Re: [PATCH] block: Fix a deadlock related to modifying the readahead attribute

On 6/26/25 11:16 PM, Nilay Shroff wrote:

Thanks! this makes sense now. But then we do have few other limits (e.g. iostats_passthrough, iostats, write_cache etc.) which are accessed during IO hotpath. So if we were to update those limits then we acquire ->limits_lock and also freezes the queue. So I wonder how could those be addressed?

Is there any Linux distro that sets these sysfs attributes from a udev rule? If not, I don't think that we have to worry about these sysfs attributes.

Thanks,

Bart.