[PATCH v3 13/14] mm: Remove callers of pfn_t functionality
From: Alistair Popple <apopple@nvidia.com>
Date: 2025-06-19 08:59:30
Also in:
dri-devel, linux-arm-kernel, linux-cxl, linux-ext4, linux-fsdevel, linux-mm, linux-riscv, linux-xfs, lkml, loongarch, nvdimm
Subsystem:
cramfs filesystem, device direct access (dax), device-mapper (lvm), drm driver for qualcomm display hardware, drm drivers, drm drivers and misc gpu patches, drm drivers for exynos, drm drivers for gma500 (poulsbo, moorestown and derivative chipsets), drm drivers for ti omap, drm drivers for v3d, ext4 file system, filesystem direct access (dax), filesystems (vfs and infrastructure), fuse: filesystem in userspace, hardware tracing facilities, intel drm i915 driver (meteor lake, dg2 and older excluding poulsbo, moorestown and derivative), intel(r) trace hub, libnvdimm pmem: persistent memory driver, libnvdimm: non-volatile memory device subsystem, memory hot(un)plug, memory management, memory management - core, memory management - memory policy and migration, memory management - thp (transparent huge page), s390 architecture, the rest, vfio driver, virtio file system, x86 architecture (32-bit and 64-bit), x86 mm, xfs filesystem · Maintainers:
Nicolas Pitre, Dan Williams, Vishal Verma, Dave Jiang, Alasdair Kergon, Mike Snitzer, Mikulas Patocka, Benjamin Marzinski, Rob Clark, Dmitry Baryshkov, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Inki Dae, Seung-Woo Kim, Kyungmin Park, Patrik Jakobsson, Tomi Valkeinen, Melissa Wen, Maíra Canal, "Theodore Ts'o", Alexander Viro, Christian Brauner, Miklos Szeredi, Alexander Shishkin, Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin, Ira Weiny, David Hildenbrand, Oscar Salvador, Andrew Morton, Lorenzo Stoakes, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds, Alex Williamson, German Maglione, Vivek Goyal, Stefan Hajnoczi, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, Andy Lutomirski, Peter Zijlstra, Carlos Maiolino
All PFN_* pfn_t flags have been removed. Therefore there is no longer a need for the pfn_t type and all uses can be replaced with normal pfns. Signed-off-by: Alistair Popple <apopple@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Acked-by: David Hildenbrand <redacted> --- Changes since v1: - Rebased on David's cleanup[1] [1] https://lore.kernel.org/linux-mm/20250611120654.545963-1-david@redhat.com/ (local) --- arch/x86/mm/pat/memtype.c | 1 +- drivers/dax/device.c | 23 +++---- drivers/dax/hmem/hmem.c | 1 +- drivers/dax/kmem.c | 1 +- drivers/dax/pmem.c | 1 +- drivers/dax/super.c | 3 +- drivers/gpu/drm/exynos/exynos_drm_gem.c | 1 +- drivers/gpu/drm/gma500/fbdev.c | 3 +- drivers/gpu/drm/i915/gem/i915_gem_mman.c | 1 +- drivers/gpu/drm/msm/msm_gem.c | 1 +- drivers/gpu/drm/omapdrm/omap_gem.c | 6 +-- drivers/gpu/drm/v3d/v3d_bo.c | 1 +- drivers/hwtracing/intel_th/msu.c | 3 +- drivers/md/dm-linear.c | 2 +- drivers/md/dm-log-writes.c | 2 +- drivers/md/dm-stripe.c | 2 +- drivers/md/dm-target.c | 2 +- drivers/md/dm-writecache.c | 11 +-- drivers/md/dm.c | 2 +- drivers/nvdimm/pmem.c | 8 +-- drivers/nvdimm/pmem.h | 4 +- drivers/s390/block/dcssblk.c | 9 +-- drivers/vfio/pci/vfio_pci_core.c | 5 +- fs/cramfs/inode.c | 5 +- fs/dax.c | 50 +++++++-------- fs/ext4/file.c | 2 +- fs/fuse/dax.c | 3 +- fs/fuse/virtio_fs.c | 5 +- fs/xfs/xfs_file.c | 2 +- include/linux/dax.h | 9 +-- include/linux/device-mapper.h | 2 +- include/linux/huge_mm.h | 6 +- include/linux/mm.h | 4 +- include/linux/pfn.h | 9 +--- include/linux/pfn_t.h | 85 +------------------------- mm/debug_vm_pgtable.c | 1 +- mm/huge_memory.c | 21 +++--- mm/memory.c | 31 ++++----- mm/memremap.c | 1 +- mm/migrate.c | 1 +- tools/testing/nvdimm/pmem-dax.c | 6 +- tools/testing/nvdimm/test/iomap.c | 7 +-- tools/testing/nvdimm/test/nfit_test.h | 1 +- 43 files changed, 109 insertions(+), 235 deletions(-) delete mode 100644 include/linux/pfn_t.h
diff --git a/arch/x86/mm/pat/memtype.c b/arch/x86/mm/pat/memtype.c
index 2e79238..c092843 100644
--- a/arch/x86/mm/pat/memtype.c
+++ b/arch/x86/mm/pat/memtype.c@@ -36,7 +36,6 @@ #include <linux/debugfs.h> #include <linux/ioport.h> #include <linux/kernel.h> -#include <linux/pfn_t.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/mm.h>
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 328231c..2bb40a6 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c@@ -4,7 +4,6 @@ #include <linux/pagemap.h> #include <linux/module.h> #include <linux/device.h> -#include <linux/pfn_t.h> #include <linux/cdev.h> #include <linux/slab.h> #include <linux/dax.h>
@@ -73,7 +72,7 @@ __weak phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff, return -1; } -static void dax_set_mapping(struct vm_fault *vmf, pfn_t pfn, +static void dax_set_mapping(struct vm_fault *vmf, unsigned long pfn, unsigned long fault_size) { unsigned long i, nr_pages = fault_size / PAGE_SIZE;
@@ -89,7 +88,7 @@ static void dax_set_mapping(struct vm_fault *vmf, pfn_t pfn, ALIGN_DOWN(vmf->address, fault_size)); for (i = 0; i < nr_pages; i++) { - struct folio *folio = pfn_folio(pfn_t_to_pfn(pfn) + i); + struct folio *folio = pfn_folio(pfn + i); if (folio->mapping) continue;
@@ -104,7 +103,7 @@ static vm_fault_t __dev_dax_pte_fault(struct dev_dax *dev_dax, { struct device *dev = &dev_dax->dev; phys_addr_t phys; - pfn_t pfn; + unsigned long pfn; unsigned int fault_size = PAGE_SIZE; if (check_vma(dev_dax, vmf->vma, __func__))
@@ -125,11 +124,11 @@ static vm_fault_t __dev_dax_pte_fault(struct dev_dax *dev_dax, return VM_FAULT_SIGBUS; } - pfn = phys_to_pfn_t(phys, 0); + pfn = PHYS_PFN(phys); dax_set_mapping(vmf, pfn, fault_size); - return vmf_insert_page_mkwrite(vmf, pfn_t_to_page(pfn), + return vmf_insert_page_mkwrite(vmf, pfn_to_page(pfn), vmf->flags & FAULT_FLAG_WRITE); }
