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authorJavier González <jg@lightnvm.io>2017-06-30 17:56:43 +0200
committerJens Axboe <axboe@kernel.dk>2017-06-30 11:08:18 -0600
commita84ebb837b419787c2ece74efa566c998929cead (patch)
treed2479e93d9192bf36faac59229863ea41c3e88d4 /drivers/lightnvm
parent076984669db8476c3c9a9f6d0c59a8e2c7e0092f (diff)
downloadlinux-next-a84ebb837b419787c2ece74efa566c998929cead.tar.gz
lightnvm: pblk: set line bitmap check under debug
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>
Diffstat (limited to 'drivers/lightnvm')
-rw-r--r--drivers/lightnvm/pblk-core.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index e6f42cddc8ec..11fe0c5b2a9c 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -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)
{
struct pblk_line_mgmt *l_mg = &pblk->l_mg;
- struct pblk_line_meta *lm = &pblk->lm;
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),
"pblk: corrupt closed line %d\n", line->id);
+#endif
spin_lock(&l_mg->free_lock);
WARN_ON(!test_and_clear_bit(line->meta_line, &l_mg->meta_bitmap));