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2023-02-02ceph: move mount state enum to super.hXiubo Li1-10/+0
These flags are only used in ceph filesystem in fs/ceph, so just move it to the place it should be. Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Venky Shankar <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-10-04libceph: drop last_piece flag from ceph_msg_data_cursorJeff Layton1-3/+1
ceph_msg_data_next is always passed a NULL pointer for this field. Some of the "next" operations look at it in order to determine the length, but we can just take the min of the data on the page or cursor->resid. Signed-off-by: Jeff Layton <[email protected]> Reviewed-by: Xiubo Li <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-08-03libceph: clean up ceph_osdc_start_request prototypeJeff Layton1-3/+2
This function always returns 0, and ignores the nofail boolean. Drop the nofail argument, make the function void return and fix up the callers. Signed-off-by: Jeff Layton <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-08-03ceph: fix incorrect old_size length in ceph_mds_request_argsXiubo Li1-3/+3
The 'old_size' is a __le64 type since birth, not sure why the kclient incorrectly switched it to __le32. This change is okay won't break anything because union will always allocate more memory than the 'open' member needed. Rename 'file_replication' to 'pool' as ceph did. Though this 'open' struct may never be used in kclient in future, it's confusing when going through the ceph code. Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-08-03ceph: fix the incorrect comment for the ceph_mds_caps structXiubo Li1-1/+1
The incorrect comment is misleading. Acutally the last members in ceph_mds_caps strcut is a union for none export and export bodies. Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-08-03ceph: prevent a client from exceeding the MDS maximum xattr sizeLuís Henriques1-0/+1
The MDS tries to enforce a limit on the total key/values in extended attributes. However, this limit is enforced only if doing a synchronous operation (MDS_OP_SETXATTR) -- if we're buffering the xattrs, the MDS doesn't have a chance to enforce these limits. This patch adds support for decoding the xattrs maximum size setting that is distributed in the mdsmap. Then, when setting an xattr, the kernel client will revert to do a synchronous operation if that maximum size is exceeded. While there, fix a dout() that would trigger a printk warning: [ 98.718078] ------------[ cut here ]------------ [ 98.719012] precision 65536 too large [ 98.719039] WARNING: CPU: 1 PID: 3755 at lib/vsprintf.c:2703 vsnprintf+0x5e3/0x600 ... Link: https://tracker.ceph.com/issues/55725 Signed-off-by: Luís Henriques <[email protected]> Reviewed-by: Xiubo Li <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-05-18libceph: fix potential use-after-free on linger ping and resendsIlya Dryomov1-0/+3
request_reinit() is not only ugly as the comment rightfully suggests, but also unsafe. Even though it is called with osdc->lock held for write in all cases, resetting the OSD request refcount can still race with handle_reply() and result in use-after-free. Taking linger ping as an example: handle_timeout thread handle_reply thread down_read(&osdc->lock) req = lookup_request(...) ... finish_request(req) # unregisters up_read(&osdc->lock) __complete_request(req) linger_ping_cb(req) # req->r_kref == 2 because handle_reply still holds its ref down_write(&osdc->lock) send_linger_ping(lreq) req = lreq->ping_req # same req # cancel_linger_request is NOT # called - handle_reply already # unregistered request_reinit(req) WARN_ON(req->r_kref != 1) # fires request_init(req) kref_init(req->r_kref) # req->r_kref == 1 after kref_init ceph_osdc_put_request(req) kref_put(req->r_kref) # req->r_kref == 0 after kref_put, req is freed <further req initialization/use> !!! This happens because send_linger_ping() always (re)uses the same OSD request for watch ping requests, relying on cancel_linger_request() to unregister it from the OSD client and rip its messages out from the messenger. send_linger() does the same for watch/notify registration and watch reconnect requests. Unfortunately cancel_request() doesn't guarantee that after it returns the OSD client would be completely done with the OSD request -- a ref could still be held and the callback (if specified) could still be invoked too. The original motivation for request_reinit() was inability to deal with allocation failures in send_linger() and send_linger_ping(). Switching to using osdc->req_mempool (currently only used by CephFS) respects that and allows us to get rid of request_reinit(). Cc: [email protected] Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Xiubo Li <[email protected]> Acked-by: Jeff Layton <[email protected]>
2022-03-01ceph: do not release the global snaprealm until unmountingXiubo Li1-1/+2
