ARM: OMAP2+: PRCM: create SoC-specific chip restart functions

[firefly-linux-kernel-4.4.55.git] / mm / truncate.c

diff --git a/mm/truncate.c b/mm/truncate.c
index 61a183b89df6d15c358e7afc2b418411abe5e728..d51ce92d6e83fefd08c2594d3ef8d25b1575f577 100644 (file)
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -107,7 +107,6 @@ truncate_complete_page(struct address_space *mapping, struct page *page)
 
        cancel_dirty_page(page, PAGE_CACHE_SIZE);
 
-       clear_page_mlock(page);
        ClearPageMappedToDisk(page);
        delete_from_page_cache(page);
        return 0;
@@ -132,7 +131,6 @@ invalidate_complete_page(struct address_space *mapping, struct page *page)
        if (page_has_private(page) && !try_to_release_page(page, 0))
                return 0;
 
-       clear_page_mlock(page);
        ret = remove_mapping(mapping, page);
 
        return ret;
@@ -398,7 +396,6 @@ invalidate_complete_page2(struct address_space *mapping, struct page *page)
        if (PageDirty(page))
                goto failed;
 
-       clear_page_mlock(page);
        BUG_ON(page_has_private(page));
        __delete_from_page_cache(page);
        spin_unlock_irq(&mapping->tree_lock);
@@ -602,31 +599,6 @@ int vmtruncate(struct inode *inode, loff_t newsize)
 }
 EXPORT_SYMBOL(vmtruncate);
 
-int vmtruncate_range(struct inode *inode, loff_t lstart, loff_t lend)
-{
-       struct address_space *mapping = inode->i_mapping;
-       loff_t holebegin = round_up(lstart, PAGE_SIZE);
-       loff_t holelen = 1 + lend - holebegin;
-
-       /*
-        * If the underlying filesystem is not going to provide
-        * a way to truncate a range of blocks (punch a hole) -
-        * we should return failure right now.
-        */
-       if (!inode->i_op->truncate_range)
-               return -ENOSYS;
-
-       mutex_lock(&inode->i_mutex);
-       inode_dio_wait(inode);
-       unmap_mapping_range(mapping, holebegin, holelen, 1);
-       inode->i_op->truncate_range(inode, lstart, lend);
-       /* unmap again to remove racily COWed private pages */
-       unmap_mapping_range(mapping, holebegin, holelen, 1);
-       mutex_unlock(&inode->i_mutex);
-
-       return 0;
-}
-
 /**
  * truncate_pagecache_range - unmap and remove pagecache that is hole-punched
  * @inode: inode