- 21 Aug, 2016 40 commits
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John L. Hammond authored
Remove unused OBD functions: oti_alloc_cookies(), oti_free_cookies(), class_observe_import(), class_unobserve_import(), md_is_subdir(), md_readpage(), obdo2fid(), fid2obdo(). Remove several unused, get-only, and set-only structure members. Signed-off-by:
John L. Hammond <john.hammond@intel.com> Signed-off-by:
James Simmons <uja.ornl@gmail.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-on: http://review.whamcloud.com/9784Reviewed-by:
Bob Glossman <bob.glossman@intel.com> Reviewed-by:
Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by:
Andreas Dilger <andreas.dilger@intel.com> Signed-off-by:
James Simmons <jsimmons@infradead.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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wang di authored
Add OBD_CONNECT_DIR_STRIPE to tell if the client supports striped dir, so only new client (>= 2.6) can access striped directory. Signed-off-by:
wang di <di.wang@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4843 Reviewed-on: http://review.whamcloud.com/10773Reviewed-by:
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Jian Yu authored
This patch fixes the following compile error by removing the dead codes: "error: 'xxx_readpages' defined but not used". Now that we have md_read_page functionality we can remove all the *_readpage implementations. Signed-off-by:
Jian Yu <jian.yu@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4669 Reviewed-on: http://review.whamcloud.com/9810Reviewed-by:
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wang di authored
Move directory entries cache from llite to MDC, so client side dir stripe will use independent hash function(in LMV), which does not need to be tightly coupled with the backend storage dir-entry hash function. With striped directory, it will be 2-tier hash, LMV calculate hash value according to the name and hash-type in layout, then each MDT will store these entry in disk by its own hash. Signed-off-by:
Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by:
Oleg Drokin <oleg.drokin@intel.com> Signed-off-by:
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wang di authored
All the code needed to implement read_page. This will eventually replace lmv_readpage. Signed-off-by:
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Oleg Drokin authored
if the name already exists, but we don't have write permissions in the parent, force talking to the MDS to determine what more sensical error code to return. This also happens to fix matlab and other such programs that assume that EEXIST is the only valid error code for mkdir of an existing directory. Signed-off-by:
Oleg Drokin <green@linuxhacker.ru> Signed-off-by:
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Al Viro authored
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Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Al Viro authored
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Doug Oucharek authored
In current code, when a CON RACE occurs, the passive side will let the node with the higher NID value win the race. We have a field case where a node can have a "stuck" connection which never goes away and is the trigger of a never-ending loop of re-connections. This patch introduces a counter to how many times a connection in a connecting state has been the cause of a CON RACE rejection. After 20 times (constant MAX_CONN_RACES_BEFORE_ABORT), we assume the connection is stuck and let the other side (with lower NID) win. Signed-off-by:
Doug Oucharek <doug.s.oucharek@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7646 Reviewed-on: http://review.whamcloud.com/19430Reviewed-by:
Amir Shehata <amir.shehata@intel.com> Reviewed-by:
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Liang Zhen authored
kiblnd_check_sends() takes conn::ibc_lock at the begin and release this lock at the end, this is inefficient because most use-case needs to explicitly release ibc_lock before caling this function. This patches changes it to kiblnd_check_sends_locked() and avoid unnecessary lock dances. Signed-off-by:
Liang Zhen <liang.zhen@intel.com> Signed-off-by:
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Alexander Boyko authored
IB network may lose last connection handshake packet. This problem isn't Lustre specific and described at https://oss.oracle.com/pipermail/rds-devel/2007-December/000271.html for example. Solution is to make conection established if any packet is received for it. Signed-off-by:
Alexander Boyko <alexander.boyko@seagate.com> Signed-off-by:
Alexey Lyashkov <alexey.lyashkov@seagate.com> Seagate-bug-id: MRP-2883 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8303 Reviewed-on: http://review.whamcloud.com/20874Reviewed-by:
Alexander Zarochentsev <alexander.zarochentsev@seagate.com> Reviewed-by:
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Doug Oucharek authored
