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Merge tag 'for-6.8-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- zoned mode fixes:
- fix slowdown when writing large file sequentially by looking up
block groups with enough space faster
- locking fixes when activating a zone
- new mount API fixes:
- preserve mount options for a ro/rw mount of the same subvolume
- scrub fixes:
- fix use-after-free in case the chunk length is not aligned to
64K, this does not happen normally but has been reported on
images converted from ext4
- similar alignment check was missing with raid-stripe-tree
- subvolume deletion fixes:
- prevent calling ioctl on already deleted subvolume
- properly track flag tracking a deleted subvolume
- in subpage mode, fix decompression of an inline extent (zlib, lzo,
zstd)
- fix crash when starting writeback on a folio, after integration with
recent MM changes this needs to be started conditionally
- reject unknown flags in defrag ioctl
- error handling, API fixes, minor warning fixes
* tag 'for-6.8-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: scrub: limit RST scrub to chunk boundary
btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned
btrfs: don't unconditionally call folio_start_writeback in subpage
btrfs: use the original mount's mount options for the legacy reconfigure
btrfs: don't warn if discard range is not aligned to sector
btrfs: tree-checker: fix inline ref size in error messages
btrfs: zstd: fix and simplify the inline extent decompression
btrfs: lzo: fix and simplify the inline extent decompression
btrfs: zlib: fix and simplify the inline extent decompression
btrfs: defrag: reject unknown flags of btrfs_ioctl_defrag_range_args
btrfs: avoid copying BTRFS_ROOT_SUBVOL_DEAD flag to snapshot of subvolume being deleted
btrfs: don't abort filesystem when attempting to snapshot deleted subvolume
btrfs: zoned: fix lock ordering in btrfs_zone_activate()
btrfs: fix unbalanced unlock of mapping_tree_lock
btrfs: ref-verify: free ref cache before clearing mount opt
btrfs: fix kvcalloc() arguments order in btrfs_ioctl_send()
btrfs: zoned: optimize hint byte for zoned allocator
btrfs: zoned: factor out prepare_allocation_zoned()
Hi Linus,
Please, pull the following patches that enable -Wstringop-overflow,
globally. These patches have been baking in linux-next for a whole
development cycle.
I waited for the release of -rc1 to run a final build-test on top of
it before sending this pull request. Fortunatelly, after building
358 kernels overnight (basically all supported archs with a wide
variety of configs), no more warnings have surfaced! :)
Thus, we are in a good position to enable this compiler option for
all versions of GCC that support it, with the exception of GCC-11,
which appears to have some issues with this option[1].
[1] https://lore.kernel.org/lkml/b3c99290-40bc-426f-b3d2-1aa903f95c4e@embeddedor.com/
Thanks
--
Gustavo
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Merge tag 'Wstringop-overflow-for-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull stringop-overflow warning update from Gustavo A. R. Silva:
"Enable -Wstringop-overflow globally.
I waited for the release of -rc1 to run a final build-test on top of
it before sending this pull request. Fortunatelly, after building 358
kernels overnight (basically all supported archs with a wide variety
of configs), no more warnings have surfaced! :)
Thus, we are in a good position to enable this compiler option for all
versions of GCC that support it, with the exception of GCC-11, which
appears to have some issues with this option [1]"
Link: https://lore.kernel.org/lkml/b3c99290-40bc-426f-b3d2-1aa903f95c4e@embeddedor.com/ [1]
* tag 'Wstringop-overflow-for-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
init: Kconfig: Disable -Wstringop-overflow for GCC-11
Makefile: Enable -Wstringop-overflow globally
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Merge tag 'xsa448-6.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen netback fix from Juergen Gross:
"Transmit requests in Xen's virtual network protocol can consist of
multiple parts. While not really useful, except for the initial part
any of them may be of zero length, i.e. carry no data at all.
Besides a certain initial portion of the to be transferred data, these
parts are directly translated into what Linux calls SKB fragments.
Such converted request parts can, when for a particular SKB they are
all of length zero, lead to a de-reference of NULL in core networking
code"
* tag 'xsa448-6.8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-netback: don't produce zero-size SKB frags
It seems that we have finished addressing all the remaining
issues regarding -Wstringop-overflow. So, we are now in good
shape to enable this compiler option globally.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
- assorted prep work for disk space accounting rewrite
- BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
makes our trigger context more explicit
- A few fixes to avoid excessive transaction restarts on multithreaded
workloads: fstests (in addition to ktest tests) are now checking
slowpath counters, and that's shaking out a few bugs
- Assorted tracepoint improvements
- Starting to break up bcachefs_format.h and move on disk types so
they're with the code they belong to; this will make room to start
documenting the on disk format better.
- A few minor fixes
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Merge tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs
Pull more bcachefs updates from Kent Overstreet:
"Some fixes, Some refactoring, some minor features:
- Assorted prep work for disk space accounting rewrite
- BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
makes our trigger context more explicit
- A few fixes to avoid excessive transaction restarts on
multithreaded workloads: fstests (in addition to ktest tests) are
now checking slowpath counters, and that's shaking out a few bugs
- Assorted tracepoint improvements
- Starting to break up bcachefs_format.h and move on disk types so
they're with the code they belong to; this will make room to start
documenting the on disk format better.
