linux-kernel - [PATCH] ext4: change EXT4_IOC_GETSTATE ioctl to

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Message-Id: <20210830100508.56004-1-efremov@linux.com>
Date:   Mon, 30 Aug 2021 13:05:08 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     tytso@....edu, adilger.kernel@...ger.ca
Cc:     linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        Denis Efremov <efremov@...ux.com>
Subject: [PATCH] ext4: change EXT4_IOC_GETSTATE ioctl to _IOR

EXT4_IOC_GETSTATE is only used to read the state flags from the kernel.

Fixes: 1ad3ea6e0a69 ("ext4: add a new ioctl EXT4_IOC_GETSTATE")
Signed-off-by: Denis Efremov <efremov@...ux.com>
---
 fs/ext4/ext4.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 3c51e243450d..244b4dd193d3 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -718,7 +718,7 @@ enum {
 #define EXT4_IOC_PRECACHE_EXTENTS	_IO('f', 18)
 /* ioctl codes 19--39 are reserved for fscrypt */
 #define EXT4_IOC_CLEAR_ES_CACHE		_IO('f', 40)
-#define EXT4_IOC_GETSTATE		_IOW('f', 41, __u32)
+#define EXT4_IOC_GETSTATE		_IOR('f', 41, __u32)
 #define EXT4_IOC_GET_ES_CACHE		_IOWR('f', 42, struct fiemap)
 #define EXT4_IOC_CHECKPOINT		_IOW('f', 43, __u32)
 
-- 
2.31.1