-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZhu2kwAKCRBZ7Krx/gZQ
62gzAP9eeADy6rQkzgWJ8d8sKzGfmd0nup9WlCOxZSR0XojTXwEAnue47dn7PlMx
wQY0joZ0V5FO8PNTEbWc2P/dSQrANgc=
=MshW
-----END PGP SIGNATURE-----
Merge tag 'pull-sysfs-annotation-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull sysfs fix from Al Viro:
"Get rid of lockdep false positives around sysfs/overlayfs
syzbot has uncovered a class of lockdep false positives for setups
with sysfs being one of the backing layers in overlayfs. The root
cause is that of->mutex allocated when opening a sysfs file read-only
(which overlayfs might do) is confused with of->mutex of a file opened
writable (held in write to sysfs file, which overlayfs won't do).
Assigning them separate lockdep classes fixes that bunch and it's
obviously safe"
* tag 'pull-sysfs-annotation-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
kernfs: annotate different lockdep class for of->mutex of writable files
The writable file /sys/power/resume may call vfs lookup helpers for
arbitrary paths and readonly files can be read by overlayfs from vfs
helpers when sysfs is a lower layer of overalyfs.
To avoid a lockdep warning of circular dependency between overlayfs
inode lock and kernfs of->mutex, use a different lockdep class for
writable and readonly kernfs files.
Reported-by: syzbot+9a5b0ced8b1bfb238b56@syzkaller.appspotmail.com
Fixes: 0fedefd4c4 ("kernfs: sysfs: support custom llseek method for sysfs entries")
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
- Suppress a coccicheck warning using str_plural().
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCZhnikwAKCRDdoc3SxdoY
ditrAP9s/r36Dl4c8BZxpoUyCmf44ww6oTMxGzjwi/4gA8Ry2gEA766WGVsDyJf2
G0qjl7+bVneaOG6Xayzce69OjvZGZws=
=U6kP
-----END PGP SIGNATURE-----
Merge tag 'zonefs-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
- Suppress a coccicheck warning using str_plural()
* tag 'zonefs-6.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: Use str_plural() to fix Coccinelle warning
-----BEGIN PGP SIGNATURE-----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=AHB9
-----END PGP SIGNATURE-----
Merge tag 'v6.9-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- fix for oops in cifs_get_fattr of deleted files
- fix for the remote open counter going negative in some directory
lease cases
- fix for mkfifo to instantiate dentry to avoid possible crash
- important fix to allow handling key rotation for mount and remount
(ie cases that are becoming more common when password that was used
for the mount will expire soon but will be replaced by new password)
* tag 'v6.9-rc3-SMB3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: fix broken reconnect when password changing on the server by allowing password rotation
smb: client: instantiate when creating SFU files
smb3: fix Open files on server counter going negative
smb: client: fix NULL ptr deref in cifs_mark_open_handles_for_deleted_file()
-----BEGIN PGP SIGNATURE-----
iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmYZXkYTHGlkcnlvbW92
QGdtYWlsLmNvbQAKCRBKf944AhHziyLNCACkJv5GjDeHC22P+UB6re3gO39wdFsL
BvHmhyebz5iidjS1l6pC/RcLOmB+OwekOiDfFvkwu0E+3d5dZTBInUV4BWzbJVLR
Hkjd+oCEThV+f58n2Ol/r6lBGIFCgJpgtW02DQurM8wHTLm/vqxpj2GsvJCRXNr6
lfqWVvZBteEmqxHUGNWldOQh2jNPGyvOpDRCQTzdjEfUAijoc8arLyuwbxl9tFdA
qVtCZk+Jv0Lz9uQUSsI7aM+SEXUgGW3pZXJL9h9PPjC9d811GCwQnUcL4hNE2B3X
Nf5Qzo9jV2GKJh8+kHui0dmpt0dMQfFZ2YaeJDZl8c8dE2uqBL+zMO79
=mvie
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-6.9-rc4' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Two CephFS fixes marked for stable and a MAINTAINERS update"
* tag 'ceph-for-6.9-rc4' of https://github.com/ceph/ceph-client:
MAINTAINERS: remove myself as a Reviewer for Ceph
ceph: switch to use cap_delay_lock for the unlink delay list
ceph: redirty page before returning AOP_WRITEPAGE_ACTIVATE
- Fix the buffer_percent accounting as it is dependent on three variables:
1) pages_read - number of subbuffers read
2) pages_lost - number of subbuffers lost due to overwrite
3) pages_touched - number of pages that a writer entered
These three counters only increment, and to know how many active pages
there are on the buffer at any given time, the pages_read and
pages_lost are subtracted from pages_touched. But the pages touched
was incremented whenever any writer went to the next subbuffer even
if it wasn't the only one, so it was incremented more than it should
be causing the counter for how many subbuffers currently have content
incorrect, which caused the buffer_percent that holds waiters until
the ring buffer is filled to a given percentage to wake up early.
