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From: ira.weiny@intel.com
To: Andrew Morton <akpm@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Andy Lutomirski <luto@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>
Cc: Ira Weiny <ira.weiny@intel.com>,
	x86@kernel.org, Dave Hansen <dave.hansen@linux.intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
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Subject: [PATCH RFC PKS/PMEM 00/58] PMEM: Introduce stray write protection for PMEM
Date: Fri,  9 Oct 2020 12:49:35 -0700
Message-ID: <20201009195033.3208459-1-ira.weiny@intel.com> (raw)

From: Ira Weiny <ira.weiny@intel.com>

Should a stray write in the kernel occur persistent memory is affected more
than regular memory.  A write to the wrong area of memory could result in
latent data corruption which will will persist after a reboot.  PKS provides a
nice way to restrict access to persistent memory kernel mappings, while
providing fast access when needed.

Since the last RFC[1] this patch set has grown quite a bit.  It now depends on
the core patches submitted separately.

	https://lore.kernel.org/lkml/20201009194258.3207172-1-ira.weiny@intel.com/

And contained in the git tree here:

	https://github.com/weiny2/linux-kernel/tree/pks-rfc-v3

However, functionally there is only 1 major change from the last RFC.
Specifically, kmap() is most often used within a single thread in a 'map/do
something/unmap' pattern.  In fact this is the pattern used in ~90% of the
callers of kmap().  This pattern works very well for the pmem use case and the
testing which was done.  However, there were another ~20-30 kmap users which do
not follow this pattern.  Some of them seem to expect the mapping to be
'global' while others require a detailed audit to be sure.[2][3]

While we don't anticipate global mappings to pmem there is a danger in
changing the semantics of kmap().  Effectively, this would cause an unresolved
page fault with little to no information about why.

There were a number of options considered.

1) Attempt to change all the thread local kmap() calls to kmap_atomic()
2) Introduce a flags parameter to kmap() to indicate if the mapping should be
   global or not
3) Change ~20-30 call sites to 'kmap_global()' to indicate that they require a
   global mapping of the pages
4) Change ~209 call sites to 'kmap_thread()' to indicate that the mapping is to
   be used within that thread of execution only

Option 1 is simply not feasible kmap_atomic() is not the same semantic as
kmap() within a single tread.  Option 2 would require all of the call sites of
kmap() to change.  Option 3 seems like a good minimal change but there is a
danger that new code may miss the semantic change of kmap() and not get the
behavior intended for future users.  Therefore, option #4 was chosen.

To handle the global PKRS state in the most efficient manner possible.  We
lazily override the thread specific PKRS key value only when needed because we
anticipate PKS to not be needed will not be needed most of the time.  And even
when it is used 90% of the time it is a thread local call.


[1] https://lore.kernel.org/lkml/20200717072056.73134-1-ira.weiny@intel.com/

[2] The following list of callers continue calling kmap() (utilizing the global
PKRS).  It would be nice if more of them could be converted to kmap_thread()

	drivers/firewire/net.c:         ptr = kmap(dev->broadcast_rcv_buffer.pages[u]);
	drivers/gpu/drm/i915/gem/i915_gem_pages.c:              return kmap(sg_page(sgt->sgl));
	drivers/gpu/drm/ttm/ttm_bo_util.c:              map->virtual = kmap(map->page);
	drivers/infiniband/hw/qib/qib_user_sdma.c:      mpage = kmap(page);
	drivers/misc/vmw_vmci/vmci_host.c:      context->notify = kmap(context->notify_page) + (uva & (PAGE_SIZE - 1));
	drivers/misc/xilinx_sdfec.c:            addr = kmap(pages[i]);
	drivers/mmc/host/usdhi6rol0.c:  host->pg.mapped         = kmap(host->pg.page);
	drivers/mmc/host/usdhi6rol0.c:  host->pg.mapped = kmap(host->pg.page);
	drivers/mmc/host/usdhi6rol0.c:  host->pg.mapped = kmap(host->pg.page);
	drivers/nvme/target/tcp.c:              iov->iov_base = kmap(sg_page(sg)) + sg->offset + sg_offset;
	drivers/scsi/libiscsi_tcp.c:            segment->sg_mapped = kmap(sg_page(sg));
	drivers/target/iscsi/iscsi_target.c:            iov[i].iov_base = kmap(sg_page(sg)) + sg->offset + page_off;
	drivers/target/target_core_transport.c:         return kmap(sg_page(sg)) + sg->offset;
	fs/btrfs/check-integrity.c:             block_ctx->datav[i] = kmap(block_ctx->pagev[i]);
	fs/ceph/dir.c:          cache_ctl->dentries = kmap(cache_ctl->page);
	fs/ceph/inode.c:                ctl->dentries = kmap(ctl->page);
	fs/erofs/zpvec.h:               kmap_atomic(ctor->curr) : kmap(ctor->curr);
	lib/scatterlist.c:              miter->addr = kmap(miter->page) + miter->__offset;
	net/ceph/pagelist.c:    pl->mapped_tail = kmap(page);
	net/ceph/pagelist.c:            pl->mapped_tail = kmap(page);
	virt/kvm/kvm_main.c:                    hva = kmap(page);

