- 25 Jun, 2016 15 commits
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Binoy Jayan authored
Deconstruct the kthread / message_queue logic, replacing it with create_singlethread_workqueue() / queue_work() setup, by adding a 'struct work_struct' to 'struct host_if_msg'. The current kthread hostIFthread() is converted to a work queue helper with the name 'host_if_work'. Signed-off-by:
Binoy Jayan <binoy.jayan@linaro.org> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Binoy Jayan authored
Move the contents of wilc_msgqueue.c and wilc_msgqueue.h into host_interface.c, remove 'wilc_msgqueue.c' and 'wilc_msgqueue.h'. This is done so as to restructure the implementation of the kthread 'hostIFthread' using a work queue. Signed-off-by:
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Binoy Jayan authored
The semaphore 'close_exit_sync' does not serve any purpose other than delaying the deregistration of the device which it is trying to protect from shared access. 'up' is called only when a subdevice is closed and not when it is opened. So, the semaphore count only goes up when the device is used. Signed-off-by:
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Binoy Jayan authored
The semaphore 'sync_event' is used as completion, so convert it to a struct completion type. Also, return -ETIME if the return value of wait_for_completion_timeout is 0. Signed-off-by:
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Binoy Jayan authored
The semaphore 'cfg_event' is used as completion, so convert it to a struct completion type. Signed-off-by:
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Binoy Jayan authored
The semaphore 'txq_add_to_head_cs' is a simple mutex, so it should be written as one. Semaphores are going away in the future. Also, removing the timeout scenario as the error handling code does not propagate the timeout properly. Signed-off-by:
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Binoy Jayan authored
The semaphore 'txq_event' is used as completion, so convert it to a struct completion type. Signed-off-by:
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Julia Lawall authored
firmare -> firmware Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
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Colin Ian King authored
trivial fix to spelling mistake in dev_err messages Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
Julian Calaby <julian.calaby@gmail.com> Signed-off-by:
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Chaehyun Lim authored
There is no need to use type cast of bss_type because hif_drv->cfg_values.bss_type is u8. Signed-off-by:
Chaehyun Lim <chaehyun.lim@gmail.com> Signed-off-by:
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Chaehyun Lim authored
A local bss_type variable is added to remove checkpatch warning of line over 80 characters. Signed-off-by:
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Chaehyun Lim authored
struct set_mac_addr is not used anymore, so just remove it. Signed-off-by:
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Chaehyun Lim authored
This patch renames result to ret that is used to get return value from wilc_send_config_pkt. Some handle_*() functions are used as result, others are used as ret. It will be changed as ret in all handle_*() functions to match variable name. Signed-off-by:
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Chaehyun Lim authored
This patch changes data type of result variable from s32 to int. result is used to get return value from wilc_send_config_pkt that has return type of int. Signed-off-by:
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Chaehyun Lim authored
When handle_cfg_param is called in hostIFthread that is a kernel thread, it is not checked return type of this function. This patch changes return type to void. Signed-off-by:
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- 20 Jun, 2016 25 commits
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Andreas Dilger authored
Lockdep complains about potential recursive locking during mount because the client configuration log is holding a lock on the MGC obd_device to prevent it from being torn down, while also getting mutexes on the MDC and OSC devices as they are instantiated: Lustre: Mounted myth-client ============================================= [ INFO: possible recursive locking detected ] 4.7.0-rc2-vm-nfs+ #127 Tainted: G C --------------------------------------------- May be due to missing lock nesting notation 2 locks held by ll_cfg_requeue/5928: #0: (&cli->cl_sem){.+.+.+}, at: mgc_requeue_thread+0x15d/0x730 [mgc] #1: (&cld->cld_lock){+.+.+.