- Fix warning of unused functions when PERF_EVENTS is not configured in
- Replace bad tab with space in Kconfig for FTRACE_RECORD_RECURSION_SIZE
- Fix to some kerneldoc function comments in eventfs code.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZhk+khQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qvs0AP98c226UFU6Dha4wvgSulC/wKVvHN3X
jeclMTdn8RGs2gD/b9OULKNv1//6fP16ZRun7ntRQkotVhlNhf9Ee0smiwU=
=UYrk
-----END PGP SIGNATURE-----
Merge tag 'trace-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix the buffer_percent accounting as it is dependent on three
variables:
1) pages_read - number of subbuffers read
2) pages_lost - number of subbuffers lost due to overwrite
3) pages_touched - number of pages that a writer entered
These three counters only increment, and to know how many active
pages there are on the buffer at any given time, the pages_read and
pages_lost are subtracted from pages_touched.
But the pages touched was incremented whenever any writer went to the
next subbuffer even if it wasn't the only one, so it was incremented
more than it should be causing the counter for how many subbuffers
currently have content incorrect, which caused the buffer_percent
that holds waiters until the ring buffer is filled to a given
percentage to wake up early.
- Fix warning of unused functions when PERF_EVENTS is not configured in
- Replace bad tab with space in Kconfig for FTRACE_RECORD_RECURSION_SIZE
- Fix to some kerneldoc function comments in eventfs code.
* tag 'trace-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Only update pages_touched when a new page is touched
tracing: hide unused ftrace_event_id_fops
tracing: Fix FTRACE_RECORD_RECURSION_SIZE Kconfig entry
eventfs: Fix kernel-doc comments to functions
There are various use cases that are becoming more common in which password
changes are scheduled on a server(s) periodically but the clients connected
to this server need to stay connected (even in the face of brief network
reconnects) due to mounts which can not be easily unmounted and mounted at
will, and servers that do password rotation do not always have the ability
to tell the clients exactly when to the new password will be effective,
so add support for an alt password ("password2=") on mount (and also
remount) so that we can anticipate the upcoming change to the server
without risking breaking existing mounts.
An alternative would have been to use the kernel keyring for this but the
processes doing the reconnect do not have access to the keyring but do
have access to the ses structure.
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
We were decrementing the count of open files on server twice
for the case where we were closing cached directories.
Fixes: 8e843bf38f ("cifs: return a single-use cfid if we did not get a lease")
Cc: stable@vger.kernel.org
Acked-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
The same list item will be used in both cap_delay_list and
cap_unlink_delay_list, so it's buggy to use two different locks
to protect them.