[3] The following appear to follow the same pattern as ext2 which was converted
after some code audit.  So I _think_ they too could be converted to
k[un]map_thread().

	fs/freevxfs/vxfs_subr.c|75| kmap(pp);
	fs/jfs/jfs_metapage.c|102| kmap(page);
	fs/jfs/jfs_metapage.c|156| kmap(page);
	fs/minix/dir.c|72| kmap(page);
	fs/nilfs2/dir.c|195| kmap(page);
	fs/nilfs2/ifile.h|24| void *kaddr = kmap(ibh->b_page);
	fs/ntfs/aops.h|78| kmap(page);
	fs/ntfs/compress.c|574| kmap(page);
	fs/qnx6/dir.c|32| kmap(page);
	fs/qnx6/dir.c|58| kmap(*p = page);
	fs/qnx6/inode.c|190| kmap(page);
	fs/qnx6/inode.c|557| kmap(page);
	fs/reiserfs/inode.c|2397| kmap(bh_result->b_page);
	fs/reiserfs/xattr.c|444| kmap(page);
	fs/sysv/dir.c|60| kmap(page);
	fs/sysv/dir.c|262| kmap(page);
	fs/ufs/dir.c|194| kmap(page);
	fs/ufs/dir.c|562| kmap(page);


Ira Weiny (58):
  x86/pks: Add a global pkrs option
  x86/pks/test: Add testing for global option
  memremap: Add zone device access protection
  kmap: Add stray access protection for device pages
  kmap: Introduce k[un]map_thread
  kmap: Introduce k[un]map_thread debugging
  drivers/drbd: Utilize new kmap_thread()
  drivers/firmware_loader: Utilize new kmap_thread()
  drivers/gpu: Utilize new kmap_thread()
  drivers/rdma: Utilize new kmap_thread()
  drivers/net: Utilize new kmap_thread()
  fs/afs: Utilize new kmap_thread()
  fs/btrfs: Utilize new kmap_thread()
  fs/cifs: Utilize new kmap_thread()
  fs/ecryptfs: Utilize new kmap_thread()
  fs/gfs2: Utilize new kmap_thread()
  fs/nilfs2: Utilize new kmap_thread()
  fs/hfs: Utilize new kmap_thread()
  fs/hfsplus: Utilize new kmap_thread()
  fs/jffs2: Utilize new kmap_thread()
  fs/nfs: Utilize new kmap_thread()
  fs/f2fs: Utilize new kmap_thread()
  fs/fuse: Utilize new kmap_thread()
  fs/freevxfs: Utilize new kmap_thread()
  fs/reiserfs: Utilize new kmap_thread()
  fs/zonefs: Utilize new kmap_thread()
  fs/ubifs: Utilize new kmap_thread()
  fs/cachefiles: Utilize new kmap_thread()
  fs/ntfs: Utilize new kmap_thread()
  fs/romfs: Utilize new kmap_thread()
  fs/vboxsf: Utilize new kmap_thread()
  fs/hostfs: Utilize new kmap_thread()
  fs/cramfs: Utilize new kmap_thread()
  fs/erofs: Utilize new kmap_thread()
  fs: Utilize new kmap_thread()
  fs/ext2: Use ext2_put_page
  fs/ext2: Utilize new kmap_thread()
  fs/isofs: Utilize new kmap_thread()
  fs/jffs2: Utilize new kmap_thread()
  net: Utilize new kmap_thread()
  drivers/target: Utilize new kmap_thread()
  drivers/scsi: Utilize new kmap_thread()
  drivers/mmc: Utilize new kmap_thread()
  drivers/xen: Utilize new kmap_thread()
  drivers/firmware: Utilize new kmap_thread()
  drives/staging: Utilize new kmap_thread()
  drivers/mtd: Utilize new kmap_thread()
  drivers/md: Utilize new kmap_thread()
  drivers/misc: Utilize new kmap_thread()
  drivers/android: Utilize new kmap_thread()
  kernel: Utilize new kmap_thread()
  mm: Utilize new kmap_thread()
  lib: Utilize new kmap_thread()
  powerpc: Utilize new kmap_thread()
  samples: Utilize new kmap_thread()
  dax: Stray access protection for dax_direct_access()
  nvdimm/pmem: Stray access protection for pmem->virt_addr
  [dax|pmem]: Enable stray access protection

