linux-stable.git/fs/Kconfig, branch v6.4

smb: move client and server files to common directory fs/smb

2023-05-24T21:29:21+00:00

Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:

   fs/cifs --> fs/smb/client
   fs/ksmbd --> fs/smb/server
   fs/smbfs_common --> fs/smb/common

Suggested-by: Linus Torvalds 
Acked-by: Namjae Jeon 
Signed-off-by: Steve French

mm/hugetlb_vmemmap: rename ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP

2023-04-18T23:30:09+00:00

Now we use ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP config option to
indicate devdax and hugetlb vmemmap optimization support.  Hence rename
that to a generic ARCH_WANT_OPTIMIZE_VMEMMAP

Link: https://lkml.kernel.org/r/20230412050025.84346-2-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V 
Reviewed-by: Muchun Song 
Cc: Joao Martins 
Cc: Dan Williams 
Cc: Mike Kravetz 
Cc: Tarun Sahu 
Signed-off-by: Andrew Morton

fs: build the legacy direct I/O code conditionally

2023-01-26T17:30:56+00:00

Add a new LEGACY_DIRECT_IO config symbol that is only selected by the
file systems that still use the legacy blockdev_direct_IO code, so that
kernels without support for those file systems don't need to build the
code.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Eric Biggers 
Link: https://lore.kernel.org/r/20230125065839.191256-3-hch@lst.de
Signed-off-by: Jens Axboe

hugetlb: make hugetlb depends on SYSFS or SYSCTL

2022-09-12T03:26:10+00:00

If CONFIG_SYSFS and CONFIG_SYSCTL are both undefined, hugetlb doesn't work
now as there's no way to set max huge pages. Make sure at least one of the
above configs is defined to make hugetlb works as expected.

Link: https://lkml.kernel.org/r/20220901120030.63318-11-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin 
Cc: Mike Kravetz 
Cc: Muchun Song 
Signed-off-by: Andrew Morton

mm: hugetlb_vmemmap: introduce the name HVO

2022-08-09T01:06:42+00:00

It it inconvenient to mention the feature of optimizing vmemmap pages
associated with HugeTLB pages when communicating with others since there
is no specific or abbreviated name for it when it is first introduced. 
Let us give it a name HVO (HugeTLB Vmemmap Optimization) from now.

This commit also updates the document about "hugetlb_free_vmemmap" by the
way discussed in thread [1].

Link: https://lore.kernel.org/all/21aae898-d54d-cc4b-a11f-1bb7fddcfffa@redhat.com/ [1]
Link: https://lkml.kernel.org/r/20220628092235.91270-4-songmuchun@bytedance.com
Signed-off-by: Muchun Song 
Reviewed-by: Oscar Salvador 
Reviewed-by: Mike Kravetz 
Cc: Anshuman Khandual 
Cc: Catalin Marinas 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Will Deacon 
Cc: Xiongchun Duan 
Signed-off-by: Andrew Morton

mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP*

2022-04-29T06:16:15+00:00

The word of "free" is not expressive enough to express the feature of
optimizing vmemmap pages associated with each HugeTLB, rename this keywork
to "optimize".  In this patch , cheanup configs to make code more
expressive.

Link: https://lkml.kernel.org/r/20220404074652.68024-4-songmuchun@bytedance.com
Signed-off-by: Muchun Song 
Cc: Mike Kravetz 
Cc: David Hildenbrand 
Signed-off-by: Andrew Morton

mm: hugetlb_vmemmap: introduce ARCH_WANT_HUGETLB_PAGE_FREE_VMEMMAP

2022-04-29T06:16:03+00:00

The feature of minimizing overhead of struct page associated with each
HugeTLB page is implemented on x86_64, however, the infrastructure of this
feature is already there, we could easily enable it for other
architectures.  Introduce ARCH_WANT_HUGETLB_PAGE_FREE_VMEMMAP for other
architectures to be easily enabled.  Just select this config if they want
to enable this feature.