Cc: stable@vger.kernel.org
Fixes: dbc347ef7f ("ceph: add ceph_cap_unlink_work to fire check_caps() immediately")
Link: https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/AODC76VXRAMXKLFDCTK4TKFDDPWUSCN5
Reported-by: Marc Ruhmann <ruhmann@luis.uni-hannover.de>
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Tested-by: Marc Ruhmann <ruhmann@luis.uni-hannover.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Notable user impacting bugs
- On multi device filesystems, recovery was looping in
btree_trans_too_many_iters(). This checks if a transaction has touched
too many btree paths (because of iteration over many keys), and isuses
a restart to drop unneeded paths. But it's now possible for some paths
to exceed the previous limit without iteration in the interior btree
update path, since the transaction commit will do alloc updates for
every old and new btree node, and during journal replay we don't use
the btree write buffer for locking reasons and thus those updates use
btree paths when they wouldn't normally.
- Fix a corner case in rebalance when moving extents on a durability=0
device. This wouldn't be hit when a device was formatted with
durability=0 since in that case we'll only use it as a write through
cache (only cached extents will live on it), but durability can now be
changed on an existing device.
- bch2_get_acl() could rarely forget to handle a transaction restart;
this manifested as the occasional missing acl that came back after
dropping caches.
- Fix a major performance regression on high iops multithreaded write
workloads (only since 6.9-rc1); a previous fix for a deadlock in the
interior btree update path to check the journal watermark introduced a
dependency on the state of btree write buffer flushing that we didn't
want.
- Assorted other repair paths and recovery fixes.
-----BEGIN PGP SIGNATURE-----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=BQC0
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-04-10' of https://evilpiepirate.org/git/bcachefs
Pull more bcachefs fixes from Kent Overstreet:
"Notable user impacting bugs
- On multi device filesystems, recovery was looping in
btree_trans_too_many_iters(). This checks if a transaction has
touched too many btree paths (because of iteration over many keys),
and isuses a restart to drop unneeded paths.
But it's now possible for some paths to exceed the previous limit
without iteration in the interior btree update path, since the
transaction commit will do alloc updates for every old and new
btree node, and during journal replay we don't use the btree write
buffer for locking reasons and thus those updates use btree paths
when they wouldn't normally.
- Fix a corner case in rebalance when moving extents on a
durability=0 device. This wouldn't be hit when a device was
formatted with durability=0 since in that case we'll only use it as
a write through cache (only cached extents will live on it), but
durability can now be changed on an existing device.
- bch2_get_acl() could rarely forget to handle a transaction restart;
this manifested as the occasional missing acl that came back after
dropping caches.
- Fix a major performance regression on high iops multithreaded write
workloads (only since 6.9-rc1); a previous fix for a deadlock in
the interior btree update path to check the journal watermark
introduced a dependency on the state of btree write buffer flushing
that we didn't want.
- Assorted other repair paths and recovery fixes"
* tag 'bcachefs-2024-04-10' of https://evilpiepirate.org/git/bcachefs: (25 commits)
bcachefs: Fix __bch2_btree_and_journal_iter_init_node_iter()
bcachefs: Kill read lock dropping in bch2_btree_node_lock_write_nofail()
bcachefs: Fix a race in btree_update_nodes_written()
bcachefs: btree_node_scan: Respect member.data_allowed
bcachefs: Don't scan for btree nodes when we can reconstruct
bcachefs: Fix check_topology() when using node scan
bcachefs: fix eytzinger0_find_gt()
bcachefs: fix bch2_get_acl() transaction restart handling
bcachefs: fix the count of nr_freed_pcpu after changing bc->freed_nonpcpu list
bcachefs: Fix gap buffer bug in bch2_journal_key_insert_take()
bcachefs: Rename struct field swap to prevent macro naming collision
MAINTAINERS: Add entry for bcachefs documentation
Documentation: filesystems: Add bcachefs toctree
bcachefs: JOURNAL_SPACE_LOW
bcachefs: Disable errors=panic for BCH_IOCTL_FSCK_OFFLINE
bcachefs: Fix BCH_IOCTL_FSCK_OFFLINE for encrypted filesystems
bcachefs: fix rand_delete unit test
bcachefs: fix ! vs ~ typo in __clear_bit_le64()
bcachefs: Fix rebalance from durability=0 device
bcachefs: Print shutdown journal sequence number
...
