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lightnvm: pblk: correct valid lba count calculation

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During garbage collect, lbas being written can end up
being invalidated. Make sure that this is reflected in
the valid lba count.

Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Hans Holmberg 2017-10-13 14:46:42 +02:00 committed by Jens Axboe
parent d6b992f7ab
commit 03e868eb8a
1 changed files with 4 additions and 3 deletions
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7
drivers/lightnvm/pblk-map.c
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@ -45,6 +45,8 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry,
paddr = pblk_alloc_page(pblk, line, nr_secs);
for (i = 0; i < nr_secs; i++, paddr++) {
__le64 addr_empty = cpu_to_le64(ADDR_EMPTY);
/* ppa to be sent to the device */
ppa_list[i] = addr_to_gen_ppa(pblk, paddr, line->id);
@ -61,10 +63,9 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry,
w_ctx->ppa = ppa_list[i];
meta_list[i].lba = cpu_to_le64(w_ctx->lba);
lba_list[paddr] = cpu_to_le64(w_ctx->lba);
line->nr_valid_lbas++;
if (lba_list[paddr] != addr_empty)
line->nr_valid_lbas++;
} else {
__le64 addr_empty = cpu_to_le64(ADDR_EMPTY);
lba_list[paddr] = meta_list[i].lba = addr_empty;
__pblk_map_invalidate(pblk, line, paddr);
}