[Bluetooth] Fix reference count when connection lookup fails

[pandora-kernel.git] / mm / swapfile.c

diff --git a/mm/swapfile.c b/mm/swapfile.c
index fbceed6..a15def6 100644 (file)
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -5,7 +5,6 @@
  *  Swap reorganised 29.12.95, Stephen Tweedie
  */
 
-#include <linux/config.h>
 #include <linux/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/mman.h>
@@ -443,11 +442,12 @@ int swap_type_of(dev_t device)
 
                if (!(swap_info[i].flags & SWP_WRITEOK))
                        continue;
+
                if (!device) {
                        spin_unlock(&swap_lock);
                        return i;
                }
-               inode = swap_info->swap_file->f_dentry->d_inode;
+               inode = swap_info[i].swap_file->f_dentry->d_inode;
                if (S_ISBLK(inode->i_mode) &&
                    device == MKDEV(imajor(inode), iminor(inode))) {
                        spin_unlock(&swap_lock);
@@ -772,10 +772,8 @@ static int try_to_unuse(unsigned int type)
                        while (*swap_map > 1 && !retval &&
                                        (p = p->next) != &start_mm->mmlist) {
                                mm = list_entry(p, struct mm_struct, mmlist);
-                               if (atomic_inc_return(&mm->mm_users) == 1) {
-                                       atomic_dec(&mm->mm_users);
+                               if (!atomic_inc_not_zero(&mm->mm_users))
                                        continue;
-                               }
                                spin_unlock(&mmlist_lock);
                                mmput(prev_mm);
                                prev_mm = mm;
@@ -1479,8 +1477,7 @@ asmlinkage long sys_swapon(const char __user * specialfile, int swap_flags)
                error = -EINVAL;
                goto bad_swap;
        }
-       page = read_cache_page(mapping, 0,
-                       (filler_t *)mapping->a_ops->readpage, swap_file);
+       page = read_mapping_page(mapping, 0, swap_file);
        if (IS_ERR(page)) {
                error = PTR_ERR(page);
                goto bad_swap;
@@ -1726,13 +1723,14 @@ get_swap_info_struct(unsigned type)
  */
 int valid_swaphandles(swp_entry_t entry, unsigned long *offset)
 {
-       int ret = 0, i = 1 << page_cluster;
+       int our_page_cluster = page_cluster;
+       int ret = 0, i = 1 << our_page_cluster;
        unsigned long toff;
        struct swap_info_struct *swapdev = swp_type(entry) + swap_info;
 
-       if (!page_cluster)      /* no readahead */
+       if (!our_page_cluster)  /* no readahead */
                return 0;
-       toff = (swp_offset(entry) >> page_cluster) << page_cluster;
+       toff = (swp_offset(entry) >> our_page_cluster) << our_page_cluster;
        if (!toff)              /* first page is swap header */
                toff++, i--;
        *offset = toff;