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6124 commits
Author | SHA1 | Message | Date | |
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bc893f744e |
block-6.7-2023-11-23
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmVfrJIQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpqKID/oCNxih4ErRdCYJOZA+tR0YkuWJBKmF9KSe w94GnsxpCdPFMo+Lr2J3WoHsxH/xTFiT5BcLMTKb5Rju7zSIvf40xZxmizwhnU3p aA1WhWjo2Qu20p35wbKy23frSOZIZAj3+PXUxOG9hso6fY96JVpDToBQ4I9k5OG1 1KHXorlktQgDWk1XryI0z9F73Q3Ja3Bt2G4aXRAGwnTyvvIHJd+jm8ksjaEKKkmQ YXv1+ZJXhHkaeSfcwYcOFDffx+O1dooWnHjcKbgyXu0UQq0kxxIwBkF5C9ltZVVT TW2WusplldV4EU/Z3ck7E03Kbmk81iTN9yyh7wAr0TmkEEOdx5Mv/PtqUHme0A4Z PJEBR7g6AVnERttGk4H2MOiPBsMOKBFT2UIVSqUTMsij2a5uaKjGvBXXDELdf4g9 45QKuP1QflEImtKm6HtELA9gWuAF1rGOrH7PMLLPhmQck643cgVIcw6Tz3eyaJMe cBuvTsejkbQVeLSiX1mdvZk0gxuowCP/A8+CXyODdhl+H/mrDnMgR6HCV07VOy6F lVXeXjQaqwd9fdQ2kxfjbstNkjE3Z/NRDGJ+y4oNFNj6YmLoVHivBAXDHhHIVpXb u/F+IUm7I2M8G3DfqS0VOABauqzbDxe7c8j10OzJeDskd06t1prt6IY/qV4uhImM G6XNMzeHjw== =EShg -----END PGP SIGNATURE----- Merge tag 'block-6.7-2023-11-23' of git://git.kernel.dk/linux Pull block fixes from Jens Axboe: "A bit bigger than usual at this time, but nothing really earth shattering: - NVMe pull request via Keith: - TCP TLS fixes (Hannes) - Authentifaction fixes (Mark, Hannes) - Properly terminate target names (Christoph) - MD pull request via Song, fixing a raid5 corruption issue - Disentanglement of the dependency mess in nvme introduced with the tls additions. Now it should actually build on all configs (Arnd) - Series of bcache fixes (Coly) - Removal of a dead helper (Damien) - s390 dasd fix (Muhammad, Jan) - lockdep blk-cgroup fixes (Ming)" * tag 'block-6.7-2023-11-23' of git://git.kernel.dk/linux: (33 commits) nvme: tcp: fix compile-time checks for TLS mode nvme: target: fix Kconfig select statements nvme: target: fix nvme_keyring_id() references nvme: move nvme_stop_keep_alive() back to original position nbd: pass nbd_sock to nbd_read_reply() instead of index s390/dasd: protect device queue against concurrent access s390/dasd: resolve spelling mistake block/null_blk: Fix double blk_mq_start_request() warning nvmet-tcp: always initialize tls_handshake_tmo_work nvmet: nul-terminate the NQNs passed in the connect command nvme: blank out authentication fabrics options if not configured nvme: catch errors from nvme_configure_metadata() nvme-tcp: only evaluate 'tls' option if TLS is selected nvme-auth: set explanation code for failure2 msgs nvme-auth: unlock mutex in one place only block: Remove blk_set_runtime_active() nbd: fix null-ptr-dereference while accessing 'nbd->config' nbd: factor out a helper to get nbd_config without holding 'config_lock' nbd: fold nbd config initialization into nbd_alloc_config() bcache: avoid NULL checking to c->root in run_cache_set() ... |
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db46cd1e04 |
s390/dasd: protect device queue against concurrent access
In dasd_profile_start() the amount of requests on the device queue are
counted. The access to the device queue is unprotected against
concurrent access. With a lot of parallel I/O, especially with alias
devices enabled, the device queue can change while dasd_profile_start()
is accessing the queue. In the worst case this leads to a kernel panic
due to incorrect pointer accesses.
Fix this by taking the device lock before accessing the queue and
counting the requests. Additionally the check for a valid profile data
pointer can be done earlier to avoid unnecessary locking in a hot path.
Cc: <stable@vger.kernel.org>
Fixes:
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5029c5e4f2 |
s390/dasd: resolve spelling mistake
resolve typing mistake from pimary to primary Signed-off-by: Muhammad Muzammil <m.muzzammilashraf@gmail.com> Link: https://lore.kernel.org/r/20231010043140.28416-1-m.muzzammilashraf@gmail.com Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://lore.kernel.org/r/20231025132437.1223363-2-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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d565fa4300 |
s390/ism: ism driver implies smc protocol
Since commit |
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89cdf9d556 |
Including fixes from netfilter and bpf.
Current release - regressions: - sched: fix SKB_NOT_DROPPED_YET splat under debug config Current release - new code bugs: - tcp: fix usec timestamps with TCP fastopen - tcp_sigpool: fix some off by one bugs - tcp: fix possible out-of-bounds reads in tcp_hash_fail() - tcp: fix SYN option room calculation for TCP-AO - bpf: fix compilation error without CGROUPS - ptp: - ptp_read() should not release queue - fix tsevqs corruption Previous releases - regressions: - llc: verify mac len before reading mac header Previous releases - always broken: - bpf: - fix check_stack_write_fixed_off() to correctly spill imm - fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END - check map->usercnt after timer->timer is assigned - dsa: lan9303: consequently nested-lock physical MDIO - dccp/tcp: call security_inet_conn_request() after setting IP addr - tg3: fix the TX ring stall due to incorrect full ring handling - phylink: initialize carrier state at creation - ice: fix direction of VF rules in switchdev mode Misc: - fill in a bunch of missing MODULE_DESCRIPTION()s, more to come Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmVNRnAACgkQMUZtbf5S IrsYaA/+IUoYi96/oLtvvrET6HIbXeMaLKef0UlytEicQKy8h5EWlhcTZPhQEY0g dtaKOemQsO0dQTma4eQBiBDHeCeSkitgD9p7fh0i+//QFYWSFqHrBiF2mlToc/ZQ T1p4BlVL7D2Xsr1Lki93zk+EhFGEy2KroYgrWbZc9TWE5ap9PtSVF9eqeHAVCmZ7 ocre/eo4pqUM9rAHIAyhoL+0xtVQ59dBevbJC0qYcmflhafr82Gtdveo6pBBKuYm GhwbRrAXER3Neav9c6NHqat4zsMwGpC27SiN9dYWm6dlkeS9U9t2PUu71OkJGVfw VaSE+utkC/WmzGbuiUIjqQLBrRe372ItHCr78BfSRMshS+RBTHtoK7njeH8Iv67E RsMeCyVNj9dtGlOQG5JAv8IoCQ1WbMw9B36Yzw3ip/MmDX/ntXz7Dcr4ZMZ6VURS CHhHFZPnmMykMXkT6SIlxeAg2r8ELtESzkvLimdTVFPAlk3cPkibKJbh3F/tEqXS PDb3y0uoEgRQBAsWXXx9FQEvv9rTL6YrzbMhmJBIIEoNxppQYQ7FZBJX9utAVp5B 1GdyqhR6IRTaKb9cMRj/K1xPwm2KgCw9xj9pjKdAA7QUMslXbFp8blv1rIkFGshg hiNXmPcI8wo0j+0lZYktEcIERL5y6c8BgK2NnPU6RULua96tuQ4= =k6Wk -----END PGP SIGNATURE----- Merge tag 'net-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter and bpf. Current release - regressions: - sched: fix SKB_NOT_DROPPED_YET splat under debug config Current release - new code bugs: - tcp: - fix usec timestamps with TCP fastopen - fix possible out-of-bounds reads in tcp_hash_fail() - fix SYN option room calculation for TCP-AO - tcp_sigpool: fix some off by one bugs - bpf: fix compilation error without CGROUPS - ptp: - ptp_read() should not release queue - fix tsevqs corruption Previous releases - regressions: - llc: verify mac len before reading mac header Previous releases - always broken: - bpf: - fix check_stack_write_fixed_off() to correctly spill imm - fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END - check map->usercnt after timer->timer is assigned - dsa: lan9303: consequently nested-lock physical MDIO - dccp/tcp: call security_inet_conn_request() after setting IP addr - tg3: fix the TX ring stall due to incorrect full ring handling - phylink: initialize carrier state at creation - ice: fix direction of VF rules in switchdev mode Misc: - fill in a bunch of missing MODULE_DESCRIPTION()s, more to come" * tag 'net-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits) net: ti: icss-iep: fix setting counter value ptp: fix corrupted list in ptp_open ptp: ptp_read should not release queue net_sched: sch_fq: better validate TCA_FQ_WEIGHTS and TCA_FQ_PRIOMAP net: kcm: fill in MODULE_DESCRIPTION() net/sched: act_ct: Always fill offloading tuple iifidx netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses netfilter: xt_recent: fix (increase) ipv6 literal buffer length ipvs: add missing module descriptions netfilter: nf_tables: remove catchall element in GC sync path netfilter: add missing module descriptions drivers/net/ppp: use standard array-copy-function net: enetc: shorten enetc_setup_xdp_prog() error message to fit NETLINK_MAX_FMTMSG_LEN virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt() r8169: respect userspace disabling IFF_MULTICAST selftests/bpf: get trusted cgrp from bpf_iter__cgroup directly bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg net: phylink: initialize carrier state at creation test/vsock: add dobule bind connect test test/vsock: refactor vsock_accept ... |
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dbc9e341e3 |
s390/qeth: Fix typo 'weed' in comment
Replace 'weed' with 'we' in the comment. Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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5cf1a563a3 |
s390/ap: fix vanishing crypto cards in SE environment
