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* Merge tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds2013-03-032-1/+20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull NFS client bugfixes from Trond Myklebust: "We've just concluded another Connectathon interoperability testing week, and so here are the fixes for the bugs that were discovered: - Don't allow NFS silly-renamed files to be deleted - Don't start the retransmission timer when out of socket space - Fix a couple of pnfs-related Oopses. - Fix one more NFSv4 state recovery deadlock - Don't loop forever when LAYOUTGET returns NFS4ERR_LAYOUTTRYLATER" * tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: SUNRPC: One line comment fix NFSv4.1: LAYOUTGET EDELAY loops timeout to the MDS SUNRPC: add call to get configured timeout PNFS: set the default DS timeout to 60 seconds NFSv4: Fix another open/open_recovery deadlock nfs: don't allow nfs_find_actor to match inodes of the wrong type NFSv4.1: Hold reference to layout hdr in layoutget pnfs: fix resend_to_mds for directio SUNRPC: Don't start the retransmission timer when out of socket space NFS: Don't allow NFS silly-renamed files to be deleted, no signal
| * SUNRPC: One line comment fixTrond Myklebust2013-03-031-1/+1
| | | | | | | | | | Reported-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * SUNRPC: add call to get configured timeoutWeston Andros Adamson2013-03-011-0/+15
| | | | | | | | | | | | | | Returns the configured timeout for the xprt of the rpc client. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * SUNRPC: Don't start the retransmission timer when out of socket spaceTrond Myklebust2013-02-221-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | If the socket is full, we're better off just waiting until it empties, or until the connection is broken. The reason why we generally don't want to time out is that the call to xprt->ops->release_xprt() will trigger a connection reset, which isn't helpful... Let's make an exception for soft RPC calls, since they have to provide timeout guarantees. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
* | Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2013-03-0112-101/+162
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd changes from J Bruce Fields: "Miscellaneous bugfixes, plus: - An overhaul of the DRC cache by Jeff Layton. The main effect is just to make it larger. This decreases the chances of intermittent errors especially in the UDP case. But we'll need to watch for any reports of performance regressions. - Containerized nfsd: with some limitations, we now support per-container nfs-service, thanks to extensive work from Stanislav Kinsbursky over the last year." Some notes about conflicts, since there were *two* non-data semantic conflicts here: - idr_remove_all() had been added by a memory leak fix, but has since become deprecated since idr_destroy() does it for us now. - xs_local_connect() had been added by this branch to make AF_LOCAL connections be synchronous, but in the meantime Trond had changed the calling convention in order to avoid a RCU dereference. There were a couple of more obvious actual source-level conflicts due to the hlist traversal changes and one just due to code changes next to each other, but those were trivial. * 'for-3.9' of git://linux-nfs.org/~bfields/linux: (49 commits) SUNRPC: make AF_LOCAL connect synchronous nfsd: fix compiler warning about ambiguous types in nfsd_cache_csum svcrpc: fix rpc server shutdown races svcrpc: make svc_age_temp_xprts enqueue under sv_lock lockd: nlmclnt_reclaim(): avoid stack overflow nfsd: enable NFSv4 state in containers nfsd: disable usermode helper client tracker in container nfsd: use proper net while reading "exports" file nfsd: containerize NFSd filesystem nfsd: fix comments on nfsd_cache_lookup SUNRPC: move cache_detail->cache_request callback call to cache_read() SUNRPC: remove "cache_request" argument in sunrpc_cache_pipe_upcall() function SUNRPC: rework cache upcall logic SUNRPC: introduce cache_detail->cache_request callback NFS: simplify and clean cache library NFS: use SUNRPC cache creation and destruction helper for DNS cache nfsd4: free_stid can be static nfsd: keep a checksum of the first 256 bytes of request sunrpc: trim off trailing checksum before returning decrypted or integrity authenticated buffer sunrpc: fix comment in struct xdr_buf definition ...
