On Fri, Aug 16, 2019 at 03:48:49PM +0800, Ming Lei wrote: > It is reported that sysfs buffer overflow can be triggered in case > of too many CPU cores(>841 on 4K PAGE_SIZE) when showing CPUs in > blk_mq_hw_sysfs_cpus_show(). > > This info isn't useful, given users may retrieve the CPU list > from sw queue entries under same kobject dir, so far not see > any active users. > > So remove the entry as suggested by Greg. > > Cc: [email protected] > Cc: Mark Ray <[email protected]> > Cc: Greg KH <[email protected]> > Fixes: 676141e48af7("blk-mq: don't dump CPU -> hw queue map on driver load") > Signed-off-by: Ming Lei <[email protected]> > --- > block/blk-mq-sysfs.c | 23 ----------------------- > 1 file changed, 23 deletions(-)
Reviewed-by: Greg Kroah-Hartman <[email protected]>