@@ -140,7 +139,7 @@ static vm_fault_t __dev_dax_pmd_fault(struct dev_dax *dev_dax, struct device *dev = &dev_dax->dev; phys_addr_t phys; pgoff_t pgoff; - pfn_t pfn; + unsigned long pfn; unsigned int fault_size = PMD_SIZE; if (check_vma(dev_dax, vmf->vma, __func__))
@@ -169,11 +168,11 @@ static vm_fault_t __dev_dax_pmd_fault(struct dev_dax *dev_dax, return VM_FAULT_SIGBUS; } - pfn = phys_to_pfn_t(phys, 0); + pfn = PHYS_PFN(phys); dax_set_mapping(vmf, pfn, fault_size); - return vmf_insert_folio_pmd(vmf, page_folio(pfn_t_to_page(pfn)), + return vmf_insert_folio_pmd(vmf, page_folio(pfn_to_page(pfn)), vmf->flags & FAULT_FLAG_WRITE); }
@@ -185,7 +184,7 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax, struct device *dev = &dev_dax->dev; phys_addr_t phys; pgoff_t pgoff; - pfn_t pfn; + unsigned long pfn; unsigned int fault_size = PUD_SIZE;
@@ -215,11 +214,11 @@ static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax, return VM_FAULT_SIGBUS; } - pfn = phys_to_pfn_t(phys, 0); + pfn = PHYS_PFN(phys); dax_set_mapping(vmf, pfn, fault_size); - return vmf_insert_folio_pud(vmf, page_folio(pfn_t_to_page(pfn)), + return vmf_insert_folio_pud(vmf, page_folio(pfn_to_page(pfn)), vmf->flags & FAULT_FLAG_WRITE); } #else
diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index 5e7c53f..c18451a 100644
--- a/drivers/dax/hmem/hmem.c
+++ b/drivers/dax/hmem/hmem.c@@ -2,7 +2,6 @@ #include <linux/platform_device.h> #include <linux/memregion.h> #include <linux/module.h> -#include <linux/pfn_t.h> #include <linux/dax.h> #include "../bus.h"
diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c
index 584c70a..c036e4d 100644
--- a/drivers/dax/kmem.c
+++ b/drivers/dax/kmem.c@@ -5,7 +5,6 @@ #include <linux/memory.h> #include <linux/module.h> #include <linux/device.h> -#include <linux/pfn_t.h> #include <linux/slab.h> #include <linux/dax.h> #include <linux/fs.h>
diff --git a/drivers/dax/pmem.c b/drivers/dax/pmem.c
index c8ebf4e..bee9306 100644
--- a/drivers/dax/pmem.c
+++ b/drivers/dax/pmem.c@@ -2,7 +2,6 @@ /* Copyright(c) 2016 - 2018 Intel Corporation. All rights reserved. */ #include <linux/memremap.h> #include <linux/module.h> -#include <linux/pfn_t.h> #include "../nvdimm/pfn.h" #include "../nvdimm/nd.h" #include "bus.h"
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index e16d1d4..54c480e 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c@@ -7,7 +7,6 @@ #include <linux/mount.h> #include <linux/pseudo_fs.h> #include <linux/magic.h> -#include <linux/pfn_t.h> #include <linux/cdev.h> #include <linux/slab.h> #include <linux/uio.h>
@@ -148,7 +147,7 @@ enum dax_device_flags { * pages accessible at the device relative @pgoff. */ long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, - enum dax_access_mode mode, void **kaddr, pfn_t *pfn) + enum dax_access_mode mode, void **kaddr, unsigned long *pfn) { long avail;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 4787fee..84b2172 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c@@ -7,7 +7,6 @@ #include <linux/dma-buf.h> -#include <linux/pfn_t.h> #include <linux/shmem_fs.h> #include <linux/module.h>
diff --git a/drivers/gpu/drm/gma500/fbdev.c b/drivers/gpu/drm/gma500/fbdev.c
index 109efdc..68b825f 100644
--- a/drivers/gpu/drm/gma500/fbdev.c
+++ b/drivers/gpu/drm/gma500/fbdev.c@@ -6,7 +6,6 @@ **************************************************************************/ #include <linux/fb.h> -#include <linux/pfn_t.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_drv.h>
@@ -33,7 +32,7 @@ static vm_fault_t psb_fbdev_vm_fault(struct vm_fault *vmf) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); for (i = 0; i < page_num; ++i) { - err = vmf_insert_mixed(vma, address, __pfn_to_pfn_t(pfn, 0)); + err = vmf_insert_mixed(vma, address, pfn); if (unlikely(err & VM_FAULT_ERROR)) break; address += PAGE_SIZE;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index f6d37df..75f5b0e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c@@ -5,7 +5,6 @@ #include <linux/anon_inodes.h> #include <linux/mman.h> -#include <linux/pfn_t.h> #include <linux/sizes.h> #include <drm/drm_cache.h>
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 2995e80..20bf31f 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c@@ -9,7 +9,6 @@ #include <linux/spinlock.h> #include <linux/shmem_fs.h> #include <linux/dma-buf.h> -#include <linux/pfn_t.h> #include <drm/drm_prime.h> #include <drm/drm_file.h>
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index 9df05b2..381552b 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c@@ -8,7 +8,6 @@ #include <linux/seq_file.h> #include <linux/shmem_fs.h> #include <linux/spinlock.h> -#include <linux/pfn_t.h> #include <linux/vmalloc.h> #include <drm/drm_prime.h>
@@ -371,7 +370,7 @@ static vm_fault_t omap_gem_fault_1d(struct drm_gem_object *obj, VERB("Inserting %p pfn %lx, pa %lx", (void *)vmf->address, pfn, pfn << PAGE_SHIFT); - return vmf_insert_mixed(vma, vmf->address, __pfn_to_pfn_t(pfn, 0)); + return vmf_insert_mixed(vma, vmf->address, pfn); } /* Special handling for the case of faulting in 2d tiled buffers */
@@ -466,8 +465,7 @@ static vm_fault_t omap_gem_fault_2d(struct drm_gem_object *obj, pfn, pfn << PAGE_SHIFT); for (i = n; i > 0; i--) { - ret = vmf_insert_mixed(vma, - vaddr, __pfn_to_pfn_t(pfn, 0)); + ret = vmf_insert_mixed(vma, vaddr, pfn); if (ret & VM_FAULT_ERROR) break; pfn += priv->usergart[fmt].stride_pfn;
diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
index bb78155..c41476d 100644
--- a/drivers/gpu/drm/v3d/v3d_bo.c
+++ b/drivers/gpu/drm/v3d/v3d_bo.c@@ -16,7 +16,6 @@ */ #include <linux/dma-buf.h> -#include <linux/pfn_t.h> #include <linux/vmalloc.h> #include "v3d_drv.h"
