x86: Remove local_irq_enable()/local_irq_disable() in fixup_irqs()

[mv-sheeva.git] / mm / swapfile.c

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 8ffdc0d23c536fe04779a9c559af68f6d9470997..a1bc6b9af9a23634f4185e85775d94a6500bbb0e 100644 (file)
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -161,7 +161,8 @@ static int discard_swap(struct swap_info_struct *si)
                }
 
                err = blkdev_issue_discard(si->bdev, start_block,
-                                               nr_blocks, GFP_KERNEL);
+                                               nr_blocks, GFP_KERNEL,
+                                               DISCARD_FL_BARRIER);
                if (err)
                        break;
 
@@ -200,7 +201,8 @@ static void discard_swap_cluster(struct swap_info_struct *si,
                        start_block <<= PAGE_SHIFT - 9;
                        nr_blocks <<= PAGE_SHIFT - 9;
                        if (blkdev_issue_discard(si->bdev, start_block,
-                                                       nr_blocks, GFP_NOIO))
+                                                       nr_blocks, GFP_NOIO,
+                                                       DISCARD_FL_BARRIER))
                                break;
                }
 
@@ -697,7 +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);
@@ -1573,9 +1575,9 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
        p->flags &= ~SWP_WRITEOK;
        spin_unlock(&swap_lock);
 
-       current->flags |= PF_SWAPOFF;
+       current->flags |= PF_OOM_ORIGIN;
        err = try_to_unuse(type);
-       current->flags &= ~PF_SWAPOFF;
+       current->flags &= ~PF_OOM_ORIGIN;
 
        if (err) {
                /* re-insert swap space back into swap_list */
@@ -1972,12 +1974,14 @@ 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);
@@ -2083,7 +2087,7 @@ 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);