linux/net
Linus Torvalds 0c59ae1290 AFS fileserver rotation fix
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Merge tag 'afs-fix-rotation-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull afs updates from David Howells:
 "The majority of the patches are aimed at fixing and improving the AFS
  filesystem's rotation over server IP addresses, but there are also
  some fixes from Oleg Nesterov for the use of read_seqbegin_or_lock().

   - Fix fileserver probe handling so that the next round of probes
     doesn't break ongoing server/address rotation by clearing all the
     probe result tracking. This could occasionally cause the rotation
     algorithm to drop straight through, give a 'successful' result
     without actually emitting any RPC calls, leaving the reply buffer
     in an undefined state.

     Instead, detach the probe results into a separate struct and
     allocate a new one each time we start probing and update the
     pointer to it. Probes are also sent in order of address preference
     to try and improve the chance that the preferred one will complete
     first.

   - Fix server rotation so that it uses configurable address
     preferences across on the probes that have completed so far than
     ranking them by RTT as the latter doesn't necessarily give the best
     route. The preference list can be altered by writing into
     /proc/net/afs/addr_prefs.

   - Fix the handling of Read-Only (and Backup) volume callbacks as
     there is one per volume, not one per file, so if someone performs a
     command that, say, offlines the volume but doesn't change it, when
     it comes back online we don't spam the server with a status fetch
     for every vnode we're using. Instead, check the Creation timestamp
     in the VolSync record when prompted by a callback break.

   - Handle volume regression (ie. a RW volume being restored from a
     backup) by scrubbing all cache data for that volume. This is
     detected from the VolSync creation timestamp.

   - Adjust abort handling and abort -> error mapping to match better
     with what other AFS clients do.

   - Fix offline and busy volume state handling as they only apply to
     individual server instances and not entire volumes and the rotation
     algorithm should go and look at other servers if available. Also
     make it sleep briefly before each retry if all the volume instances
     are unavailable"

