linux-kernel - [PATCH] f2fs: fix to handle F2FS_IOC_START_ATOMIC_REPLACE in f2fs_compat

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Message-Id: <20230128103226.1318362-1-chao@kernel.org>
Date:   Sat, 28 Jan 2023 18:32:26 +0800
From:   Chao Yu <chao@...nel.org>
To:     jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Chao Yu <chao@...nel.org>
Subject: [PATCH] f2fs: fix to handle F2FS_IOC_START_ATOMIC_REPLACE in f2fs_compat_ioctl()

Otherwise, 32-bits binary call ioctl(F2FS_IOC_START_ATOMIC_REPLACE) will
fail in 64-bits kernel.

Fixes: 41e8f85a75fc ("f2fs: introduce F2FS_IOC_START_ATOMIC_REPLACE")
Signed-off-by: Chao Yu <chao@...nel.org>
---
 fs/f2fs/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6f6181b9b01e..39e3e5c85e57 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4845,6 +4845,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case F2FS_IOC32_MOVE_RANGE:
 		return f2fs_compat_ioc_move_range(file, arg);
 	case F2FS_IOC_START_ATOMIC_WRITE:
+	case F2FS_IOC_START_ATOMIC_REPLACE:
 	case F2FS_IOC_COMMIT_ATOMIC_WRITE:
 	case F2FS_IOC_START_VOLATILE_WRITE:
 	case F2FS_IOC_RELEASE_VOLATILE_WRITE:
-- 
2.25.1