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Linux Kernel

The mainline Linux kernel.

Recent Activity

Merge tag 'net-6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds

afs: Enable multipage folio support
David Howells: Enable multipage folio support for the afs filesystem. Support has already been implemented in netfslib, fscache and cachefiles and in most of afs, but I've waited for Matthew Wilcox's latest folio changes. Note that it does require a change to afs_write_begin() to return the correct subpage.

x86: link vdso and boot with -z noexecstack --no-warn-rwx-segments
Nick Desaulniers: Users of GNU ld (BFD) from binutils 2.39+ will observe multiple instances of a new warning when linking kernels in the form: ld: warning: arch/x86/boot/pmjump.o: missing .note.GNU-stack section implies executable stack ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ld: warning: arch/x86/boot/compressed/vmlinux has a LOAD segment with RWX permissions Generally, we would like to avoid the stack being executable.

ITER_PIPE: cache the type of last buffer
Al Viro: We often need to find whether the last buffer is anon or not, and currently it's rather clumsy: check if ->iov_offset is non-zero (i.e.

Activity Earlier In The Year

Merge tag 'irq-core-2022-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus Torvalds

certs: make system keyring depend on x509 parser
Adam Borowski: This code requires x509_load_certificate_list() to be built-in.

Merge tag 'printk-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Linus Torvalds

firmware_loader: enable XZ by default if compressed support is enabled
Linus Torvalds: Commit 23cfbc6ec44e ("firmware: Add the support for ZSTD-compressed firmware files") added support for ZSTD compression, but in the process also made the previously default XZ compression a config option. That means that anybody who upgrades their kernel and does a make oldconfig to update their configuration, will end up without the XZ compression that the configuration used to have. Add the 'default y' to make sure this doesn't happen. The whole compression question should probably be improved upon, since it is now possible to "enable" compression in the kernel config but not enable any actual compression algorithm, which makes it all very useless.

Merge tag 'char-misc-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Linus Torvalds

Merge tag 'staging-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Linus Torvalds

Merge tag 'thermal-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds

Docs/ABI/testing: add DAMON sysfs interface ABI document
SeongJae Park: This commit adds DAMON sysfs interface ABI document under Documentation/ABI/testing.

Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface
SeongJae Park: This commit adds detailed usage of DAMON sysfs interface in the admin-guide document for DAMON.

mm/damon/sysfs: support DAMOS stats
SeongJae Park: This commit makes DAMON sysfs interface supports the DAMOS stats feature.

Linux Kernel Release Tags

Linux 6.0-rc7
Linus Torvalds

Linux 6.0-rc6
Linus Torvalds

Linux 6.0-rc4
Linus Torvalds

Linux 6.0-rc3
Linus Torvalds

Linux 6.0-rc2
Linus Torvalds

Linux 6.0-rc1
Linus Torvalds

Linux 5.19-rc8
Linus Torvalds

Linux 5.19-rc5
Linus Torvalds

Linux 5.19-rc4
Linus Torvalds

Linux 5.19-rc3
Linus Torvalds

Most Popular This Year

arch: Add generic Kconfig option indicating page size smaller than 64k
Guenter Roeck: NTFS_RW and VMXNET3 require a page size smaller than 64kB.

net: dsa: microchip: implement multi-bridge support
Oleksij Rempel: Current driver version is able to handle only one bridge at time.

mm: vmscan: reduce throttling due to a failure to make progress -fix
Mel Gorman: Hugh Dickins reported the following My tmpfs swapping load (tweaked to use huge pages more heavily than in real life) is far from being a realistic load: but it was notably slowed down by your throttling mods in 5.16-rc, and this patch makes it well again - thanks. But: it very quickly hit NULL pointer until I changed that last line to if (first_pgdat) consider_reclaim_throttle(first_pgdat, sc); The likely issue is that huge pages are a major component of the test workload.

mm: vmscan: Reduce throttling due to a failure to make progress
Mel Gorman: Mike Galbraith, Alexey Avramov and Darrick Wong all reported similar problems due to reclaim throttling for excessive lengths of time.

HID: wacom: Reset expected and received contact counts at the same time
Jason Gerecke: These two values go hand-in-hand and must be valid for the driver to behave correctly.

mm: handle uninitialized numa nodes gracefully
Michal Hocko: We have had several reports [1][2][3] that page allocator blows up when an allocation from a possible node is requested.

mm: hugetlb: free the 2nd vmemmap page associated with each HugeTLB page
Muchun Song: Patch series "Free the 2nd vmemmap page associated with each HugeTLB page", v7. This series can minimize the overhead of struct page for 2MB HugeTLB pages significantly.

mm: sparsemem: use page table lock to protect kernel pmd operations
Muchun Song: The init_mm.page_table_lock is used to protect kernel page tables, we can use it to serialize splitting vmemmap PMD mappings instead of mmap write lock, which can increase the concurrency of vmemmap_remap_free(). Actually, It increase the concurrency between allocations of HugeTLB pages.

mm: invalidate hwpoison page cache page in fault path
Rik van Riel: Sometimes the page offlining code can leave behind a hwpoisoned clean page cache page.

memcg: unify force charging conditions
Shakeel Butt: Currently the kernel force charges the allocations which have __GFP_HIGH flag without triggering the memory reclaim.

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