Merge tag 'bcachefs-2024-03-13' of https://evilpiepirate.org/git/bcachefs

Pull bcachefs updates from Kent Overstreet:

- Subvolume children btree; this is needed for providing a userspace
interf

Merge tag 'bcachefs-2024-03-13' of https://evilpiepirate.org/git/bcachefs

Pull bcachefs updates from Kent Overstreet:

- Subvolume children btree; this is needed for providing a userspace
interface for walking subvolumes, which will come later

- Lots of improvements to directory structure checking

- Improved journal pipelining, significantly improving performance on
high iodepth write workloads

- Discard path improvements: the discard path is more efficient, and no
longer flushes the journal unnecessarily

- Buffered write path can now avoid taking the inode lock

- new mm helper: memalloc_flags_{save|restore}

- mempool now does kvmalloc mempools

* tag 'bcachefs-2024-03-13' of https://evilpiepirate.org/git/bcachefs: (128 commits)
bcachefs: time_stats: shrink time_stat_buffer for better alignment
bcachefs: time_stats: split stats-with-quantiles into a separate structure
bcachefs: mean_and_variance: put struct mean_and_variance_weighted on a diet
bcachefs: time_stats: add larger units
bcachefs: pull out time_stats.[ch]
bcachefs: reconstruct_alloc cleanup
bcachefs: fix bch_folio_sector padding
bcachefs: Fix btree key cache coherency during replay
bcachefs: Always flush write buffer in delete_dead_inodes()
bcachefs: Fix order of gc_done passes
bcachefs: fix deletion of indirect extents in btree_gc
bcachefs: Prefer struct_size over open coded arithmetic
bcachefs: Kill unused flags argument to btree_split()
bcachefs: Check for writing superblocks with nonsense member seq fields
bcachefs: fix bch2_journal_buf_to_text()
lib/generic-radix-tree.c: Make nodes more reasonably sized
bcachefs: copy_(to|from)_user_errcode()
bcachefs: Split out bkey_types.h
bcachefs: fix lost journal buf wakeup due to improved pipelining
bcachefs: intercept mountoption value for bool type
...

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bcachefs: Prefer struct_size over open coded arithmetic

This is an effort to get rid of all multiplications from allocation
functions in order to prevent integer overflows [1][2].

As the "op" varia

bcachefs: Prefer struct_size over open coded arithmetic

This is an effort to get rid of all multiplications from allocation
functions in order to prevent integer overflows [1][2].

As the "op" variable is a pointer to "struct promote_op" and this
structure ends in a flexible array:

struct promote_op {
[...]
struct bio_vec bi_inline_vecs[];
};

and the "t" variable is a pointer to "struct journal_seq_blacklist_table"
and this structure also ends in a flexible array:

struct journal_seq_blacklist_table {
[...]
struct journal_seq_blacklist_table_entry {
u64 start;
u64 end;
bool dirty;
} entries[];
};

the preferred way in the kernel is to use the struct_size() helper to
do the arithmetic instead of the argument "size + size * count" in the
kzalloc() functions.

This way, the code is more readable and safer.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [1]
Link: https://github.com/KSPP/linux/issues/160 [2]
Signed-off-by: Erick Archer <erick.archer@gmx.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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Merge tag 'drm-misc-next-2024-02-08' into msm-next

Merge the drm-misc tree to uprev MSM CI.

Signed-off-by: Rob Clark <robdclark@chromium.org>

Merge drm/drm-next into drm-misc-next

Kickstart 6.9 development cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge drm/drm-next into drm-xe-next

Sync to v6.8-rc1.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

Merge drm/drm-next into drm-intel-next

Backmerge to bring Xe driver to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Merge branch 'linus' into x86/mm, to refresh the branch and pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'master' into mm-hotfixes-stable

Merge v6.8-rc1 into drm-misc-fixes

Let's kickstart the 6.8 fix cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Merge 6.7-rc5 into tty-next

We need the serial fixes in here as well to build off of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 6.7-rc5 into usb-next

We need the USB fixes in here as well to build off of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'loongarch-kvm-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD

LoongArch KVM changes for v6.8

1. Optimization for memslot hugepage checking.
2. C

Merge tag 'loongarch-kvm-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson into HEAD

LoongArch KVM changes for v6.8

1. Optimization for memslot hugepage checking.
2. Cleanup and fix some HW/SW timer issues.
3. Add LSX/LASX (128bit/256bit SIMD) support.

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Merge 6.7-rc5 into char-misc-next

We need the char/misc fixes in here as well for testing and to build off
of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge branch 'for-6.8/amd-sfh' into for-linus

- addition of new interfaces to export User presence information and
Ambient light from amd-sfh to other drivers within the kernel (Basavaraj
Natika

Merge branch 'for-6.8/amd-sfh' into for-linus

- addition of new interfaces to export User presence information and
Ambient light from amd-sfh to other drivers within the kernel (Basavaraj
Natikar)

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Merge tag 'v6.7-rc7' into gpio/for-next

Linux 6.7-rc7

Expose c0 and SW encap ICM for RDMA

These two series from Mark and Shun extend RDMA mlx5 API.

Mark's series provides c0 register used to match egress
traffic sent by local device.

Shun's series ad

Expose c0 and SW encap ICM for RDMA

These two series from Mark and Shun extend RDMA mlx5 API.

Mark's series provides c0 register used to match egress
traffic sent by local device.

Shun's series adds new type for ICM area.

Link: https://lore.kernel.org/all/cover.1701871118.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Merge tag 'exynos-drm-next-for-v6.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into exynos-drm-next

Two fixups
- Fix a potential error pointer dereference by checking t

Merge tag 'exynos-drm-next-for-v6.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into exynos-drm-next

Two fixups
- Fix a potential error pointer dereference by checking the return value
of exynos_drm_crtc_get_by_type() function before accessing to crtc
object.
- Fix a wrong error checking in exynos_drm_dma.c modules, which was reported
by Dan[1]

[1] https://lore.kernel.org/all/33e52277-1349-472b-a55b-ab5c3462bfcf@moroto.mountain/

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Backmerge tag 'v6.7-rc5' into drm-next

Linux 6.7-rc5

Alex requested this for some amdkfd work relying on the symbols exports.

Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge tag 'v6.7-rc4' into media_stage

Linux 6.7-rc4

This is needed for a vsp1 fix that upcoming media patches depend on.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/stmicro/stmmac/dwmac5.c
drivers/net/ethernet/stmicr

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

Conflicts:

drivers/net/ethernet/stmicro/stmmac/dwmac5.c
drivers/net/ethernet/stmicro/stmmac/dwmac5.h
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
drivers/net/ethernet/stmicro/stmmac/hwif.h
37e4b8df27bc ("net: stmmac: fix FPE events losing")
c3f3b97238f6 ("net: stmmac: Refactor EST implementation")
https://lore.kernel.org/all/20231206110306.01e91114@canb.auug.org.au/

Adjacent changes:

net/ipv4/tcp_ao.c
9396c4ee93f9 ("net/tcp: Don't store TCP-AO maclen on reqsk")
7b0f570f879a ("tcp: Move TCP-AO bits from cookie_v[46]_check() to tcp_ao_syncookie().")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Merge tag 'bcachefs-2024-01-10' of https://evilpiepirate.org/git/bcachefs

Pull bcachefs updates from Kent Overstreet:

- btree write buffer rewrite: instead of adding keys to the btree write
buf

Merge tag 'bcachefs-2024-01-10' of https://evilpiepirate.org/git/bcachefs

Pull bcachefs updates from Kent Overstreet:

- btree write buffer rewrite: instead of adding keys to the btree write
buffer at transaction commit time, we now journal them with a
different journal entry type and copy them from the journal to the
write buffer just prior to journal write.

This reduces the number of atomic operations on shared cachelines in
the transaction commit path and is a signicant performance
improvement on some workloads: multithreaded 4k random writes went
from ~650k iops to ~850k iops.

- Bring back optimistic spinning for six locks: the new implementation
doesn't use osq locks; instead we add to the lock waitlist as normal,
and then spin on the lock_acquired bit in the waitlist entry, _not_
the lock itself.

- New ioctls:

- BCH_IOCTL_DEV_USAGE_V2, which allows for new data types

- BCH_IOCTL_OFFLINE_FSCK, which runs the kernel implementation of
fsck but without mounting: useful for transparently using the
kernel version of fsck from 'bcachefs fsck' when the kernel
version is a better match for the on disk filesystem.

- BCH_IOCTL_ONLINE_FSCK: online fsck. Not all passes are supported
yet, but the passes that are supported are fully featured - errors
may be corrected as normal.

The new ioctls use the new 'thread_with_file' abstraction for kicking
off a kthread that's tied to a file descriptor returned to userspace
via the ioctl.

- btree_paths within a btree_trans are now dynamically growable,
instead of being limited to 64. This is important for the
check_directory_structure phase of fsck, and also fixes some issues
we were having with btree path overflow in the reflink btree.

- Trigger refactoring; prep work for the upcoming disk space accounting
rewrite

- Numerous bugfixes :)

* tag 'bcachefs-2024-01-10' of https://evilpiepirate.org/git/bcachefs: (226 commits)
bcachefs: eytzinger0_find() search should be const
bcachefs: move "ptrs not changing" optimization to bch2_trigger_extent()
bcachefs: fix simulateously upgrading & downgrading
bcachefs: Restart recovery passes more reliably
bcachefs: bch2_dump_bset() doesn't choke on u64s == 0
bcachefs: improve checksum error messages
bcachefs: improve validate_bset_keys()
bcachefs: print sb magic when relevant
bcachefs: __bch2_sb_field_to_text()
bcachefs: %pg is banished
bcachefs: Improve would_deadlock trace event
bcachefs: fsck_err()s don't need to manually check c->sb.version anymore
bcachefs: Upgrades now specify errors to fix, like downgrades
bcachefs: no thread_with_file in userspace
bcachefs: Don't autofix errors we can't fix
bcachefs: add missing bch2_latency_acct() call
bcachefs: increase max_active on io_complete_wq
bcachefs: add time_stats for btree_node_read_done()
bcachefs: don't clear accessed bit in btree node fill
bcachefs: Add an option to control btree node prefetching
...

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bcachefs: improve checksum error messages

new helpers:
- bch2_csum_to_text()
- bch2_csum_err_msg()

standardize our checksum error messages a bit, and print out the
checksums a bit more nicely.

S

bcachefs: improve checksum error messages

new helpers:
- bch2_csum_to_text()
- bch2_csum_err_msg()

standardize our checksum error messages a bit, and print out the
checksums a bit more nicely.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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