A secure execution (SE, also known as confidential computing) guest may see asynchronous errors on a crypto firmware queue. The current implementation to gather information about cards and queues in ap_queue_info() simple returns if an asynchronous error is hanging on the firmware queue. If such a situation happened and it was the only queue visible for a crypto card within an SE guest, then the card vanished from sysfs as the AP bus scan function refuses to hold a card without any type information. As lszcrypt evaluates the sysfs such a card vanished from the lszcrypt card listing and the user is baffled and has no way to reset and thus clear the pending asynchronous error. This patch improves the named function to also evaluate GR2 of the TAPQ in case of asynchronous error pending. If there is a not-null value stored in, the info is processed now. In the end, a queue with pending asynchronous error does not lead to a vanishing card any more. Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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cfaef6516e |
s390/zcrypt: don't report online if card or queue is in check-stop state
If a card or a queue is in check-stop state, it can't be used by applications to perform crypto operations. Applications check the 'online' sysfs attribute to check if a card or queue is usable. Report a card or queue as offline in case it is in check-stop state. Furthermore, don't allow to set a card or queue online, if it is in check-stop state. This is similar to when the card or the queue is in deconfigured state, there it is also reported as being offline, and it can't be set online. Reviewed-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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e14aec2302 |
s390/ap: fix AP bus crash on early config change callback invocation
Fix kernel crash in AP bus code caused by very early invocation of the config change callback function via SCLP. After a fresh IML of the machine the crypto cards are still offline and will get switched online only with activation of any LPAR which has the card in it's configuration. A crypto card coming online is reported to the LPAR via SCLP and the AP bus offers a callback function to get this kind of information. However, it may happen that the callback is invoked before the AP bus init function is complete. As the callback triggers a synchronous AP bus scan, the scan may already run but some internal states are not initialized by the AP bus init function resulting in a crash like this: [ 11.635859] Unable to handle kernel pointer dereference in virtual kernel address space [ 11.635861] Failing address: 0000000000000000 TEID: 0000000000000887 [ 11.635862] Fault in home space mode while using kernel ASCE. [ 11.635864] AS:00000000894c4007 R3:00000001fece8007 S:00000001fece7800 P:000000000000013d [ 11.635879] Oops: 0004 ilc:1 [#1] SMP [ 11.635882] Modules linked in: [ 11.635884] CPU: 5 PID: 42 Comm: kworker/5:0 Not tainted 6.6.0-rc3-00003-g4dbf7cdc6b42 #12 [ 11.635886] Hardware name: IBM 3931 A01 751 (LPAR) [ 11.635887] Workqueue: events_long ap_scan_bus [ 11.635891] Krnl PSW : 0704c00180000000 0000000000000000 (0x0) [ 11.635895] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 [ 11.635897] Krnl GPRS: 0000000001000a00 0000000000000000 0000000000000006 0000000089591940 [ 11.635899] 0000000080000000 0000000000000a00 0000000000000000 0000000000000000 [ 11.635901] 0000000081870c00 0000000089591000 000000008834e4e2 0000000002625a00 [ 11.635903] 0000000081734200 0000038000913c18 000000008834c6d6 0000038000913ac8 [ 11.635906] Krnl Code:>0000000000000000: 0000 illegal [ 11.635906] 0000000000000002: 0000 illegal [ 11.635906] 0000000000000004: 0000 illegal [ 11.635906] 0000000000000006: 0000 illegal [ 11.635906] 0000000000000008: 0000 illegal [ 11.635906] 000000000000000a: 0000 illegal [ 11.635906] 000000000000000c: 0000 illegal [ 11.635906] 000000000000000e: 0000 illegal [ 11.635915] Call Trace: [ 11.635916] [<0000000000000000>] 0x0 [ 11.635918] [<000000008834e4e2>] ap_queue_init_state+0x82/0xb8 [ 11.635921] [<000000008834ba1c>] ap_scan_domains+0x6fc/0x740 [ 11.635923] [<000000008834c092>] ap_scan_adapter+0x632/0x8b0 [ 11.635925] [<000000008834c3e4>] ap_scan_bus+0xd4/0x288 [ 11.635927] [<00000000879a33ba>] process_one_work+0x19a/0x410 [ 11.635930] Discipline DIAG cannot be used without z/VM [ 11.635930] [<00000000879a3a2c>] worker_thread+0x3fc/0x560 [ 11.635933] [<00000000879aea60>] kthread+0x120/0x128 [ 11.635936] [<000000008792afa4>] __ret_from_fork+0x3c/0x58 [ 11.635938] [<00000000885ebe62>] ret_from_fork+0xa/0x30 [ 11.635942] Last Breaking-Event-Address: [ 11.635942] [<000000008834c6d4>] ap_wait+0xcc/0x148 This patch improves the ap_bus_force_rescan() function which is invoked by the config change callback by checking if a first initial AP bus scan has been done. If not, the force rescan request is simple ignored. Anyhow it does not make sense to trigger AP bus re-scans even before the very first bus scan is complete. Cc: stable@vger.kernel.org Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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c40284b364 |
s390/ap: re-enable interrupt for AP queues
This patch introduces some code lines which check for interrupt support enabled on an AP queue after a reply has been received. This invocation has been chosen as there is a good chance to have the queue empty at that time. As the enablement of the irq imples a state machine change the queue should not have any pending requests or unreceived replies. Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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01c89ab7f8 |
s390/ap: rework to use irq info from ap queue status
This patch reworks the irq handling and reporting code for the AP queue interrupt handling to always use the irq info from the queue status. Until now the interrupt status of an AP queue was stored into a bool variable within the ap_queue struct. This variable was set on a successful interrupt enablement and cleared with kicking a reset. However, it may be that the interrupt state is manipulated outband for example by a hypervisor. This patch removes this variable and instead the irq bit from the AP queue status which is always reflecting the current irq state is used. Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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e392ea4d4d |
s390 updates for the 6.7 merge window
- Get rid of private VM_FAULT flags - Add word-at-a-time implementation - Add DCACHE_WORD_ACCESS support - Cleanup control register handling - Disallow CPU hotplug of CPU 0 to simplify its handling complexity, following a similar restriction in x86 - Optimize pai crypto map allocation - Update the list of crypto express EP11 coprocessor operation modes - Fixes and improvements for secure guests AP pass-through - Several fixes to address incorrect page marking for address translation with the "cmma no-dat" feature, preventing potential incorrect guest TLB flushes - Fix early IPI handling - Several virtual vs physical address confusion fixes - Various small fixes and improvements all over the code -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmVFLkYACgkQjYWKoQLX FBgxRwf9FSNFwLcbYbG1x94rUUHnbaiyJWCezp3/ypr+m+qDvQatLYc75SxwrH0y ocSygqvtVryVkWAKKvOHF1Kg5R2Fedmzf5wuVTXglfPqE1ZgMGdwS/LtknIoz556 twZJIpFzUFt5xaljpTCZJanLMvy/npl0bilezhNGl6v7N5rsWLbfK6vsPMDm+TTZ yscapOsk8Z16NjXq0FETS5JHG65jjj9rkRfb0qD8SOFhti0fR9MSP2xeRXrDMDZE IWXog5usx2DS6VX2HnxA8O7z1hhuTccJ1K1+rYqbb0Fwccqi7QaGZXEvocYEvlvy lVe3/jbyn27hUoypHcfVCAVxdoOrnw== =SMOp -----END PGP SIGNATURE----- Merge tag 's390-6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Get rid of private VM_FAULT flags - Add word-at-a-time implementation - Add DCACHE_WORD_ACCESS support - Cleanup control register handling - Disallow CPU hotplug of CPU 0 to simplify its handling complexity, following a similar restriction in x86 - Optimize pai crypto map allocation - Update the list of crypto express EP11 coprocessor operation modes - Fixes and improvements for secure guests AP pass-through - Several fixes to address incorrect page marking for address translation with the "cmma no-dat" feature, preventing potential incorrect guest TLB flushes - Fix early IPI handling - Several virtual vs physical address confusion fixes - Various small fixes and improvements all over the code * tag 's390-6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (74 commits) s390/cio: replace deprecated strncpy with strscpy s390/sclp: replace deprecated strncpy with strtomem s390/cio: fix virtual vs physical address confusion s390/cio: export CMG value as decimal s390: delete the unused store_prefix() function s390/cmma: fix handling of swapper_pg_dir and invalid_pg_dir s390/cmma: fix detection of DAT pages s390/sclp: handle default case in sclp memory notifier s390/pai_crypto: remove per-cpu variable assignement in event initialization s390/pai: initialize event count once at initialization s390/pai_crypto: use PERF_ATTACH_TASK define for per task detection s390/mm: add missing arch_set_page_dat() call to gmap allocations s390/mm: add missing arch_set_page_dat() call to vmem_crst_alloc() s390/cmma: fix initial kernel address space page table walk s390/diag: add missing virt_to_phys() translation to diag224() s390/mm,fault: move VM_FAULT_ERROR handling to do_exception() s390/mm,fault: remove VM_FAULT_BADMAP and VM_FAULT_BADACCESS s390/mm,fault: remove VM_FAULT_SIGNAL s390/mm,fault: remove VM_FAULT_BADCONTEXT s390/mm,fault: simplify kfence fault handling ... |
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89ed67ef12 |
Networking changes for 6.7.
