[PATCH] put_page() uses audited

Audit put_page() uses of pages that may be in the page cache.

Use page_cache_release() instead.

fs/binfmt_elf.c

@@ -33,6 +33,7 @@
 #include <linux/smp_lock.h>
 #include <linux/compiler.h>
 #include <linux/highmem.h>
+#include <linux/pagemap.h>
 
 #include <asm/uaccess.h>
 #include <asm/param.h>
@@ -1249,7 +1250,7 @@ static int elf_core_dump(long signr, struct pt_regs * regs, struct file * file)
 					flush_page_to_ram(page);
 					kunmap(page);
 				}
-				put_page(page);
+				page_cache_release(page);
 			}
 		}
 	}

fs/smbfs/file.c

@@ -105,9 +105,9 @@ smb_readpage(struct file *file, struct page *page)
 	int		error;
 	struct dentry  *dentry = file->f_dentry;
 
-	get_page(page);
+	page_cache_get(page);
 	error = smb_readpage_sync(dentry, page);
-	put_page(page);
+	page_cache_release(page);
 	return error;
 }
 
@@ -194,11 +194,11 @@ smb_writepage(struct page *page)
 	if (page->index >= end_index+1 || !offset)
 		return -EIO;
 do_it:
-	get_page(page);
+	page_cache_get(page);
 	err = smb_writepage_sync(inode, page, 0, offset);
 	SetPageUptodate(page);
 	unlock_page(page);
-	put_page(page);
+	page_cache_release(page);
 	return err;
 }
 

kernel/ptrace.c

@@ -11,6 +11,7 @@
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
+#include <linux/pagemap.h>
 #include <linux/smp_lock.h>
 
 #include <asm/pgtable.h>