The page has been marked clean before writepage is called. If we don't
redirty it before postponing the write, it might never get written.
Cc: stable@vger.kernel.org
Fixes: 503d4fa6ee ("ceph: remove reliance on bdi congestion")
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
- fs/proc: Fix to not show original kernel cmdline more than twice on
/proc/bootconfig.
- fs/proc: Fix to show the original cmdline only if the bootconfig
modifies it.
-----BEGIN PGP SIGNATURE-----
iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmYWrVMbHG1hc2FtaS5o
aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bwxMH/0c/y0wimIlEgqhl27j1
+SCIA9SBF3oZ7P9Jajs/tZZf8jNwOsuXFBQbwqgAkxdKbolaLkhbLOBqKg8LVodH
fzpDh+w0BxYVnPLTQe1dpOrygEcfWEM7RdwskwDYyNDDuTZecYkbmHF3mlYnyj5h
/aPSBcfqHqjM8ltUxjus2B2kMcS/Khun2HVyhQRpVeiRMZPtLpdh9RyNhAwwlfGV
9WLH5JTg45EHN5V9GL5RzX86HIQ82ZfWtqTKdrU7u7ahph3NN6enkD1+MI2vMqjG
t8F/GsFeFdgXfVE2B4HZPWdA07PUeh416iDeajZBY8QlyK3rt/vATkKcGyyYdVJK
EGI=
=N4qD
-----END PGP SIGNATURE-----
Merge tag 'bootconfig-fixes-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig fixes from Masami Hiramatsu:
- show the original cmdline only once, and only if it was modeified by
bootconfig
* tag 'bootconfig-fixes-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
fs/proc: Skip bootloader comment if no embedded kernel parameters
fs/proc: remove redundant comments from /proc/bootconfig
We weren't respecting trans->journal_replay_not_finished - we shouldn't
be searching the journal keys unless we have a ref on them.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
dropping read locks in bch2_btree_node_lock_write_nofail() dates from
before we had the cycle detector; we can now tell the cycle detector
directly when taking a lock may not fail because we can't handle
transaction restarts.
This is needed for adding should_be_locked asserts.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
One btree update might have terminated in a node update, and then while
it is in flight another btree update might free that original node.
This race has to be handled in btree_update_nodes_written() - we were
missing a READ_ONCE().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Fixes the following Coccinelle/coccicheck warning reported by
string_choices.cocci:
opportunity for str_plural(zgroup->g_nr_zones)
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
If the "bootconfig" kernel command-line argument was specified or if
the kernel was built with CONFIG_BOOT_CONFIG_FORCE, but if there are
no embedded kernel parameter, omit the "# Parameters from bootloader:"
comment from the /proc/bootconfig file. This will cause automation
to fall back to the /proc/cmdline file, which will be identical to the
comment in this no-embedded-kernel-parameters case.
Link: https://lore.kernel.org/all/20240409044358.1156477-2-paulmck@kernel.org/
Fixes: 8b8ce6c75430 ("fs/proc: remove redundant comments from /proc/bootconfig")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: stable@vger.kernel.org
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
- fix return types: promoting from unsigned to ssize_t does not do what
we want here, and was pointless since the rest of the eytzinger code
is u32
- nr, not size
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
-----BEGIN PGP SIGNATURE-----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=XtPw
-----END PGP SIGNATURE-----
Merge tag 'for-6.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Several fixes to qgroups that have been recently identified by test
generic/475:
- fix prealloc reserve leak in subvolume operations
- various other fixes in reservation setup, conversion or cleanup"
* tag 'for-6.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: always clear PERTRANS metadata during commit
btrfs: make btrfs_clear_delalloc_extent() free delalloc reserve
btrfs: qgroup: convert PREALLOC to PERTRANS after record_root_in_trans
btrfs: record delayed inode root in transaction
btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations
btrfs: qgroup: correctly model root qgroup rsv in convert
bch2_acl_from_disk() uses allocate_dropping_locks, and can thus return
a transaction restart - this wasn't handled.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
When allocating bkey_cached from bc->freed_pcpu list, it missed
decreasing the count of nr_freed_pcpu which would cause the mismatch
between the value of nr_freed_pcpu and the list items. This problem
also exists in moving new bkey_cached to bc->freed_pcpu list.
