dm: fix to_sector() for 32bit
mainline inclusion from mainline-5.1-rc1 commit 0bdb50c531f7377a9da80d3ce2d61f389c84cb30 category: bugfix bugzilla: 12155 CVE: NA ------------------------------------------------- A dm-raid array with devices larger than 4GB won't assemble on a 32 bit host since _check_data_dev_sectors() was added in 4.16. This is because to_sector() treats its argument as an "unsigned long" which is 32bits (4GB) on a 32bit host. Using "unsigned long long" is more correct. Kernels as early as 4.2 can have other problems due to to_sector() being used on the size of a device. Fixes: 0cf45031 ("dm raid: add support for the MD RAID0 personality") cc: stable@vger.kernel.org (v4.2+) Reported-and-tested-by: NGuillaume Perréal <gperreal@free.fr> Signed-off-by: NNeilBrown <neil@brown.name> Signed-off-by: NMike Snitzer <snitzer@redhat.com> (cherry picked from commit 0bdb50c531f7377a9da80d3ce2d61f389c84cb30) Signed-off-by: NZhen Lei <thunder.leizhen@huawei.com> Reviewed-by: NYang Yingliang <yangyingliang@huawei.com> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Showing
想要评论请 注册 或 登录