Core & protocols ---------------- - Support usec resolution of TCP timestamps, enabled selectively by a route attribute. - Defer regular TCP ACK while processing socket backlog, try to send a cumulative ACK at the end. Increase single TCP flow performance on a 200Gbit NIC by 20% (100Gbit -> 120Gbit). - The Fair Queuing (FQ) packet scheduler: - add built-in 3 band prio / WRR scheduling - support bypass if the qdisc is mostly idle (5% speed up for TCP RR) - improve inactive flow reporting - optimize the layout of structures for better cache locality - Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern replacement for the old MD5 option. - Add more retransmission timeout (RTO) related statistics to TCP_INFO. - Support sending fragmented skbs over vsock sockets. - Make sure we send SIGPIPE for vsock sockets if socket was shutdown(). - Add sysctl for ignoring lower limit on lifetime in Router Advertisement PIO, based on an in-progress IETF draft. - Add sysctl to control activation of TCP ping-pong mode. - Add sysctl to make connection timeout in MPTCP configurable. - Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps limit the number of wakeups. - Support netlink GET for MDB (multicast forwarding), allowing user space to request a single MDB entry instead of dumping the entire table. - Support selective FDB flushing in the VXLAN tunnel driver. - Allow limiting learned FDB entries in bridges, prevent OOM attacks. - Allow controlling via configfs netconsole targets which were created via the kernel cmdline at boot, rather than via configfs at runtime. - Support multiple PTP timestamp event queue readers with different filters. - MCTP over I3C. BPF --- - Add new veth-like netdevice where BPF program defines the logic of the xmit routine. It can operate in L3 and L2 mode. - Support exceptions - allow asserting conditions which should never be true but are hard for the verifier to infer. With some extra flexibility around handling of the exit / failure. https://lwn.net/Articles/938435/ - Add support for local per-cpu kptr, allow allocating and storing per-cpu objects in maps. Access to those objects operates on the value for the current CPU. This allows to deprecate local one-off implementations of per-CPU storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps. - Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is for systemd to re-implement the LogNamespace feature which allows running multiple instances of systemd-journald to process the logs of different services. - Enable open-coded task_vma iteration, after maple tree conversion made it hard to directly walk VMAs in tracing programs. - Add open-coded task, css_task and css iterator support. One of the use cases is customizable OOM victim selection via BPF. - Allow source address selection with bpf_*_fib_lookup(). - Add ability to pin BPF timer to the current CPU. - Prevent creation of infinite loops by combining tail calls and fentry/fexit programs. - Add missed stats for kprobes to retrieve the number of missed kprobe executions and subsequent executions of BPF programs. - Inherit system settings for CPU security mitigations. - Add BPF v4 CPU instruction support for arm32 and s390x. Changes to common code ---------------------- - overflow: add DEFINE_FLEX() for on-stack definition of structs with flexible array members. - Process doc update with more guidance for reviewers. Driver API ---------- - Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy mutex in most places and remove a lot of smaller locks. - Create a common DPLL configuration API. Allow configuring and querying state of PLL circuits used for clock syntonization, in network time distribution. - Unify fragmented and full page allocation APIs in page pool code. Let drivers be ignorant of PAGE_SIZE. - Rework PHY state machine to avoid races with calls to phy_stop(). - Notify DSA drivers of MAC address changes on user ports, improve correctness of offloads which depend on matching port MAC addresses. - Allow antenna control on injected WiFi frames. - Reduce the number of variants of napi_schedule(). - Simplify error handling when composing devlink health messages. Misc ---- - A lot of KCSAN data race "fixes", from Eric. - A lot of __counted_by() annotations, from Kees. - A lot of strncpy -> strscpy and printf format fixes. - Replace master/slave terminology with conduit/user in DSA drivers. - Handful of KUnit tests for netdev and WiFi core. Removed ------- - AppleTalk COPS. - AppleTalk ipddp. - TI AR7 CPMAC Ethernet driver. Drivers ------- - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - add a driver for the Intel E2000 IPUs - make CRC/FCS stripping configurable - cross-timestamping for E823 devices - basic support for E830 devices - use aux-bus for managing client drivers - i40e: report firmware versions via devlink - nVidia/Mellanox: - support 4-port NICs - increase max number of channels to 256 - optimize / parallelize SF creation flow - Broadcom (bnxt): - enhance NIC temperature reporting - support PAM4 speeds and lane configuration - Marvell OcteonTX2: - PTP pulse-per-second output support - enable hardware timestamping for VFs - Solarflare/AMD: - conntrack NAT offload and offload for tunnels - Wangxun (ngbe/txgbe): - expose HW statistics - Pensando/AMD: - support PCI level reset - narrow down the condition under which skbs are linearized - Netronome/Corigine (nfp): - support CHACHA20-POLY1305 crypto in IPsec offload - Ethernet NICs embedded, slower, virtual: - Synopsys (stmmac): - add Loongson-1 SoC support - enable use of HW queues with no offload capabilities - enable PPS input support on all 5 channels - increase TX coalesce timer to 5ms - RealTek USB (r8152): improve efficiency of Rx by using GRO frags - xen: support SW packet timestamping - add drivers for implementations based on TI's PRUSS (AM64x EVM) - nVidia/Mellanox Ethernet datacenter switches: - avoid poor HW resource use on Spectrum-4 by better block selection for IPv6 multicast forwarding and ordering of blocks in ACL region - Ethernet embedded switches: - Microchip: - support configuring the drive strength for EMI compliance - ksz9477: partial ACL support - ksz9477: HSR offload - ksz9477: Wake on LAN - Realtek: - rtl8366rb: respect device tree config of the CPU port - Ethernet PHYs: - support Broadcom BCM5221 PHYs - TI dp83867: support hardware LED blinking - CAN: - add support for Linux-PHY based CAN transceivers - at91_can: clean up and use rx-offload helpers - WiFi: - MediaTek (mt76): - new sub-driver for mt7925 USB/PCIe devices - HW wireless <> Ethernet bridging in MT7988 chips - mt7603/mt7628 stability improvements - Qualcomm (ath12k): - WCN7850: - enable 320 MHz channels in 6 GHz band - hardware rfkill support - enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to make scan faster - read board data variant name from SMBIOS - QCN9274: mesh support - RealTek (rtw89): - TDMA-based multi-channel concurrency (MCC) - Silicon Labs (wfx): - Remain-On-Channel (ROC) support - Bluetooth: - ISO: many improvements for broadcast support - mark BCM4378/BCM4387 as BROKEN_LE_CODED - add support for QCA2066 - btmtksdio: enable Bluetooth wakeup from suspend Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmU8XsYACgkQMUZtbf5S Irv19RAAnud/24OOF5XMEJkIcYlnfqximh4XO6PujRSYkSkOUJdZTF6iJPgf3pSP YpwoHYbYKHYfeOf8+3bTNESiQNSnoVmvmvwiS6/7lZ3behHUrGLQzW9Htc3EZyWH 2h6QkDZ5OOjfg0bwYSfp3vXkmMH2k8WE9Y0NvCkhcohqZi13Rmp14RnyPmNb2d1V yZRYDMSM133KqE6gnBr1Ct65IEvnKeGlCUN2mTGqOJgdn6DZMsyxvtt0y4rmN7Ab 41+CgPU5SfxfbYpW+Dl2HJpgfte3WrC57KC6AM0PAPJzPmQWgeB/m9mjz/apj6Bg bhsEIo7FdvbCnQm3yWPhK2OgCAcSwLr8jfGMU+Q+W4VnL5SRRR3Rm0zjsze+kHNP OfqJgxzl3DpvoJqVBy1h5FGcZt0XHwhksm4cTxWqIahsF+veY0ECBXbuBBQx9XTF Y7INfI8ulg7wISJs+CJfIClYkgOibTw2u8taBS5ikbtgxNqp5D4QqODn7UefQap1 PR/IDYODF+zRgmMJLeBqSa6fij6BkfOEDiOWak5kggBoZdtbtmeKI6tzze06CNdW lWv1WEhRufxnwK+IuWsEkjhiMbs2WGLvkJ5JbgQV9BfqHfIfiqBCrcWtT/WbQnGt lmU46CXh1t/FZEqbmK9h+8vsIIfrcDl6jb5npEiKPRG00vDKRTM= =46nS -----END PGP SIGNATURE----- Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core & protocols: - Support usec resolution of TCP timestamps, enabled selectively by a route attribute. - Defer regular TCP ACK while processing socket backlog, try to send a cumulative ACK at the end. Increase single TCP flow performance on a 200Gbit NIC by 20% (100Gbit -> 120Gbit). - The Fair Queuing (FQ) packet scheduler: - add built-in 3 band prio / WRR scheduling - support bypass if the qdisc is mostly idle (5% speed up for TCP RR) - improve inactive flow reporting - optimize the layout of structures for better cache locality - Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern replacement for the old MD5 option. - Add more retransmission timeout (RTO) related statistics to TCP_INFO. - Support sending fragmented skbs over vsock sockets. - Make sure we send SIGPIPE for vsock sockets if socket was shutdown(). - Add sysctl for ignoring lower limit on lifetime in Router Advertisement PIO, based on an in-progress IETF draft. - Add sysctl to control activation of TCP ping-pong mode. - Add sysctl to make connection timeout in MPTCP configurable. - Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps limit the number of wakeups. - Support netlink GET for MDB (multicast forwarding), allowing user space to request a single MDB entry instead of dumping the entire table. - Support selective FDB flushing in the VXLAN tunnel driver. - Allow limiting learned FDB entries in bridges, prevent OOM attacks. - Allow controlling via configfs netconsole targets which were created via the kernel cmdline at boot, rather than via configfs at runtime. - Support multiple PTP timestamp event queue readers with different filters. - MCTP over I3C. BPF: - Add new veth-like netdevice where BPF program defines the logic of the xmit routine. It can operate in L3 and L2 mode. - Support exceptions - allow asserting conditions which should never be true but are hard for the verifier to infer. With some extra flexibility around handling of the exit / failure: https://lwn.net/Articles/938435/ - Add support for local per-cpu kptr, allow allocating and storing per-cpu objects in maps. Access to those objects operates on the value for the current CPU. This allows to deprecate local one-off implementations of per-CPU storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps. - Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is for systemd to re-implement the LogNamespace feature which allows running multiple instances of systemd-journald to process the logs of different services. - Enable open-coded task_vma iteration, after maple tree conversion made it hard to directly walk VMAs in tracing programs. - Add open-coded task, css_task and css iterator support. One of the use cases is customizable OOM victim selection via BPF. - Allow source address selection with bpf_*_fib_lookup(). - Add ability to pin BPF timer to the current CPU. - Prevent creation of infinite loops by combining tail calls and fentry/fexit programs. - Add missed stats for kprobes to retrieve the number of missed kprobe executions and subsequent executions of BPF programs. - Inherit system settings for CPU security mitigations. - Add BPF v4 CPU instruction support for arm32 and s390x. Changes to common code: - overflow: add DEFINE_FLEX() for on-stack definition of structs with flexible array members. - Process doc update with more guidance for reviewers. Driver API: - Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy mutex in most places and remove a lot of smaller locks. - Create a common DPLL configuration API. Allow configuring and querying state of PLL circuits used for clock syntonization, in network time distribution. - Unify fragmented and full page allocation APIs in page pool code. Let drivers be ignorant of PAGE_SIZE. - Rework PHY state machine to avoid races with calls to phy_stop(). - Notify DSA drivers of MAC address changes on user ports, improve correctness of offloads which depend on matching port MAC addresses. - Allow antenna control on injected WiFi frames. - Reduce the number of variants of napi_schedule(). - Simplify error handling when composing devlink health messages. Misc: - A lot of KCSAN data race "fixes", from Eric. - A lot of __counted_by() annotations, from Kees. - A lot of strncpy -> strscpy and printf format fixes. - Replace master/slave terminology with conduit/user in DSA drivers. - Handful of KUnit tests for netdev and WiFi core. Removed: - AppleTalk COPS. - AppleTalk ipddp. - TI AR7 CPMAC Ethernet driver. Drivers: - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - add a driver for the Intel E2000 IPUs - make CRC/FCS stripping configurable - cross-timestamping for E823 devices - basic support for E830 devices - use aux-bus for managing client drivers - i40e: report firmware versions via devlink - nVidia/Mellanox: - support 4-port NICs - increase max number of channels to 256 - optimize / parallelize SF creation flow - Broadcom (bnxt): - enhance NIC temperature reporting - support PAM4 speeds and lane configuration - Marvell OcteonTX2: - PTP pulse-per-second output support - enable hardware timestamping for VFs - Solarflare/AMD: - conntrack NAT offload and offload for tunnels - Wangxun (ngbe/txgbe): - expose HW statistics - Pensando/AMD: - support PCI level reset - narrow down the condition under which skbs are linearized - Netronome/Corigine (nfp): - support CHACHA20-POLY1305 crypto in IPsec offload - Ethernet NICs embedded, slower, virtual: - Synopsys (stmmac): - add Loongson-1 SoC support - enable use of HW queues with no offload capabilities - enable PPS input support on all 5 channels - increase TX coalesce timer to 5ms - RealTek USB (r8152): improve efficiency of Rx by using GRO frags - xen: support SW packet timestamping - add drivers for implementations based on TI's PRUSS (AM64x EVM) - nVidia/Mellanox Ethernet datacenter switches: - avoid poor HW resource use on Spectrum-4 by better block selection for IPv6 multicast forwarding and ordering of blocks in ACL region - Ethernet embedded switches: - Microchip: - support configuring the drive strength for EMI compliance - ksz9477: partial ACL support - ksz9477: HSR offload - ksz9477: Wake on LAN - Realtek: - rtl8366rb: respect device tree config of the CPU port - Ethernet PHYs: - support Broadcom BCM5221 PHYs - TI dp83867: support hardware LED blinking - CAN: - add support for Linux-PHY based CAN transceivers - at91_can: clean up and use rx-offload helpers - WiFi: - MediaTek (mt76): - new sub-driver for mt7925 USB/PCIe devices - HW wireless <> Ethernet bridging in MT7988 chips - mt7603/mt7628 stability improvements - Qualcomm (ath12k): - WCN7850: - enable 320 MHz channels in 6 GHz band - hardware rfkill support - enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to make scan faster - read board data variant name from SMBIOS - QCN9274: mesh support - RealTek (rtw89): - TDMA-based multi-channel concurrency (MCC) - Silicon Labs (wfx): - Remain-On-Channel (ROC) support - Bluetooth: - ISO: many improvements for broadcast support - mark BCM4378/BCM4387 as BROKEN_LE_CODED - add support for QCA2066 - btmtksdio: enable Bluetooth wakeup from suspend" * tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits) net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos() net: mana: Use xdp_set_features_flag instead of direct assignment vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size() iavf: delete the iavf client interface iavf: add a common function for undoing the interrupt scheme iavf: use unregister_netdev iavf: rely on netdev's own registered state iavf: fix the waiting time for initial reset iavf: in iavf_down, don't queue watchdog_task if comms failed iavf: simplify mutex_trylock+sleep loops iavf: fix comments about old bit locks doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name tools: ynl: introduce option to process unknown attributes or types ipvlan: properly track tx_errors netdevsim: Block until all devices are released nfp: using napi_build_skb() to replace build_skb() net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy" net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN net: dsa: microchip: Refactor switch shutdown routine for WoL preparation ... |
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a8ab90ff47
|
s390/dasd: Convert to bdev_open_by_path()
Convert dasd to use bdev_open_by_path() and pass the handle around. CC: linux-s390@vger.kernel.org CC: Christian Borntraeger <borntraeger@linux.ibm.com> CC: Sven Schnelle <svens@linux.ibm.com> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230927093442.25915-14-jack@suse.cz Signed-off-by: Christian Brauner <brauner@kernel.org> |
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ec4c20ca09 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/mac80211/rx.c |
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991a211aa9 |
s390/cio: replace deprecated strncpy with strscpy
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect both `params` and `id` to be NUL-terminated based on their usage with format strings: format_node_data(iuparams, iunodeid, &lir->incident_node); format_node_data(auparams, aunodeid, &lir->attached_node); switch (lir->iq.class) { case LIR_IQ_CLASS_DEGRADED: pr_warn("Link degraded: RS=%02x RSID=%04x IC=%02x " "IUPARAMS=%s IUNODEID=%s AUPARAMS=%s AUNODEID=%s\n", sei_area->rs, sei_area->rsid, lir->ic, iuparams, iunodeid, auparams, aunodeid); NUL-padding is not required as both `params` and `id` have been memset to 0: memset(params, 0, PARAMS_LEN); memset(id, 0, NODEID_LEN); Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Note that there's no overread bugs in the current implementation as the string literal "n/a" has a size much smaller than PARAMS_LEN or NODEID_LEN. Nonetheless, let's favor strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231023-strncpy-drivers-s390-cio-chsc-c-v1-1-8b76a7b83260@google.com Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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e37988bcd1 |
s390/sclp: replace deprecated strncpy with strtomem
Let's move away from using strncpy() as it is deprecated [1]. Instead use strtomem() as `e.id` is already marked as nonstring: | char id[4] __nonstring; We don't need strtomem_pad() because `e` is already memset to 0 -- rendering any additional NUL-padding useless. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231023-strncpy-drivers-s390-char-sclp-c-v1-1-eaeef80522bb@google.com Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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e78002aa9a |
s390/cio: fix virtual vs physical address confusion
Fix virtual vs physical address confusion (which currently are the same). Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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f48781d220 |
s390/cio: export CMG value as decimal
Change format of the "cmg" sysfs attribute from hex to decimal to make it easier to consume. Note that this should not break any existing users since only values 2 and 3 are currently exported. Also the main user already assumes decimal notation [1]. [1] https://sourceforge.net/p/sblim/gather/ci/master/tree/plugin/metriczCH.c Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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e3f4170ccf |
s390/sclp: handle default case in sclp memory notifier
When new memory notifier types are added in common code and unimplemented on s390, return success instead of EINVAL return code. This prevents breakage when new memory notifier types are added. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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e43e6d9582 |
s390/qeth: replace deprecated strncpy with strscpy
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect new_entry->dbf_name to be NUL-terminated based on its use with strcmp(): | if (strcmp(entry->dbf_name, name) == 0) { Moreover, NUL-padding is not required as new_entry is kzalloc'd just before this assignment: | new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); ... rendering any future NUL-byte assignments (like the ones strncpy() does) redundant. Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com> Tested-by: Thorsten Winkler <twinkler@linux.ibm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231023-strncpy-drivers-s390-net-qeth_core_main-c-v1-1-e7ce65454446@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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19d1c64b77 |
s390/ctcm: replace deprecated strncpy with strscpy
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect chid to be NUL-terminated based on its use with format strings: CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO, "%s(%s) %s", CTCM_FUNTAIL, chid, ok ? "OK" : "failed"); Moreover, NUL-padding is not required as it is _only_ used in this one instance with a format string. Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. We can also drop the +1 from chid's declaration as we no longer need to be cautious about leaving a spot for a NUL-byte. Let's use the more idiomatic strscpy usage of (dest, src, sizeof(dest)) as this more closely ties the destination buffer to the length. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com> Tested-by: Thorsten Winkler <twinkler@linux.ibm.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231023-strncpy-drivers-s390-net-ctcm_main-c-v1-1-265db6e78165@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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4d7b04c0cd |
s390 updates for 6.6-rc7
- Fix IOMMU bitmap allocation in s390 PCI to avoid out of bounds access when IOMMU pages aren't a multiple of 64. - Fix kasan crashes when accessing DCSS mapping in memory holes by adding corresponding kasan zero shadow mappings. - Fix a memory leak in css_alloc_subchannel in case dma_set_coherent_mask fails. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmUzm4wACgkQjYWKoQLX FBhLVAgAkgucCi+fUdQbmvU80cshWz0+eMG/fKLT5Xkg1sOxRhmy3qkmNtkb9471 WcrplvSP0QjGvoBtKSC0Qme7oZlYTUjUss1jLxzV3y/KAR4G8WAdoMbpKB6bIOzn S0Sy0WelU9+bUBimxz+ZbdcQKbah/1uFdXqOJueX5YJQZko6hGE9VP+KQ7rKeE/E ie5h4UjLY64xwXTn4BxkYd0iTqrHYhZ2RaDO+c6yoqTZ+RSH7v71Q3RYxx4jgSTW uMyHnRknjMia8ms696EDqzAH2FZy15vhOCSc64zeccujE3o0ETB3ZVPBg9fr9s+F Yc3KFKqrJehSgxFeCCXHG8wQJyzLgQ== =3nJs -----END PGP SIGNATURE----- Merge tag 's390-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Fix IOMMU bitmap allocation in s390 PCI to avoid out of bounds access when IOMMU pages aren't a multiple of 64 - Fix kasan crashes when accessing DCSS mapping in memory holes by adding corresponding kasan zero shadow mappings - Fix a memory leak in css_alloc_subchannel in case dma_set_coherent_mask fails * tag 's390-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: fix iommu bitmap allocation s390/kasan: handle DCSS mapping in memory holes s390/cio: fix a memleak in css_alloc_subchannel |
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8d6be876bb |
s390/ap: show APFS value on error reply 0x8B
With Secure Execution the error reply RX 0x8B now carries an APFS value indicating why the request has been filtered by a lower layer of the firmware. So display this value as a warning line in the s390 debug feature trace. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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a19a161482 |
s390/zcrypt: introduce new internal AP queue se_bound attribute
This patch introduces a new AP queue internal attribute se_bound which reflects the bound state of an APQN within a Secure Execution environment. With introduction of Secure Execution guests now an AP firmware queue needs to be bound to the guest before usage. This patch introduces a new internal attribute reflecting this bound state and some glue code to handle this new field during lifetime of an AP queue device. Together with that now the zcrypt scheduler considers the state of the AP queues when a message is about to be distributed among the existing queues. There is a new function ap_queue_usable() which returns true only when all conditions for using this AP queue device are fulfilled. In details this means: the AP queue needs to be configured, not checkstopped and within an SE environment it needs to be bound. So the new function gives and indication if the AP queue device is ready to serve requests or not. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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32d1d9204f |
s390/ap: re-init AP queues on config on
On a state toggle from config off to config on and on the
state toggle from checkstop to not checkstop the queue's
internal states was set but the state machine was not
nudged. This did not care as on the first enqueue of a
request the state machine kick ran.
However, within an Secure Execution guest a queue is
only chosen by the scheduler when it has been bound.
But to bind a queue, it needs to run through the initial
states (reset, enable interrupts, ...). So this is like
a chicken-and-egg problem and the result was in fact
that a queue was unusable after a config off/on toggle.
With some slight rework of the handling of these states
now the new function _ap_queue_init_state() is called
which is the core of the ap_queue_init_state() function
but without locking handling. This has the benefit that
it can be called on all the places where a (re-)init
of the AP queue's state machine is needed.
Fixes:
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63e8b94ad1 |
s390/cio: fix a memleak in css_alloc_subchannel
When dma_set_coherent_mask() fails, sch->lock has not been
freed, which is allocated in css_sch_create_locks(), leading
to a memleak.
Fixes:
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a72178cfe8 |
net/smc: Fix dependency of SMC on ISM
When the SMC protocol is built into the kernel proper while ISM is
configured to be built as module, linking the kernel fails due to
unresolved dependencies out of net/smc/smc_ism.o to
ism_get_smcd_ops, ism_register_client, and ism_unregister_client
as reported via the linux-next test automation (see link).
This however is a bug introduced a while ago.
Correct the dependency list in ISM's and SMC's Kconfig to reflect the
dependencies that are actually inverted. With this you cannot build a
kernel with CONFIG_SMC=y and CONFIG_ISM=m. Either ISM needs to be 'y',
too - or a 'n'. That way, SMC can still be configured on non-s390
architectures that do not have (nor need) an ISM driver.
Fixes:
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b481f644d9 |
scsi: zfcp: Fix a double put in zfcp_port_enqueue()
When device_register() fails, zfcp_port_release() will be called after
put_device(). As a result, zfcp_ccw_adapter_put() will be called twice: one
in zfcp_port_release() and one in the error path after device_register().
So the reference on the adapter object is doubly put, which may lead to a
premature free. Fix this by adjusting the error tag after
device_register().
