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

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Message-ID: <53B38434.7030500@huawei.com>
Date:	Wed, 2 Jul 2014 12:01:56 +0800
From:	Zhang Zhen <zhenzhang.zhang@...wei.com>
To:	<linux-ext4@...r.kernel.org>
CC:	<tytso@....edu>, Jan Kara <jack@...e.cz>
Subject: [PATCH] ext4: remove readpage() check up for mmap file

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

Signed-off-by: Zhang Zhen <zhenzhang.zhang@...wei.com>
---
 fs/ext4/file.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 8695f70..f5c0a17 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -202,8 +202,6 @@ 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


.




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