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 7163950..f3a13b3 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c@@ -19,7 +19,6 @@ #include <linux/io.h> #include <linux/workqueue.h> #include <linux/dma-mapping.h> -#include <linux/pfn_t.h> #ifdef CONFIG_X86 #include <asm/set_memory.h>
@@ -1618,7 +1617,7 @@ static vm_fault_t msc_mmap_fault(struct vm_fault *vmf) return VM_FAULT_SIGBUS; get_page(page); - return vmf_insert_mixed(vmf->vma, vmf->address, page_to_pfn_t(page)); + return vmf_insert_mixed(vmf->vma, vmf->address, page_to_pfn(page)); } static const struct vm_operations_struct msc_mmap_ops = {
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 15538ec..73bf290 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c@@ -170,7 +170,7 @@ static struct dax_device *linear_dax_pgoff(struct dm_target *ti, pgoff_t *pgoff) static long linear_dax_direct_access(struct dm_target *ti, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { struct dax_device *dax_dev = linear_dax_pgoff(ti, &pgoff);
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index d484e8e..679b07d 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c@@ -893,7 +893,7 @@ static struct dax_device *log_writes_dax_pgoff(struct dm_target *ti, static long log_writes_dax_direct_access(struct dm_target *ti, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { struct dax_device *dax_dev = log_writes_dax_pgoff(ti, &pgoff);
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index a7dc04b..366f461 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c@@ -316,7 +316,7 @@ static struct dax_device *stripe_dax_pgoff(struct dm_target *ti, pgoff_t *pgoff) static long stripe_dax_direct_access(struct dm_target *ti, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { struct dax_device *dax_dev = stripe_dax_pgoff(ti, &pgoff);
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 652627a..2af5a95 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c@@ -255,7 +255,7 @@ static void io_err_io_hints(struct dm_target *ti, struct queue_limits *limits) static long io_err_dax_direct_access(struct dm_target *ti, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { return -EIO; }
diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index a428e1c..d8de4a3 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c@@ -13,7 +13,6 @@ #include <linux/dm-io.h> #include <linux/dm-kcopyd.h> #include <linux/dax.h> -#include <linux/pfn_t.h> #include <linux/libnvdimm.h> #include <linux/delay.h> #include "dm-io-tracker.h"
@@ -256,7 +255,7 @@ static int persistent_memory_claim(struct dm_writecache *wc) int r; loff_t s; long p, da; - pfn_t pfn; + unsigned long pfn; int id; struct page **pages; sector_t offset;
@@ -290,7 +289,7 @@ static int persistent_memory_claim(struct dm_writecache *wc) r = da; goto err2; } - if (!pfn_t_has_page(pfn)) { + if (!pfn_valid(pfn)) { wc->memory_map = NULL; r = -EOPNOTSUPP; goto err2;
@@ -314,13 +313,13 @@ static int persistent_memory_claim(struct dm_writecache *wc) r = daa ? daa : -EINVAL; goto err3; } - if (!pfn_t_has_page(pfn)) { + if (!pfn_valid(pfn)) { r = -EOPNOTSUPP; goto err3; } while (daa-- && i < p) { - pages[i++] = pfn_t_to_page(pfn); - pfn.val++; + pages[i++] = pfn_to_page(pfn); + pfn++; if (!(i & 15)) cond_resched(); }
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 1726f0f..4b9415f 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c@@ -1218,7 +1218,7 @@ static struct dm_target *dm_dax_get_live_target(struct mapped_device *md, static long dm_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { struct mapped_device *md = dax_get_private(dax_dev); sector_t sector = pgoff * PAGE_SECTORS;
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index aa50006..05785ff 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c@@ -20,7 +20,6 @@ #include <linux/kstrtox.h> #include <linux/vmalloc.h> #include <linux/blk-mq.h> -#include <linux/pfn_t.h> #include <linux/slab.h> #include <linux/uio.h> #include <linux/dax.h>
@@ -242,7 +241,7 @@ static void pmem_submit_bio(struct bio *bio) /* see "strong" declaration in tools/testing/nvdimm/pmem-dax.c */ __weak long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { resource_size_t offset = PFN_PHYS(pgoff) + pmem->data_offset; sector_t sector = PFN_PHYS(pgoff) >> SECTOR_SHIFT;
@@ -254,7 +253,7 @@ __weak long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, if (kaddr) *kaddr = pmem->virt_addr + offset; if (pfn) - *pfn = phys_to_pfn_t(pmem->phys_addr + offset, pmem->pfn_flags); + *pfn = PHYS_PFN(pmem->phys_addr + offset); if (bb->count && badblocks_check(bb, sector, num, &first_bad, &num_bad)) {
@@ -303,7 +302,7 @@ static int pmem_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff, static long pmem_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, - void **kaddr, pfn_t *pfn) + void **kaddr, unsigned long *pfn) { struct pmem_device *pmem = dax_get_private(dax_dev);
@@ -513,7 +512,6 @@ static int pmem_attach_disk(struct device *dev, pmem->disk = disk; pmem->pgmap.owner = pmem; - pmem->pfn_flags = 0; if (is_nd_pfn(dev)) { pmem->pgmap.type = MEMORY_DEVICE_FS_DAX; pmem->pgmap.ops = &fsdax_pagemap_ops;
diff --git a/drivers/nvdimm/pmem.h b/drivers/nvdimm/pmem.h
index 392b0b3..a48509f 100644
--- a/drivers/nvdimm/pmem.h
+++ b/drivers/nvdimm/pmem.h@@ -5,7 +5,6 @@ #include <linux/badblocks.h> #include <linux/memremap.h> #include <linux/types.h> -#include <linux/pfn_t.h> #include <linux/fs.h> enum dax_access_mode;
@@ -16,7 +15,6 @@ struct pmem_device { phys_addr_t phys_addr; /* when non-zero this device is hosting a 'pfn' instance */ phys_addr_t data_offset; - u64 pfn_flags; void *virt_addr; /* immutable base size of the namespace */ size_t size;
@@ -31,7 +29,7 @@ struct pmem_device { long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn); + unsigned long *pfn); #ifdef CONFIG_MEMORY_FAILURE static inline bool test_and_clear_pmem_poison(struct page *page)