 Documentation/core-api/protection-keys.rst    |  11 +-
 arch/powerpc/mm/mem.c                         |   4 +-
 arch/x86/entry/common.c                       |  28 +++
 arch/x86/include/asm/pkeys.h                  |   6 +-
 arch/x86/include/asm/pkeys_common.h           |   8 +-
 arch/x86/kernel/process.c                     |  74 ++++++-
 arch/x86/mm/fault.c                           | 193 ++++++++++++++----
 arch/x86/mm/pkeys.c                           |  88 ++++++--
 drivers/android/binder_alloc.c                |   4 +-
 drivers/base/firmware_loader/fallback.c       |   4 +-
 drivers/base/firmware_loader/main.c           |   4 +-
 drivers/block/drbd/drbd_main.c                |   4 +-
 drivers/block/drbd/drbd_receiver.c            |  12 +-
 drivers/dax/device.c                          |   2 +
 drivers/dax/super.c                           |   2 +
 drivers/firmware/efi/capsule-loader.c         |   6 +-
 drivers/firmware/efi/capsule.c                |   4 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c       |  12 +-
 drivers/gpu/drm/gma500/gma_display.c          |   4 +-
 drivers/gpu/drm/gma500/mmu.c                  |  10 +-
 drivers/gpu/drm/i915/gem/i915_gem_shmem.c     |   4 +-
 .../drm/i915/gem/selftests/i915_gem_context.c |   4 +-
 .../drm/i915/gem/selftests/i915_gem_mman.c    |   8 +-
 drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c  |   4 +-
 drivers/gpu/drm/i915/gt/intel_gtt.c           |   4 +-
 drivers/gpu/drm/i915/gt/shmem_utils.c         |   4 +-
 drivers/gpu/drm/i915/i915_gem.c               |   8 +-
 drivers/gpu/drm/i915/i915_gpu_error.c         |   4 +-
 drivers/gpu/drm/i915/selftests/i915_perf.c    |   4 +-
 drivers/gpu/drm/radeon/radeon_ttm.c           |   4 +-
 drivers/infiniband/hw/hfi1/sdma.c             |   4 +-
 drivers/infiniband/hw/i40iw/i40iw_cm.c        |  10 +-
 drivers/infiniband/sw/siw/siw_qp_tx.c         |  14 +-
 drivers/md/bcache/request.c                   |   4 +-
 drivers/misc/vmw_vmci/vmci_queue_pair.c       |  12 +-
 drivers/mmc/host/mmc_spi.c                    |   4 +-
 drivers/mmc/host/sdricoh_cs.c                 |   4 +-
 drivers/mtd/mtd_blkdevs.c                     |  12 +-
 drivers/net/ethernet/intel/igb/igb_ethtool.c  |   4 +-
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  |   4 +-
 drivers/nvdimm/pmem.c                         |   6 +
 drivers/scsi/ipr.c                            |   8 +-
 drivers/scsi/pmcraid.c                        |   8 +-
 drivers/staging/rts5208/rtsx_transport.c      |   4 +-
 drivers/target/target_core_iblock.c           |   4 +-
 drivers/target/target_core_rd.c               |   4 +-
 drivers/target/target_core_transport.c        |   4 +-
 drivers/xen/gntalloc.c                        |   4 +-
 fs/afs/dir.c                                  |  16 +-
 fs/afs/dir_edit.c                             |  16 +-
 fs/afs/mntpt.c                                |   4 +-
 fs/afs/write.c                                |   4 +-
 fs/aio.c                                      |   4 +-
 fs/binfmt_elf.c                               |   4 +-
 fs/binfmt_elf_fdpic.c                         |   4 +-
 fs/btrfs/check-integrity.c                    |   4 +-
 fs/btrfs/compression.c                        |   4 +-
 fs/btrfs/inode.c                              |  16 +-
 fs/btrfs/lzo.c                                |  24 +--
 fs/btrfs/raid56.c                             |  34 +--
 fs/btrfs/reflink.c                            |   8 +-
 fs/btrfs/send.c                               |   4 +-
 fs/btrfs/zlib.c                               |  32 +--
 fs/btrfs/zstd.c                               |  20 +-
 fs/cachefiles/rdwr.c                          |   4 +-
 fs/cifs/cifsencrypt.c                         |   6 +-
