On Fri, Aug 16, 2019 at 10:54:17AM +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(). > > So use cpumap_print_to_pagebuf() to print the info and fix the potential > buffer overflow issue. > > 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 | 15 +-------------- > 1 file changed, 1 insertion(+), 14 deletions(-)
No list of what changed from v1 under here? Anyway, no, just delete the attribute please. thanks, greg k-h