Fixes:
|
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99441a38c3 |
s390: use control register bit defines
Use control register bit defines instead of plain numbers where possible. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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527618abb9 |
s390/ctlreg: add struct ctlreg
Add struct ctlreg to enforce strict type checking / usage for control register functions. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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2372d39142 |
s390/ctlreg: use local_ctl_load() and local_ctl_store() where possible
Convert all single control register usages of __local_ctl_load() and __local_ctl_store() to local_ctl_load() and local_ctl_store(). This also requires to change the type of some struct lowcore members from __u64 to unsigned long. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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8d5e98f8d6 |
s390/ctlreg: add local and system prefix to some functions
Add local and system prefix to some functions to clarify they change control register contents on either the local CPU or the on all CPUs. This results in the following API: Two defines which load and save multiple control registers. The defines correlate with the following C prototypes: void __local_ctl_load(unsigned long *, unsigned int cr_low, unsigned int cr_high); void __local_ctl_store(unsigned long *, unsigned int cr_low, unsigned int cr_high); Two functions which locally set or clear one bit for a specified control register: void local_ctl_set_bit(unsigned int cr, unsigned int bit); void local_ctl_clear_bit(unsigned int cr, unsigned int bit); Two functions which set or clear one bit for a specified control register on all CPUs: void system_ctl_set_bit(unsigned int cr, unsigned int bit); void system_ctl_clear_bit(unsigend int cr, unsigned int bit); Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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ebe1cd530f |
s390/ctlreg: rename ctl_reg.h to ctlreg.h
Rename ctl_reg.h to ctlreg.h so it matches not only ctlreg.c but also other control register related function, union, and structure names, which all come with a ctlreg prefix. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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0c4d01f395 |
s390/ctlreg: move control register code to separate file
Control register handling has nothing to do with low level SMP code. Move it to a separate file. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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f3cfb875d0 |
s390/zcrypt: update list of EP11 operation modes
Add additional operation mode strings into the EP11 operation mode table. These strings are returned by sysfs entries /sys/devices/ap/cardxx/op_modes and /sys/devices/ap/cardxx/xx.yyyy/op_modes. Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com> Reviewed-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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7402e635ed |
block-6.6-2023-09-08
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmT7NSUQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpuIuEACxQj0JjIVwgp8VlUcMAEFap7GH940qs8is tnRrGS48G/z3WZ0zizGQ1hF2m9oOJ1NwZ1bBrGJlVBP8KSgyR9IxI6WVt0JBZgg8 DNQt+v5FoX4v5ZbFr/NTqz/6YnPWVwyTkJs4JIi9YLmpKkd58N+51n3wl56xyrp7 8OcjHPH1ZI0qGar2poPXI7EKaweSzJW7nr3/cHujYoCfAGn7eZbHNgY0wdAtWdhM oGFABgMKTFKA0rCSaP8uo7GIqov+KXvFUNOuC6eNjtaUvXMecPLEJxvDhhi52fml LEH1a9bmtazu6bufrbI2D4SmXLNBcqnQw5d/1pn9oRO/UU6AAi6E7I/L1iodKWav bkr2i+YMnhUqVDFRwy+j78bcGRlLPWupvj68RdpvAvzhdW/85p9nH66CJfTnjQ3q xJJKoUREd/8C6ktm5xHYyETxcL5q6Vdz1w5GmsCyOWWpsXsEbh0GHn6pRDkLWJf4 OQhO4CbxIARGE5NRK8MYl/J/581yS1cIdGZAg7hsVHzTGDSt3h/Hlh6ONpWCcvXD SJI39W83oBSOnsbRG4FU6Bnt/WHTD0yi07cr867l9HEq63JOK/OduMjXA/tdRfwP fZU3RfFYcS8+h9UHgrSgvCk03fCjq1HsWCDfpc6sUuRG1fH6jSNFdkCKqhCoU9Py K2IKi1IE0Q== =4SLW -----END PGP SIGNATURE----- Merge tag 'block-6.6-2023-09-08' of git://git.kernel.dk/linux Pull block fixes from Jens Axboe: - Fix null_blk polled IO timeout handling (Chengming) - Regression fix for swapped arguments in drbd bvec_set_page() (Christoph) - String length handling fix for s390 dasd (Heiko) - Fixes for blk-throttle accounting (Yu) - Fix page pinning issue for same page segments (Christoph) - Remove redundant file_remove_privs() call (Christoph) - Fix a regression in partition handling for devices not supporting partitions (Li) * tag 'block-6.6-2023-09-08' of git://git.kernel.dk/linux: drbd: swap bvec_set_page len and offset block: fix pin count management when merging same-page segments null_blk: fix poll request timeout handling s390/dasd: fix string length handling block: don't add or resize partition on the disk with GENHD_FL_NO_PART block: remove the call to file_remove_privs in blkdev_write_iter blk-throttle: consider 'carryover_ios/bytes' in throtl_trim_slice() blk-throttle: use calculate_io/bytes_allowed() for throtl_trim_slice() blk-throttle: fix wrong comparation while 'carryover_ios/bytes' is negative blk-throttle: print signed value 'carryover_bytes/ios' for user |
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4a0fc73da9 |
more s390 updates for 6.6 merge window
- Couple of virtual vs physical address confusion fixes - Rework locking in dcssblk driver to address a lockdep warning - Remove support for "noexec" kernel command line option since there is no use case where it would make sense - Simplify kernel mapping setup and get rid of quite a bit of code - Add architecture specific __set_memory_yy() functions which allow to modify kernel mappings. Unlike the set_memory_xx() variants they take void pointer start and end parameters, which allows to use them without the usual casts, and also to use them on areas larger than 8TB. Note that the set_memory_xx() family comes with an int num_pages parameter which overflows with 8TB. This could be addressed by changing the num_pages parameter to unsigned long, however requires to change all architectures, since the module code expects an int parameter (see module_set_memory()). This was indeed an issue since for debug_pagealloc() we call set_memory_4k() on the whole identity mapping. Therefore address this for now with the __set_memory_yy() variant, and address common code later - Use dev_set_name() and also fix memory leak in zcrypt driver error handling - Remove unused lsi_mask from airq_struct - Add warning for invalid kernel mapping requests -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEECMNfWEw3SLnmiLkZIg7DeRspbsIFAmT5sYkACgkQIg7DeRsp bsJQHg//SFJOcVr2uViorvmt+IyiW78H75y8+AC6qoxZ3fuJeuyW2zz/resRsFRO UDCjkV2QYT885ADFUMcunf7LQnJYpSFVjAB6WEhgFr+bFdMWtX1crjHsMHkpcobR Fo4IFurG5NOMIdunPwKiO/dLU8pNGTm1T430uyLZH3ApVrmJ8stgOczusqTO/h3V tjbC5HAm9BBwNyOd2lnZSi8pbUMcfGE2DkRYhFQup1N9NT0BC4S6B8vTsD7NVYVZ WbJzqSl3CnTUJxZFX287YDW6cSaPCLAUfCl7r5FJZUoGvUtOVLlqcOjIIm/72epv YygMI8RdM0KHuzOd8XTNDbBnyYWTmWnZypCQVgNezY1GiO5nfTCkwYLZZagcc0Lo 6fx1B7xBbNao9/pURa6wJ9dXsx+NmD52DjM806hP1H+qoL/YP8dLqV6Qh2C1PFzI VncrnG2mnxjwry5WoOyl19SKqXDgmDylnFuHQHKA9mdCaqZWNkqovOo/6qE6OdWI Q3TinPwTug9vmgwBuQgua/2R1owy7G9mJwwDW9AtZXVzlMG6k06deKIYrZjLxf6Z hOtAu+Xy5IeoXOaaOFU92RsRKX481OTG77rWLREC+orAT1dPrfnguPLlQ7KeFbkR foduTTHcDPOLiIVL1RbWQC9AAw/i7IjN04Jp6KFlQTZqLATyPbM= =+iSZ -----END PGP SIGNATURE----- Merge tag 's390-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull more s390 updates from Heiko Carstens: - A couple of virtual vs physical address confusion fixes - Rework locking in dcssblk driver to address a lockdep warning - Remove support for "noexec" kernel command line option since there is no use case where it would make sense - Simplify kernel mapping setup and get rid of quite a bit of code - Add architecture specific __set_memory_yy() functions which allow us to modify kernel mappings. Unlike the set_memory_xx() variants they take void pointer start and end parameters, which allows using them without the usual casts, and also to use them on areas larger than 8TB. Note that the set_memory_xx() family comes with an int num_pages parameter which overflows with 8TB. This could be addressed by changing the num_pages parameter to unsigned long, however requires to change all architectures, since the module code expects an int parameter (see module_set_memory()). This was indeed an issue since for debug_pagealloc() we call set_memory_4k() on the whole identity mapping. Therefore address this for now with the __set_memory_yy() variant, and address common code later - Use dev_set_name() and also fix memory leak in zcrypt driver error handling - Remove unused lsi_mask from airq_struct - Add warning for invalid kernel mapping requests * tag 's390-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/vmem: do not silently ignore mapping limit s390/zcrypt: utilize dev_set_name() ability to use a formatted string s390/zcrypt: don't leak memory if dev_set_name() fails s390/mm: fix MAX_DMA_ADDRESS physical vs virtual confusion s390/airq: remove lsi_mask from airq_struct s390/mm: use __set_memory() variants where useful s390/set_memory: add __set_memory() variant s390/set_memory: generate all set_memory() functions s390/mm: improve description of mapping permissions of prefix pages s390/amode31: change type of __samode31, __eamode31, etc s390/mm: simplify kernel mapping setup s390: remove "noexec" option s390/vmem: fix virtual vs physical address confusion s390/dcssblk: fix lockdep warning s390/monreader: fix virtual vs physical address confusion |
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f59ec04d38 |
s390/zcrypt: utilize dev_set_name() ability to use a formatted string
With the dev_set_name() prototype it's not obvious that it takes a formatted string as a parameter. Use its facility instead of duplicating the same with strncpy()/snprintf() calls. With this, also prevent return error code to be shadowed. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230831110000.24279-2-andriy.shevchenko@linux.intel.com Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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6252f47b78 |
s390/zcrypt: don't leak memory if dev_set_name() fails
When dev_set_name() fails, zcdn_create() doesn't free the newly
allocated resources. Do it.
Fixes:
|
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8e1e49550d |
TTY/Serial driver changes for 6.6-rc1
Here is the big set of tty and serial driver changes for 6.6-rc1. Lots of cleanups in here this cycle, and some driver updates. Short summary is: - Jiri's continued work to make the tty code and apis be a bit more sane with regards to modern kernel coding style and types - cpm_uart driver updates - n_gsm updates and fixes - meson driver updates - sc16is7xx driver updates - 8250 driver updates for different hardware types - qcom-geni driver fixes - tegra serial driver change - stm32 driver updates - synclink_gt driver cleanups - tty structure size reduction All of these have been in linux-next this week with no reported issues. The last bit of cleanups from Jiri and the tty structure size reduction came in last week, a bit late but as they were just style changes and size reductions, I figured they should get into this merge cycle so that others can work on top of them with no merge conflicts. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZPH+jA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ykKyACgldt6QeenTN+6dXIHS/eQHtTKZwMAn3arSeXI QrUUnLFjOWyoX87tbMBQ =LVw0 -----END PGP SIGNATURE----- Merge tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the big set of tty and serial driver changes for 6.6-rc1. Lots of cleanups in here this cycle, and some driver updates. Short summary is: - Jiri's continued work to make the tty code and apis be a bit more sane with regards to modern kernel coding style and types - cpm_uart driver updates - n_gsm updates and fixes - meson driver updates - sc16is7xx driver updates - 8250 driver updates for different hardware types - qcom-geni driver fixes - tegra serial driver change - stm32 driver updates - synclink_gt driver cleanups - tty structure size reduction All of these have been in linux-next this week with no reported issues. The last bit of cleanups from Jiri and the tty structure size reduction came in last week, a bit late but as they were just style changes and size reductions, I figured they should get into this merge cycle so that others can work on top of them with no merge conflicts" * tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits) tty: shrink the size of struct tty_struct by 40 bytes tty: n_tty: deduplicate copy code in n_tty_receive_buf_real_raw() tty: n_tty: extract ECHO_OP processing to a separate function tty: n_tty: unify counts to size_t tty: n_tty: use u8 for chars and flags tty: n_tty: simplify chars_in_buffer() tty: n_tty: remove unsigned char casts from character constants tty: n_tty: move newline handling to a separate function tty: n_tty: move canon handling to a separate function tty: n_tty: use MASK() for masking out size bits tty: n_tty: make n_tty_data::num_overrun unsigned tty: n_tty: use time_is_before_jiffies() in n_tty_receive_overrun() tty: n_tty: use 'num' for writes' counts tty: n_tty: use output character directly tty: n_tty: make flow of n_tty_receive_buf_common() a bool Revert "tty: serial: meson: Add a earlycon for the T7 SoC" Documentation: devices.txt: Fix minors for ttyCPM* Documentation: devices.txt: Remove ttySIOC* Documentation: devices.txt: Remove ttyIOC* serial: 8250_bcm7271: improve bcm7271 8250 port ... |
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f7cf224246 |
s390/dasd: fix string length handling
Building dasd_eckd.o with latest clang reveals this bug:
CC drivers/s390/block/dasd_eckd.o
drivers/s390/block/dasd_eckd.c:1082:3: warning: 'snprintf' will always be truncated;
specified size is 1, but format string expands to at least 11 [-Wfortify-source]
1082 | snprintf(print_uid, sizeof(*print_uid),
| ^
drivers/s390/block/dasd_eckd.c:1087:3: warning: 'snprintf' will always be truncated;
specified size is 1, but format string expands to at least 10 [-Wfortify-source]
1087 | snprintf(print_uid, sizeof(*print_uid),
| ^
Fix this by moving and using the existing UID_STRLEN for the arrays
that are being written to. Also rename UID_STRLEN to DASD_UID_STRLEN
to clarify its scope.
Fixes:
|
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ec0e2dc810 |
VFIO updates for v6.6-rc1
- VFIO direct character device (cdev) interface support. This extracts the vfio device fd from the container and group model, and is intended to be the native uAPI for use with IOMMUFD. (Yi Liu) - Enhancements to the PCI hot reset interface in support of cdev usage. (Yi Liu) - Fix a potential race between registering and unregistering vfio files in the kvm-vfio interface and extend use of a lock to avoid extra drop and acquires. (Dmitry Torokhov) - A new vfio-pci variant driver for the AMD/Pensando Distributed Services Card (PDS) Ethernet device, supporting live migration. (Brett Creeley) - Cleanups to remove redundant owner setup in cdx and fsl bus drivers, and simplify driver init/exit in fsl code. (Li Zetao) - Fix uninitialized hole in data structure and pad capability structures for alignment. (Stefan Hajnoczi) -----BEGIN PGP SIGNATURE----- iQJPBAABCAA5FiEEQvbATlQL0amee4qQI5ubbjuwiyIFAmTvnDUbHGFsZXgud2ls bGlhbXNvbkByZWRoYXQuY29tAAoJECObm247sIsimEEP/AzG+VRcu5LfYbLGLe0z zB8ts6G7S78wXlmfN/LYi3v92XWvMMcm+vYF8oNAMfr1YL5sibWN6UtQfY1KCr7h nWKdQdqjajJ5yDDZnOFdhqHJGNfmZw6+fey8Z0j8zRI2oymK4DncWWX3g/7L1SNr 9tIexGJef+mOdAmC94yOut3YviAaZ+f95T/xrdXHzzoNr50DD0+PD6AJdKJfKggP vhiC/DAYH3Fofaa6tRasgWuKCYWdjZLR/kxgNpeEmW6kZnbq/dnzZ+kgn4HH1f9G 8p7UKVARR6FfG5aLheWu6Y9PDaKnfnqu8y/hobuE/ivXcmqqK+a6xSxrjgbVs8WJ 94SYnTBRoTlDJaKWa7GxqdgzJnV+s5ZyAgPhjzdi6mLTPWGzkuLhFWGtYL+LZAQ6 pNeZSM6CFBk+bva/xT0nNPCXxPh+/j/Y0G18FREj8aPFc03HrJQqz0RLydvTnoDz nX/by5KdzMSVSVLPr4uDMtAsgxsGqWiFcp7QMw1HhhlLWxqmYbA+mLZaqyMZUUOx 6b/P8WXT9P2I+qPVKWQ5CWyqpsEqm6P+72yg6LOM9kINvgwDhOa7cagMXIuMWYMH Rf97FL+K8p1eIy6AnvRHgFBMM5185uG+0YcJyVqtucDr/k8T/Om6ujAI6JbWtNe6 cLgaVAqKOYqCR4HC9bfVGSbd =eKSR -----END PGP SIGNATURE----- Merge tag 'vfio-v6.6-rc1' of https://github.com/awilliam/linux-vfio Pull VFIO updates from Alex Williamson: - VFIO direct character device (cdev) interface support. This extracts the vfio device fd from the container and group model, and is intended to be the native uAPI for use with IOMMUFD (Yi Liu) - Enhancements to the PCI hot reset interface in support of cdev usage (Yi Liu) - Fix a potential race between registering and unregistering vfio files in the kvm-vfio interface and extend use of a lock to avoid extra drop and acquires (Dmitry Torokhov) - A new vfio-pci variant driver for the AMD/Pensando Distributed Services Card (PDS) Ethernet device, supporting live migration (Brett Creeley) - Cleanups to remove redundant owner setup in cdx and fsl bus drivers, and simplify driver init/exit in fsl code (Li Zetao) - Fix uninitialized hole in data structure and pad capability structures for alignment (Stefan Hajnoczi) * tag 'vfio-v6.6-rc1' of https://github.com/awilliam/linux-vfio: (53 commits) vfio/pds: Send type for SUSPEND_STATUS command vfio/pds: fix return value in pds_vfio_get_lm_file() pds_core: Fix function header descriptions vfio: align capability structures vfio/type1: fix cap_migration information leak vfio/fsl-mc: Use module_fsl_mc_driver macro to simplify the code vfio/cdx: Remove redundant initialization owner in vfio_cdx_driver vfio/pds: Add Kconfig and documentation vfio/pds: Add support for firmware recovery vfio/pds: Add support for dirty page tracking vfio/pds: Add VFIO live migration support vfio/pds: register with the pds_core PF pds_core: Require callers of register/unregister to pass PF drvdata vfio/pds: Initial support for pds VFIO driver vfio: Commonize combine_ranges for use in other VFIO drivers kvm/vfio: avoid bouncing the mutex when adding and deleting groups kvm/vfio: ensure kvg instance stays around in kvm_vfio_group_add() docs: vfio: Add vfio device cdev description vfio: Compile vfio_group infrastructure optionally vfio: Move the IOMMU_CAP_CACHE_COHERENCY check in __vfio_register_dev() ... |
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acf00b5ef9 |
s390/airq: remove lsi_mask from airq_struct
Remove the field `lsi_mask` from `struct airq_struct` as it is not utilized for any adapter interrupt, other than setting it to the default value of 0xff. Because nobody is using this functionality, all it does is cost a little bit of time with each delivered adapter interrupt. Reviewed-by: Michael Mueller <mimu@linux.ibm.com> Tested-by: Michael Mueller <mimu@linux.ibm.com> Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Benjamin Block <bblock@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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789dd8cb1e |
s390/dcssblk: fix lockdep warning
dcssblk_remove_store() holds the dcssblk_devices_sem semaphore while calling del_gendisk(dev_info->gd), which in turn tries to acquire disk->open_mutex. Then there is dcssblk_release(), which is called with disk->open_mutex held, and tries to acquire dcssblk_devices_sem. Lockdep reports this as possible circular locking dependency (CPU0 = dcssblk_remove_store, CPU1 = dcssblk_release): [ 44.948865] Possible unsafe locking scenario: [ 44.948866] CPU0 CPU1 [ 44.948867] ---- ---- [ 44.948868] lock(&dcssblk_devices_sem); [ 44.948870] lock(&disk->open_mutex); [ 44.948872] lock(&dcssblk_devices_sem); [ 44.948874] lock(&disk->open_mutex); [ 44.948876] *** DEADLOCK *** In practice, this deadlock should not happen, since dcssblk_remove_store() checks for dev_info->use_count != 0 after acquiring dcssblk_devices_sem, and breaks out before calling del_gendisk(). dev_info->use_count will be decremented in dcssblk_release(), protected by dcssblk_devices_sem. Still there is no need for dcssblk_remove_store() to hold the dcssblk_devices_sem until after calling del_gendisk(), as this only protects dcssblk internal data. So fix the lockdep warning by releasing dcssblk_devices_sem earlier. Also move the segment_unload() loop up, similar to dcssblk_shared_store() error path, no need to do that after calling del_gendisk(). Also change dcssblk_shared_store() error path, where dcssblk_devices_sem was also released only after calling del_gendisk(), and a similar lockdep warning could be triggered (but also deadlock prevented by check for dev_info->use_count). Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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67ce50ce01 |
s390/monreader: fix virtual vs physical address confusion
Fix virtual vs physical address confusion (which currently are the same). Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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bd6c11bc43 |
Networking changes for 6.6.
