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kasan: remove __kasan_unpoison_stack
[linux-2.6-microblaze.git]
/
mm
/
swapfile.c
diff --git
a/mm/swapfile.c
b/mm/swapfile.c
index
1c0a829
..
9fffc5a
100644
(file)
--- a/
mm/swapfile.c
+++ b/
mm/swapfile.c
@@
-1042,16
+1042,18
@@
int get_swap_pages(int n_goal, swp_entry_t swp_entries[], int entry_size)
/* Only single cluster request supported */
WARN_ON_ONCE(n_goal > 1 && size == SWAPFILE_CLUSTER);
/* Only single cluster request supported */
WARN_ON_ONCE(n_goal > 1 && size == SWAPFILE_CLUSTER);
+ spin_lock(&swap_avail_lock);
+
avail_pgs = atomic_long_read(&nr_swap_pages) / size;
avail_pgs = atomic_long_read(&nr_swap_pages) / size;
- if (avail_pgs <= 0)
+ if (avail_pgs <= 0) {
+ spin_unlock(&swap_avail_lock);
goto noswap;
goto noswap;
+ }
n_goal = min3((long)n_goal, (long)SWAP_BATCH, avail_pgs);
atomic_long_sub(n_goal * size, &nr_swap_pages);
n_goal = min3((long)n_goal, (long)SWAP_BATCH, avail_pgs);
atomic_long_sub(n_goal * size, &nr_swap_pages);
- spin_lock(&swap_avail_lock);
-
start_over:
node = numa_node_id();
plist_for_each_entry_safe(si, next, &swap_avail_heads[node], avail_lists[node]) {
start_over:
node = numa_node_id();
plist_for_each_entry_safe(si, next, &swap_avail_heads[node], avail_lists[node]) {
@@
-1125,14
+1127,13
@@
swp_entry_t get_swap_page_of_type(int type)
spin_lock(&si->lock);
if (si->flags & SWP_WRITEOK) {
spin_lock(&si->lock);
if (si->flags & SWP_WRITEOK) {
- atomic_long_dec(&nr_swap_pages);
/* This is called for allocating swap entry, not cache */
offset = scan_swap_map(si, 1);
if (offset) {
/* This is called for allocating swap entry, not cache */
offset = scan_swap_map(si, 1);
if (offset) {
+ atomic_long_dec(&nr_swap_pages);
spin_unlock(&si->lock);
return swp_entry(type, offset);
}
spin_unlock(&si->lock);
return swp_entry(type, offset);
}
- atomic_long_inc(&nr_swap_pages);
}
spin_unlock(&si->lock);
fail:
}
spin_unlock(&si->lock);
fail: