w_ctx->flags, flags); + +#ifdef CONFIG_NVM_DEBUG + atomic_dec(&rwb->inflight_flush_point); +#endif + } - w_ctx = pblk_rb_w_ctx(&pblk->rwb, c_ctx->sentry + i); while ((original_bio = bio_list_pop(&w_ctx->bios))) bio_endio(original_bio); } |