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-rw-r--r--mm/swapfile.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 057e6907bf7b..a4a80b9765b7 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -620,6 +620,7 @@ static void __del_from_avail_list(struct swap_info_struct *p)
{
int nid;
+ assert_spin_locked(&p->lock);
for_each_node(nid)
plist_del(&p->avail_lists[nid], &swap_avail_heads[nid]);
}
@@ -1008,6 +1009,7 @@ start_over:
goto check_out;
pr_debug("scan_swap_map of si %d failed to find offset\n",
si->type);
+ cond_resched();
spin_lock(&swap_avail_lock);
nextsi:
@@ -2574,8 +2576,8 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
spin_unlock(&swap_lock);
goto out_dput;
}
- del_from_avail_list(p);
spin_lock(&p->lock);
+ del_from_avail_list(p);
if (p->prio < 0) {
struct swap_info_struct *si = p;
int nid;