Re: [PATCH v6 2/2] block: Remove queue freezing from several sysfs store callbacks

[Nilay Shroff <nilay@linux.ibm.com>]

On 11/18/25 2:14 AM, Bart Van Assche wrote:
> On 11/17/25 1:01 AM, Nilay Shroff wrote:
>> This change look good to me however as I mentioned earlier,
>> introducing __data_racy would break the kernel build. So
>> are you going to raise a separate bug report to fix it?
>>
>>    AS      .tmp_vmlinux2.kallsyms.o
>>    LD      vmlinux.unstripped
>>    BTFIDS  vmlinux.unstripped
>> WARN: multiple IDs found for 'task_struct': 116, 10183 - using 116
>> WARN: multiple IDs found for 'module': 190, 10190 - using 190
>> WARN: multiple IDs found for 'vm_area_struct': 324, 10227 - using 324
>> WARN: multiple IDs found for 'inode': 956, 10314 - using 956
>> WARN: multiple IDs found for 'path': 989, 10344 - using 989
>> WARN: multiple IDs found for 'file': 765, 10375 - using 765
>> WARN: multiple IDs found for 'cgroup': 1030, 10409 - using 1030
>> WARN: multiple IDs found for 'seq_file': 1358, 10593 - using 1358
>> WARN: multiple IDs found for 'bpf_prog': 2054, 10984 - using 2054
>> WARN: multiple IDs found for 'bpf_map': 2134, 11012 - using 2134
>> [...]
>> [...]
>> make[2]: *** [scripts/Makefile.vmlinux:72: vmlinux.unstripped] Error 255
>> make[2]: *** Deleting file 'vmlinux.unstripped'
>> make[1]: *** [/home/src/linux/Makefile:1242: vmlinux] Error 2
>> make: *** [Makefile:248: __sub-make] Error 2
> 
> The kernel build is already broken without my patch series. Anyway, I
> have reported this. In the kernel documentation I found the following:
> 
> **Please do NOT report BPF issues to bugzilla.kernel.org since it
> is a guarantee that the reported issue will be overlooked.**
> 
> So I sent an email to the BPF mailing list reporting that the kernel
> build fails if both CONFIG_DEBUG_INFO_BTF and CONFIG_KCSAN are enabled
> for Linus' master branch (commit e7c375b18160 ("Merge tag
> 'vfs-6.18-rc7.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/
> vfs/vfs")). See also
> https://lore.kernel.org/bpf/2412725b-916c-47bd-91c3-c2d57e3e6c7b@acm.org/.
> 
Okay sounds good. Though I couldn't recreate this without __data_racy
on my platform. Anyways, I will review your patchset.

Thanks,
--Nilay