The global snaprealm would be created and then destroyed immediately every time when updating it. URL: https://tracker.ceph.com/issues/54362 Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-03-01ceph: remove incorrect and unused CEPH_INO_DOTDOT macroXiubo Li1-1/+0
Ceph have removed this macro and the 0x3 will be use for global dummy snaprealm. Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-03-01ceph: move to a dedicated slabcache for ceph_cap_snapXiubo Li1-0/+1
There could be huge number of capsnaps around at any given time. On x86_64 the structure is 248 bytes, which will be rounded up to 256 bytes by kzalloc. Move this to a dedicated slabcache to save 8 bytes for each. [ jlayton: use kmem_cache_zalloc ] Signed-off-by: Xiubo Li <[email protected]> Signed-off-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-03-01ceph: add getvxattr opMilind Changire1-0/+1
Problem: Some directory vxattrs (e.g. ceph.dir.pin.random) are governed by information that isn't necessarily shared with the client. Add support for the new GETVXATTR operation, which allows the client to query the MDS directly for vxattrs. When the client is queried for a vxattr that doesn't have a special handler, have it issue a GETVXATTR to the MDS directly. Solution: Adds new getvxattr op to fetch ceph.dir.pin*, ceph.dir.layout* and ceph.file.layout* vxattrs. If the entire layout for a dir or a file is being set, then it is expected that the layout be set in standard JSON format. Individual field value retrieval is not wrapped in JSON. The JSON format also applies while setting the vxattr if the entire layout is being set in one go. As a temporary measure, setting a vxattr can also be done in the old format. The old format will be deprecated in the future. URL: https://tracker.ceph.com/issues/51062 Signed-off-by: Milind Changire <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-02-02libceph: optionally use bounce buffer on recv path in crc modeIlya Dryomov2-0/+2
Both msgr1 and msgr2 in crc mode are zero copy in the sense that message data is read from the socket directly into the destination buffer. We assume that the destination buffer is stable (i.e. remains unchanged while it is being read to) though. Otherwise, CRC errors ensue: libceph: read_partial_message 0000000048edf8ad data crc 1063286393 != exp. 228122706 libceph: osd1 (1)192.168.122.1:6843 bad crc/signature libceph: bad data crc, calculated 57958023, expected 1805382778 libceph: osd2 (2)192.168.122.1:6876 integrity error, bad crc Introduce rxbounce option to enable use of a bounce buffer when receiving message data. In particular this is needed if a mapped image is a Windows VM disk, passed to QEMU. Windows has a system-wide "dummy" page that may be mapped into the destination buffer (potentially more than once into the same buffer) by the Windows Memory Manager in an effort to generate a single large I/O [1][2]. QEMU makes a point of preserving overlap relationships when cloning I/O vectors, so krbd gets exposed to this behaviour. [1] "What Is Really in That MDL?" https://docs.microsoft.com/en-us/previous-versions/windows/hardware/design/dn614012(v=vs.85) [2] https://blogs.msmvps.com/kernelmustard/2005/05/04/dummy-pages/ URL: https://bugzilla.redhat.com/show_bug.cgi?id=1973317 Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Jeff Layton <[email protected]>
2022-02-02libceph: make recv path in secure mode work the same as send pathIlya Dryomov1-0/+4
The recv path of secure mode is intertwined with that of crc mode. While it's slightly more efficient that way (the ciphertext is read into the destination buffer and decrypted in place, thus avoiding two potentially heavy memory allocations for the bounce buffer and the corresponding sg array), it isn't really amenable to changes. Sacrifice that edge and align with the send path which always uses a full-sized bounce buffer (currently there is no other way -- if the kernel crypto API ever grows support for streaming (piecewise) en/decryption for GCM [1], we would be able to easily take advantage of that on both sides). [1] https://lore.kernel.org/all/[email protected]/ Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Jeff Layton <[email protected]>
2022-01-20Merge tag 'ceph-for-5.17-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds2-2/+3
Pull ceph updates from Ilya Dryomov: "The highlight is the new mount "device" string syntax implemented by Venky Shankar. It solves some long-standing issues with using different auth entities and/or mounting different CephFS filesystems from the same cluster, remounting and also misleading /proc/mounts contents. The existing syntax of course remains to be maintained. On top of that, there is a couple of fixes for edge cases in quota and a new mount option for turning on unbuffered I/O mode globally instead of on a per-file basis with ioctl(CEPH_IOC_SYNCIO)" * tag 'ceph-for-5.17-rc1' of git://github.com/ceph/ceph-client: ceph: move CEPH_SUPER_MAGIC definition to magic.h ceph: remove redundant Lsx caps check ceph: add new "nopagecache" option ceph: don't check for quotas on MDS stray dirs ceph: drop send metrics debug message rbd: make const pointer spaces a static const array ceph: Fix incorrect statfs report for small quota ceph: mount syntax module parameter doc: document new CephFS mount device syntax ceph: record updated mon_addr on remount ceph: new device mount syntax libceph: rename parse_fsid() to ceph_parse_fsid() and export libceph: generalize addr/ip parsing based on delimiter
