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-rw-r--r--mm/swapfile.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 4de7f02f820b..a1bc6b9af9a2 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1974,12 +1974,14 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
1974 goto bad_swap; 1974 goto bad_swap;
1975 } 1975 }
1976 1976
1977 if (blk_queue_nonrot(bdev_get_queue(p->bdev))) { 1977 if (p->bdev) {
1978 p->flags |= SWP_SOLIDSTATE; 1978 if (blk_queue_nonrot(bdev_get_queue(p->bdev))) {
1979 p->cluster_next = 1 + (random32() % p->highest_bit); 1979 p->flags |= SWP_SOLIDSTATE;
1980 p->cluster_next = 1 + (random32() % p->highest_bit);
1981 }
1982 if (discard_swap(p) == 0)
1983 p->flags |= SWP_DISCARDABLE;
1980 } 1984 }
1981 if (discard_swap(p) == 0)
1982 p->flags |= SWP_DISCARDABLE;
1983 1985
1984 mutex_lock(&swapon_mutex); 1986 mutex_lock(&swapon_mutex);
1985 spin_lock(&swap_lock); 1987 spin_lock(&swap_lock);