| Age | Commit message (Collapse) | Author |
|---|
|
Kill 'opts.very_degraded', and make 'opts.degraded' a persistent option,
stored in the superblock.
It's now an enum, with available choices ask/yes/very/no.
"ask" mode will be handled by the mount helper, for prompting the user
(on a machine used interactively) for whether to do a degraded mount.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
When an invalid compression type or level is passed as an argument
to `--compression`, two error messages are squashed into one line:
> bcachefs format --compression=lzo bcachefs-comp.img
invalid option: invalid compression typecompression: parse error
> bcachefs format --compression=lz4:16 bcachefs-comp.img
invalid option: invalid compression levelcompression: parse error
To resolve this issue, add a newline character at the end of the
first error message to separate them into two lines.
Signed-off-by: Integral <integral@archlinuxcn.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Currently, when passing a negative integer as argument, the error
message is "too big" due to casting to an unsigned integer:
> bcachefs format --block_size=-1 bcachefs.img
invalid option: block_size: too big (max 65536)
When negative value in argument detected, return early before
calling bch2_opt_validate().
A new error code `BCH_ERR_option_negative` is added.
Signed-off-by: Integral <integral@archlinuxcn.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
If a filesystem is going to only be used read-only, and will be a
deployable image, we can strip out alloc info for a substantial
reduction in metadata size - around half, due to backpointers.
Alloc info will be regenerated on first read-write mount.
Remounting RW is disallowed for now, since we don't yet have
check_allocations running in RW mode.
XXX make scrub work (no repair)
XXX look at mount wall clock time/profile
XXX we also really don't want to be pinning btree roots in memory
anymore, since a lot of them aren't used
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Fixes "task out to lunch" warnings during recovery on large machines
with lots of dirty data in the journal.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
REQ_FUA means "skip the drive cache", and it can be used with reads to.
If there was a checksum error, we want to retry the whole read path, not
read it from cache again.
Suggested-by: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Add a sysfs attribute for checking whether read fua appears to behave
properly on a device.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Defer memory allocations only needed in RW mode until we actually go RW.
This is part of improved support for RO images.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
_init_early() is for initialization that cannot fail, and often must
happen for teardown partway through initialization to work.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
This provides a new option for single device mode - which allows
multiple filesystems with the same UUID to be mounted simultaneously.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
On single device filesystems, c->name contains the block device name,
not the UUID.
Initialize this earlier, so that single device mode can use it for
initializing sysfs/debugfs.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Hygeine, and fix build in userspace.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Add a better helper for check_snapshot_exists().
create_snapids() can't be changed to use this, unfortunately, because
the transaction that creates new snapshot will also be inserting other
keys (e.g. root inode) that reference that snapshot ID, and they expect
the snapshot table to already be updated.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
More stack usage improvements: instead of creating a new alloc_request
(currently on the stack), save/restore just the fields we need to reuse.
This is a bit tricky, because we're doing a normal alloc_foreground.c
allocation, which calls into ec.c to get a stripe, which then does more
normal allocations - some of the fields get reused, and used
differently.
So we have to save and restore them - but the stack usage improvements
will be well worth it.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Add a struct for common state for satisfying an on disk allocation,
instead of passing the same long list of items to every function.
This will help with stack usage, performance, and perhaps enable some
code cleanups.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
We're occasionally seeing the WARN_ON() for bump allocator usage
exceeding BTREE_TRANS_MEM_MAX; add some tracing so we can see what's
going on.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
This was achieved before by zero-ing out the source buffer and then
copying the bytes into the destination buffer. This can also be done with
memcpy_and_pad which will zero out only the destination buffer if its
size is bigger than the size of the source buffer. This is already used in
the same way in journal_transaction_name().
Moreover, zero-ing the source buffer was done twice, first in
__bch2_fs_log_msg() and then in bch2_trans_log_msg(). And this method
may also require allocating some extra memory for the source buffer.
In conclusion, using memcpy_and_pad is better even tough the result is
the same because it brings uniformity with what's already used in
journal_transaction_name, it avoids code duplication and reallocating
extra memory.
Signed-off-by: Roxana Nicolescu <nicolescu.roxana@protonmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Strncpy is now deprecated.
The buffer destination is not required to be NULL-terminated, but we also
want to zero out the rest of the buffer as it is already done in other
places.
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Roxana Nicolescu <nicolescu.roxana@protonmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Let's not move poisoned extents unnecessarily, since we can't guard
against introducing more bitrot.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Now, if an extent is poisoned we can move it even if there was a
checksum error. We'll have to give it a new checksum, but the poison bit
means that userspace will still see the appropriate error when they try
to read it.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Copygc needs to be able to move extents that have bitrotted. We don't
want to delete them - in the future we'll have an API for "read me the
data even if there's checksum errors", and in general we don't want to
delete anything unless the user asks us to.
That will require writing it with a new checksum, which means we can't
forget that there was a checksum error so we return the correct error to
userspace.
Rebalance also wants to skip bad extents; we can now use the poison flag
for that.
This is currently disabled by default, as we want read fua support so
that we can distinguish between transient and permanent errors from the
device. It may be enabled with the module parameter:
poison_extents_on_checksum_error
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
If the extent we're reading from changes, due to be being overwritten or
moved (possibly partially) - we need to reset bch_io_failures so that we
don't accidentally mark a new extent as poisoned prematurely.
This means we have to separately track (in the retry path) the extent we
previously read from.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Commit 3ba0240a8789 fixed a bug in the read retry path in __bch2_read(),
and changed bchfs_read() to match - to avoid a landmine if
bch2_read_extent() ever starts returning transaction restarts.