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 249ae40..94fa5ed 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c@@ -17,7 +17,6 @@ #include <linux/blkdev.h> #include <linux/completion.h> #include <linux/interrupt.h> -#include <linux/pfn_t.h> #include <linux/uio.h> #include <linux/dax.h> #include <linux/io.h>
@@ -33,7 +32,7 @@ static void dcssblk_release(struct gendisk *disk); static void dcssblk_submit_bio(struct bio *bio); static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn); + unsigned long *pfn); static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
@@ -914,7 +913,7 @@ dcssblk_submit_bio(struct bio *bio) static long __dcssblk_direct_access(struct dcssblk_dev_info *dev_info, pgoff_t pgoff, - long nr_pages, void **kaddr, pfn_t *pfn) + long nr_pages, void **kaddr, unsigned long *pfn) { resource_size_t offset = pgoff * PAGE_SIZE; unsigned long dev_sz;
@@ -923,7 +922,7 @@ __dcssblk_direct_access(struct dcssblk_dev_info *dev_info, pgoff_t pgoff, if (kaddr) *kaddr = __va(dev_info->start + offset); if (pfn) - *pfn = __pfn_to_pfn_t(PFN_DOWN(dev_info->start + offset), 0); + *pfn = PFN_DOWN(dev_info->start + offset); return (dev_sz - offset) / PAGE_SIZE; }
@@ -931,7 +930,7 @@ __dcssblk_direct_access(struct dcssblk_dev_info *dev_info, pgoff_t pgoff, static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { struct dcssblk_dev_info *dev_info = dax_get_private(dax_dev);
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index 3f2ad5f..31bdb91 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c@@ -20,7 +20,6 @@ #include <linux/mutex.h> #include <linux/notifier.h> #include <linux/pci.h> -#include <linux/pfn_t.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/types.h>
@@ -1669,12 +1668,12 @@ static vm_fault_t vfio_pci_mmap_huge_fault(struct vm_fault *vmf, break; #ifdef CONFIG_ARCH_SUPPORTS_PMD_PFNMAP case PMD_ORDER: - ret = vmf_insert_pfn_pmd(vmf, __pfn_to_pfn_t(pfn, 0), false); + ret = vmf_insert_pfn_pmd(vmf, pfn, false); break; #endif #ifdef CONFIG_ARCH_SUPPORTS_PUD_PFNMAP case PUD_ORDER: - ret = vmf_insert_pfn_pud(vmf, __pfn_to_pfn_t(pfn, 0), false); + ret = vmf_insert_pfn_pud(vmf, pfn, false); break; #endif default:
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 820a664..b002e9b 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c@@ -17,7 +17,6 @@ #include <linux/fs.h> #include <linux/file.h> #include <linux/pagemap.h> -#include <linux/pfn_t.h> #include <linux/ramfs.h> #include <linux/init.h> #include <linux/string.h>
@@ -412,8 +411,8 @@ static int cramfs_physmem_mmap(struct file *file, struct vm_area_struct *vma) for (i = 0; i < pages && !ret; i++) { vm_fault_t vmf; unsigned long off = i * PAGE_SIZE; - pfn_t pfn = phys_to_pfn_t(address + off, 0); - vmf = vmf_insert_mixed(vma, vma->vm_start + off, pfn); + vmf = vmf_insert_mixed(vma, vma->vm_start + off, + address + off); if (vmf & VM_FAULT_ERROR) ret = vm_fault_to_errno(vmf, 0); }
diff --git a/fs/dax.c b/fs/dax.c
index f4ffb69..4229513 100644
--- a/fs/dax.c
+++ b/fs/dax.c@@ -20,7 +20,6 @@ #include <linux/sched/signal.h> #include <linux/uio.h> #include <linux/vmstat.h> -#include <linux/pfn_t.h> #include <linux/sizes.h> #include <linux/mmu_notifier.h> #include <linux/iomap.h>
@@ -76,9 +75,9 @@ static struct folio *dax_to_folio(void *entry) return page_folio(pfn_to_page(dax_to_pfn(entry))); } -static void *dax_make_entry(pfn_t pfn, unsigned long flags) +static void *dax_make_entry(unsigned long pfn, unsigned long flags) { - return xa_mk_value(flags | (pfn_t_to_pfn(pfn) << DAX_SHIFT)); + return xa_mk_value(flags | (pfn << DAX_SHIFT)); } static bool dax_is_locked(void *entry)
@@ -713,7 +712,7 @@ static void *grab_mapping_entry(struct xa_state *xas, if (order > 0) flags |= DAX_PMD; - entry = dax_make_entry(pfn_to_pfn_t(0), flags); + entry = dax_make_entry(0, flags); dax_lock_entry(xas, entry); if (xas_error(xas)) goto out_unlock;
@@ -1041,7 +1040,7 @@ static bool dax_fault_is_synchronous(const struct iomap_iter *iter, * appropriate. */ static void *dax_insert_entry(struct xa_state *xas, struct vm_fault *vmf, - const struct iomap_iter *iter, void *entry, pfn_t pfn, + const struct iomap_iter *iter, void *entry, unsigned long pfn, unsigned long flags) { struct address_space *mapping = vmf->vma->vm_file->f_mapping;
@@ -1239,7 +1238,7 @@ int dax_writeback_mapping_range(struct address_space *mapping, EXPORT_SYMBOL_GPL(dax_writeback_mapping_range); static int dax_iomap_direct_access(const struct iomap *iomap, loff_t pos, - size_t size, void **kaddr, pfn_t *pfnp) + size_t size, void **kaddr, unsigned long *pfnp) { pgoff_t pgoff = dax_iomap_pgoff(iomap, pos); int id, rc = 0;
@@ -1257,7 +1256,7 @@ static int dax_iomap_direct_access(const struct iomap *iomap, loff_t pos, rc = -EINVAL; if (PFN_PHYS(length) < size) goto out; - if (pfn_t_to_pfn(*pfnp) & (PHYS_PFN(size)-1)) + if (*pfnp & (PHYS_PFN(size)-1)) goto out; rc = 0;
@@ -1361,12 +1360,12 @@ static vm_fault_t dax_load_hole(struct xa_state *xas, struct vm_fault *vmf, { struct inode *inode = iter->inode; unsigned long vaddr = vmf->address; - pfn_t pfn = pfn_to_pfn_t(my_zero_pfn(vaddr)); + unsigned long pfn = my_zero_pfn(vaddr); vm_fault_t ret; *entry = dax_insert_entry(xas, vmf, iter, *entry, pfn, DAX_ZERO_PAGE); - ret = vmf_insert_page_mkwrite(vmf, pfn_t_to_page(pfn), false); + ret = vmf_insert_page_mkwrite(vmf, pfn_to_page(pfn), false); trace_dax_load_hole(inode, vmf, ret); return ret; }
@@ -1383,14 +1382,14 @@ static vm_fault_t dax_pmd_load_hole(struct xa_state *xas, struct vm_fault *vmf, struct folio *zero_folio; spinlock_t *ptl; pmd_t pmd_entry; - pfn_t pfn; + unsigned long pfn; zero_folio = mm_get_huge_zero_folio(vmf->vma->vm_mm); if (unlikely(!zero_folio)) goto fallback; - pfn = page_to_pfn_t(&zero_folio->page); + pfn = page_to_pfn(&zero_folio->page); *entry = dax_insert_entry(xas, vmf, iter, *entry, pfn, DAX_PMD | DAX_ZERO_PAGE);
