Re: [PATCH v4 02/11] block: Block Device Filtering Mechanism

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On 6/13/23 03:51, Randy Dunlap wrote:
> 
> On 6/9/23 04:58, Sergei Shtepa wrote:
>> diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
>> index b7b56871029c..7904f157b245 100644
>> --- a/include/uapi/linux/fs.h
>> +++ b/include/uapi/linux/fs.h
>> @@ -189,6 +189,9 @@ struct fsxattr {
>>   * A jump here: 130-136 are reserved for zoned block devices
>>   * (see uapi/linux/blkzoned.h)
>>   */
>> +#define BLKFILTER_ATTACH	_IOWR(0x12, 140, struct blkfilter_name)
>> +#define BLKFILTER_DETACH	_IOWR(0x12, 141, struct blkfilter_name)
>> +#define BLKFILTER_CTL		_IOWR(0x12, 142, struct blkfilter_ctl)
> 
> Please update Documentation/userspace-api/ioctl/ioctl-number.rst
> with the blkfilter ioctl number usage.

It seems to me that there is no need to change anything in the table of
numbers for 'blkfilter'. I think the existing record is enough:

0x10  20-2F  arch/s390/include/uapi/asm/hypfs.h
0x12  all    linux/fs.h
             linux/blkpg.h

Maybe it would probably be correct to specify the file 'uapi/linux/fs.h'?
And maybe we need to specify the request numbers for blksnap?

add ioctls numbers for blksnap

Asked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Sergei Shtepa <sergei.shtepa@xxxxxxxxx>
---
 Documentation/userspace-api/ioctl/ioctl-number.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst
index 176e8fc3f31b..96af64988251 100644
--- a/Documentation/userspace-api/ioctl/ioctl-number.rst
+++ b/Documentation/userspace-api/ioctl/ioctl-number.rst
@@ -202,6 +202,7 @@ Code  Seq#    Include File                                           Comments
 'V'   C0     linux/ivtvfb.h                                          conflict!
 'V'   C0     linux/ivtv.h                                            conflict!
 'V'   C0     media/si4713.h                                          conflict!
+'V'   00-1F  uapi/linux/blksnap.h                                    conflict!
 'W'   00-1F  linux/watchdog.h                                        conflict!
 'W'   00-1F  linux/wanrouter.h                                       conflict! (pre 3.9)
 'W'   00-3F  sound/asound.h                                          conflict!
-- 
2.20.1



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