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Diffstat (limited to 'mm')
-rw-r--r--mm/swapfile.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index d44b2d60a66a..d954b71c4f9c 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1223,8 +1223,8 @@ void put_swap_page(struct page *page, swp_entry_t entry)
if (!si)
return;
+ ci = lock_cluster_or_swap_info(si, offset);
if (size == SWAPFILE_CLUSTER) {
- ci = lock_cluster(si, offset);
VM_BUG_ON(!cluster_is_huge(ci));
map = si->swap_map + offset;
for (i = 0; i < SWAPFILE_CLUSTER; i++) {
@@ -1233,13 +1233,9 @@ void put_swap_page(struct page *page, swp_entry_t entry)
if (val == SWAP_HAS_CACHE)
free_entries++;
}
- if (!free_entries) {
- for (i = 0; i < SWAPFILE_CLUSTER; i++)
- map[i] &= ~SWAP_HAS_CACHE;
- }
cluster_clear_huge(ci);
- unlock_cluster(ci);
if (free_entries == SWAPFILE_CLUSTER) {
+ unlock_cluster_or_swap_info(si, ci);
spin_lock(&si->lock);
ci = lock_cluster(si, offset);
memset(map, 0, SWAPFILE_CLUSTER);
@@ -1250,12 +1246,16 @@ void put_swap_page(struct page *page, swp_entry_t entry)
return;
}
}
- if (size == 1 || free_entries) {
- for (i = 0; i < size; i++, entry.val++) {
- if (!__swap_entry_free(si, entry, SWAP_HAS_CACHE))
- free_swap_slot(entry);
+ for (i = 0; i < size; i++, entry.val++) {
+ if (!__swap_entry_free_locked(si, offset + i, SWAP_HAS_CACHE)) {
+ unlock_cluster_or_swap_info(si, ci);
+ free_swap_slot(entry);
+ if (i == size - 1)
+ return;
+ lock_cluster_or_swap_info(si, offset);
}
}
+ unlock_cluster_or_swap_info(si, ci);
}
#ifdef CONFIG_THP_SWAP