[LTP] [PATCH v1 01/10] lapi: Add a configure check and fallback for loop ioctl and flag

[Yang Xu]

Hi Cyril

Thanks for your review.
> Hi!
>> ---
>>   configure.ac        |  1 +
>>   include/lapi/loop.h | 35 +++++++++++++++++++++++++++++++++++
>>   2 files changed, 36 insertions(+)
>>   create mode 100644 include/lapi/loop.h
>>
>> diff --git a/configure.ac b/configure.ac
>> index e1069b57e..e088cb564 100644
>> --- a/configure.ac
>> +++ b/configure.ac
>> @@ -50,6 +50,7 @@ AC_CHECK_HEADERS([ \
>>       linux/if_ether.h \
>>       linux/if_packet.h \
>>       linux/keyctl.h \
>> +    linux/loop.h \
> 
> I do wonder if there is actually a distrbution without the linux/loop.h
> header, have you seen one?
> 
No, I don't see this distribution. We can remove this.
>>       linux/mempolicy.h \
>>       linux/module.h \
>>       linux/netlink.h \
>> diff --git a/include/lapi/loop.h b/include/lapi/loop.h
>> new file mode 100644
>> index 000000000..bc6d9950d
>> --- /dev/null
>> +++ b/include/lapi/loop.h
>> @@ -0,0 +1,35 @@
>> +// SPDX-License-Identifier: GPL-2.0-or-later
>> +/*
>> + * Copyright (c) 2020 FUJITSU LIMITED. All rights reserved.
>> + * Author: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
>> + */
>> +#ifndef LAPI_LOOP_H
>> +#define LAPI_LOOP_H
>> +
>> +#include <linux/types.h>
>> +#ifdef HAVE_LINUX_LOOP_H
>> +# include <linux/loop.h>
>> +#endif
>> +
>> +#ifndef LO_FLAGS_PARTSCAN
>> +# define LO_FLAGS_PARTSCAN 8
>> +#endif
>> +
>> +#ifndef LO_FLAGS_DIRECT_IO
>> +# define LO_FLAGS_DIRECT_IO 16
>> +#endif
>> +
>> +#ifndef LOOP_SET_CAPACITY
>> +# define LOOP_SET_CAPACITY 0x4C07
>> +#endif
>> +
>> +#ifndef LOOP_SET_DIRECT_IO
>> +# define LOOP_SET_DIRECT_IO 0x4C08
>> +#endif
>> +
>> +#ifndef LOOP_SET_BLOCK_SIZE
>> +# define LOOP_SET_BLOCK_SIZE 0x4C09
>> +#endif
>> +
>> +#endif
>> +
>> -- 
>> 2.23.0
>>
>>
>>
>>
>> -- 
>> Mailing list info: https://lists.linux.it/listinfo/ltp
>