@@ -1779,7 +1778,8 @@ static vm_fault_t dax_fault_return(int error) * insertion for now and return the pfn so that caller can insert it after the * fsync is done. */ -static vm_fault_t dax_fault_synchronous_pfnp(pfn_t *pfnp, pfn_t pfn) +static vm_fault_t dax_fault_synchronous_pfnp(unsigned long *pfnp, + unsigned long pfn) { if (WARN_ON_ONCE(!pfnp)) return VM_FAULT_SIGBUS;
@@ -1827,7 +1827,7 @@ static vm_fault_t dax_fault_cow_page(struct vm_fault *vmf, * @pmd: distinguish whether it is a pmd fault */ static vm_fault_t dax_fault_iter(struct vm_fault *vmf, - const struct iomap_iter *iter, pfn_t *pfnp, + const struct iomap_iter *iter, unsigned long *pfnp, struct xa_state *xas, void **entry, bool pmd) { const struct iomap *iomap = &iter->iomap;
@@ -1838,7 +1838,7 @@ static vm_fault_t dax_fault_iter(struct vm_fault *vmf, unsigned long entry_flags = pmd ? DAX_PMD : 0; struct folio *folio; int ret, err = 0; - pfn_t pfn; + unsigned long pfn; void *kaddr; if (!pmd && vmf->cow_page)
@@ -1875,16 +1875,15 @@ static vm_fault_t dax_fault_iter(struct vm_fault *vmf, folio_ref_inc(folio); if (pmd) - ret = vmf_insert_folio_pmd(vmf, pfn_folio(pfn_t_to_pfn(pfn)), - write); + ret = vmf_insert_folio_pmd(vmf, pfn_folio(pfn), write); else - ret = vmf_insert_page_mkwrite(vmf, pfn_t_to_page(pfn), write); + ret = vmf_insert_page_mkwrite(vmf, pfn_to_page(pfn), write); folio_put(folio); return ret; } -static vm_fault_t dax_iomap_pte_fault(struct vm_fault *vmf, pfn_t *pfnp, +static vm_fault_t dax_iomap_pte_fault(struct vm_fault *vmf, unsigned long *pfnp, int *iomap_errp, const struct iomap_ops *ops) { struct address_space *mapping = vmf->vma->vm_file->f_mapping;
@@ -1996,7 +1995,7 @@ static bool dax_fault_check_fallback(struct vm_fault *vmf, struct xa_state *xas, return false; } -static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp, +static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, unsigned long *pfnp, const struct iomap_ops *ops) { struct address_space *mapping = vmf->vma->vm_file->f_mapping;
@@ -2077,7 +2076,7 @@ static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp, return ret; } #else -static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp, +static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, unsigned long *pfnp, const struct iomap_ops *ops) { return VM_FAULT_FALLBACK;
@@ -2098,7 +2097,8 @@ static vm_fault_t dax_iomap_pmd_fault(struct vm_fault *vmf, pfn_t *pfnp, * successfully. */ vm_fault_t dax_iomap_fault(struct vm_fault *vmf, unsigned int order, - pfn_t *pfnp, int *iomap_errp, const struct iomap_ops *ops) + unsigned long *pfnp, int *iomap_errp, + const struct iomap_ops *ops) { if (order == 0) return dax_iomap_pte_fault(vmf, pfnp, iomap_errp, ops);
@@ -2118,8 +2118,8 @@ EXPORT_SYMBOL_GPL(dax_iomap_fault); * This function inserts a writeable PTE or PMD entry into the page tables * for an mmaped DAX file. It also marks the page cache entry as dirty. */ -static vm_fault_t -dax_insert_pfn_mkwrite(struct vm_fault *vmf, pfn_t pfn, unsigned int order) +static vm_fault_t dax_insert_pfn_mkwrite(struct vm_fault *vmf, + unsigned long pfn, unsigned int order) { struct address_space *mapping = vmf->vma->vm_file->f_mapping; XA_STATE_ORDER(xas, &mapping->i_pages, vmf->pgoff, order);
@@ -2141,7 +2141,7 @@ dax_insert_pfn_mkwrite(struct vm_fault *vmf, pfn_t pfn, unsigned int order) xas_set_mark(&xas, PAGECACHE_TAG_DIRTY); dax_lock_entry(&xas, entry); xas_unlock_irq(&xas); - folio = pfn_folio(pfn_t_to_pfn(pfn)); + folio = pfn_folio(pfn); folio_ref_inc(folio); if (order == 0) ret = vmf_insert_page_mkwrite(vmf, &folio->page, true);
@@ -2168,7 +2168,7 @@ dax_insert_pfn_mkwrite(struct vm_fault *vmf, pfn_t pfn, unsigned int order) * table entry. */ vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, unsigned int order, - pfn_t pfn) + unsigned long pfn) { int err; loff_t start = ((loff_t)vmf->pgoff) << PAGE_SHIFT;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 21df813..e6e9629 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c@@ -747,7 +747,7 @@ static vm_fault_t ext4_dax_huge_fault(struct vm_fault *vmf, unsigned int order) bool write = (vmf->flags & FAULT_FLAG_WRITE) && (vmf->vma->vm_flags & VM_SHARED); struct address_space *mapping = vmf->vma->vm_file->f_mapping; - pfn_t pfn; + unsigned long pfn; if (write) { sb_start_pagefault(sb);
diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
index 0502bf3..ac6d4c1 100644
--- a/fs/fuse/dax.c
+++ b/fs/fuse/dax.c@@ -10,7 +10,6 @@ #include <linux/dax.h> #include <linux/uio.h> #include <linux/pagemap.h> -#include <linux/pfn_t.h> #include <linux/iomap.h> #include <linux/interval_tree.h>
@@ -757,7 +756,7 @@ static vm_fault_t __fuse_dax_fault(struct vm_fault *vmf, unsigned int order, vm_fault_t ret; struct inode *inode = file_inode(vmf->vma->vm_file); struct super_block *sb = inode->i_sb; - pfn_t pfn; + unsigned long pfn; int error = 0; struct fuse_conn *fc = get_fuse_conn(inode); struct fuse_conn_dax *fcd = fc->dax;
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 53c2626..aac914b 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c@@ -9,7 +9,6 @@ #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/group_cpus.h> -#include <linux/pfn_t.h> #include <linux/memremap.h> #include <linux/module.h> #include <linux/virtio.h>
@@ -1008,7 +1007,7 @@ static void virtio_fs_cleanup_vqs(struct virtio_device *vdev) */ static long virtio_fs_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, - void **kaddr, pfn_t *pfn) + void **kaddr, unsigned long *pfn) { struct virtio_fs *fs = dax_get_private(dax_dev); phys_addr_t offset = PFN_PHYS(pgoff);