Core ---- - Increase size limits for to-be-sent skb frag allocations. This allows tun, tap devices and packet sockets to better cope with large writes operations. - Store netdevs in an xarray, to simplify iterating over netdevs. - Refactor nexthop selection for multipath routes. - Improve sched class lifetime handling. - Add backup nexthop ID support for bridge. - Implement drop reasons support in openvswitch. - Several data races annotations and fixes. - Constify the sk parameter of routing functions. - Prepend kernel version to netconsole message. Protocols --------- - Implement support for TCP probing the peer being under memory pressure. - Remove hard coded limitation on IPv6 specific info placement inside the socket struct. - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per socket scaling factor. - Scaling-up the IPv6 expired route GC via a separated list of expiring routes. - In-kernel support for the TLS alert protocol. - Better support for UDP reuseport with connected sockets. - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR header size. - Get rid of additional ancillary per MPTCP connection struct socket. - Implement support for BPF-based MPTCP packet schedulers. - Format MPTCP subtests selftests results in TAP. - Several new SMC 2.1 features including unique experimental options, max connections per lgr negotiation, max links per lgr negotiation. BPF --- - Multi-buffer support in AF_XDP. - Add multi uprobe BPF links for attaching multiple uprobes and usdt probes, which is significantly faster and saves extra fds. - Implement an fd-based tc BPF attach API (TCX) and BPF link support on top of it. - Add SO_REUSEPORT support for TC bpf_sk_assign. - Support new instructions from cpu v4 to simplify the generated code and feature completeness, for x86, arm64, riscv64. - Support defragmenting IPv(4|6) packets in BPF. - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix perf+libbpf issue related to custom section handling. - Introduce bpf map element count and enable it for all program types. - Add a BPF hook in sys_socket() to change the protocol ID from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy. - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress. - Add uprobe support for the bpf_get_func_ip helper. - Check skb ownership against full socket. - Support for up to 12 arguments in BPF trampoline. - Extend link_info for kprobe_multi and perf_event links. Netfilter --------- - Speed-up process exit by aborting ruleset validation if a fatal signal is pending. - Allow NLA_POLICY_MASK to be used with BE16/BE32 types. Driver API ---------- - Page pool optimizations, to improve data locality and cache usage. - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need for raw ioctl() handling in drivers. - Simplify genetlink dump operations (doit/dumpit) providing them the common information already populated in struct genl_info. - Extend and use the yaml devlink specs to [re]generate the split ops. - Introduce devlink selective dumps, to allow SF filtering SF based on handle and other attributes. - Add yaml netlink spec for netlink-raw families, allow route, link and address related queries via the ynl tool. - Remove phylink legacy mode support. - Support offload LED blinking to phy. - Add devlink port function attributes for IPsec. New hardware / drivers ---------------------- - Ethernet: - Broadcom ASP 2.0 (72165) ethernet controller - MediaTek MT7988 SoC - Texas Instruments AM654 SoC - Texas Instruments IEP driver - Atheros qca8081 phy - Marvell 88Q2110 phy - NXP TJA1120 phy - WiFi: - MediaTek mt7981 support - Can: - Kvaser SmartFusion2 PCI Express devices - Allwinner T113 controllers - Texas Instruments tcan4552/4553 chips - Bluetooth: - Intel Gale Peak - Qualcomm WCN3988 and WCN7850 - NXP AW693 and IW624 - Mediatek MT2925 Drivers ------- - Ethernet NICs: - nVidia/Mellanox: - mlx5: - support UDP encapsulation in packet offload mode - IPsec packet offload support in eswitch mode - improve aRFS observability by adding new set of counters - extends MACsec offload support to cover RoCE traffic - dynamic completion EQs - mlx4: - convert to use auxiliary bus instead of custom interface logic - Intel - ice: - implement switchdev bridge offload, even for LAG interfaces - implement SRIOV support for LAG interfaces - igc: - add support for multiple in-flight TX timestamps - Broadcom: - bnxt: - use the unified RX page pool buffers for XDP and non-XDP - use the NAPI skb allocation cache - OcteonTX2: - support Round Robin scheduling HTB offload - TC flower offload support for SPI field - Freescale: - add XDP_TX feature support - AMD: - ionic: add support for PCI FLR event - sfc: - basic conntrack offload - introduce eth, ipv4 and ipv6 pedit offloads - ST Microelectronics: - stmmac: maximze PTP timestamping resolution - Virtual NICs: - Microsoft vNIC: - batch ringing RX queue doorbell on receiving packets - add page pool for RX buffers - Virtio vNIC: - add per queue interrupt coalescing support - Google vNIC: - add queue-page-list mode support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add port range matching tc-flower offload - permit enslavement to netdevices with uppers - Ethernet embedded switches: - Marvell (mv88e6xxx): - convert to phylink_pcs - Renesas: - r8A779fx: add speed change support - rzn1: enables vlan support - Ethernet PHYs: - convert mv88e6xxx to phylink_pcs - WiFi: - Qualcomm Wi-Fi 7 (ath12k): - extremely High Throughput (EHT) PHY support - RealTek (rtl8xxxu): - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU), RTL8192EU and RTL8723BU - RealTek (rtw89): - Introduce Time Averaged SAR (TAS) support - Connector: - support for event filtering Signed-off-by: Paolo Abeni <pabeni@redhat.com> -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmTt1ZoSHHBhYmVuaUBy ZWRoYXQuY29tAAoJECkkeY3MjxOkgFUP/REFaYWdWUvAzmWeezyx9dqgZMfSOjWq 9QvySiA94OAOcjIYkb7wfzQ5BBAZqaBQ/f8XqWwS1EDDDEBs8sP1cxmABKwW7Hsr qFRu2sOqLzKBk223d0jIgEocfQaFpGbF71gXoTlDivBjBi5UxWm9bF0XnbYWcKgO /QEvzNosi9uNdi85Fzmv62J6YzAdidEpwGsM7X2CfejwNRmStxAEg/NwvRR0Hyiq OJCo97omEgTRaUle8nc64PDx33u4h5kQ1BkaeHEv0rbE3hftFC2YPKn/InmqSFGz 6ew2xnrGPR37LCuAiCcIIv6yR7K0eu0iYJ7jXwZxBDqxGavEPuwWGBoCP6qFiitH ZLWhIrAUrdmSbySkTOCONhJ475qFAuQoYHYpZnX/bJZUHlSsb/9lwDJYJQGpVfd1 /daqJVSb7lhaifmNO1iNd/ibCIXq9zapwtkRwA897M8GkZBTsnVvazFld1Em+Se3 Bx6DSDUVBqVQ9fpZG2IAGD6odDwOzC1lF2IoceFvK9Ff6oE0psI+A0qNLMkHxZbW Qlo7LsNe53hpoCC+yHTfXX7e/X8eNt0EnCGOQJDusZ0Nr3K7H4LKFA0i8UBUK05n 4lKnnaSQW7GQgdofLWt103OMDR9GoDxpFsm7b1X9+AEk6Fz6tq50wWYeMZETUKYP DCW8VGFOZjZM =9CsR -----END PGP SIGNATURE----- Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "Core: - Increase size limits for to-be-sent skb frag allocations. This allows tun, tap devices and packet sockets to better cope with large writes operations - Store netdevs in an xarray, to simplify iterating over netdevs - Refactor nexthop selection for multipath routes - Improve sched class lifetime handling - Add backup nexthop ID support for bridge - Implement drop reasons support in openvswitch - Several data races annotations and fixes - Constify the sk parameter of routing functions - Prepend kernel version to netconsole message Protocols: - Implement support for TCP probing the peer being under memory pressure - Remove hard coded limitation on IPv6 specific info placement inside the socket struct - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per socket scaling factor - Scaling-up the IPv6 expired route GC via a separated list of expiring routes - In-kernel support for the TLS alert protocol - Better support for UDP reuseport with connected sockets - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR header size - Get rid of additional ancillary per MPTCP connection struct socket - Implement support for BPF-based MPTCP packet schedulers - Format MPTCP subtests selftests results in TAP - Several new SMC 2.1 features including unique experimental options, max connections per lgr negotiation, max links per lgr negotiation BPF: - Multi-buffer support in AF_XDP - Add multi uprobe BPF links for attaching multiple uprobes and usdt probes, which is significantly faster and saves extra fds - Implement an fd-based tc BPF attach API (TCX) and BPF link support on top of it - Add SO_REUSEPORT support for TC bpf_sk_assign - Support new instructions from cpu v4 to simplify the generated code and feature completeness, for x86, arm64, riscv64 - Support defragmenting IPv(4|6) packets in BPF - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix perf+libbpf issue related to custom section handling - Introduce bpf map element count and enable it for all program types - Add a BPF hook in sys_socket() to change the protocol ID from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress - Add uprobe support for the bpf_get_func_ip helper - Check skb ownership against full socket - Support for up to 12 arguments in BPF trampoline - Extend link_info for kprobe_multi and perf_event links Netfilter: - Speed-up process exit by aborting ruleset validation if a fatal signal is pending - Allow NLA_POLICY_MASK to be used with BE16/BE32 types Driver API: - Page pool optimizations, to improve data locality and cache usage - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need for raw ioctl() handling in drivers - Simplify genetlink dump operations (doit/dumpit) providing them the common information already populated in struct genl_info - Extend and use the yaml devlink specs to [re]generate the split ops - Introduce devlink selective dumps, to allow SF filtering SF based on handle and other attributes - Add yaml netlink spec for netlink-raw families, allow route, link and address related queries via the ynl tool - Remove phylink legacy mode support - Support offload LED blinking to phy - Add devlink port function attributes for IPsec New hardware / drivers: - Ethernet: - Broadcom ASP 2.0 (72165) ethernet controller - MediaTek MT7988 SoC - Texas Instruments AM654 SoC - Texas Instruments IEP driver - Atheros qca8081 phy - Marvell 88Q2110 phy - NXP TJA1120 phy - WiFi: - MediaTek mt7981 support - Can: - Kvaser SmartFusion2 PCI Express devices - Allwinner T113 controllers - Texas Instruments tcan4552/4553 chips - Bluetooth: - Intel Gale Peak - Qualcomm WCN3988 and WCN7850 - NXP AW693 and IW624 - Mediatek MT2925 Drivers: - Ethernet NICs: - nVidia/Mellanox: - mlx5: - support UDP encapsulation in packet offload mode - IPsec packet offload support in eswitch mode - improve aRFS observability by adding new set of counters - extends MACsec offload support to cover RoCE traffic - dynamic completion EQs - mlx4: - convert to use auxiliary bus instead of custom interface logic - Intel - ice: - implement switchdev bridge offload, even for LAG interfaces - implement SRIOV support for LAG interfaces - igc: - add support for multiple in-flight TX timestamps - Broadcom: - bnxt: - use the unified RX page pool buffers for XDP and non-XDP - use the NAPI skb allocation cache - OcteonTX2: - support Round Robin scheduling HTB offload - TC flower offload support for SPI field - Freescale: - add XDP_TX feature support - AMD: - ionic: add support for PCI FLR event - sfc: - basic conntrack offload - introduce eth, ipv4 and ipv6 pedit offloads - ST Microelectronics: - stmmac: maximze PTP timestamping resolution - Virtual NICs: - Microsoft vNIC: - batch ringing RX queue doorbell on receiving packets - add page pool for RX buffers - Virtio vNIC: - add per queue interrupt coalescing support - Google vNIC: - add queue-page-list mode support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add port range matching tc-flower offload - permit enslavement to netdevices with uppers - Ethernet embedded switches: - Marvell (mv88e6xxx): - convert to phylink_pcs - Renesas: - r8A779fx: add speed change support - rzn1: enables vlan support - Ethernet PHYs: - convert mv88e6xxx to phylink_pcs - WiFi: - Qualcomm Wi-Fi 7 (ath12k): - extremely High Throughput (EHT) PHY support - RealTek (rtl8xxxu): - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU), RTL8192EU and RTL8723BU - RealTek (rtw89): - Introduce Time Averaged SAR (TAS) support - Connector: - support for event filtering" * tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits) net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler net: stmmac: clarify difference between "interface" and "phy_interface" r8152: add vendor/device ID pair for D-Link DUB-E250 devlink: move devlink_notify_register/unregister() to dev.c devlink: move small_ops definition into netlink.c devlink: move tracepoint definitions into core.c devlink: push linecard related code into separate file devlink: push rate related code into separate file devlink: push trap related code into separate file devlink: use tracepoint_enabled() helper devlink: push region related code into separate file devlink: push param related code into separate file devlink: push resource related code into separate file devlink: push dpipe related code into separate file devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper devlink: push shared buffer related code into separate file devlink: push port related code into separate file devlink: push object register/unregister notifications into separate helpers inet: fix IP_TRANSPARENT error handling ... |