2022-01-15mm: allow !GFP_KERNEL allocations for kvmallocMichal Hocko1-1/+0
Support for GFP_NO{FS,IO} and __GFP_NOFAIL has been implemented by previous patches so we can allow the support for kvmalloc. This will allow some external users to simplify or completely remove their helpers. GFP_NOWAIT semantic hasn't been supported so far but it hasn't been explicitly documented so let's add a note about that. ceph_kvmalloc is the first helper to be dropped and changed to kvmalloc. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Michal Hocko <[email protected]> Reviewed-by: Uladzislau Rezki (Sony) <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Dave Chinner <[email protected]> Cc: Ilya Dryomov <[email protected]> Cc: Jeff Layton <[email protected]> Cc: Neil Brown <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2022-01-13libceph: rename parse_fsid() to ceph_parse_fsid() and exportVenky Shankar1-0/+1
... as it is too generic. also, use __func__ when logging rather than hardcoding the function name. Signed-off-by: Venky Shankar <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2022-01-13libceph: generalize addr/ip parsing based on delimiterVenky Shankar2-2/+2
... and remove hardcoded function name in ceph_parse_ips(). [ idryomov: delim parameter, drop CEPH_ADDR_PARSE_DEFAULT_DELIM ] Signed-off-by: Venky Shankar <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2021-11-08libceph, ceph: move ceph_osdc_copy_from() into cephfs codeLuís Henriques1-11/+8
This patch moves ceph_osdc_copy_from() function out of libceph code into cephfs. There are no other users for this function, and there is the need (in another patch) to access internal ceph_osd_request struct members. Signed-off-by: Luís Henriques <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2021-11-08ceph: don't rely on error_string to validate blocklisted session.Kotresh HR1-0/+2
The "error_string" in the metadata of MClientSession is being parsed by kclient to validate whether the session is blocklisted. The "error_string" is for humans and shouldn't be relied on it. Hence added the flag to MClientsession to indicate the session is blocklisted. [ jlayton: minor formatting cleanup ] URL: https://tracker.ceph.com/issues/47450 Signed-off-by: Kotresh HR <[email protected]> Signed-off-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2021-09-02ceph: flush mdlog before umountingXiubo Li1-0/+1
Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2021-06-24libceph: set global_id as soon as we get an auth ticketIlya Dryomov1-1/+3
Commit 61ca49a9105f ("libceph: don't set global_id until we get an auth ticket") delayed the setting of global_id too much. It is set only after all tickets are received, but in pre-nautilus clusters an auth ticket and the service tickets are obtained in separate steps (for a total of three MAuth replies). When the service tickets are requested, global_id is used to build an authorizer; if global_id is still 0 we never get them and fail to establish the session. Moving the setting of global_id into protocol implementations. This way global_id can be set exactly when an auth ticket is received, not sooner nor later. Fixes: 61ca49a9105f ("libceph: don't set global_id until we get an auth ticket") Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Jeff Layton <[email protected]>
2021-06-24libceph: don't pass result into ac->ops->handle_reply()Ilya Dryomov1-1/+1
There is no result to pass in msgr2 case because authentication failures are reported through auth_bad_method frame and in MAuth case an error is returned immediately. Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Jeff Layton <[email protected]>
2021-02-16libceph: deprecate [no]cephx_require_signatures optionsIlya Dryomov1-4/+3
These options were introduced in 3.19 with support for message signing and are rather useless, as explained in commit a51983e4dd2d ("libceph: add nocephx_sign_messages option"). Deprecate them. In case there is someone out there with a cluster that lacks support for MSG_AUTH feature (very unlikely but has to be considered since we haven't formally raised the bar from argonaut to bobtail yet), make nocephx_sign_messages also waive MSG_AUTH requirement. This is probably how it should have been done in the first place -- if we aren't going to sign, requiring the signing feature makes no sense. Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Jeff Layton <[email protected]>