@@ -1017,7 +1016,7 @@ static long virtio_fs_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, if (kaddr) *kaddr = fs->window_kaddr + offset; if (pfn) - *pfn = phys_to_pfn_t(fs->window_phys_addr + offset, 0); + *pfn = fs->window_phys_addr + offset; return nr_pages > max_nr_pages ? max_nr_pages : nr_pages; }
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 48254a7..0b2db25 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c@@ -1729,7 +1729,7 @@ xfs_dax_fault_locked( bool write_fault) { vm_fault_t ret; - pfn_t pfn; + unsigned long pfn; if (!IS_ENABLED(CONFIG_FS_DAX)) { ASSERT(0);
diff --git a/include/linux/dax.h b/include/linux/dax.h
index dcc9fcd..29eec75 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h@@ -26,7 +26,7 @@ struct dax_operations { * number of pages available for DAX at that pfn. */ long (*direct_access)(struct dax_device *, pgoff_t, long, - enum dax_access_mode, void **, pfn_t *); + enum dax_access_mode, void **, unsigned long *); /* zero_page_range: required operation. Zero page range */ int (*zero_page_range)(struct dax_device *, pgoff_t, size_t); /*
@@ -241,7 +241,7 @@ static inline void dax_break_layout_final(struct inode *inode) bool dax_alive(struct dax_device *dax_dev); void *dax_get_private(struct dax_device *dax_dev); long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages, - enum dax_access_mode mode, void **kaddr, pfn_t *pfn); + enum dax_access_mode mode, void **kaddr, unsigned long *pfn); size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i); size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
@@ -255,9 +255,10 @@ void dax_flush(struct dax_device *dax_dev, void *addr, size_t size); ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops); vm_fault_t dax_iomap_fault(struct vm_fault *vmf, unsigned int order, - pfn_t *pfnp, int *errp, const struct iomap_ops *ops); + unsigned long *pfnp, int *errp, + const struct iomap_ops *ops); vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, - unsigned int order, pfn_t pfn); + unsigned int order, unsigned long pfn); int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index); void dax_delete_mapping_range(struct address_space *mapping, loff_t start, loff_t end);
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index cb95951..84fdc3a 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h@@ -156,7 +156,7 @@ typedef int (*dm_busy_fn) (struct dm_target *ti); */ typedef long (*dm_dax_direct_access_fn) (struct dm_target *ti, pgoff_t pgoff, long nr_pages, enum dax_access_mode node, void **kaddr, - pfn_t *pfn); + unsigned long *pfn); typedef int (*dm_dax_zero_page_range_fn)(struct dm_target *ti, pgoff_t pgoff, size_t nr_pages);
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 21b3f0b..35e34e6 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h@@ -37,8 +37,10 @@ int change_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, pgprot_t newprot, unsigned long cp_flags); -vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write); -vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, pfn_t pfn, bool write); +vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, unsigned long pfn, + bool write); +vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, unsigned long pfn, + bool write); vm_fault_t vmf_insert_folio_pmd(struct vm_fault *vmf, struct folio *folio, bool write); vm_fault_t vmf_insert_folio_pud(struct vm_fault *vmf, struct folio *folio,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7c2f760..98a6069 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h@@ -3527,9 +3527,9 @@ vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, vm_fault_t vmf_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn, pgprot_t pgprot); vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr, - pfn_t pfn); + unsigned long pfn); vm_fault_t vmf_insert_mixed_mkwrite(struct vm_area_struct *vma, - unsigned long addr, pfn_t pfn); + unsigned long addr, unsigned long pfn); int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len); static inline vm_fault_t vmf_insert_page(struct vm_area_struct *vma,
diff --git a/include/linux/pfn.h b/include/linux/pfn.h
index 14bc053..b90ca0b 100644
--- a/include/linux/pfn.h
+++ b/include/linux/pfn.h@@ -4,15 +4,6 @@ #ifndef __ASSEMBLY__ #include <linux/types.h> - -/* - * pfn_t: encapsulates a page-frame number that is optionally backed - * by memmap (struct page). Whether a pfn_t has a 'struct page' - * backing is indicated by flags in the high bits of the value. - */ -typedef struct { - u64 val; -} pfn_t; #endif #define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h
deleted file mode 100644
index 2c00293..0000000
--- a/include/linux/pfn_t.h
+++ /dev/null@@ -1,85 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _LINUX_PFN_T_H_ -#define _LINUX_PFN_T_H_ -#include <linux/mm.h> - -/* - * PFN_FLAGS_MASK - mask of all the possible valid pfn_t flags - */ -#define PFN_FLAGS_MASK (((u64) (~PAGE_MASK)) << (BITS_PER_LONG_LONG - PAGE_SHIFT)) - -#define PFN_FLAGS_TRACE \ - { } - -static inline pfn_t __pfn_to_pfn_t(unsigned long pfn, u64 flags) -{ - pfn_t pfn_t = { .val = pfn | (flags & PFN_FLAGS_MASK), }; - - return pfn_t; -} - -/* a default pfn to pfn_t conversion assumes that @pfn is pfn_valid() */ -static inline pfn_t pfn_to_pfn_t(unsigned long pfn) -{ - return __pfn_to_pfn_t(pfn, 0); -} - -static inline pfn_t phys_to_pfn_t(phys_addr_t addr, u64 flags) -{ - return __pfn_to_pfn_t(addr >> PAGE_SHIFT, flags); -} - -static inline bool pfn_t_has_page(pfn_t pfn) -{ - return true; -} - -static inline unsigned long pfn_t_to_pfn(pfn_t pfn) -{ - return pfn.val & ~PFN_FLAGS_MASK; -} - -static inline struct page *pfn_t_to_page(pfn_t pfn) -{ - if (pfn_t_has_page(pfn)) - return pfn_to_page(pfn_t_to_pfn(pfn)); - return NULL; -} - -static inline phys_addr_t pfn_t_to_phys(pfn_t pfn) -{ - return PFN_PHYS(pfn_t_to_pfn(pfn)); -} - -static inline pfn_t page_to_pfn_t(struct page *page) -{ - return pfn_to_pfn_t(page_to_pfn(page)); -} - -static inline int pfn_t_valid(pfn_t pfn) -{ - return pfn_valid(pfn_t_to_pfn(pfn)); -} - -#ifdef CONFIG_MMU -static inline pte_t pfn_t_pte(pfn_t pfn, pgprot_t pgprot) -{ - return pfn_pte(pfn_t_to_pfn(pfn), pgprot); -} -#endif - -#ifdef CONFIG_TRANSPARENT_HUGEPAGE -static inline pmd_t pfn_t_pmd(pfn_t pfn, pgprot_t pgprot) -{ - return pfn_pmd(pfn_t_to_pfn(pfn), pgprot); -} - -#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD -static inline pud_t pfn_t_pud(pfn_t pfn, pgprot_t pgprot) -{ - return pfn_pud(pfn_t_to_pfn(pfn), pgprot); -} -#endif -#endif - -#endif /* _LINUX_PFN_T_H_ */
