diff options
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 38bdc439651a..5f73a8553371 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1344,7 +1344,8 @@ static void swap_entry_free(struct swap_info_struct *p, swp_entry_t entry) } static void cluster_swap_free_nr(struct swap_info_struct *sis, - unsigned long offset, int nr_pages) + unsigned long offset, int nr_pages, + unsigned char usage) { struct swap_cluster_info *ci; DECLARE_BITMAP(to_free, BITS_PER_LONG) = { 0 }; @@ -1354,7 +1355,7 @@ static void cluster_swap_free_nr(struct swap_info_struct *sis, while (nr_pages) { nr = min(BITS_PER_LONG, nr_pages); for (i = 0; i < nr; i++) { - if (!__swap_entry_free_locked(sis, offset + i, 1)) + if (!__swap_entry_free_locked(sis, offset + i, usage)) bitmap_set(to_free, i, 1); } if (!bitmap_empty(to_free, BITS_PER_LONG)) { @@ -1388,7 +1389,7 @@ void swap_free_nr(swp_entry_t entry, int nr_pages) while (nr_pages) { nr = min_t(int, nr_pages, SWAPFILE_CLUSTER - offset % SWAPFILE_CLUSTER); - cluster_swap_free_nr(sis, offset, nr); + cluster_swap_free_nr(sis, offset, nr, 1); offset += nr; nr_pages -= nr; } @@ -3472,15 +3473,9 @@ int swapcache_prepare(swp_entry_t entry) void swapcache_clear(struct swap_info_struct *si, swp_entry_t entry) { - struct swap_cluster_info *ci; unsigned long offset = swp_offset(entry); - unsigned char usage; - ci = lock_cluster_or_swap_info(si, offset); - usage = __swap_entry_free_locked(si, offset, SWAP_HAS_CACHE); - unlock_cluster_or_swap_info(si, ci); - if (!usage) - free_swap_slot(entry); + cluster_swap_free_nr(si, offset, 1, SWAP_HAS_CACHE); } struct swap_info_struct *swp_swap_info(swp_entry_t entry) |