In fix http://review.whamcloud.com/#/c/19614/, the call to lnet_ni_decref() should have followed the routines which are using the NI. This patch correct that. Signed-off-by:
James Simmons <uja.ornl@yahoo.com> Reviewed-by:
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Doug Oucharek authored
There is a case in lnet_parse() where we discover that LNet is shutting down but we continue to use the NI when we drop the message and end up calling ko2iblnd_check_send_locked() which tries to allocate from the Tx pool which has been cleaned up already. This triggers a NULL pointer dereference. This fix just returns from lnet_parse() when we disover LNet is shutting down. Signed-off-by:
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wang di authored
Cache the maximum allowed pages supported by the llite layer. This value will be used in the mdc and lmv layer. Signed-off-by:
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wang di authored
This patch adds md_read_page which is a new more flexiable api that will replace md_readpage. Signed-off-by:
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Dmitry Eremin authored
Fixed comparison between signed and unsigned indexes. Signed-off-by:
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John L. Hammond authored
Add a const void *h_owner member to struct portals_handle. Add a const void *owner parameter to class_handle2object() which must be matched by the h_owner member of the handle in addition to the cookie. Signed-off-by:
Fan Yong <fan.yong@intel.com> Reviewed-by:
Mike Pershin <mike.pershin@intel.com> Signed-off-by:
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James Simmons authored
The purpose of this asssert to was to ensure lustre was properly managing its posix_acl access. This test is invalid due to the VFS layer also taking references on the posix_acl. In reality their is no simple way to detect this class of mistakes. Signed-off-by:
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James Simmons authored
During inspection of another patch Dan Carpenter noticed some one off errors in lustre_id.h. Fix the condition test for OBIF_MAX_OID. Signed-off-by:
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Hongchao Zhang authored
When RPC size or the max RPCs in flight is increased, the actual limit might be max_dirty_mb. This patch automatically increases the max_dirty_mb value at connection time and when the related values are tuned manually by proc file system. this patch also changes the unit of "cl_dirty" and "cl_dirty_max" in client_obd from byte to page. Signed-off-by:
Li Xi <lixi@ddn.com> Signed-off-by:
Hongchao Zhang <hongchao.zhang@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4933 Reviewed-on: http://review.whamcloud.com/10446Reviewed-by:
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Fan Yong authored
When creating a striped directory, the master object saves the slave objects (or shards) as internal sub-directories. The sub-directory's name is composed of ${shard_FID}:${shard_idx}. With the name, we can easily to know what the shard is and where it should be. On the other hand, we need to store some information related with the striped directory, such as magic, hash type, shards count, and so on. That is the LMV EA (header). We do NOT store the FID of each shard in the LMV EA. Instead, when we need the shards' FIDs (such as readdir() on client-side), we can build the entrie LMV EA on the MDT (in RAM) by iterating the sub-directory entries that are contained in the master object of the striped directroy. Above mechanism can simplify the striped directory create operation. For very large striped directory, logging the FIDs array in the LMV EA will be trouble. It also simplify the LFSCK for verifying striped directory, because it reduces the inconsistency sources. Another fixing is about the lmv_master_fid in master LMV EA header, it is redundant information, and may become one of the inconsistency sources. So replace it with two __u64 padding fields. Signed-off-by:Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by:
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Andriy Skulysh authored
Exit condition from UNREGISTERING phase is releasing of both reply and bulk buffers. Call ptlrpc_unregister_bulk() if ptlrpc_unregister_reply() wasn't completed in async mode before switching to UNREGISTERING phase. Signed-off-by:
Andriy Skulysh <Andriy_Skulysh@xyratex.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5259 Xyratex-bug-id: MRP-1960 Reviewed-on: http://review.whamcloud.com/10846Reviewed-by:
Ann Koehler <amk@cray.com> Reviewed-by:
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wang di authored
For unknown hash type, LMV should try all stripes to locate the name entry. But it will only for lookup and unlink, i.e. we can only list and unlink entries under striped dir with unknown hash type. Signed-off-by:
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Mikhail Pershin authored
