Commit 54c23548 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'mm-hotfixes-stable-2024-04-18-14-41' of... 

Merge tag 'mm-hotfixes-stable-2024-04-18-14-41' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "15 hotfixes. 9 are cc:stable and the remainder address post-6.8 issues
  or aren't considered suitable for backporting.

  There are a significant number of fixups for this cycle's page_owner
  changes (series "page_owner: print stacks and their outstanding
  allocations"). Apart from that, singleton changes all over, mainly in
  MM"

* tag 'mm-hotfixes-stable-2024-04-18-14-41' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  nilfs2: fix OOB in nilfs_set_de_type
  MAINTAINERS: update Naoya Horiguchi's email address
  fork: defer linking file vma until vma is fully initialized
  mm/shmem: inline shmem_is_huge() for disabled transparent hugepages
  mm,page_owner: defer enablement of static branch
  Squashfs: check the inode number is not the invalid value of zero
  mm,swapops: update check in is_pfn_swap_entry for hwpoison entries
  mm/memory-failure: fix deadlock when hugetlb_optimize_vmemmap is enabled
  mm/userfaultfd: allow hugetlb change protection upon poison entry
  mm,page_owner: fix printing of stack records
  mm,page_owner: fix accounting of pages when migrating
  mm,page_owner: fix refcount imbalance
  mm,page_owner: update metadata for tail pages
  userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE
  mm/madvise: make MADV_POPULATE_(READ|WRITE) handle VM_FAULT_RETRY properly
parents 2668e3ae c4a7dc95

.mailmap

+2 −1
Original line number Diff line number Diff line
@@ -446,7 +446,8 @@ Mythri P K <mythripk@ti.com> 
Nadav Amit <nadav.amit@gmail.com> <namit@vmware.com>

Nadav Amit <nadav.amit@gmail.com> <namit@cs.technion.ac.il>

Nadia Yvette Chambers <nyc@holomorphy.com> William Lee Irwin III <wli@holomorphy.com>

Naoya Horiguchi <naoya.horiguchi@nec.com> <n-horiguchi@ah.jp.nec.com>

Naoya Horiguchi <nao.horiguchi@gmail.com> <n-horiguchi@ah.jp.nec.com>

Naoya Horiguchi <nao.horiguchi@gmail.com> <naoya.horiguchi@nec.com>

Nathan Chancellor <nathan@kernel.org> <natechancellor@gmail.com>

Neeraj Upadhyay <quic_neeraju@quicinc.com> <neeraju@codeaurora.org>

Neil Armstrong <neil.armstrong@linaro.org> <narmstrong@baylibre.com>

Documentation/mm/page_owner.rst

+38 −35
Original line number Diff line number Diff line
@@ -24,10 +24,10 @@ fragmentation statistics can be obtained through gfp flag information of 
each page. It is already implemented and activated if page owner is

enabled. Other usages are more than welcome.



It can also be used to show all the stacks and their outstanding

allocations, which gives us a quick overview of where the memory is going

without the need to screen through all the pages and match the allocation

and free operation.

It can also be used to show all the stacks and their current number of

allocated base pages, which gives us a quick overview of where the memory

is going without the need to screen through all the pages and match the

allocation and free operation.



page owner is disabled by default. So, if you'd like to use it, you need

to add "page_owner=on" to your boot cmdline. If the kernel is built
@@ -75,42 +75,45 @@ Usage 


	cat /sys/kernel/debug/page_owner_stacks/show_stacks > stacks.txt

	cat stacks.txt

	 prep_new_page+0xa9/0x120

	 get_page_from_freelist+0x7e6/0x2140

	 __alloc_pages+0x18a/0x370

	 new_slab+0xc8/0x580

	 ___slab_alloc+0x1f2/0xaf0

	 __slab_alloc.isra.86+0x22/0x40

	 kmem_cache_alloc+0x31b/0x350

	 __khugepaged_enter+0x39/0x100

	 dup_mmap+0x1c7/0x5ce

	 copy_process+0x1afe/0x1c90

	 kernel_clone+0x9a/0x3c0

	 __do_sys_clone+0x66/0x90

	 do_syscall_64+0x7f/0x160

	 entry_SYSCALL_64_after_hwframe+0x6c/0x74

	stack_count: 234

	 post_alloc_hook+0x177/0x1a0

	 get_page_from_freelist+0xd01/0xd80

	 __alloc_pages+0x39e/0x7e0

	 allocate_slab+0xbc/0x3f0

	 ___slab_alloc+0x528/0x8a0

	 kmem_cache_alloc+0x224/0x3b0

	 sk_prot_alloc+0x58/0x1a0

	 sk_alloc+0x32/0x4f0

	 inet_create+0x427/0xb50

	 __sock_create+0x2e4/0x650

	 inet_ctl_sock_create+0x30/0x180

	 igmp_net_init+0xc1/0x130

	 ops_init+0x167/0x410

	 setup_net+0x304/0xa60

	 copy_net_ns+0x29b/0x4a0

	 create_new_namespaces+0x4a1/0x820

	nr_base_pages: 16

	...