2020-12-28libceph: add __maybe_unused to DEFINE_MSGR2_FEATUREIlya Dryomov1-2/+2
Avoid -Wunused-const-variable warnings for "make W=1". Reported-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: drop ceph_auth_{create,update}_authorizer()Ilya Dryomov1-6/+0
Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph, ceph: implement msgr2.1 protocol (crc and secure modes)Ilya Dryomov6-6/+231
Implement msgr2.1 wire protocol, available since nautilus 14.2.11 and octopus 15.2.5. msgr2.0 wire protocol is not implemented -- it has several security, integrity and robustness issues and therefore considered deprecated. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: introduce connection modes and ms_mode optionIlya Dryomov3-2/+13
msgr2 supports two connection modes: crc (plain) and secure (on-wire encryption). Connection mode is picked by server based on input from client. Introduce ms_mode option: ms_mode=legacy - msgr1 (default) ms_mode=crc - crc mode, if denied fail ms_mode=secure - secure mode, if denied fail ms_mode=prefer-crc - crc mode, if denied agree to secure mode ms_mode=prefer-secure - secure mode, if denied agree to crc mode ms_mode affects all connections, we don't separate connections to mons like it's done in userspace with ms_client_mode vs ms_mon_client_mode. For now the default is legacy, to be flipped to prefer-crc after some time. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph, rbd: ignore addr->type while comparing in some casesIlya Dryomov1-1/+8
For libceph, this ensures that libceph instance sharing (share option) continues to work. For rbd, this avoids blocklisting alive lock owners (locker addr is always LEGACY, while watcher addr is ANY in nautilus). Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph, ceph: get and handle cluster maps with addrvecsIlya Dryomov4-6/+15
In preparation for msgr2, make the cluster send us maps with addrvecs including both LEGACY and MSGR2 addrs instead of a single LEGACY addr. This means advertising support for SERVER_NAUTILUS and also some older features: SERVER_MIMIC, MONENC and MONNAMES. MONNAMES and MONENC are actually pre-argonaut, we just never updated ceph_monmap_decode() for them. Decoding is unconditional, see commit 23c625ce3065 ("libceph: assume argonaut on the server side"). SERVER_MIMIC doesn't bear any meaning for the kernel client. Since ceph_decode_entity_addrvec() is guarded by encoding version checks (and in msgr2 case it is guarded implicitly by the fact that server is speaking msgr2), we assume MSG_ADDR2 for it. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: drop ac->ops->name fieldIlya Dryomov1-2/+0
Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: amend cephx init_protocol() and build_request()Ilya Dryomov1-0/+1
In msgr2, initial authentication happens with an exchange of msgr2 control frames -- MAuth message and struct ceph_mon_request_header aren't used. Make that optional. Stop reporting cephx protocol as "x". Use "cephx" instead. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph, ceph: incorporate nautilus cephx changesIlya Dryomov1-4/+12
- request service tickets together with auth ticket. Currently we get auth ticket via CEPHX_GET_AUTH_SESSION_KEY op and then request service tickets via CEPHX_GET_PRINCIPAL_SESSION_KEY op in a separate message. Since nautilus, desired service tickets are shared togther with auth ticket in CEPHX_GET_AUTH_SESSION_KEY reply. - propagate session key and connection secret, if any. In preparation for msgr2, update handle_reply() and verify_authorizer_reply() auth ops to propagate session key and connection secret. Since nautilus, if secure mode is negotiated, connection secret is shared either in CEPHX_GET_AUTH_SESSION_KEY reply (for mons) or in a final authorizer reply (for osds and mdses). Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: move msgr1 protocol specific fields to its own structIlya Dryomov1-35/+41
A couple whitespace fixups, no functional changes. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: move msgr1 protocol implementation to its own fileIlya Dryomov1-0/+1
A pure move, no other changes. Note that ceph_tcp_recv{msg,page}() and ceph_tcp_send{msg,page}() helpers are also moved. msgr2 will bring its own, more efficient, variants based on iov_iter. Switching msgr1 to them was considered but decided against to avoid subtle regressions. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: separate msgr1 protocol implementationIlya Dryomov1-0/+8
In preparation for msgr2, define internal messenger <-> protocol interface (as opposed to external messenger <-> client interface, which is struct ceph_connection_operations) consisting of try_read(), try_write(), revoke(), revoke_incoming(), opened(), reset_session() and reset_protocol() ops. The semantics are exactly the same as they are now. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: export remaining protocol independent infrastructureIlya Dryomov1-1/+38