The llog context id table cannot be shrunk easily because that will cause index shifting and incompatibility between old client and new server and vice versa. Patch moves llog_ctxt_id table to the lustre_idl.h because this is wire protocol data, these values are added to the wirecheck. Signed-off-by:
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Lai Siyao authored
Add OBD_CONNECT_UNLINK_CLOSE flag for interop, once this is supported, client packs file handle in unlink RPC, and MDT will close file before unlink. Signed-off-by:
Lai Siyao <lai.siyao@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4367 Reviewed-on: http://review.whamcloud.com/10426Reviewed-by:
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Lai Siyao authored
Currently client open-by-fid often packs name into the request, but the name may be invalid, eg. NFS export, and even if it's valid, it may cause inconsistency because this operation is done on this fid, which is globally unique, but name not. Since open-by-fid doesn't pack name, for striped dir we can't know parent stripe fid on client, so we set parent fid the same as child fid, and MDT has to find its parent fid from linkea (this is already supported by MDT). M_CHECK_STALE becomes obsolete. Unset MDS_OPEN_FL_INTERNAL from open syscall flags, because these flags are internally used, and should not be set from user space. It's not necessary to store parent fid in lli_pfid, because MDT can get it's parent fid from linkea, and now that DNE stripe directory stores master inode fid in lli_pfid, stop storing parent fid to avoid conflict. Signed-off-by:
Nathaniel Clark <nathaniel.l.clark@intel.com> Reviewed-by:
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Brian Behlendorf authored
As the LU cache grows it can consume large enough chunks of memory that ends up preventing buffers for other objects, such as the OIs, from being cached and severely impacting the performance for FID lookups. Limit the lu_object cache to a maximum of lu_cache_nr objects. NOTES: * In order to be able to quickly determine the number of objects in the hash table the CFS_HASH_COUNTER flag is added. This adds an atomic_inc/dec to the hash insert/remove paths but is not expected to have any measurable impact of performance. Signed-off-by:
Brian Behlendorf <behlendorf1@llnl.gov> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5164 Reviewed-on: http://review.whamcloud.com/10237Reviewed-by:
Isaac Huang <he.huang@intel.com> Reviewed-by:
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James Simmons authored
One of the versions of gcc I have refuses to build obd_mount.c due to index not be initialized in function lmd_make_exclusion before it is used. Signed-off-by:
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Emoly Liu authored
ldlm_lock_create() and ldlm_resource_get() always return NULL as error reporting and "NULL" is interpretted as ENOMEM incorrectly sometimes. This patch fixes this problem by using ERR_PTR() rather than NULL. Signed-off-by:
Emoly Liu <emoly.liu@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4524 Reviewed-on: http://review.whamcloud.com/9004Reviewed-by:
Bobi Jam <bobijam@gmail.com> Reviewed-by:
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Patrick Farrell authored
Add subsystem description from Di Wang to header file. Signed-off-by:
Patrick Farrell <paf@cray.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5153 Reviewed-on: http://review.whamcloud.com/10631Reviewed-by:
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wang di authored
Also use D_INFO no matter what the error returned from mdc_put_rpc_lock. Signed-off-by:
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Jinshan Xiong authored
A few changes are made in this patch for unstable pages tracking: 1. Remove kernel NFS unstable pages tracking because it killed performance 2. Track unstable pages as part of LRU cache. Otherwise Lustre can use much more memory than max_cached_mb 3. Remove obd_unstable_pages tracking to avoid using global atomic counter 4. Make unstable pages track optional. Tracking unstable pages is turned off by default, and can be controlled by llite.*.unstable_stats. Signed-off-by:
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Jinshan Xiong authored
A page in clio used to occupy 584 bytes, which will use size-1024 slab cache. This patch reduces the per-page overhead to 512 bytes so it can use size-512 instead. Signed-off-by:
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John L. Hammond authored
Rename each member of struct mdt_body, adding the prefix mbo_. Signed-off-by:
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Hongchao Zhang authored
the LOV xattr of directory could be either lov_user_md_v1 (size is 32) or lov_user_md_v3 (size is 48), then the actual size of the LOV xattr should be return. Signed-off-by:
jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr> Reviewed-by:
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