diff options
Diffstat (limited to 'mm/swapfile.c')
-rw-r--r-- | mm/swapfile.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index f1bf19daadc..9c590eef791 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -699,7 +699,7 @@ int free_swap_and_cache(swp_entry_t entry) struct swap_info_struct *p; struct page *page = NULL; - if (is_migration_entry(entry)) + if (non_swap_entry(entry)) return 1; p = swap_info_get(entry); @@ -1151,8 +1151,7 @@ static int try_to_unuse(unsigned int type) } else retval = unuse_mm(mm, entry, page); - if (set_start_mm && - swap_count(*swap_map) < swcount) { + if (set_start_mm && *swap_map < swcount) { mmput(new_start_mm); atomic_inc(&mm->mm_users); new_start_mm = mm; @@ -1974,12 +1973,14 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) goto bad_swap; } - if (blk_queue_nonrot(bdev_get_queue(p->bdev))) { - p->flags |= SWP_SOLIDSTATE; - p->cluster_next = 1 + (random32() % p->highest_bit); + if (p->bdev) { + if (blk_queue_nonrot(bdev_get_queue(p->bdev))) { + p->flags |= SWP_SOLIDSTATE; + p->cluster_next = 1 + (random32() % p->highest_bit); + } + if (discard_swap(p) == 0) + p->flags |= SWP_DISCARDABLE; } - if (discard_swap(p) == 0) - p->flags |= SWP_DISCARDABLE; mutex_lock(&swapon_mutex); spin_lock(&swap_lock); @@ -2085,7 +2086,7 @@ static int __swap_duplicate(swp_entry_t entry, bool cache) int count; bool has_cache; - if (is_migration_entry(entry)) + if (non_swap_entry(entry)) return -EINVAL; type = swp_type(entry); |