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f2fs: don't allow volatile writes for non-regular file
Now f2fs only supports volatile writes for journal db regular file. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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@ -1598,6 +1598,9 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
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if (!inode_owner_or_capable(inode))
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return -EACCES;
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if (!S_ISREG(inode->i_mode))
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return -EINVAL;
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ret = mnt_want_write_file(filp);
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if (ret)
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return ret;
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