> 2023年12月24日 09:38，Jens Axboe <ax...@kernel.dk> 写道：
>
> On 12/23/23 5:32 PM, Coly Li wrote:
>>> 2023?12?24? 08:28?Coly Li <col...@suse.de> ???
>>>
>>> If prev_badblocks() returns '-1', it means no valid badblocks record
>>> before the checking range. It doesn't make sense to check whether
>>> the input checking range is overlapped with the non-existed invalid
>>> front range.
>>>
>>> This patch checkes whether 'prev >= 0' is true before calling
>>> overlap_front(), to void such invalid operations.
>>>
>>> Fixes: 3ea3354cb9f0 ("badblocks: improve badblocks_check() for multiple
>>> ranges handling")
>>> Reported-and-tested-by: Ira Weiny <ira.we...@intel.com>
>>> Signed-off-by: Coly Li <col...@suse.de>
>>> Link:
>>> https://lore.kernel.org/nvdimm/3035e75a-9be0-4bc3-8d4a-6e52c207f...@leemhuis.info/
>>> Cc: Dan Williams <dan.j.willi...@intel.com>
>>> Cc: Geliang Tang <geliang.t...@suse.com>
>>> Cc: Hannes Reinecke <h...@suse.de>
>>> Cc: Jens Axboe <ax...@kernel.dk>
>>> Cc: NeilBrown <ne...@suse.de>
>>> Cc: Vishal L Verma <vishal.l.ve...@intel.com>
>>> Cc: Xiao Ni <x...@redhat.com>
>>> ---
>>> block/badblocks.c | 6 ++++--
>>> 1 file changed, 4 insertions(+), 2 deletions(-)
>>
>> Hi Jens,
>>
>> Is it possible to take this fix into 6.7 still? Thanks in advance.
>
> Yep, we're still a few weeks out, so not a problem.
Jes and Ira,
Thank you all for fast response during holidays.
Happy holidays and merry Christmas!
Coly Li
