From 977fbdcd5986c9ff700bf276644d2b1973a53348 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Wed, 31 Jan 2018 16:17:36 -0800 Subject: mm: add unmap_mapping_pages() Several users of unmap_mapping_range() would prefer to express their range in pages rather than bytes. Unfortuately, on a 32-bit kernel, you have to remember to cast your page number to a 64-bit type before shifting it, and four places in the current tree didn't remember to do that. That's a sign of a bad interface. Conveniently, unmap_mapping_range() actually converts from bytes into pages, so hoist the guts of unmap_mapping_range() into a new function unmap_mapping_pages() and convert the callers which want to use pages. Link: http://lkml.kernel.org/r/20171206142627.GD32044@bombadil.infradead.org Signed-off-by: Matthew Wilcox Reported-by: "zhangyi (F)" Reviewed-by: Ross Zwisler Acked-by: Kirill A. Shutemov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/nommu.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'mm/nommu.c') diff --git a/mm/nommu.c b/mm/nommu.c index 17c00d93de2e..4b9864b17cb0 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1788,13 +1788,6 @@ unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr, return -ENOMEM; } -void unmap_mapping_range(struct address_space *mapping, - loff_t const holebegin, loff_t const holelen, - int even_cows) -{ -} -EXPORT_SYMBOL(unmap_mapping_range); - int filemap_fault(struct vm_fault *vmf) { BUG(); -- cgit v1.2.3