 fs/cifs/file.c                                |  16 +-
 fs/cifs/smb2ops.c                             |   8 +-
 fs/cramfs/inode.c                             |  10 +-
 fs/ecryptfs/crypto.c                          |   8 +-
 fs/ecryptfs/read_write.c                      |   8 +-
 fs/erofs/super.c                              |   4 +-
 fs/erofs/xattr.c                              |   4 +-
 fs/exec.c                                     |  10 +-
 fs/ext2/dir.c                                 |   8 +-
 fs/ext2/ext2.h                                |   8 +
 fs/ext2/namei.c                               |  15 +-
 fs/f2fs/f2fs.h                                |   8 +-
 fs/freevxfs/vxfs_immed.c                      |   4 +-
 fs/fuse/readdir.c                             |   4 +-
 fs/gfs2/bmap.c                                |   4 +-
 fs/gfs2/ops_fstype.c                          |   4 +-
 fs/hfs/bnode.c                                |  14 +-
 fs/hfs/btree.c                                |  20 +-
 fs/hfsplus/bitmap.c                           |  20 +-
 fs/hfsplus/bnode.c                            | 102 ++++-----
 fs/hfsplus/btree.c                            |  18 +-
 fs/hostfs/hostfs_kern.c                       |  12 +-
 fs/io_uring.c                                 |   4 +-
 fs/isofs/compress.c                           |   4 +-
 fs/jffs2/file.c                               |   8 +-
 fs/jffs2/gc.c                                 |   4 +-
 fs/nfs/dir.c                                  |  20 +-
 fs/nilfs2/alloc.c                             |  34 +--
 fs/nilfs2/cpfile.c                            |   4 +-
 fs/ntfs/aops.c                                |   4 +-
 fs/reiserfs/journal.c                         |   4 +-
 fs/romfs/super.c                              |   4 +-
 fs/splice.c                                   |   4 +-
 fs/ubifs/file.c                               |  16 +-
 fs/vboxsf/file.c                              |  12 +-
 fs/zonefs/super.c                             |   4 +-
 include/linux/entry-common.h                  |   3 +
 include/linux/highmem.h                       |  63 +++++-
 include/linux/memremap.h                      |   1 +
 include/linux/mm.h                            |  43 ++++
 include/linux/pkeys.h                         |   6 +-
 include/linux/sched.h                         |   8 +
 include/trace/events/kmap_thread.h            |  56 +++++
 init/init_task.c                              |   6 +
 kernel/fork.c                                 |  18 ++
 kernel/kexec_core.c                           |   8 +-
 lib/Kconfig.debug                             |   8 +
 lib/iov_iter.c                                |  12 +-
 lib/pks/pks_test.c                            | 138 +++++++++++--
 lib/test_bpf.c                                |   4 +-
 lib/test_hmm.c                                |   8 +-
 mm/Kconfig                                    |  13 ++
 mm/debug.c                                    |  23 +++
 mm/memory.c                                   |   8 +-
 mm/memremap.c                                 |  90 ++++++++
 mm/swapfile.c                                 |   4 +-
 mm/userfaultfd.c                              |   4 +-
 net/ceph/messenger.c                          |   4 +-
 net/core/datagram.c                           |   4 +-
 net/core/sock.c                               |   8 +-
 net/ipv4/ip_output.c                          |   4 +-
 net/sunrpc/cache.c                            |   4 +-
 net/sunrpc/xdr.c                              |   8 +-
 net/tls/tls_device.c                          |   4 +-
 samples/vfio-mdev/mbochs.c                    |   4 +-
 131 files changed, 1284 insertions(+), 565 deletions(-)
 create mode 100644 include/trace/events/kmap_thread.h