But that was incorrect, because bchfs_read() doesn't use a separate
stack allocated bvec_iter, it uses the one in the rbio being submitted.
Add a comment explaining the issue, and revert the buggy change.
Fixes: 3ba0240a8789 ("bcachefs: Fix silent short reads in data read retry path")
Reported-by: syzbot+2deb10b8dc9aae6fab67@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Prevent incorrect byte ordering for big-endian systems.
Signed-off-by: Gabriel Shahrouzi <gshahrouzi@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Replace u64 with __le64 to match the expected parameter type. Ensure consistency both in function calls and within the function itself.
Signed-off-by: Gabriel Shahrouzi <gshahrouzi@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
Remove backslash before format specifier. Ensure correct output.
Signed-off-by: Gabriel Shahrouzi <gshahrouzi@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix a nonsensical Kconfig combination
- Remove an unnecessary rseq-notification
* tag 'sched-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq: Eliminate useless task_work on execve
sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP
|
|
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.
Conversion was done with coccinelle plus manual fixups where necessary.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
|
git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- reconnect fixes: three for updating rsize/wsize and an SMB1 reconnect
fix
- RFC1001 fixes: fixing connections to nonstandard ports, and negprot
retries
- fix mfsymlinks to old servers
- make mapping of open flags for SMB1 more accurate
- permission fixes: adding retry on open for write, and one for stat to
workaround unexpected access denied
- add two new xattrs, one for retrieving SACL and one for retrieving
owner (without having to retrieve the whole ACL)
- fix mount parm validation for echo_interval
- minor cleanup (including removing now unneeded cifs_truncate_page)
* tag '6.15-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal version number
cifs: Implement is_network_name_deleted for SMB1
cifs: Remove cifs_truncate_page() as it should be superfluous
cifs: Do not add FILE_READ_ATTRIBUTES when using GENERIC_READ/EXECUTE/ALL
cifs: Improve SMB2+ stat() to work also without FILE_READ_ATTRIBUTES
cifs: Add fallback for SMB2 CREATE without FILE_READ_ATTRIBUTES
cifs: Fix querying and creating MF symlinks over SMB1
cifs: Fix access_flags_to_smbopen_mode
cifs: Fix negotiate retry functionality
cifs: Improve handling of NetBIOS packets
cifs: Allow to disable or force initialization of NetBIOS session
cifs: Add a new xattr system.smb3_ntsd_owner for getting or setting owner
cifs: Add a new xattr system.smb3_ntsd_sacl for getting or setting SACLs
smb: client: Update IO sizes after reconnection
smb: client: Store original IO parameters and prevent zero IO sizes
smb:client: smb: client: Add reverse mapping from tcon to superblocks
cifs: remove unreachable code in cifs_get_tcp_session()
cifs: fix integer overflow in match_server()
|
|
Pull smb server fixes from Steve French:
"Four ksmbd SMB3 server fixes, all also for stable"
* tag 'v6.15rc-part2-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: fix null pointer dereference in alloc_preauth_hash()
ksmbd: validate zero num_subauth before sub_auth is accessed
ksmbd: fix overflow in dacloffset bounds check
ksmbd: fix session use-after-free in multichannel connection
|
|
Don't use a scoped guard that only protects the next statement.
Use a regular guard to make sure that the namespace semaphore is held
across the whole function.
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reported-by: Leon Romanovsky <leon@kernel.org>
Link: https://lore.kernel.org/all/20250401170715.GA112019@unreal/
Fixes: db04662e2f4f ("fs: allow detached mounts in clone_private_mount()")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Pull more bcachefs updates from Kent Overstreet:
"More notable fixes:
- Fix for striping behaviour on tiering filesystems where replicas
exceeds durability on destination target
- Fix a race in device removal where deleting alloc info races with
the discard worker
- Some small stack usage improvements: this is just enough for KMSAN
builds to not blow the stack, more is queued up for 6.16"
* tag 'bcachefs-2025-04-03' of git://evilpiepirate.org/bcachefs:
bcachefs: Fix "journal stuck" during recovery
bcachefs: backpointer_get_key: check for null from peek_slot()
bcachefs: Fix null ptr deref in invalidate_one_bucket()
bcachefs: Fix check_snapshot_exists() restart handling
bcachefs: use nonblocking variant of print_string_as_lines in error path
bcachefs: Fix scheduling while atomic from logging changes
bcachefs: Add error handling for zlib_deflateInit2()
bcachefs: add missing selection of XARRAY_MULTI
bcachefs: bch_dev_usage_full
bcachefs: Kill btree_iter.trans
bcachefs: do_trace_key_cache_fill()
bcachefs: Split up bch_dev.io_ref
bcachefs: fix ref leak in btree_node_read_all_replicas
bcachefs: Fix null ptr deref in bch2_write_endio()
bcachefs: Fix field spanning write warning
bcachefs: Fix striping behaviour
|
|
Pull 9p updates from Dominique Martinet:
- fix handling of bogus (negative/too long) replies
- fix crash on mkdir with ACLs (... looks like nobody is using ACLs
with semi-recent kernels...)
- ipv6 support for trans=tcp
- minor concurrency fix to make syzbot happy
- minor cleanup
* tag '9p-for-6.15-rc1' of https://github.com/martinetd/linux:
docs: fs/9p: Add missing "not" in cache documentation
9p: Use hashtable.h for hash_errmap
Documentation/fs/9p: fix broken link
9p/trans_fd: mark concurrent read and writes to p9_conn->err
9p/net: return error on bogus (longer than requested) replies
9p/net: fix improper handling of bogus negative read/write replies
fs/9p: fix NULL pointer dereference on mkdir
net/9p/fd: support ipv6 for trans=tcp
|