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index d84d0c4..bd8f931 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c@@ -20,7 +20,6 @@ #include <linux/mman.h> #include <linux/mm_types.h> #include <linux/module.h> -#include <linux/pfn_t.h> #include <linux/printk.h> #include <linux/pgtable.h> #include <linux/random.h>
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 642fd83..d9a76e7 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c@@ -22,7 +22,6 @@ #include <linux/mm_types.h> #include <linux/khugepaged.h> #include <linux/freezer.h> -#include <linux/pfn_t.h> #include <linux/mman.h> #include <linux/memremap.h> #include <linux/pagemap.h>
@@ -1375,7 +1374,7 @@ vm_fault_t do_huge_pmd_anonymous_page(struct vm_fault *vmf) struct folio_or_pfn { union { struct folio *folio; - pfn_t pfn; + unsigned long pfn; }; bool is_folio; };
@@ -1391,7 +1390,7 @@ static int insert_pmd(struct vm_area_struct *vma, unsigned long addr, if (!pmd_none(*pmd)) { const unsigned long pfn = fop.is_folio ? folio_pfn(fop.folio) : - pfn_t_to_pfn(fop.pfn); + fop.pfn; if (write) { if (pmd_pfn(*pmd) != pfn) {
@@ -1414,7 +1413,7 @@ static int insert_pmd(struct vm_area_struct *vma, unsigned long addr, folio_add_file_rmap_pmd(fop.folio, &fop.folio->page, vma); add_mm_counter(mm, mm_counter_file(fop.folio), HPAGE_PMD_NR); } else { - entry = pmd_mkhuge(pfn_t_pmd(fop.pfn, prot)); + entry = pmd_mkhuge(pfn_pmd(fop.pfn, prot)); entry = pmd_mkspecial(entry); } if (write) {
@@ -1442,7 +1441,8 @@ static int insert_pmd(struct vm_area_struct *vma, unsigned long addr, * * Return: vm_fault_t value. */ -vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write) +vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, unsigned long pfn, + bool write) { unsigned long addr = vmf->address & PMD_MASK; struct vm_area_struct *vma = vmf->vma;
@@ -1473,7 +1473,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write) return VM_FAULT_OOM; } - pfnmap_setup_cachemode_pfn(pfn_t_to_pfn(pfn), &pgprot); + pfnmap_setup_cachemode_pfn(pfn, &pgprot); ptl = pmd_lock(vma->vm_mm, vmf->pmd); error = insert_pmd(vma, addr, vmf->pmd, fop, pgprot, write,
@@ -1539,7 +1539,7 @@ static void insert_pud(struct vm_area_struct *vma, unsigned long addr, if (!pud_none(*pud)) { const unsigned long pfn = fop.is_folio ? folio_pfn(fop.folio) : - pfn_t_to_pfn(fop.pfn); + fop.pfn; if (write) { if (WARN_ON_ONCE(pud_pfn(*pud) != pfn))
@@ -1559,7 +1559,7 @@ static void insert_pud(struct vm_area_struct *vma, unsigned long addr, folio_add_file_rmap_pud(fop.folio, &fop.folio->page, vma); add_mm_counter(mm, mm_counter_file(fop.folio), HPAGE_PUD_NR); } else { - entry = pud_mkhuge(pfn_t_pud(fop.pfn, prot)); + entry = pud_mkhuge(pfn_pud(fop.pfn, prot)); entry = pud_mkspecial(entry); } if (write) {
@@ -1580,7 +1580,8 @@ static void insert_pud(struct vm_area_struct *vma, unsigned long addr, * * Return: vm_fault_t value. */ -vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, pfn_t pfn, bool write) +vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, unsigned long pfn, + bool write) { unsigned long addr = vmf->address & PUD_MASK; struct vm_area_struct *vma = vmf->vma;
@@ -1603,7 +1604,7 @@ vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, pfn_t pfn, bool write) if (addr < vma->vm_start || addr >= vma->vm_end) return VM_FAULT_SIGBUS; - pfnmap_setup_cachemode_pfn(pfn_t_to_pfn(pfn), &pgprot); + pfnmap_setup_cachemode_pfn(pfn, &pgprot); ptl = pud_lock(vma->vm_mm, vmf->pud); insert_pud(vma, addr, vmf->pud, fop, pgprot, write);
diff --git a/mm/memory.c b/mm/memory.c
index f1d81ad..0163d12 100644
--- a/mm/memory.c
+++ b/mm/memory.c@@ -57,7 +57,6 @@ #include <linux/export.h> #include <linux/delayacct.h> #include <linux/init.h> -#include <linux/pfn_t.h> #include <linux/writeback.h> #include <linux/memcontrol.h> #include <linux/mmu_notifier.h>
@@ -2435,7 +2434,7 @@ int vm_map_pages_zero(struct vm_area_struct *vma, struct page **pages, EXPORT_SYMBOL(vm_map_pages_zero); static vm_fault_t insert_pfn(struct vm_area_struct *vma, unsigned long addr, - pfn_t pfn, pgprot_t prot, bool mkwrite) + unsigned long pfn, pgprot_t prot, bool mkwrite) { struct mm_struct *mm = vma->vm_mm; pte_t *pte, entry;
@@ -2457,7 +2456,7 @@ static vm_fault_t insert_pfn(struct vm_area_struct *vma, unsigned long addr, * allocation and mapping invalidation so just skip the * update. */ - if (pte_pfn(entry) != pfn_t_to_pfn(pfn)) { + if (pte_pfn(entry) != pfn) { WARN_ON_ONCE(!is_zero_pfn(pte_pfn(entry))); goto out_unlock; }
@@ -2470,7 +2469,7 @@ static vm_fault_t insert_pfn(struct vm_area_struct *vma, unsigned long addr, } /* Ok, finally just insert the thing.. */ - entry = pte_mkspecial(pfn_t_pte(pfn, prot)); + entry = pte_mkspecial(pfn_pte(pfn, prot)); if (mkwrite) { entry = pte_mkyoung(entry);
@@ -2541,8 +2540,7 @@ vm_fault_t vmf_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr, pfnmap_setup_cachemode_pfn(pfn, &pgprot); - return insert_pfn(vma, addr, __pfn_to_pfn_t(pfn, 0), pgprot, - false); + return insert_pfn(vma, addr, pfn, pgprot, false); } EXPORT_SYMBOL(vmf_insert_pfn_prot);
