diff options
| author | Alan Cox <alc@FreeBSD.org> | 2018-11-24 21:52:10 +0000 |
|---|---|---|
| committer | Alan Cox <alc@FreeBSD.org> | 2018-11-24 21:52:10 +0000 |
| commit | ee73fef96e402011fefbc364d66996655f11a81f (patch) | |
| tree | 26a3734a6f4cd6a6779235ffba8f06f75cbbd22b | |
| parent | 80203ccefd77badf5dc58a63047a1da2d303472c (diff) | |
Notes
| -rw-r--r-- | sys/kern/subr_blist.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/subr_blist.c b/sys/kern/subr_blist.c index 0e5156c5053c..21a1ab033535 100644 --- a/sys/kern/subr_blist.c +++ b/sys/kern/subr_blist.c @@ -764,6 +764,8 @@ blst_meta_alloc(blmeta_t *scan, daddr_t cursor, daddr_t count, u_daddr_t radix) /* Discard any candidates that appear before cursor. */ digit = (cursor / radix) & BLIST_META_MASK; mask &= (u_daddr_t)-1 << digit; + if (mask == 0) + return (SWAPBLK_NONE); /* * If the first try is for a block that includes the cursor, pre-undo |