In preparation for msgr2, make all protocol independent functions in messenger.c global. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: export zero_pageIlya Dryomov1-0/+1
In preparation for msgr2, make zero_page global. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: rename and export con->flags bitsIlya Dryomov1-1/+12
In preparation for msgr2, move the defines to the header file. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: rename and export con->state statesIlya Dryomov1-1/+11
In preparation for msgr2, rename msgr1 specific states and move the defines to the header file. Also drop state transition comments. They don't cover all possible transitions (e.g. NEGOTIATING -> STANDBY, etc) and currently do more harm than good. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: make con->state an intIlya Dryomov1-1/+1
unsigned long is a leftover from when con->state used to be a set of bits managed with set_bit(), clear_bit(), etc. Save a bit of memory. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: drop msg->ack_stamp fieldIlya Dryomov1-1/+0
It is set in process_ack() but never used. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: lower exponential backoff delayIlya Dryomov1-2/+2
The current setting allows the backoff to climb up to 5 minutes. This is too high -- it becomes hard to tell whether the client is stuck on something or just in backoff. In userspace, ms_max_backoff is defaulted to 15 seconds. Let's do the same. Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14ceph: implement updated ceph_mds_request_head structureJeff Layton1-1/+31
When we added the btime feature in mainline ceph, we had to extend struct ceph_mds_request_args so that it could be set. Implement the same in the kernel client. Rename ceph_mds_request_head with a _old extension, and a union ceph_mds_request_args_ext to allow for the extended size of the new header format. Add the appropriate code to handle both formats in struct create_request_message and key the behavior on whether the peer supports CEPH_FEATURE_FS_BTIME. The gid_list field in the payload is now populated from the saved credential. For now, we don't add any support for setting the btime via setattr, but this does enable us to add that in the future. [ idryomov: break unnecessarily long lines ] Signed-off-by: Jeff Layton <[email protected]> Reviewed-by: Xiubo Li <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14ceph: set osdmap epoch for setxattrXiubo Li1-0/+1
When setting the file/dir layout, it may need data pool info. So in mds server, it needs to check the osdmap. At present, if mds doesn't find the data pool specified, it will try to get the latest osdmap. Now if pass the osd epoch for setxattr, the mds server can only check this epoch of osdmap. URL: https://tracker.ceph.com/issues/48504 Signed-off-by: Xiubo Li <[email protected]> Reviewed-by: Jeff Layton <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14libceph: remove unused port macrosLiu, Changcheng1-9/+0
1. monitor's default port is defined by CEPH_MON_PORT 2. CEPH_PORT_START and CEPH_PORT_LAST are not needed. Signed-off-by: Changcheng Liu <[email protected]> Reviewed-by: Ilya Dryomov <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2020-12-14ceph: add new RECOVER mount_state when recovering sessionJeff Layton1-0/+1
When recovering a session (a'la recover_session=clean), we want to do all of the operations that we do on a forced umount, but changing the mount state to SHUTDOWN is can cause queued MDS requests to fail when the session comes back. Most of those can idle until the session is recovered in this situation. Reserve SHUTDOWN state for forced umount, and make a new RECOVER state for the forced reconnect situation. Change several tests for equality with SHUTDOWN to test for that or RECOVER. Signed-off-by: Jeff Layton <[email protected]> Reviewed-by: Xiubo Li <[email protected]> Reviewed-by: "Yan, Zheng" <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]>
2020-10-12libceph: fix ENTITY_NAME format suggestionIlya Dryomov1-1/+1
Signed-off-by: Ilya Dryomov <[email protected]>
2020-10-12libceph, rbd, ceph: "blacklist" -> "blocklist"Ilya Dryomov2-2/+2
Signed-off-by: Ilya Dryomov <[email protected]>
2020-10-12libceph: multiple workspaces for CRUSH computationsIlya Dryomov1-2/+12
Replace a global map->crush_workspace (protected by a global mutex) with a list of workspaces, up to the number of CPUs + 1. This is based on a patch from Robin Geuze <[email protected]>. Robin and his team have observed a 10-20% increase in IOPS on all queue depths and lower CPU usage as well on a high-end all-NVMe 100GbE cluster. Signed-off-by: Ilya Dryomov <[email protected]>
2020-08-24libceph: add __maybe_unused to DEFINE_CEPH_FEATUREIlya Dryomov1-4/+4
Avoid -Wunused-const-variable warnings for "make W=1". Reported-by: Leon Romanovsky <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]>
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