[PATCH] Documentation: devices.txt: reconcile serial/ucc_uart minor numers

Reconcile devices.txt with serial/ucc_uart.c regarding device number assignments. ucc_uart.c supports 4 ports and uses minor devnums 46-49, so update devices.txt with that info. Then update ucc_uart.c's reference to the location of the devices.txt list in the kernel source tree. Fixes: d7584ed2b99

Re: [RFC PATCH v11 08/29] KVM: Introduce per-page memory attributes

On 2023-07-18 at 16:44:51 -0700, Sean Christopherson wrote: > From: Chao Peng > > In confidential computing usages, whether a page is private or shared is > necessary information for KVM to perform operations like page fault > handling, page zapping etc. There are other potential use cases for >

[PATCH v3 11/13 fix] mm/khugepaged: delete khugepaged_collapse_pte_mapped_thps(): fix

Though not yet detected by syzbot, this commit was making the same mistake with mmap_locked as the previous commit: fix that. Signed-off-by: Hugh Dickins --- mm/khugepaged.c | 8 +++- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 1c773d

[PATCH v3 10/13 fix] mm/khugepaged: collapse_pte_mapped_thp() with mmap_read_lock(): fix

madvise_collapse() setting "mmap_locked = true" after calling collapse_pte_mapped_thp() looked good but was wrong. If the loop then moves on to the next extent, mmap_locked assures it that "vma" has been revalidated under mmap_lock, which was not the case: and led to UAFs, crashes in __fput() or t

[PATCH v3 07/13 fix] s390: add pte_free_defer() for pgtables sharing page: fix

Claudio finds warning on mm_has_pgste() more useful than on mm_alloc_pgste(). Signed-off-by: Hugh Dickins --- arch/s390/mm/pgalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c index 760b4ace475e..d7374add7820 100644 --- a/a

[PATCH v3 04/13 fix] powerpc: assert_pte_locked() use pte_offset_map_nolock(): fix

Aneesh points out that assert_pte_locked() still needs the pmd_none() check, to stop crashing in khugepaged: restore that comment and check. Andrew, when merging with original commit, please edit its 1st para to: Instead of pte_lockptr(), use the recently added pte_offset_map_nolock() in assert_p

[powerpc:next-test] BUILD SUCCESS 6391d2478e2f6fc8db2c78f62b13085fd5dfb10e

configs have been built successfully. More configs may be tested in the coming days. tested configs: powerpc allmodconfig gcc powerpc allnoconfig gcc powerpc randconfig-r022-20230723 gcc powerpc randconfig-r032

[powerpc:merge] BUILD SUCCESS 78d5db798c25671640510aaa4b46a3dbee24a63f

been built successfully. More configs may be tested in the coming days. tested configs: alphaallyesconfig gcc alpha defconfig gcc alpharandconfig-r015-20230723 gcc alpharandconfig-r021-20230723