linux-ext4 - [PATCH v2] ext4: remove readpage() check up for mmap file

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 3 Jul 2014 14:18:31 +0800
From:	Zhang Zhen <zhenzhang.zhang@...wei.com>
To:	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
CC:	<wangnan0@...wei.com>, "Zwisler, Ross" <ross.zwisler@...el.com>,
	"tytso@....edu" <tytso@....edu>
Subject: [PATCH v2] ext4: remove readpage() check up for mmap file

There is no kind of file does not supply page reading function.

Change v1 -> v2:
- deleted the mapping variable

Signed-off-by: Zhang Zhen <zhenzhang.zhang@...wei.com>
---
 fs/ext4/file.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 8695f70..aca7b24 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -200,10 +200,6 @@ static const struct vm_operations_struct ext4_file_vm_ops = {

 static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	struct address_space *mapping = file->f_mapping;
-
-	if (!mapping->a_ops->readpage)
-		return -ENOEXEC;
 	file_accessed(file);
 	vma->vm_ops = &ext4_file_vm_ops;
 	return 0;
-- 
1.8.1.2


.




--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html