If these happened, the bug info may appear in
bch2_fs_btree_key_cache_exit by the follow code:
BUG_ON(list_count_nodes(&bc->freed_pcpu) != bc->nr_freed_pcpu);
BUG_ON(list_count_nodes(&bc->freed_nonpcpu) != bc->nr_freed_nonpcpu);
Fixes: c65c13f0ea ("bcachefs: Run btree key cache shrinker less aggressively")
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Multiple bug fixes for journal iters:
- When the journal keys gap buffer is resized, we have to adjust the
iterators for moving the gap to the end
- We don't want to rewind iterators to point to the key we just
inserted if it's not for the correct btree/level
Also, add some new assertions.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The struct field swap can collide with the swap() macro defined in
linux/minmax.h. Rename the struct field to prevent such collisions.
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
"bcachefs; Fix deadlock in bch2_btree_update_start()" was a significant
performance regression (nearly 50%) on multithreaded random writes with
fio.
The reason is that the journal watermark checks multiple things,
including the state of the btree write buffer, and on multithreaded
update heavy workloads we're bottleneked on write buffer flushing - we
don't want kicknig off btree updates to depend on the state of the write
buffer.
This isn't strictly correct; the interior btree update path does do
write buffer updates, but it's a tiny fraction of total accounting
updates and we're more concerned with space in the journal itself.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
BCH_IOCTL_FSCK_OFFLINE allows the userspace fsck tool to use the kernel
implementation of fsck - primarily when the kernel version is a better
version match.
It should look and act exactly like the normal userspace fsck that the
user expected to be invoking, so errors should never result in a kernel
panic.
We may want to consider further restricting errors=panic - it's only
intended for debugging in controlled test environments, it should have
no purpose it normal usage.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
To open an encrypted filesystem, we use request_key() to get the
encryption key from the user's keyring - but request_key() needs to
happen in the context of the process that invoked the ioctl.
This easily fixed by using bch2_fs_open() in nostart mode.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
- Address a slow memory leak with RPC-over-TCP
- Prevent another NFS4ERR_DELAY loop during CREATE_SESSION
-----BEGIN PGP SIGNATURE-----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=dGcu
-----END PGP SIGNATURE-----
Merge tag 'nfsd-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Address a slow memory leak with RPC-over-TCP
- Prevent another NFS4ERR_DELAY loop during CREATE_SESSION
* tag 'nfsd-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
nfsd: hold a lighter-weight client reference over CB_RECALL_ANY
SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP
* Allow creating new links to special files which were not associated with a
project quota.
