diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/shmem.c | 2 | ||||
| -rw-r--r-- | mm/swap_state.c | 13 | ||||
| -rw-r--r-- | mm/swapfile.c | 16 | ||||
| -rw-r--r-- | mm/vmscan.c | 2 |
4 files changed, 19 insertions, 14 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index bbb987c58dad..a06f23731d3f 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1327,7 +1327,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) mutex_unlock(&shmem_swaplist_mutex); free_swap: - swapcache_free(swap); + put_swap_page(page, swap); redirty: set_page_dirty(page); if (wbc->for_reclaim) diff --git a/mm/swap_state.c b/mm/swap_state.c index 16ff89d058f4..0ad214d7a7ad 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -231,10 +231,7 @@ retry: return 1; fail_free: - if (PageTransHuge(page)) - swapcache_free_cluster(entry); - else - swapcache_free(entry); + put_swap_page(page, entry); fail: if (PageTransHuge(page) && !split_huge_page_to_list(page, list)) goto retry; @@ -259,11 +256,7 @@ void delete_from_swap_cache(struct page *page) __delete_from_swap_cache(page); spin_unlock_irq(&address_space->tree_lock); - if (PageTransHuge(page)) - swapcache_free_cluster(entry); - else - swapcache_free(entry); - + put_swap_page(page, entry); page_ref_sub(page, hpage_nr_pages(page)); } @@ -415,7 +408,7 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask, * add_to_swap_cache() doesn't return -EEXIST, so we can safely * clear SWAP_HAS_CACHE flag. */ - swapcache_free(entry); + put_swap_page(new_page, entry); } while (err != -ENOMEM); if (new_page) diff --git a/mm/swapfile.c b/mm/swapfile.c index 984f0dd94948..8a6cdf9e55f9 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1148,7 +1148,7 @@ void swap_free(swp_entry_t entry) /* * Called after dropping swapcache to decrease refcnt to swap entries. */ -void swapcache_free(swp_entry_t entry) +static void swapcache_free(swp_entry_t entry) { struct swap_info_struct *p; @@ -1160,7 +1160,7 @@ void swapcache_free(swp_entry_t entry) } #ifdef CONFIG_THP_SWAP -void swapcache_free_cluster(swp_entry_t entry) +static void swapcache_free_cluster(swp_entry_t entry) { unsigned long offset = swp_offset(entry); unsigned long idx = offset / SWAPFILE_CLUSTER; @@ -1184,8 +1184,20 @@ void swapcache_free_cluster(swp_entry_t entry) swap_free_cluster(si, idx); spin_unlock(&si->lock); } +#else +static inline void swapcache_free_cluster(swp_entry_t entry) +{ +} #endif /* CONFIG_THP_SWAP */ +void put_swap_page(struct page *page, swp_entry_t entry) +{ + if (!PageTransHuge(page)) + swapcache_free(entry); + else + swapcache_free_cluster(entry); +} + void swapcache_free_entries(swp_entry_t *entries, int n) { struct swap_info_struct *p, *prev; diff --git a/mm/vmscan.c b/mm/vmscan.c index a10e05870835..cb7c154a4a9d 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -708,7 +708,7 @@ static int __remove_mapping(struct address_space *mapping, struct page *page, mem_cgroup_swapout(page, swap); __delete_from_swap_cache(page); spin_unlock_irqrestore(&mapping->tree_lock, flags); - swapcache_free(swap); + put_swap_page(page, swap); } else { void (*freepage)(struct page *); void *shadow = NULL; |