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e5b7ca09e9 |
s390 updates for 6.6 merge window
- Add vfio-ap support to pass-through crypto devices to secure execution guests - Add API ordinal 6 support to zcrypt_ep11misc device drive, which is required to handle key generate and key derive (e.g. secure key to protected key) correctly - Add missing secure/has_secure sysfs files for the case where it is not possible to figure where a system has been booted from. Existing user space relies on that these files are always present - Fix DCSS block device driver list corruption, caused by incorrect error handling - Convert virt_to_pfn() and pfn_to_virt() from defines to static inline functions to enforce type checking - Cleanups, improvements, and minor fixes to the kernel mapping setup - Fix various virtual vs physical address confusions - Move pfault code to separate file, since it has nothing to do with regular fault handling - Move s390 documentation to Documentation/arch/ like it has been done for other architectures already - Add HAVE_FUNCTION_GRAPH_RETVAL support - Factor out the s390_hypfs filesystem and add a new config option for it. The filesystem is deprecated and as soon as all users are gone it can be removed some time in the not so near future - Remove support for old CEX2 and CEX3 crypto cards from zcrypt device driver - Add support for user-defined certificates: receive user-defined certificates with a diagnose call and provide them via 'cert_store' keyring to user space - Couple of other small fixes and improvements all over the place -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEECMNfWEw3SLnmiLkZIg7DeRspbsIFAmTrqNYACgkQIg7DeRsp bsKkUBAApWXr3WCJA2tige34AnFwmskx4sBxl/fgwcwJrC55fED1jKWaiXOM6isv P+hqavZnks3gXZdYcD3kxXkNMh+fPNWw7BAL35J5Gu1VShA/jlbTC6ZrvUO3t+Fy NsdLvBDbNDdyUzQF7w0Xb0jyIxqhJTRyhLfR5oXES63FHomv2F/vofu4jWR/q+cc F9mcnoDeN4zLdssdvl6WtPX4nEY9RpG0QOh67drnxuq+8v7sL8gKN4ti94Rp6vhs g4NhNs9xgRIPoOcX2KlSIdFqO9P12jSXZq0G4HcOp8UGQvgU/mS+UG3pQwV3ZJLS 3/kUJZ4/CwQa1xUFtPGP1/4AngGNOnhT9FCD4KrqjDkRZmLsd5RvURe6L1zQ3vbZ KnX7q0Otx4xRVYPlbHb9aP+tC7f3Q10ytBAps616qZoA/2SMss2BLZiiPBpCCvDp L+9dRhBGYCP2PSe6H/qGQFfMW+uY7QF+NDcDAT5mX1lS8OVrGJxqM7Q+sY2pMLGo 5nR16LvM9g6W/ZnsVn0+BWg4CgaPMi+PMfMPxs/o9RG+/0d1AJx1aLSiHdP1pXog 8/Wg4GaaJ27S4Ers0JUmH7VDO+QkkLvAArstjk8l59r1XslWiBP5USebkxtgu6EQ ehAh0+oa432ALq8Rn1FK/X+pWFumbTVf8OPwR8YEjDbeTPIBCqg= =ewd9 -----END PGP SIGNATURE----- Merge tag 's390-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Heiko Carstens: - Add vfio-ap support to pass-through crypto devices to secure execution guests - Add API ordinal 6 support to zcrypt_ep11misc device drive, which is required to handle key generate and key derive (e.g. secure key to protected key) correctly - Add missing secure/has_secure sysfs files for the case where it is not possible to figure where a system has been booted from. Existing user space relies on that these files are always present - Fix DCSS block device driver list corruption, caused by incorrect error handling - Convert virt_to_pfn() and pfn_to_virt() from defines to static inline functions to enforce type checking - Cleanups, improvements, and minor fixes to the kernel mapping setup - Fix various virtual vs physical address confusions - Move pfault code to separate file, since it has nothing to do with regular fault handling - Move s390 documentation to Documentation/arch/ like it has been done for other architectures already - Add HAVE_FUNCTION_GRAPH_RETVAL support - Factor out the s390_hypfs filesystem and add a new config option for it. The filesystem is deprecated and as soon as all users are gone it can be removed some time in the not so near future - Remove support for old CEX2 and CEX3 crypto cards from zcrypt device driver - Add support for user-defined certificates: receive user-defined certificates with a diagnose call and provide them via 'cert_store' keyring to user space - Couple of other small fixes and improvements all over the place * tag 's390-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (66 commits) s390/pci: use builtin_misc_device macro to simplify the code s390/vfio-ap: make sure nib is shared KVM: s390: export kvm_s390_pv*_is_protected functions s390/uv: export uv_pin_shared for direct usage s390/vfio-ap: check for TAPQ response codes 0x35 and 0x36 s390/vfio-ap: handle queue state change in progress on reset s390/vfio-ap: use work struct to verify queue reset s390/vfio-ap: store entire AP queue status word with the queue object s390/vfio-ap: remove upper limit on wait for queue reset to complete s390/vfio-ap: allow deconfigured queue to be passed through to a guest s390/vfio-ap: wait for response code 05 to clear on queue reset s390/vfio-ap: clean up irq resources if possible s390/vfio-ap: no need to check the 'E' and 'I' bits in APQSW after TAPQ s390/ipl: refactor deprecated strncpy s390/ipl: fix virtual vs physical address confusion s390/zcrypt_ep11misc: support API ordinal 6 with empty pin-blob s390/paes: fix PKEY_TYPE_EP11_AES handling for secure keyblobs s390/pkey: fix PKEY_TYPE_EP11_AES handling for sysfs attributes s390/pkey: fix PKEY_TYPE_EP11_AES handling in PKEY_VERIFYKEY2 IOCTL s390/pkey: fix PKEY_TYPE_EP11_AES handling in PKEY_KBLOB2PROTK[23] ... |
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511fb5bafe |
v6.6-vfs.super
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZOXpbgAKCRCRxhvAZXjc oi8PAQCtXelGZHmTcmevsO8p4Qz7hFpkonZ/TnxKf+RdnlNgPgD+NWi+LoRBpaAj xk4z8SqJaTTP4WXrG5JZ6o7EQkUL8gE= =2e9I -----END PGP SIGNATURE----- Merge tag 'v6.6-vfs.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull superblock updates from Christian Brauner: "This contains the super rework that was ready for this cycle. The first part changes the order of how we open block devices and allocate superblocks, contains various cleanups, simplifications, and a new mechanism to wait on superblock state changes. This unblocks work to ultimately limit the number of writers to a block device. Jan has already scheduled follow-up work that will be ready for v6.7 and allows us to restrict the number of writers to a given block device. That series builds on this work right here. The second part contains filesystem freezing updates. Overview: The generic superblock changes are rougly organized as follows (ignoring additional minor cleanups): (1) Removal of the bd_super member from struct block_device. This was a very odd back pointer to struct super_block with unclear rules. For all relevant places we have other means to get the same information so just get rid of this. (2) Simplify rules for superblock cleanup. Roughly, everything that is allocated during fs_context initialization and that's stored in fs_context->s_fs_info needs to be cleaned up by the fs_context->free() implementation before the superblock allocation function has been called successfully. After sget_fc() returned fs_context->s_fs_info has been transferred to sb->s_fs_info at which point sb->kill_sb() if fully responsible for cleanup. Adhering to these rules means that cleanup of sb->s_fs_info in fill_super() is to be avoided as it's brittle and inconsistent. Cleanup shouldn't be duplicated between sb->put_super() as sb->put_super() is only called if sb->s_root has been set aka when the filesystem has been successfully born (SB_BORN). That complexity should be avoided. This also means that block devices are to be closed in sb->kill_sb() instead of sb->put_super(). More details in the lower section. (3) Make it possible to lookup or create a superblock before opening block devices There's a subtle dependency on (2) as some filesystems did rely on fill_super() to be called in order to correctly clean up sb->s_fs_info. All these filesystems have been fixed. (4) Switch most filesystem to follow the same logic as the generic mount code now does as outlined in (3). (5) Use the superblock as the holder of the block device. We can now easily go back from block device to owning superblock. (6) Export and extend the generic fs_holder_ops and use them as holder ops everywhere and remove the filesystem specific holder ops. (7) Call from the block layer up into the filesystem layer when the block device is removed, allowing to shut down the filesystem without risk of deadlocks. (8) Get rid of get_super(). We can now easily go back from the block device to owning superblock and can call up from the block layer into the filesystem layer when the device is removed. So no need to wade through all registered superblock to find the owning superblock anymore" Link: https://lore.kernel.org/lkml/20230824-prall-intakt-95dbffdee4a0@brauner/ * tag 'v6.6-vfs.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (47 commits) super: use higher-level helper for {freeze,thaw} super: wait until we passed kill super super: wait for nascent superblocks super: make locking naming consistent super: use locking helpers fs: simplify invalidate_inodes fs: remove get_super block: call into the file system for ioctl BLKFLSBUF block: call into the file system for bdev_mark_dead block: consolidate __invalidate_device and fsync_bdev block: drop the "busy inodes on changed media" log message dasd: also call __invalidate_device when setting the device offline amiflop: don't call fsync_bdev in FDFMTBEG floppy: call disk_force_media_change when changing the format block: simplify the disk_force_media_change interface nbd: call blk_mark_disk_dead in nbd_clear_sock_ioctl xfs use fs_holder_ops for the log and RT devices xfs: drop s_umount over opening the log and RT devices ext4: use fs_holder_ops for the log device ext4: drop s_umount over opening the log device ... |
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6daf5a6824 |
Merge branch 'vfio-ap' into features
Tony Krowiak says: =================== This patch series is for the changes required in the vfio_ap device driver to facilitate pass-through of crypto devices to a secure execution guest. In particular, it is critical that no data from the queues passed through to the SE guest is leaked when the guest is destroyed. There are also some new response codes returned from the PQAP(ZAPQ) and PQAP(TAPQ) commands that have been added to the architecture in support of pass-through of crypto devices to SE guests; these need to be accounted for when handling the reset of queues. =================== Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |