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-rw-r--r--sys/vm/swap_pager.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
index d2189f2..faca864 100644
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -2569,7 +2569,7 @@ swaponvp(td, vp, dev, nblks)
* Do not free the first block in order to avoid overwriting
* any bsd label at the front of the partition
*/
- blist_free(sp->sw_blist, 1, nblks);
+ blist_free(sp->sw_blist, 1, nblks - 1);
TAILQ_INSERT_TAIL(&swtailq, sp, sw_list);
nswapdev++;
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