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authorLinus Torvalds <torvalds@linux-foundation.org>2016-09-10 09:58:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-09-10 09:58:52 -0700
commit98ac9a608dc79ba8a20cee77fe959a6dfccdaa63 (patch)
tree79f9f8a750ba6335f95abe0d3b5cec8319d86dd2 /fs
parentb8db3714d7479881e23de20735f60f1733723241 (diff)
parent1e8b8d9619f9476e94f32eb20cab000d50d236aa (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams: "nvdimm fixes for v4.8, two of them are tagged for -stable: - Fix devm_memremap_pages() to use track_pfn_insert(). Otherwise, DAX pmd mappings end up with an uncached pgprot, and unusable performance for the device-dax interface. The device-dax interface appeared in 4.7 so this is tagged for -stable. - Fix a couple VM_BUG_ON() checks in the show_smaps() path to understand DAX pmd entries. This fix is tagged for -stable. - Fix a mis-merge of the nfit machine-check handler to flip the polarity of an if() to match the final version of the patch that Vishal sent for 4.8-rc1. Without this the nfit machine check handler never detects / inserts new 'badblocks' entries which applications use to identify lost portions of files. - For test purposes, fix the nvdimm_clear_poison() path to operate on legacy / simulated nvdimm memory ranges. Without this fix a test can set badblocks, but never clear them on these ranges. - Fix the range checking done by dax_dev_pmd_fault(). This is not tagged for -stable since this problem is mitigated by specifying aligned resources at device-dax setup time. These patches have appeared in a next release over the past week. The recent rebase you can see in the timestamps was to drop an invalid fix as identified by the updated device-dax unit tests [1]. The -mm touches have an ack from Andrew" [1]: "[ndctl PATCH 0/3] device-dax test for recent kernel bugs" https://lists.01.org/pipermail/linux-nvdimm/2016-September/006855.html * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm: allow legacy (e820) pmem region to clear bad blocks nfit, mce: Fix SPA matching logic in MCE handler mm: fix cache mode of dax pmd mappings mm: fix show_smap() for zone_device-pmd ranges dax: fix mapping size check
Diffstat (limited to 'fs')
-rw-r--r--fs/proc/task_mmu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 187d84ef9de9..f6fa99eca515 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -581,6 +581,8 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
mss->anonymous_thp += HPAGE_PMD_SIZE;
else if (PageSwapBacked(page))
mss->shmem_thp += HPAGE_PMD_SIZE;
+ else if (is_zone_device_page(page))
+ /* pass */;
else
VM_BUG_ON_PAGE(1, page);
smaps_account(mss, page, true, pmd_young(*pmd), pmd_dirty(*pmd));