[PATCH 0/3] ARS rescanning triggered by latent errors or userspace

This series adds on-demand ARS scanning on both, discovery of latent media errors, and a sysfs trigger from userspace. The rescanning part is easy to test using the nfit_test framework - create a namespace (this will by default have bad sectors in the middle), clear the bad sectors by writing to them, trigger the rescan through sysfs, and the bad sectors will reappear in /sys/block/<pmemX>/badblocks. For the mce handling, I've tested the notifier chain callback being called with a mock struct mce (called via another sysfs trigger - this isn't included in the patch obviously), which has the address field set to a known address in a SPA range, and the status field with the MCACOD flag set. What I haven't easily been able to test is the same callback path with a 'real world' mce, being called as part of the x86_mce_decoder_chain notifier. I'd therefore appreciate a closer look at the initial filtering done in nfit_handle_mce (patch 3/3) from Tony or anyone more familiar with mce handling. The series is based on v4.7-rc7, and a tree is available at https://git.kernel.org/cgit/linux/kernel/git/vishal/nvdimm.git/log/?h=ars... Vishal Verma (3): pmem: clarify a debug print in pmem_clear_poison nfit, libnvdimm: allow an ARS rescan to be triggered on demand nfit: do an ARS rescan on hitting a latent media error drivers/acpi/nfit.c | 138 ++++++++++++++++++++++++++++++++++++++++++++-- drivers/acpi/nfit.h | 2 + drivers/nvdimm/core.c | 17 ++++++ drivers/nvdimm/pmem.c | 2 +- include/linux/libnvdimm.h | 1 + 5 files changed, 155 insertions(+), 5 deletions(-) -- 2.7.4