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authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-29 00:55:46 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-29 00:55:46 (GMT)
commitf346b0becb1bc62e45495f9cdbae3eef35d0b635 (patch)
treeae79f3dfb8e031da51d38f0f095f89d7d23f3643 /drivers/nvdimm
parent00d59fde8532b2d42e80909d2e58678755e04da9 (diff)
parent0f4991e8fd48987ae476a92cdee6bfec4aff31b8 (diff)
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: - large KASAN update to use arm's "software tag-based mode" - a few misc things - sh updates - ocfs2 updates - just about all of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (167 commits) kernel/fork.c: mark 'stack_vm_area' with __maybe_unused memcg, oom: notify on oom killer invocation from the charge path mm, swap: fix swapoff with KSM pages include/linux/gfp.h: fix typo mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization memory_hotplug: add missing newlines to debugging output mm: remove __hugepage_set_anon_rmap() include/linux/vmstat.h: remove unused page state adjustment macro mm/page_alloc.c: allow error injection mm: migrate: drop unused argument of migrate_page_move_mapping() blkdev: avoid migration stalls for blkdev pages mm: migrate: provide buffer_migrate_page_norefs() mm: migrate: move migrate_page_lock_buffers() mm: migrate: lock buffers before migrate_page_move_mapping() mm: migration: factor out code to compute expected number of page references mm, page_alloc: enable pcpu_drain with zone capability kmemleak: add config to select auto scan mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init ...
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/pmem.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index f701929..bc2f700 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -309,8 +309,11 @@ static void pmem_release_queue(void *q)
blk_cleanup_queue(q);
}
-static void pmem_freeze_queue(void *q)
+static void pmem_freeze_queue(struct percpu_ref *ref)
{
+ struct request_queue *q;
+
+ q = container_of(ref, typeof(*q), q_usage_counter);
blk_freeze_queue_start(q);
}
@@ -402,6 +405,7 @@ static int pmem_attach_disk(struct device *dev,
pmem->pfn_flags = PFN_DEV;
pmem->pgmap.ref = &q->q_usage_counter;
+ pmem->pgmap.kill = pmem_freeze_queue;
if (is_nd_pfn(dev)) {
if (setup_pagemap_fsdax(dev, &pmem->pgmap))
return -ENOMEM;
@@ -427,13 +431,6 @@ static int pmem_attach_disk(struct device *dev,
memcpy(&bb_res, &nsio->res, sizeof(bb_res));
}
- /*
- * At release time the queue must be frozen before
- * devm_memremap_pages is unwound
- */
- if (devm_add_action_or_reset(dev, pmem_freeze_queue, q))
- return -ENOMEM;
-
if (IS_ERR(addr))
return PTR_ERR(addr);
pmem->virt_addr = addr;

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