Link: https://lkml.kernel.org/r/20220331065640.5777-1-songmuchun@bytedance.com
Signed-off-by: Muchun Song 
Suggested-by: Andrew Morton 
Reviewed-by: Barry Song 
Tested-by: Barry Song 
Reviewed-by: Anshuman Khandual 
Cc: Bodeddula Balasubramaniam 
Cc: Catalin Marinas 
Cc: David Hildenbrand 
Cc: David Rientjes 
Cc: Fam Zheng 
Cc: James Morse 
Cc: Mark Rutland 
Cc: Mike Kravetz 
Cc: Oscar Salvador 
Cc: Will Deacon 
Cc: Xiongchun Duan 
Signed-off-by: Andrew Morton

Merge tag 'folio-5.18c' of git://git.infradead.org/users/willy/pagecache

2022-03-23T00:03:12+00:00

Pull folio updates from Matthew Wilcox:

 - Rewrite how munlock works to massively reduce the contention on
   i_mmap_rwsem (Hugh Dickins):

     https://lore.kernel.org/linux-mm/8e4356d-9622-a7f0-b2c-f116b5f2efea@google.com/

 - Sort out the page refcount mess for ZONE_DEVICE pages (Christoph
   Hellwig):

     https://lore.kernel.org/linux-mm/20220210072828.2930359-1-hch@lst.de/

 - Convert GUP to use folios and make pincount available for order-1
   pages. (Matthew Wilcox)

 - Convert a few more truncation functions to use folios (Matthew
   Wilcox)

 - Convert page_vma_mapped_walk to use PFNs instead of pages (Matthew
   Wilcox)

 - Convert rmap_walk to use folios (Matthew Wilcox)

 - Convert most of shrink_page_list() to use a folio (Matthew Wilcox)

 - Add support for creating large folios in readahead (Matthew Wilcox)

* tag 'folio-5.18c' of git://git.infradead.org/users/willy/pagecache: (114 commits)
  mm/damon: minor cleanup for damon_pa_young
  selftests/vm/transhuge-stress: Support file-backed PMD folios
  mm/filemap: Support VM_HUGEPAGE for file mappings
  mm/readahead: Switch to page_cache_ra_order
  mm/readahead: Align file mappings for non-DAX
  mm/readahead: Add large folio readahead
  mm: Support arbitrary THP sizes
  mm: Make large folios depend on THP
  mm: Fix READ_ONLY_THP warning
  mm/filemap: Allow large folios to be added to the page cache
  mm: Turn can_split_huge_page() into can_split_folio()
  mm/vmscan: Convert pageout() to take a folio
  mm/vmscan: Turn page_check_references() into folio_check_references()
  mm/vmscan: Account large folios correctly
  mm/vmscan: Optimise shrink_page_list for non-PMD-sized folios
  mm/vmscan: Free non-shmem folios without splitting them
  mm/rmap: Constify the rmap_walk_control argument
  mm/rmap: Convert rmap_walk() to take a folio
  mm: Turn page_anon_vma() into folio_anon_vma()
  mm/rmap: Turn page_lock_anon_vma_read() into folio_lock_anon_vma_read()
  ...

NFSD: Remove CONFIG_NFSD_V3

2022-03-11T15:25:14+00:00

Eventually support for NFSv2 in the Linux NFS server is to be
deprecated and then removed.

However, NFSv2 is the "always supported" version that is available
as soon as CONFIG_NFSD is set.  Before NFSv2 support can be removed,
we need to choose a different "always supported" version.

This patch removes CONFIG_NFSD_V3 so that NFSv3 is always supported,
as NFSv2 is today. When NFSv2 support is removed, NFSv3 will become
the only "always supported" NFS version.

The defconfigs still need to be updated to remove CONFIG_NFSD_V3=y.

Signed-off-by: Chuck Lever

fsdax: depend on ZONE_DEVICE || FS_DAX_LIMITED

2022-03-03T17:47:33+00:00

Add a depends on ZONE_DEVICE support or the s390-specific limited DAX
support, as one of the two is required at runtime for fsdax code to
actually work.

Link: https://lkml.kernel.org/r/20220210072828.2930359-9-hch@lst.de
Signed-off-by: Christoph Hellwig 
Reviewed-by: Logan Gunthorpe 
Reviewed-by: Jason Gunthorpe 
Tested-by: "Sierra Guiza, Alejandro (Alex)" 

Cc: Alex Deucher 
Cc: Alistair Popple 
Cc: Ben Skeggs 
Cc: Chaitanya Kulkarni 
Cc: Christian Knig 
Cc: Dan Williams 
Cc: Felix Kuehling 
Cc: Karol Herbst 
Cc: Lyude Paul 
Cc: Miaohe Lin 
Cc: Muchun Song 
Cc: "Pan, Xinhui" 
Cc: Ralph Campbell 
Signed-off-by: Andrew Morton 
Signed-off-by: Matthew Wilcox (Oracle)