-- 
2.28.0.rc0.12.gb6a658bd00c9


             reply index

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-09 19:49 ira.weiny [this message]
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 01/58] x86/pks: Add a global pkrs option ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 02/58] x86/pks/test: Add testing for global option ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 03/58] memremap: Add zone device access protection ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 04/58] kmap: Add stray access protection for device pages ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 05/58] kmap: Introduce k[un]map_thread ira.weiny
2020-11-10  1:13   ` Thomas Gleixner
2020-11-10  4:59     ` Ira Weiny
2020-11-10  8:48       ` Thomas Gleixner
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 06/58] kmap: Introduce k[un]map_thread debugging ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 07/58] drivers/drbd: Utilize new kmap_thread() ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 08/58] drivers/firmware_loader: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 09/58] drivers/gpu: " ira.weiny
2020-10-09 22:03   ` Daniel Vetter
2020-10-10 23:01     ` Ira Weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 10/58] drivers/rdma: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 11/58] drivers/net: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 12/58] fs/afs: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 13/58] fs/btrfs: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 14/58] fs/cifs: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 15/58] fs/ecryptfs: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 16/58] fs/gfs2: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 17/58] fs/nilfs2: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 18/58] fs/hfs: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 19/58] fs/hfsplus: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 20/58] fs/jffs2: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 21/58] fs/nfs: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 22/58] fs/f2fs: " ira.weiny
2020-10-09 21:34   ` Eric Biggers
2020-10-10  0:39     ` Matthew Wilcox
2020-10-10  1:30       ` Eric Biggers
2020-10-12  6:56         ` Ira Weiny
2020-10-12 16:19           ` Eric Biggers
2020-10-12 16:28             ` Dave Hansen
2020-10-12 16:44               ` Matthew Wilcox
2020-10-12 19:53                 ` Ira Weiny
2020-10-12 20:02                   ` Matthew Wilcox
2020-10-12 23:31                     ` Ira Weiny
2020-10-10  2:43     ` James Bottomley
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 23/58] fs/fuse: " ira.weiny
2020-10-09 19:49 ` [PATCH RFC PKS/PMEM 24/58] fs/freevxfs: " ira.weiny
2020-10-13 11:25   ` Christoph Hellwig
2020-10-13 20:52     ` Ira Weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 25/58] fs/reiserfs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 26/58] fs/zonefs: " ira.weiny
2020-10-12  2:30   ` Damien Le Moal
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 27/58] fs/ubifs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 28/58] fs/cachefiles: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 29/58] fs/ntfs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 30/58] fs/romfs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 31/58] fs/vboxsf: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 32/58] fs/hostfs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 33/58] fs/cramfs: " ira.weiny
2020-10-13 18:36   ` Nicolas Pitre
2020-10-13 18:44   ` Dan Williams
2020-10-13 19:36     ` Matthew Wilcox
2020-10-13 19:41       ` Dan Williams
2020-10-13 20:01       ` Al Viro
2020-10-13 20:50         ` Ira Weiny
2020-10-13 20:45       ` Ira Weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 34/58] fs/erofs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 35/58] fs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 36/58] fs/ext2: Use ext2_put_page ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 37/58] fs/ext2: Utilize new kmap_thread() ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 38/58] fs/isofs: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 39/58] fs/jffs2: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 40/58] net: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 41/58] drivers/target: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 42/58] drivers/scsi: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 43/58] drivers/mmc: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 44/58] drivers/xen: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 45/58] drivers/firmware: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 46/58] drives/staging: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 47/58] drivers/mtd: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 48/58] drivers/md: " ira.weiny
2020-10-10  2:20   ` Coly Li
2020-10-12  5:28     ` Ira Weiny
2020-10-12  7:40       ` Coly Li
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 49/58] drivers/misc: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 50/58] drivers/android: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 51/58] kernel: " ira.weiny
2020-10-10  3:43   ` Eric W. Biederman
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 52/58] mm: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 53/58] lib: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 54/58] powerpc: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 55/58] samples: " ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 56/58] dax: Stray access protection for dax_direct_access() ira.weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 57/58] nvdimm/pmem: Stray access protection for pmem->virt_addr ira.weiny
2020-10-10  2:53   ` John Hubbard
2020-10-12  5:52     ` Ira Weiny
2020-10-09 19:50 ` [PATCH RFC PKS/PMEM 58/58] [dax|pmem]: Enable stray access protection ira.weiny
2020-10-10 11:36 ` [PATCH RFC PKS/PMEM 10/58] drivers/rdma: Utilize new kmap_thread() Bernard Metzler
2020-10-12  4:47   ` Ira Weiny

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