[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

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

diff --git a/mm/memory.c b/mm/memory.c
index 7197f9b..7a11ddd 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1784,13 +1784,13 @@ int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end)
        if (!inode->i_op || !inode->i_op->truncate_range)
                return -ENOSYS;
 
-       down(&inode->i_sem);
+       mutex_lock(&inode->i_mutex);
        down_write(&inode->i_alloc_sem);
        unmap_mapping_range(mapping, offset, (end - offset), 1);
        truncate_inode_pages_range(mapping, offset, end);
        inode->i_op->truncate_range(inode, offset, end);
        up_write(&inode->i_alloc_sem);
-       up(&inode->i_sem);
+       mutex_unlock(&inode->i_mutex);
 
        return 0;
 }
@@ -2267,6 +2267,8 @@ int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
        return handle_pte_fault(mm, vma, address, pte, pmd, write_access);
 }
 
+EXPORT_SYMBOL_GPL(__handle_mm_fault);
+
 #ifndef __PAGETABLE_PUD_FOLDED
 /*
  * Allocate page upper directory.