@@ -2573,21 +2571,22 @@ vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, } EXPORT_SYMBOL(vmf_insert_pfn); -static bool vm_mixed_ok(struct vm_area_struct *vma, pfn_t pfn, bool mkwrite) +static bool vm_mixed_ok(struct vm_area_struct *vma, unsigned long pfn, + bool mkwrite) { - if (unlikely(is_zero_pfn(pfn_t_to_pfn(pfn))) && + if (unlikely(is_zero_pfn(pfn)) && (mkwrite || !vm_mixed_zeropage_allowed(vma))) return false; /* these checks mirror the abort conditions in vm_normal_page */ if (vma->vm_flags & VM_MIXEDMAP) return true; - if (is_zero_pfn(pfn_t_to_pfn(pfn))) + if (is_zero_pfn(pfn)) return true; return false; } static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma, - unsigned long addr, pfn_t pfn, bool mkwrite) + unsigned long addr, unsigned long pfn, bool mkwrite) { pgprot_t pgprot = vma->vm_page_prot; int err;
@@ -2598,9 +2597,9 @@ static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma, if (addr < vma->vm_start || addr >= vma->vm_end) return VM_FAULT_SIGBUS; - pfnmap_setup_cachemode_pfn(pfn_t_to_pfn(pfn), &pgprot); + pfnmap_setup_cachemode_pfn(pfn, &pgprot); - if (!pfn_modify_allowed(pfn_t_to_pfn(pfn), pgprot)) + if (!pfn_modify_allowed(pfn, pgprot)) return VM_FAULT_SIGBUS; /*
@@ -2610,7 +2609,7 @@ static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma, * than insert_pfn). If a zero_pfn were inserted into a VM_MIXEDMAP * without pte special, it would there be refcounted as a normal page. */ - if (!IS_ENABLED(CONFIG_ARCH_HAS_PTE_SPECIAL) && pfn_t_valid(pfn)) { + if (!IS_ENABLED(CONFIG_ARCH_HAS_PTE_SPECIAL) && pfn_valid(pfn)) { struct page *page; /*
@@ -2618,7 +2617,7 @@ static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma, * regardless of whether the caller specified flags that * result in pfn_t_has_page() == false. */ - page = pfn_to_page(pfn_t_to_pfn(pfn)); + page = pfn_to_page(pfn); err = insert_page(vma, addr, page, pgprot, mkwrite); } else { return insert_pfn(vma, addr, pfn, pgprot, mkwrite);
@@ -2653,7 +2652,7 @@ vm_fault_t vmf_insert_page_mkwrite(struct vm_fault *vmf, struct page *page, EXPORT_SYMBOL_GPL(vmf_insert_page_mkwrite); vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr, - pfn_t pfn) + unsigned long pfn) { return __vm_insert_mixed(vma, addr, pfn, false); }
@@ -2665,7 +2664,7 @@ EXPORT_SYMBOL(vmf_insert_mixed); * the same entry was actually inserted. */ vm_fault_t vmf_insert_mixed_mkwrite(struct vm_area_struct *vma, - unsigned long addr, pfn_t pfn) + unsigned long addr, unsigned long pfn) { return __vm_insert_mixed(vma, addr, pfn, true); }
diff --git a/mm/memremap.c b/mm/memremap.c
index c17e0a6..044a455 100644
--- a/mm/memremap.c
+++ b/mm/memremap.c@@ -5,7 +5,6 @@ #include <linux/kasan.h> #include <linux/memory_hotplug.h> #include <linux/memremap.h> -#include <linux/pfn_t.h> #include <linux/swap.h> #include <linux/mm.h> #include <linux/mmzone.h>
diff --git a/mm/migrate.c b/mm/migrate.c
index 8cf0f9c..ea8c74d 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c@@ -35,7 +35,6 @@ #include <linux/compat.h> #include <linux/hugetlb.h> #include <linux/gfp.h> -#include <linux/pfn_t.h> #include <linux/page_idle.h> #include <linux/page_owner.h> #include <linux/sched/mm.h>
diff --git a/tools/testing/nvdimm/pmem-dax.c b/tools/testing/nvdimm/pmem-dax.c
index c1ec099..05e763a 100644
--- a/tools/testing/nvdimm/pmem-dax.c
+++ b/tools/testing/nvdimm/pmem-dax.c@@ -10,7 +10,7 @@ long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, long nr_pages, enum dax_access_mode mode, void **kaddr, - pfn_t *pfn) + unsigned long *pfn) { resource_size_t offset = PFN_PHYS(pgoff) + pmem->data_offset;
@@ -29,7 +29,7 @@ long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, *kaddr = pmem->virt_addr + offset; page = vmalloc_to_page(pmem->virt_addr + offset); if (pfn) - *pfn = page_to_pfn_t(page); + *pfn = page_to_pfn(page); pr_debug_ratelimited("%s: pmem: %p pgoff: %#lx pfn: %#lx\n", __func__, pmem, pgoff, page_to_pfn(page));
@@ -39,7 +39,7 @@ long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, if (kaddr) *kaddr = pmem->virt_addr + offset; if (pfn) - *pfn = phys_to_pfn_t(pmem->phys_addr + offset, pmem->pfn_flags); + *pfn = PHYS_PFN(pmem->phys_addr + offset); /* * If badblocks are present, limit known good range to the
diff --git a/tools/testing/nvdimm/test/iomap.c b/tools/testing/nvdimm/test/iomap.c
index ddceb04..f7e7bfe 100644
--- a/tools/testing/nvdimm/test/iomap.c
+++ b/tools/testing/nvdimm/test/iomap.c@@ -8,7 +8,6 @@ #include <linux/ioport.h> #include <linux/module.h> #include <linux/types.h> -#include <linux/pfn_t.h> #include <linux/acpi.h> #include <linux/io.h> #include <linux/mm.h>
@@ -135,12 +134,6 @@ void *__wrap_devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap) } EXPORT_SYMBOL_GPL(__wrap_devm_memremap_pages); -pfn_t __wrap_phys_to_pfn_t(phys_addr_t addr, unsigned long flags) -{ - return phys_to_pfn_t(addr, flags); -} -EXPORT_SYMBOL(__wrap_phys_to_pfn_t); - void *__wrap_memremap(resource_size_t offset, size_t size, unsigned long flags) {
diff --git a/tools/testing/nvdimm/test/nfit_test.h b/tools/testing/nvdimm/test/nfit_test.h
index b00583d..b9047fb 100644
--- a/tools/testing/nvdimm/test/nfit_test.h
+++ b/tools/testing/nvdimm/test/nfit_test.h@@ -212,7 +212,6 @@ void __iomem *__wrap_devm_ioremap(struct device *dev, void *__wrap_devm_memremap(struct device *dev, resource_size_t offset, size_t size, unsigned long flags); void *__wrap_devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap); -pfn_t __wrap_phys_to_pfn_t(phys_addr_t addr, unsigned long flags); void *__wrap_memremap(resource_size_t offset, size_t size, unsigned long flags); void __wrap_devm_memunmap(struct device *dev, void *addr);
--
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