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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-10 12:07:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-10 12:07:22 -0800
commit264015f8a83fefc62c5125d761fbbadf924e520c (patch)
tree6a0602761abb3d866471861a7128a5177a855fd0 /drivers/nvdimm
parentd55fc37856244c929965c190c8e9dcb49e2c07aa (diff)
parentab27a8d04b32b6ee8c30c14c4afd1058e8addc82 (diff)
downloadop-kernel-dev-264015f8a83fefc62c5125d761fbbadf924e520c.zip
op-kernel-dev-264015f8a83fefc62c5125d761fbbadf924e520c.tar.gz
Merge tag 'libnvdimm-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams: "Outside of the new ACPI-NFIT hot-add support this pull request is more notable for what it does not contain, than what it does. There were a handful of development topics this cycle, dax get_user_pages, dax fsync, and raw block dax, that need more more iteration and will wait for 4.5. The patches to make devm and the pmem driver NUMA aware have been in -next for several weeks. The hot-add support has not, but is contained to the NFIT driver and is passing unit tests. The coredump support is straightforward and was looked over by Jeff. All of it has received a 0day build success notification across 107 configs. Summary: - Add support for the ACPI 6.0 NFIT hot add mechanism to process updates of the NFIT at runtime. - Teach the coredump implementation how to filter out DAX mappings. - Introduce NUMA hints for allocations made by the pmem driver, and as a side effect all devm allocations now hint their NUMA node by default" * tag 'libnvdimm-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: coredump: add DAX filtering for FDPIC ELF coredumps coredump: add DAX filtering for ELF coredumps acpi: nfit: Add support for hot-add nfit: in acpi_nfit_init, break on a 0-length table pmem, memremap: convert to numa aware allocations devm_memremap_pages: use numa_mem_id devm: make allocations numa aware by default devm_memremap: convert to return ERR_PTR devm_memunmap: use devres_release() pmem: kill memremap_pmem() x86, mm: quiet arch_add_memory()
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/pmem.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 0ba6a97..349f03e 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -150,18 +150,15 @@ static struct pmem_device *pmem_alloc(struct device *dev,
return ERR_PTR(-EBUSY);
}
- if (pmem_should_map_pages(dev)) {
- void *addr = devm_memremap_pages(dev, res);
+ if (pmem_should_map_pages(dev))
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, res);
+ else
+ pmem->virt_addr = (void __pmem *) devm_memremap(dev,
+ pmem->phys_addr, pmem->size,
+ ARCH_MEMREMAP_PMEM);
- if (IS_ERR(addr))
- return addr;
- pmem->virt_addr = (void __pmem *) addr;
- } else {
- pmem->virt_addr = memremap_pmem(dev, pmem->phys_addr,
- pmem->size);
- if (!pmem->virt_addr)
- return ERR_PTR(-ENXIO);
- }
+ if (IS_ERR(pmem->virt_addr))
+ return (void __force *) pmem->virt_addr;
return pmem;
}
@@ -179,9 +176,10 @@ static void pmem_detach_disk(struct pmem_device *pmem)
static int pmem_attach_disk(struct device *dev,
struct nd_namespace_common *ndns, struct pmem_device *pmem)
{
+ int nid = dev_to_node(dev);
struct gendisk *disk;
- pmem->pmem_queue = blk_alloc_queue(GFP_KERNEL);
+ pmem->pmem_queue = blk_alloc_queue_node(GFP_KERNEL, nid);
if (!pmem->pmem_queue)
return -ENOMEM;
@@ -191,7 +189,7 @@ static int pmem_attach_disk(struct device *dev,
blk_queue_bounce_limit(pmem->pmem_queue, BLK_BOUNCE_ANY);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, pmem->pmem_queue);
- disk = alloc_disk(0);
+ disk = alloc_disk_node(0, nid);
if (!disk) {
blk_cleanup_queue(pmem->pmem_queue);
return -ENOMEM;
@@ -363,8 +361,8 @@ static int nvdimm_namespace_attach_pfn(struct nd_namespace_common *ndns)
/* establish pfn range for lookup, and switch to direct map */
pmem = dev_get_drvdata(dev);
- memunmap_pmem(dev, pmem->virt_addr);
- pmem->virt_addr = (void __pmem *)devm_memremap_pages(dev, &nsio->res);
+ devm_memunmap(dev, (void __force *) pmem->virt_addr);
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, &nsio->res);
if (IS_ERR(pmem->virt_addr)) {
rc = PTR_ERR(pmem->virt_addr);
goto err;
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