	...

	echo 7000 > /sys/kernel/debug/page_owner_stacks/count_threshold

	cat /sys/kernel/debug/page_owner_stacks/show_stacks> stacks_7000.txt

	cat stacks_7000.txt

	 prep_new_page+0xa9/0x120

	 get_page_from_freelist+0x7e6/0x2140

	 __alloc_pages+0x18a/0x370

	 alloc_pages_mpol+0xdf/0x1e0

	 folio_alloc+0x14/0x50

	 filemap_alloc_folio+0xb0/0x100

	 page_cache_ra_unbounded+0x97/0x180

	 filemap_fault+0x4b4/0x1200

	 __do_fault+0x2d/0x110

	 do_pte_missing+0x4b0/0xa30

	 __handle_mm_fault+0x7fa/0xb70

	 handle_mm_fault+0x125/0x300

	 do_user_addr_fault+0x3c9/0x840

	 exc_page_fault+0x68/0x150

	 asm_exc_page_fault+0x22/0x30

	stack_count: 8248

	 post_alloc_hook+0x177/0x1a0

	 get_page_from_freelist+0xd01/0xd80

	 __alloc_pages+0x39e/0x7e0

	 alloc_pages_mpol+0x22e/0x490

	 folio_alloc+0xd5/0x110

	 filemap_alloc_folio+0x78/0x230

	 page_cache_ra_order+0x287/0x6f0

	 filemap_get_pages+0x517/0x1160

	 filemap_read+0x304/0x9f0

	 xfs_file_buffered_read+0xe6/0x1d0 [xfs]

	 xfs_file_read_iter+0x1f0/0x380 [xfs]

	 __kernel_read+0x3b9/0x730

	 kernel_read_file+0x309/0x4d0

	 __do_sys_finit_module+0x381/0x730

	 do_syscall_64+0x8d/0x150

	 entry_SYSCALL_64_after_hwframe+0x62/0x6a

	nr_base_pages: 20824

	...



	cat /sys/kernel/debug/page_owner > page_owner_full.txt

MAINTAINERS

+1 −1
Original line number Diff line number Diff line
@@ -10024,7 +10024,7 @@ F: drivers/media/platform/st/sti/hva 








HWPOISON MEMORY FAILURE HANDLING









M:	Miaohe Lin <linmiaohe@huawei.com>









R:	Naoya Horiguchi <naoya.horiguchi@nec.com>









R:	Naoya Horiguchi <nao.horiguchi@gmail.com>









L:	linux-mm@kvack.org









S:	Maintained









F:	mm/hwpoison-inject.c
































fs/nilfs2/dir.c



+1
−1






























Original line number
Diff line number
Diff line







@@ -240,7 +240,7 @@ nilfs_filetype_table[NILFS_FT_MAX] = {

















#define S_SHIFT 12









static unsigned char









nilfs_type_by_mode[S_IFMT >> S_SHIFT] = {









nilfs_type_by_mode[(S_IFMT >> S_SHIFT) + 1] = {









	[S_IFREG >> S_SHIFT]	= NILFS_FT_REG_FILE,









	[S_IFDIR >> S_SHIFT]	= NILFS_FT_DIR,









	[S_IFCHR >> S_SHIFT]	= NILFS_FT_CHRDEV,
































fs/squashfs/inode.c



+4
−1






























Original line number
Diff line number
Diff line







@@ -48,6 +48,10 @@ static int squashfs_new_inode(struct super_block *sb, struct inode *inode,







	gid_t i_gid;









	int err;



















	inode->i_ino = le32_to_cpu(sqsh_ino->inode_number);









	if (inode->i_ino == 0)









		return -EINVAL;



















	err = squashfs_get_id(sb, le16_to_cpu(sqsh_ino->uid), &i_uid);









	if (err)









		return err;








@@ -58,7 +62,6 @@ static int squashfs_new_inode(struct super_block *sb, struct inode *inode,

















	i_uid_write(inode, i_uid);









	i_gid_write(inode, i_gid);









	inode->i_ino = le32_to_cpu(sqsh_ino->inode_number);









	inode_set_mtime(inode, le32_to_cpu(sqsh_ino->mtime), 0);









	inode_set_atime(inode, inode_get_mtime_sec(inode), 0);









	inode_set_ctime(inode, inode_get_mtime_sec(inode), 0);