| * | SUNRPC: make AF_LOCAL connect synchronousJ. Bruce Fields2013-02-281-8/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It doesn't appear that anyone actually needs to connect asynchronously. Also, using a workqueue for the connect means we lose the namespace information from the original process. This is a problem since there's no way to explicitly pass in a filesystem namespace for resolution of an AF_LOCAL address. Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | svcrpc: fix rpc server shutdown racesJ. Bruce Fields2013-02-172-34/+32Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rewrite server shutdown to remove the assumption that there are no longer any threads running (no longer true, for example, when shutting down the service in one network namespace while it's still running in others). Do that by doing what we'd do in normal circumstances: just CLOSE each socket, then enqueue it. Since there may not be threads to handle the resulting queued xprts, also run a simplified version of the svc_recv() loop run by a server to clean up any closed xprts afterwards. Cc: stable@kernel.org Tested-by: Jason Tibbitts <tibbs@math.uh.edu> Tested-by: Paweł Sikora <pawel.sikora@agmk.net> Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | svcrpc: make svc_age_temp_xprts enqueue under sv_lockJ. Bruce Fields2013-02-171-13/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | svc_age_temp_xprts expires xprts in a two-step process: first it takes the sv_lock and moves the xprts to expire off their server-wide list (sv_tempsocks or sv_permsocks) to a local list. Then it drops the sv_lock and enqueues and puts each one. I see no reason for this: svc_xprt_enqueue() will take sp_lock, but the sv_lock and sp_lock are not otherwise nested anywhere (and documentation at the top of this file claims it's correct to nest these with sp_lock inside.) Cc: stable@kernel.org Tested-by: Jason Tibbitts <tibbs@math.uh.edu> Tested-by: Paweł Sikora <pawel.sikora@agmk.net> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | SUNRPC: move cache_detail->cache_request callback call to cache_read()Stanislav Kinsbursky2013-02-151-12/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reason to move cache_request() callback call from sunrpc_cache_pipe_upcall() to cache_read() is that this garantees, that cache access will be done userspace process context (only userspace process have proper root context). This is required for NFSd support in container: svc_export_request() (which is cache_request callback) calls d_path(), which, in turn, traverse dentry up to current->fs->root. Kernel threads always have global root, while container have be in "root jail" - i.e. have it's own nested root. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | SUNRPC: remove "cache_request" argument in sunrpc_cache_pipe_upcall() functionStanislav Kinsbursky2013-02-151-7/+3Star
| | | | | | | | | | | | | | | | | | | | | | | | Passing this pointer is redundant since it's stored on cache_detail structure, which is also passed to sunrpc_cache_pipe_upcall () function. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | SUNRPC: rework cache upcall logicStanislav Kinsbursky2013-02-153-23/+7Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For most of SUNRPC caches (except NFS DNS cache) cache_detail->cache_upcall is redundant since all that it's implementations are doing is calling sunrpc_cache_pipe_upcall() with proper function address argument. Cache request function address is now stored on cache_detail structure and thus all the code can be simplified. Now, for those cache details, which doesn't have cache_upcall callback (the only one, which still has is nfs_dns_resolve_template) sunrpc_cache_pipe_upcall will be called instead. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | SUNRPC: introduce cache_detail->cache_request callbackStanislav Kinsbursky2013-02-152-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | This callback will allow to simplify upcalls in further patches in this series. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | sunrpc: trim off trailing checksum before returning decrypted or integrity ↵Jeff Layton2013-02-083-2/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | authenticated buffer When GSSAPI integrity signatures are in use, or when we're using GSSAPI privacy with the v2 token format, there is a trailing checksum on the xdr_buf that is returned. It's checked during the authentication stage, and afterward nothing cares about it. Ordinarily, it's not a problem since the XDR code generally ignores it, but it will be when we try to compute a checksum over the buffer to help prevent XID collisions in the duplicate reply cache. Fix the code to trim off the checksums after verifying them. Note that in unwrap_integ_data, we must avoid trying to reverify the checksum if the request was deferred since it will no longer be present when it's revisited. Signed-off-by: Jeff Layton <jlayton@redhat.com>
| * | sunrpc: move address copy/cmp/convert routines and prototypes from clnt.h to ↵Jeff Layton2013-02-056-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | addr.h These routines are used by server and client code, so having them in a separate header would be best. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | sunrpc: Fix lockd sleeping until timeoutAndriy Skulysh2013-01-241-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a race in enqueueing thread to a pool and waking up a thread. lockd doesn't wake up on reception of lock granted callback if svc_wake_up() is called before lockd's thread is added to a pool. Signed-off-by: Andriy Skulysh <Andriy_Skulysh@xyratex.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | svcrpc: silence "unused variable" warning in !RPC_DEBUG caseJ. Bruce Fields2013-01-241-0/+4
| | | | | | | | | | | | Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| * | nfsd: Remove write permission from file contentYanchuan Nian2013-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The write function doesn't be implemented in file content, and it's meaningless to write data into this file directly. Remove write permission from it. Signed-off-by: Yanchuan Nian <ycnian@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2013-03-0110-574/+749