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQQjMC4mbgVeU7MxEIYH7y4RirJu9AUCZgwRrQAKCRAH7y4RirJu
9OtyAP4m8cXLi+fjRslGLNhQQXzZHIcpaPiWZ9Ec41Y3uzZNBQD/doS6P4aGcH0m
taYQ+nyzuavEZiOEg+d65OoUIrDZzg4=
=bgjU
-----END PGP SIGNATURE-----
Merge tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Chandan Babu:
- Allow creating new links to special files which were not associated
with a project quota
* tag 'xfs-6.9-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: allow cross-linking special files without project quota
-----BEGIN PGP SIGNATURE-----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=eZXs
-----END PGP SIGNATURE-----
Merge tag '6.9-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- fix to retry close to avoid potential handle leaks when server
returns EBUSY
- DFS fixes including a fix for potential use after free
- fscache fix
- minor strncpy cleanup
- reconnect race fix
- deal with various possible UAF race conditions tearing sessions down
* tag '6.9-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect()
smb: client: fix potential UAF in smb2_is_network_name_deleted()
smb: client: fix potential UAF in is_valid_oplock_break()
smb: client: fix potential UAF in smb2_is_valid_oplock_break()
smb: client: fix potential UAF in smb2_is_valid_lease_break()
smb: client: fix potential UAF in cifs_stats_proc_show()
smb: client: fix potential UAF in cifs_stats_proc_write()
smb: client: fix potential UAF in cifs_dump_full_key()
smb: client: fix potential UAF in cifs_debug_files_proc_show()
smb3: retrying on failed server close
smb: client: serialise cifs_construct_tcon() with cifs_mount_mutex
smb: client: handle DFS tcons in cifs_construct_tcon()
smb: client: refresh referral without acquiring refpath_lock
smb: client: guarantee refcounted children from parent session
cifs: Fix caching to try to do open O_WRONLY as rdwr on server
smb: client: fix UAF in smb2_reconnect_server()
smb: client: replace deprecated strncpy with strscpy
The ! was obviously intended to be ~. As it is, this function does
the equivalent to: "addr[bit / 64] = 0;".
Fixes: 27fcec6c27 ("bcachefs: Clear recovery_passes_required as they complete without errors")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Currently the CB_RECALL_ANY job takes a cl_rpc_users reference to the
client. While a callback job is technically an RPC that counter is
really more for client-driven RPCs, and this has the effect of
preventing the client from being unhashed until the callback completes.
If nfsd decides to send a CB_RECALL_ANY just as the client reboots, we
can end up in a situation where the callback can't complete on the (now
dead) callback channel, but the new client can't connect because the old
client can't be unhashed. This usually manifests as a NFS4ERR_DELAY
return on the CREATE_SESSION operation.
The job is only holding a reference to the client so it can clear a flag
after the RPC completes. Fix this by having CB_RECALL_ANY instead hold a
reference to the cl_nfsdfs.cl_ref. Typically we only take that sort of
reference when dealing with the nfsdfs info files, but it should work
appropriately here to ensure that the nfs4_client doesn't disappear.
Fixes: 44df6f439a ("NFSD: add delegation reaper to react to low memory condition")
Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
-----BEGIN PGP SIGNATURE-----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=l/a7
-----END PGP SIGNATURE-----
Merge tag '6.9-rc2-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
"Three fixes, all also for stable:
- encryption fix
- memory overrun fix
- oplock break fix"
* tag '6.9-rc2-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: do not set SMB2_GLOBAL_CAP_ENCRYPTION for SMB 3.1.1
ksmbd: validate payload size in ipc response
ksmbd: don't send oplock break if rename fails
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZg/C8wAKCRCRxhvAZXjc
oljxAQCneq62ginESgeQLw88fzSBTV4C50xXUA+Qz18AEgA/fgD+J3DlWquEHhMM
tJmfs3aUn9w7+wDpukcsLjJfJEiSYA8=
=f2Z6
-----END PGP SIGNATURE-----
Merge tag 'vfs-6.9-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"This contains a few small fixes. This comes with some delay because I
wanted to wait on people running their reproducers and the Easter
Holidays meant that those replies came in a little later than usual:
- Fix handling of preventing writes to mounted block devices.
Since last kernel we allow to prevent writing to mounted block
devices provided CONFIG_BLK_DEV_WRITE_MOUNTED isn't set and the
block device is opened with restricted writes. When we switched to
opening block devices as files we altered the mechanism by which we
recognize when a block device has been opened with write
restrictions.
The detection logic assumed that only read-write mounted
filesystems would apply write restrictions to their block devices
from other openers. That of course is not true since it also makes
sense to apply write restrictions for filesystems that are
read-only.
Fix the detection logic using an FMODE_* bit. We still have a few
left since we freed up a couple a while ago. I also picked up a
patch to free up four additional FMODE_* bits scheduled for the
next merge window.
- Fix counting the number of writers to a block device. This just
changes the logic to be consistent.
