mm: spinlock tree_lock

[linux-2.6-omap-h63xx.git] / fs / buffer.c

diff --git a/fs/buffer.c b/fs/buffer.c
index d48caee12e2a4adaae056451f7dcef71205ccfa5..109b261192d908516c403d7ceaa1b0a1b4011b44 100644 (file)
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -706,7 +706,7 @@ static int __set_page_dirty(struct page *page,
        if (TestSetPageDirty(page))
                return 0;
 
-       write_lock_irq(&mapping->tree_lock);
+       spin_lock_irq(&mapping->tree_lock);
        if (page->mapping) {    /* Race with truncate? */
                WARN_ON_ONCE(warn && !PageUptodate(page));
 
@@ -719,7 +719,7 @@ static int __set_page_dirty(struct page *page,
                radix_tree_tag_set(&mapping->page_tree,
                                page_index(page), PAGECACHE_TAG_DIRTY);
        }
-       write_unlock_irq(&mapping->tree_lock);
+       spin_unlock_irq(&mapping->tree_lock);
        __mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
 
        return 1;