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "A few groups of patches here. Alex has been hard at work improving the RBD code, layout groundwork for understanding the new formats and doing layering. Most of the infrastructure is now in place for the final bits that will come with the next window. There are a few changes to the data layout. Jim Schutt's patch fixes some non-ideal CRUSH behavior, and a set of patches from me updates the client to speak a newer version of the protocol and implement an improved hashing strategy across storage nodes (when the server side supports it too). A pair of patches from Sam Lang fix the atomicity of open+create operations. Several patches from Yan, Zheng fix various mds/client issues that turned up during multi-mds torture tests. A final set of patches expose file layouts via virtual xattrs, and allow the policies to be set on directories via xattrs as well (avoiding the awkward ioctl interface and providing a consistent interface for both kernel mount and ceph-fuse users)." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (143 commits) libceph: add support for HASHPSPOOL pool flag libceph: update osd request/reply encoding libceph: calculate placement based on the internal data types ceph: update support for PGID64, PGPOOL3, OSDENC protocol features ceph: update "ceph_features.h" libceph: decode into cpu-native ceph_pg type libceph: rename ceph_pg -> ceph_pg_v1 rbd: pass length, not op for osd completions rbd: move rbd_osd_trivial_callback() libceph: use a do..while loop in con_work() libceph: use a flag to indicate a fault has occurred libceph: separate non-locked fault handling libceph: encapsulate connection backoff libceph: eliminate sparse warnings ceph: eliminate sparse warnings in fs code rbd: eliminate sparse warnings libceph: define connection flag helpers rbd: normalize dout() calls rbd: barriers are hard rbd: ignore zero-length requests ...
| * | | libceph: add support for HASHPSPOOL pool flagSage Weil2013-02-271-13/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The legacy behavior adds the pgid seed and pool together as the input for CRUSH. That is problematic because each pool's PGs end up mapping to the same OSDs: 1.5 == 2.4 == 3.3 == ... Instead, if the HASHPSPOOL flag is set, we has the ps and pool together and feed that into CRUSH. This ensures that two adjacent pools will map to an independent pseudorandom set of OSDs. Advertise our support for this via a protocol feature flag. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
| * | | libceph: update osd request/reply encodingSage Weil2013-02-272-77/+174
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new version of the encoding for osd requests and replies. In the process, update the way we are tracking request ops and reply lengths and results in the struct ceph_osd_request. Update the rbd and fs/ceph users appropriately. The main changes are: - we keep pointers into the request memory for fields we need to update each time the request is sent out over the wire - we keep information about the result in an array in the request struct where the users can easily get at it. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
| * | | libceph: calculate placement based on the internal data typesSage Weil2013-02-272-17/+12Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using the old ceph_object_layout struct, update our internal ceph_calc_object_layout method to use the ceph_pg type. This allows us to pass the full 32-bit precision of the pgid.seed to the callers. It also allows some callers to avoid reaching into the request structures for the struct ceph_object_layout fields. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
| * | | ceph: update support for PGID64, PGPOOL3, OSDENC protocol featuresSage Weil2013-02-273-83/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support (and require) the PGID64, PGPOOL3, and OSDENC protocol features. These have been present in ceph.git since v0.42, Feb 2012. Require these features to simplify support; nobody is running older userspace. Note that the new request and reply encoding is still not in place, so the new code is not yet functional. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
| * | | libceph: decode into cpu-native ceph_pg typeSage Weil2013-02-273-42/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always decode data into our cpu-native ceph_pg type that has the correct field widths. Limit any remaining uses of ceph_pg_v1 to dealing with the legacy protocol. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
| * | | libceph: rename ceph_pg -> ceph_pg_v1Sage Weil2013-02-272-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename the old version this type to distinguish it from the new version. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
| * | | libceph: use a do..while loop in con_work()Alex Elder2013-02-251-41/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This just converts a manually-implemented loop into a do..while loop in con_work(). It also moves handling of EAGAIN inside the blocks where it's already been determined an error code was returned. Also update a few dout() calls near the affected code for consistency. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| * | | libceph: use a flag to indicate a fault has occurredAlex Elder2013-02-251-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This just rearranges the logic in con_work() a little bit so that a flag is used to indicate a fault has occurred. This allows both the fault and non-fault case to be handled the same way and avoids a couple of nearly consecutive gotos. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| * | | libceph: separate non-locked fault handlingAlex Elder2013-02-251-19/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An error occurring on a ceph connection is treated as a fault, causing the connection to be reset. The initial part of this fault handling has to be done while holding the connection mutex, but it must then be dropped for the last part. Separate the part of this fault handling that executes without the lock into its own function, con_fault_finish(). Move the call to this new function, as well as call that drops the connection mutex, into ceph_fault(). Rename that function con_fault() to reflect that it's only handling the connection part of the fault handling. The motivation for this was a warning from sparse about the locking being done here. Rearranging things this way keeps all the mutex manipulation within ceph_fault(), and this stops sparse from complaining. This partially resolves: http://tracker.ceph.com/issues/4184 Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| * | | libceph: encapsulate connection backoffAlex Elder2013-02-251-13/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Collect the code that tests for and implements a backoff delay for a ceph connection into a new function, ceph_backoff(). Make the debug output messages in that part of the code report things consistently by reporting a message in the socket closed case, and by making the one for PREOPEN state report the connection pointer like the rest. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| * | | libceph: eliminate sparse warningsAlex Elder2013-02-253-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminate most of the problems in the libceph code that cause sparse to issue warnings. - Convert functions that are never referenced externally to have static scope. - Pass NULL rather than 0 for a pointer argument in one spot in ceph_monc_delete_snapid() This partially resolves: http://tracker.ceph.com/issues/4184 Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| * | | libceph: define connection flag helpersAlex Elder2013-02-251-29/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define and use functions that encapsulate operations performed on a connection's flags. This resolves: http://tracker.ceph.com/issues/4234 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| * | | Merge branch 'testing' of github.com:ceph/ceph-client into into linux-3.8-cephAlex Elder2013-02-207-286/+274Star
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| | * | | libceph: drop return value from page vector copy routinesAlex Elder2013-02-201-8/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The return values provided for ceph_copy_to_page_vector() and ceph_copy_from_page_vector() serve no purpose, so get rid of them. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: use void pointers in page vector functionsAlex Elder2013-02-201-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The functions used for working with ceph page vectors are defined with char pointers, but they're really intended to operate on untyped data. Change the types of these function parameters to (void *) to reflect this. (Note that the functions now assume void pointer arithmetic works like arithmetic on char pointers.) Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: allow STAT osd operationsAlex Elder2013-02-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for CEPH_OSD_OP_STAT operations in the osd client and in rbd. This operation sends no data to the osd; everything required is encoded in identity of the target object. The result will be ENOENT if the object doesn't exist. If it does exist and no other error occurs the server returns the size and last modification time of the target object as output data (in little endian format). The size is a 64 bit unsigned and the time is ceph_timespec structure (two unsigned 32-bit integers, representing a seconds and nanoseconds value). This resolves: http://tracker.ceph.com/issues/4007 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: simplify data length calculationAlex Elder2013-02-201-8/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify the way the data length recorded in a message header is calculated in ceph_osdc_build_request(). Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: remove dead code in osd_req_encode_op()Alex Elder2013-02-181-26/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In osd_req_encode_op() there are a few cases that handle osd opcodes that are never used in the kernel. The presence of this code gives the impression it's correct (which really can't be assumed), and may impose some unnecessary restrictions on some upcoming refactoring of this code. So delete this effectively dead code, and report uses of the previously handled cases as unsupported. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: report defined but unsupported osd opsAlex Elder2013-02-181-0/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If osd_req_encode_op() is given any opcode it doesn't recognize it reports an error. This patch fleshes out that routine to distinguish between well-defined but unsupported values and values that are simply bogus. This and the next commit are related to: http://tracker.ceph.com/issues/4126 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: update ceph_osd_op_name()Alex Elder2013-02-181-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update ceph_osd_op_name() to include the newly-added definitions in "rados.h", and to match its counterpart in the user space code. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: add ceph_osd_state_name()Alex Elder2013-02-181-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the definition of ceph_osd_state_name(), to match its counterpart in user space. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: kill ceph_osdc_wait_event()Alex Elder2013-02-181-18/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no actual users of ceph_osdc_wait_event(). This would have been one-shot events, but we no longer support those so just get rid of this function. Since this leaves nothing else that waits for the completion of an event, we can get rid of the completion in a struct ceph_osd_event. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: kill ceph_osdc_create_event() "one_shot" parameterAlex Elder2013-02-181-6/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is only one caller of ceph_osdc_create_event(), and it provides 0 as its "one_shot" argument. Get rid of that argument and just use 0 in its place. Replace the code in handle_watch_notify() that executes if one_shot is nonzero in the event with a BUG_ON() call. While modifying "osd_client.c", give handle_watch_notify() static scope. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: kill ceph_calc_raw_layout()Alex Elder2013-02-181-45/+32Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no caller of ceph_calc_raw_layout() outside of libceph, so there's no need to export from the module. Furthermore, there is only one caller, in calc_layout(), and it is not much more than a simple wrapper for that function. So get rid of ceph_calc_raw_layout() and embed it instead within calc_layout(). While touching "osd_client.c", get rid of the unnecessary forward declaration of __send_request(). Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libdeph: don't export ceph_osdc_init() or ceph_osdc_stop()Alex Elder2013-02-181-2/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only callers of ceph_osdc_init() and ceph_osdc_stop() ceph_create_client() and ceph_destroy_client() (respectively) and they are in the same kernel module as those two functions. There's therefore no need to export those interfaces, so don't. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: lock outside send_queued()Alex Elder2013-02-181-10/+9Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two of the three callers of the osd client's send_queued() function already hold the osd client mutex and drop it before the call. Change send_queued() so it assumes the caller holds the mutex, and update all callers accordingly. Rename it __send_queued() to match the convention used elsewhere in the file with respect to the lock. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | ceph: kill ceph_osdc_new_request() "num_reply" parameterAlex Elder2013-02-181-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "num_reply" parameter to ceph_osdc_new_request() is never used inside that function, so get rid of it. Note that ceph_sync_write() passes 2 for that argument, while all other callers pass 1. It doesn't matter, but perhaps someone should verify this doesn't indicate a problem. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | ceph: kill ceph_osdc_writepages() "flags" parameterAlex Elder2013-02-181-4/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is only one caller of ceph_osdc_writepages(), and it always passes 0 as its "flags" argument. Get rid of that argument and replace its use in ceph_osdc_writepages() with 0. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | ceph: kill ceph_osdc_writepages() "dosync" parameterAlex Elder2013-02-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is only one caller of ceph_osdc_writepages(), and it always passes 0 as its "dosync" argument. Get rid of that argument and replace its use in ceph_osdc_writepages() with 0. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | ceph: kill ceph_osdc_writepages() "nofail" parameterAlex Elder2013-02-181-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is only one caller of ceph_osdc_writepages(), and it always passes the value true as its "nofail" argument. Get rid of that argument and replace its use in ceph_osdc_writepages() with the constant value true. This and a number of cleanup patches that follow resolve: http://tracker.ceph.com/issues/4126 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | libceph: don't require r_num_pages for bio requestsAlex Elder2013-02-141-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a check in the completion path for osd requests that ensures the number of pages allocated is enough to hold the amount of incoming data expected. For bio requests coming from rbd the "number of pages" is not really meaningful (although total length would be). So stop requiring that nr_pages be supplied for bio requests. This is done by checking whether the pages pointer is null before checking the value of nr_pages. Note that this value is passed on to the messenger, but there it's only used for debugging--it's never used for validation. While here, change another spot that used r_pages in a debug message inappropriately, and also invalidate the r_con_filling_msg pointer after dropping a reference to it. This resolves: http://tracker.ceph.com/issues/3875 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
| | * | | rbd: don't take extra bio reference for osd clientAlex Elder2013-02-142-5/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, if the OSD client finds an osd request has had a bio list attached to it, it drops a reference to it (or rather, to the first entry on that list) when the request is released. The code that added that reference (i.e., the rbd client) is therefore required to take an extra reference to that first bio structure. The osd client doesn't really do anything with the bio pointer other than transfer it from the osd request structure to outgoing (for writes) and ingoing (for reads) messages. So it really isn't the right place to be taking or dropping references. Furthermore, the rbd client already holds references to all bio structures it passes to the osd client, and holds them until the request is completed. So there's no need for this extra reference whatsoever. So remove the bio_put() call in ceph_osdc_release_request(), as well as its matching bio_get() call in rbd_osd_req_create(). This change could lead to a crash if old libceph.ko was used with new rbd.ko. Add a compatibility check at rbd initialization time to avoid this possibilty. This resolves: http://tracker.ceph.com/issues/3798 and http://tracker.ceph.com/issues/3799 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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