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lightnvm: pblk: set line bitmap check under debug

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Do bitmap checks only when debug mode is enable. The line bitmap used
for mapping to physical addresses is fairly large (~512KB) and it is
expensive to do this checks on the fast path.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González 2017-06-30 17:56:43 +02:00 committed by Jens Axboe
parent 076984669d
commit a84ebb837b
1 changed files with 4 additions and 1 deletions
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5
drivers/lightnvm/pblk-core.c
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@ -1561,11 +1561,14 @@ static void pblk_line_should_sync_meta(struct pblk *pblk)
void pblk_line_close(struct pblk *pblk, struct pblk_line *line) void pblk_line_close(struct pblk *pblk, struct pblk_line *line)
{ {
struct pblk_line_mgmt *l_mg = &pblk->l_mg; struct pblk_line_mgmt *l_mg = &pblk->l_mg;
struct pblk_line_meta *lm = &pblk->lm;
struct list_head *move_list; struct list_head *move_list;
#ifdef CONFIG_NVM_DEBUG
struct pblk_line_meta *lm = &pblk->lm;
WARN(!bitmap_full(line->map_bitmap, lm->sec_per_line), WARN(!bitmap_full(line->map_bitmap, lm->sec_per_line),
"pblk: corrupt closed line %d\n", line->id); "pblk: corrupt closed line %d\n", line->id);
#endif
spin_lock(&l_mg->free_lock); spin_lock(&l_mg->free_lock);
WARN_ON(!test_and_clear_bit(line->meta_line, &l_mg->meta_bitmap)); WARN_ON(!test_and_clear_bit(line->meta_line, &l_mg->meta_bitmap));