- Fix a bug in aio causing a NULL pointer derefernce after we
implemented batched processing in aio.
- Finally, add the changes we discussed that allows to yield block
devices early even though file closing itself is deferred.
This also allows us to remove two holder operations to get and
release the holder to align lifetime of file and holder of the
block device"
* tag 'vfs-6.9-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
aio: Fix null ptr deref in aio_complete() wakeup
fs,block: yield devices early
block: count BLK_OPEN_RESTRICT_WRITES openers
block: handle BLK_OPEN_RESTRICT_WRITES correctly
A couple more small fixes, and new repair code.
We can now automatically recover from arbitrary corrupted interior btree
nodes by scanning, and we can reconstruct metadata as needed to bring a
filesystem back into a working, consistent, read-write state and
preserve access to whatevver wasn't corrupted.
Meaning - you can blow away all metadata except for extents and dirents
leaf nodes, and repair will reconstruct everything else and give you
your data, and under the correct paths. If inodes are missing i_size
will be slightly off and permissions/ownership/timestamps will be gone,
and we do still need the snapshots btree if snapshots were in use - in
the future we'll be able to guess the snapshot tree structure in some
situations.
IOW - aside from shaking out remaining bugs (fuzz testing is still
coming), repair code should be complete and if repair ever doesn't work
that's the highest priority bug that I want to know about immediately.
This patchset was kindly tested by a user from India who accidentally
wiped one drive out of a three drive filesystem with no replication on
the family computer - it took a couple weeks but we got everything
important back.
-----BEGIN PGP SIGNATURE-----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=7/rR
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-04-03' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs repair code from Kent Overstreet:
"A couple more small fixes, and new repair code.
We can now automatically recover from arbitrary corrupted interior
btree nodes by scanning, and we can reconstruct metadata as needed to
bring a filesystem back into a working, consistent, read-write state
and preserve access to whatevver wasn't corrupted.
Meaning - you can blow away all metadata except for extents and
dirents leaf nodes, and repair will reconstruct everything else and
give you your data, and under the correct paths. If inodes are missing
i_size will be slightly off and permissions/ownership/timestamps will
be gone, and we do still need the snapshots btree if snapshots were in
use - in the future we'll be able to guess the snapshot tree structure
in some situations.
IOW - aside from shaking out remaining bugs (fuzz testing is still
coming), repair code should be complete and if repair ever doesn't
work that's the highest priority bug that I want to know about
immediately.
This patchset was kindly tested by a user from India who accidentally
wiped one drive out of a three drive filesystem with no replication on
the family computer - it took a couple weeks but we got everything
important back"
* tag 'bcachefs-2024-04-03' of https://evilpiepirate.org/git/bcachefs:
bcachefs: reconstruct_inode()
bcachefs: Subvolume reconstruction
bcachefs: Check for extents that point to same space
bcachefs: Reconstruct missing snapshot nodes
bcachefs: Flag btrees with missing data
bcachefs: Topology repair now uses nodes found by scanning to fill holes
bcachefs: Repair pass for scanning for btree nodes
bcachefs: Don't skip fake btree roots in fsck
bcachefs: bch2_btree_root_alloc() -> bch2_btree_root_alloc_fake()
bcachefs: Etyzinger cleanups
bcachefs: bch2_shoot_down_journal_keys()
bcachefs: Clear recovery_passes_required as they complete without errors
bcachefs: ratelimit informational fsck errors
bcachefs: Check for bad needs_discard before doing discard
bcachefs: Improve bch2_btree_update_to_text()
mean_and_variance: Drop always failing tests
bcachefs: fix nocow lock deadlock
bcachefs: BCH_WATERMARK_interior_updates
bcachefs: Fix btree node reserve
sysfs is limited to PAGE_SIZE, and when we're debugging strange
deadlocks/priority inversions we need to see the full list.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Snapshot table accesses generally need to be checking for invalid
snapshot ID now, fix one that was missed.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Linus Torvalds