* tag 'afs-fix-rotation-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (40 commits)
  afs: trace: Log afs_make_call(), including server address
  afs: Fix offline and busy message emission
  afs: Fix fileserver rotation
  afs: Overhaul invalidation handling to better support RO volumes
  afs: Parse the VolSync record in the reply of a number of RPC ops
  afs: Don't leave DONTUSE/NEWREPSITE servers out of server list
  afs: Fix comment in afs_do_lookup()
  afs: Apply server breaks to mmap'd files in the call processor
  afs: Move the vnode/volume validity checking code into its own file
  afs: Defer volume record destruction to a workqueue
  afs: Make it possible to find the volumes that are using a server
  afs: Combine the endpoint state bools into a bitmask
  afs: Keep a record of the current fileserver endpoint state
  afs: Dispatch vlserver probes in priority order
  afs: Dispatch fileserver probes in priority order
  afs: Mark address lists with configured priorities
  afs: Provide a way to configure address priorities
  afs: Remove the unimplemented afs_cmp_addr_list()
  afs: Add some more info to /proc/net/afs/servers
  rxrpc: Create a procfile to display outstanding client conn bundles
  ...
2024-01-10 10:11:01 -08:00
..
6lowpan
9p net: 9p: avoid freeing uninit memory in p9pdu_vreadf 2023-12-13 05:44:30 +09:00
802 net: fill in MODULE_DESCRIPTION()s under net/802* 2023-10-28 11:29:28 +01:00
8021q net: check vlan filter feature in vlan_vids_add_by_dev() and vlan_vids_del_by_dev() 2023-12-19 13:13:56 +01:00
appletalk appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-14 12:02:45 +01:00
atm atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-12 13:14:08 +01:00
ax25 net: implement lockless SO_PRIORITY 2023-10-01 19:09:54 +01:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-24 10:51:39 -07:00
bluetooth Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg 2023-12-15 11:54:18 -05:00
bpf bpf: Add __bpf_kfunc_{start,end}_defs macros 2023-11-01 22:33:53 -07:00
bpfilter
bridge netfilter: nf_conntrack_bridge: initialize err to 0 2023-11-14 16:16:21 +01:00
caif
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-10-12 17:07:34 -07:00
ceph This update includes the following changes: 2023-11-02 16:15:30 -10:00
core Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
dcb
dccp dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-02 12:56:03 +01:00
devlink netlink: specs: devlink: add forgotten port function caps enum values 2023-11-01 22:13:43 -07:00
dns_resolver keys, dns: Fix missing size check of V1 server-list header 2023-12-26 13:15:49 -08:00
dsa net: dsa: Rename IFLA_DSA_MASTER to IFLA_DSA_CONDUIT 2023-10-24 13:08:14 -07:00
ethernet
ethtool ethtool: don't propagate EOPNOTSUPP from dumps 2023-11-29 08:43:27 -08:00
handshake Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-10-26 13:46:28 -07:00
hsr hsr: Prevent use after free in prp_create_tagged_frame() 2023-11-01 22:26:04 -07:00
ieee802154 sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
ife net: sched: ife: fix potential use-after-free 2023-12-15 10:50:18 +00:00
ipv4 vfs-6.8.iov_iter 2024-01-08 11:43:04 -08:00
ipv6 Revert "net: ipv6/addrconf: clamp preferred_lft to the minimum required" 2024-01-02 14:58:46 -08:00
iucv s390: use control register bit defines 2023-09-19 13:26:57 +02:00
kcm net: kcm: fill in MODULE_DESCRIPTION() 2023-11-08 18:17:44 -08:00
key
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-10-05 13:16:47 -07:00
l3mdev
lapb
llc llc: verify mac len before reading mac header 2023-11-01 22:21:32 -07:00
mac80211 wifi: mac80211: add/remove driver debugfs entries as appropriate 2023-12-19 13:08:00 +01:00
mac802154
mctp mctp: perform route lookups under a RCU read-side lock 2023-10-10 19:43:22 -07:00
mpls
mptcp mptcp: prevent tcp diag from closing listener subflows 2024-01-02 16:12:47 -08:00
ncsi Revert ncsi: Propagate carrier gain/loss events to the NCSI controller 2023-11-15 09:59:44 +00:00
netfilter netfilter: nft_immediate: drop chain reference counter on error 2024-01-03 11:17:17 +01:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2023-12-07 14:23:12 -05:00
netlink drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2023-12-07 09:54:02 -08:00
netrom net: implement lockless SO_PRIORITY 2023-10-01 19:09:54 +01:00
nfc nfc: Do not send datagram if socket state isn't LLCP_BOUND 2023-12-25 07:29:04 +00:00
nsh
openvswitch net/sched: act_ct: Always fill offloading tuple iifidx 2023-11-08 17:47:08 -08:00
packet packet: Move reference count in packet_sock to atomic_long_t 2023-12-04 14:45:04 -08:00
phonet
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-07 09:54:02 -08:00
qrtr net: qrtr: ns: Return 0 if server port is not present 2024-01-01 18:41:29 +00:00
rds net: prevent address rewrite in kernel_bind() 2023-10-01 19:31:29 +01:00
rfkill net: rfkill: gpio: set GPIO direction 2023-12-12 10:14:57 +01:00
rose net/rose: fix races in rose_kill_by_device() 2023-12-15 11:59:53 +00:00
rxrpc rxrpc: Create a procfile to display outstanding client conn bundles 2023-12-24 15:22:56 +00:00
sched net: sched: em_text: fix possible memory leak in em_text_destroy() 2024-01-01 13:08:15 +00:00
sctp net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules 2023-11-19 20:09:13 +00:00
smc Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
strparser
sunrpc nfsd-6.7 fixes: 2023-12-20 11:16:50 -08:00
switchdev
tipc net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules 2023-11-19 20:09:13 +00:00
tls net: tls, update curr on splice as well 2023-12-07 09:52:28 -08:00
unix bpf, sockmap: af_unix stream sockets need to hold ref for pair sock 2023-11-30 00:25:16 +01:00
vmw_vsock vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space() 2023-12-13 17:59:08 -08:00
wireless wifi: cfg80211: fix certs build to not depend on file order 2023-12-14 09:11:51 +01:00
x25 net: implement lockless SO_PRIORITY 2023-10-01 19:09:54 +01:00
xdp xsk: Skip polling event check for unbound socket 2023-12-05 13:43:43 +01:00
xfrm Including fixes from netfilter and bpf. 2023-11-09 17:09:35 -08:00
compat.c file: stop exposing receive_fd_user() 2023-12-12 14:24:14 +01:00
devres.c
Kconfig net: add skb_segment kunit test 2023-10-11 10:39:01 +01:00
Kconfig.debug
Makefile
socket.c vfs-6.8.iov_iter 2024-01-08 11:43:04 -08:00
sysctl_net.c