- A few minor fixes"
* tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits)
bcachefs: Improve inode_to_text()
bcachefs: logged_ops_format.h
bcachefs: reflink_format.h
bcachefs; extents_format.h
bcachefs: ec_format.h
bcachefs: subvolume_format.h
bcachefs: snapshot_format.h
bcachefs: alloc_background_format.h
bcachefs: xattr_format.h
bcachefs: dirent_format.h
bcachefs: inode_format.h
bcachefs; quota_format.h
bcachefs: sb-counters_format.h
bcachefs: counters.c -> sb-counters.c
bcachefs: comment bch_subvolume
bcachefs: bch_snapshot::btime
bcachefs: add missing __GFP_NOWARN
bcachefs: opts->compression can now also be applied in the background
bcachefs: Prep work for variable size btree node buffers
bcachefs: grab s_umount only if snapshotting
...
- A fix for the idle and iowait time accounting vs. CPU hotplug.
The time is reset on CPU hotplug which makes the accumulated
systemwide time jump backwards.
- Assorted fixes and improvements for clocksource/event drivers
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Merge tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Updates for time and clocksources:
- A fix for the idle and iowait time accounting vs CPU hotplug.
The time is reset on CPU hotplug which makes the accumulated
systemwide time jump backwards.
- Assorted fixes and improvements for clocksource/event drivers"
* tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug
clocksource/drivers/ep93xx: Fix error handling during probe
clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings
clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings
clocksource/timer-riscv: Add riscv_clock_shutdown callback
dt-bindings: timer: Add StarFive JH8100 clint
dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs
- 18f14afe2816 powerpc/64s: Increase default stack size to 32KB BY: Michael Ellerman
Thanks to:
Michael Ellerman
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Merge tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Aneesh Kumar:
- Increase default stack size to 32KB for Book3S
Thanks to Michael Ellerman.
* tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Increase default stack size to 32KB
Add a field to bch_snapshot for creation time; this will be important
when we start exposing the snapshot tree to userspace.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The "apply this compression method in the background" paths now use the
compression option if background_compression is not set; this means that
setting or changing the compression option will cause existing data to
be compressed accordingly in the background.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs btree nodes are big - typically 256k - and btree roots are
pinned in memory. As we're now up to 18 btrees, we now have significant
memory overhead in mostly empty btree roots.
And in the future we're going to start enforcing that certain btree node
boundaries exist, to solve lock contention issues - analagous to XFS's
AGIs.
Thus, we need to start allocating smaller btree node buffers when we
can. This patch changes code that refers to the filesystem constant
c->opts.btree_node_size to refer to the btree node buffer size -
btree_buf_bytes() - where appropriate.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The variable tmp is being assigned a value but it isn't being
read afterwards. The assignment is redundant and so tmp can be
removed.
Cleans up clang scan build warning:
warning: Although the value stored to 'ret' is used in the enclosing
expression, the value is never actually read from 'ret'
[deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
drop_locks_do() should not be used in a fastpath without first trying
the do in nonblocking mode - the unlock and relock will cause excessive
transaction restarts and potentially livelocking with other threads that
are contending for the same locks.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Factor out bch2_journal_bufs_to_text(), and use it in the
journal_entry_full() tracepoint; when we can't get a journal reservation
we need to know the outstanding journal entry sizes to know if the
problem is due to excessive flushing.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
When issuing discards, we may need to flush the journal if there's too
many buckets that can't be discarded until a journal flush.
But the heuristic was bad; we should be comparing the number of buckets
that need to flushes against the number of free buckets, not the number
of buckets we saw.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Also print out the data_opts, so that we can see what specifically is
being done to an extent.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This fixes a bug with rebalance IOs getting stuck with reads completed,
but writes never being issued.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Drop t he loop in bch2_kthread_io_clock_wait(): this allows the code
that uses it to be woken up for other reasons, and fixes a bug where
rebalance wouldn't wake up when a scan was requested.
This raises the possibility of spurious wakeups, but callers should
always be able to handle that reasonably well.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Merge tag 'header_cleanup-2024-01-20' of https://evilpiepirate.org/git/bcachefs
Pull header fix from Kent Overstreet:
"Just one small fixup for the RT build"
* tag 'header_cleanup-2024-01-20' of https://evilpiepirate.org/git/bcachefs:
spinlock: Fix failing build for PREEMPT_RT
We don't have to take locks in any particular ordering - we'll make
forward progress just fine - but if we try to stick to an ordering, it
can help to avoid excessive would_deadlock transaction restarts.
This tweaks the reflink path to take extents btree locks in the right
order.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The disk space accounting rewrite is splitting out accounting for each
replicas set - those are moving to btree keys, instead of percpu
counters.
This breaks bch2_trans_fs_usage_apply() up, splitting out the part we
will still need.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Split out base filesystem usage into its own type; prep work for
breaking up bch2_trans_fs_usage_apply().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
