On Mon, Sep 26, 2016 at 06:12:24PM -0500, Shaun Tancheff wrote:
> Except our source locations are disjoint (stack and kcalloc'd).
Indeed.
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No objection here.
On Mon, Sep 26, 2016 at 6:30 PM, Damien Le Moal wrote:
>
> Christoph,
>
> On 9/27/16 01:37, Christoph Hellwig wrote:
>>> -/*
>>> - * Zone type.
>>> - */
>>> -enum blk_zone_type {
>>> -BLK_ZONE_TYPE_UNKNOWN,
>>> -BLK_ZONE_TYPE_CONVENTIONAL,
>>> -BLK_ZONE_TYPE_SEQWRIT
Christoph,
On 9/27/16 01:37, Christoph Hellwig wrote:
>> -/*
>> - * Zone type.
>> - */
>> -enum blk_zone_type {
>> -BLK_ZONE_TYPE_UNKNOWN,
>> -BLK_ZONE_TYPE_CONVENTIONAL,
>> -BLK_ZONE_TYPE_SEQWRITE_REQ,
>> -BLK_ZONE_TYPE_SEQWRITE_PREF,
>> -};
>
> Please don't move this code aroun
On Mon, Sep 26, 2016 at 11:37 AM, Christoph Hellwig wrote:
>> + zones = kzalloc(sizeof(struct blk_zone) * rep.nr_zones,
>> + GFP_KERNEL);
>> + if (!zones)
>> + return -ENOMEM;
>
> This should use kcalloc to get us underflow checking for the user
> controlled
> + zones = kzalloc(sizeof(struct blk_zone) * rep.nr_zones,
> + GFP_KERNEL);
> + if (!zones)
> + return -ENOMEM;
This should use kcalloc to get us underflow checking for the user
controlled allocation size.
> + if (copy_to_user(argp, &rep, sizeof(struct
From: Shaun Tancheff
Adds the new BLKREPORTZONE and BLKRESETZONE ioctls for respectively
obtaining the zone configuration of a zoned block device and resetting
the write pointer of sequential zones of a zoned block device.
The BLKREPORTZONE ioctl maps directly to a single call of the function
bl
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