linux-kernel@vger.kernel.org

From: Ulrich Weigand (weigand@immd1.informatik.uni-erlangen.de)
Date: Wed Jan 30 2002 - 20:02:04 EST

Momchil Velikov wrote:

+int move_from_swap_cache(struct page *page, unsigned long index,
+ struct address_space *mapping)
+{
+ void **pslot;
+ int err;
+
+ if (!PageLocked(page))
+ BUG();
+
+ spin_lock(&swapper_space.i_shared_lock);
+ spin_lock(&mapping->i_shared_lock);
+
+ err = radix_tree_reserve(&mapping->page_tree, index, &pslot);
+ if (!err) {
+ swp_entry_t entry;
+
+ block_flushpage(page, 0);
+ entry.val = page->index;
+ __delete_from_swap_cache(page);
+ swap_free(entry);
+
+ *pslot = page;
+ page->flags = ((page->flags & ~(1 << PG_uptodate | 1 << PG_error
+ | 1 << PG_referenced | 1 << PG_arch_1
+ | 1 << PG_checked))
+ | (1 << PG_dirty));
+ page->index = index;
+ add_page_to_inode_queue (mapping, page);
+ atomic_inc(&page_cache_size);
+ }
+
+ spin_lock(&mapping->i_shared_lock);
+ spin_lock(&swapper_space.i_shared_lock);

Don't you mean spin_unlock here?

Bye,
Ulrich 

-- 
  Dr. Ulrich Weigand
  weigand@informatik.uni-erlangen.de
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This archive was generated by hypermail 2b29 : Thu Jan 31 2002 - 21:01:28 EST