}, at: mgc_process_log+0x5e/0xf80 [mgc] CPU: 0 PID: 5928 Comm: ll_cfg_requeue Call Trace: [<ffffffff814a0855>] dump_stack+0x86/0xc1 [<ffffffff810e7766>] __lock_acquire+0x726/0x1210 [<ffffffff810e86be>] lock_acquire+0xfe/0x1f0 [<ffffffff81888171>] down_read+0x51/0xa0 [<ffffffffa04a8477>] sptlrpc_conf_client_adapt+0x47/0x150 [ptlrpc] [<ffffffffa0186b16>] mdc_set_info_async+0x2b6/0x470 [mdc] [<ffffffffa0294090>] class_notify_sptlrpc_conf+0x190/0x360 [obdclass] [<ffffffffa01a9e85>] mgc_process_log+0x925/0xf80 [mgc] [<ffffffffa01abafa>] mgc_requeue_thread+0x1fa/0x730 [mgc] [<ffffffff810af331>] kthread+0x101/0x120 [<ffffffff8188ad6f>] ret_from_fork+0x1f/0x40 Add a separate lock class for the MGC callpath, since it will always be held first, and none of the other obd_device locks should ever be held concurrently. Signed-off-by:Andreas Dilger <andreas.dilger@intel.com> Signed-off-by:
Oleg Drokin <green@linuxhacker.ru> Signed-off-by:
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Oleg Drokin authored
kthread_run might sleep during an allocation, and so it's considered unsafe to call with a state that's not RUNNABLE. Move the state setting to after kthread_run call. Signed-off-by:
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Andriy Skulysh authored
A deadlock is possible during ccc_prep_size()->ldlm_lock_match() vs cl_io_lock() which is waiting for a matched lock and conflicts with already taken lock before ccc_prep_size(). It is better to send an additional lock request to avoid deadlock. Seagate-bug-id: MRP-3312 Signed-off-by:
Andriy Skulysh <andriy.skulysh@seagate.com> Reviewed-on: http://review.whamcloud.com/18738 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7829Reviewed-by:
Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by:
Bobi Jam <bobijam@hotmail.com> Signed-off-by:
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Oleg Drokin authored
commit ac5b1481 ("staging: lustre: osc: Track and limit "unstable" pages") added a new sysfs variable, but corresponding bit of documentation was not forgotten. Signed-off-by:
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Dmitry Eremin authored
Bit field 'oi_lockless' and 'oi_is_active' has one bit and is signed which is confusing. Signed-off-by:
Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-on: http://review.whamcloud.com/19196 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7258Reviewed-by:
James Simmons <uja.ornl@yahoo.com> Reviewed-by:
Frank Zago <fzago@cray.com> Reviewed-by:
John L. Hammond <john.hammond@intel.com> Signed-off-by:
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akam kumar bharathi authored
req_capsule_server_get() through __req_capsule_get in ll_dir_ioctl() returns a pointer to a PTLRPC request or reply buffer, which is assigned to struct mdt_body. If the command is IOC_MDS_GETFILEINFO then the inode "st.st_ino" should be assigned from one extracted from mdt_body through cl_fid_build_ino(). Signed-off-by:
akam kumar bharathi <azurelustre@gmail.com> Reviewed-on: http://review.whamcloud.com/17618 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5954Reviewed-by:
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Oleg Drokin authored
There are a couple of cases in ll_revalidate_dentry() where we are pretty sure the dentry is valid, so check for them early and save more expensive checks for later. Signed-off-by:
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Oleg Drokin authored
Mark dentries that came to us via NFS in a special way so that we can tell them apart during open and activate open cache (we really don't want to do open/close RPC for every NFS IO). This became needed since dentry revlidate no longer reimplements any RPCs for lookup, and as such if a dentry is valid, ll_revalidate_dentry returns 1 and ll_lookup_it() is never visited during opens, we get straght into ll_file_open() without a valid intent/RPC. This used to be only true for NFS, so opencache was engaged needlessly, and it carries a cost of it's own if there is in fact no repetitive file opening-closing going on Signed-off-by:
Oleg Drokin <oleg.drokin@intel.com> Reviewed-on: http://review.whamcloud.com/20354 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8019Reviewed-by:
Li Xi <lixi@ddn.com> Signed-off-by:
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Sergey Cheremencev authored
LASSERT should never be done on data that is received to over the network. Return EINVAL when server returns invalid fid despite of it_status == 0. Signed-off-by:
Sergey Cheremencev <sergey.cheremencev@seagate.com> Seagate-bug-id: MRP-3073 Reviewed-on: http://review.whamcloud.com/17985 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7422Reviewed-by:
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Niu Yawei authored
While atime on close is supposed to only increase, there's a bug in some older server versions where atime from a client is taken no matter the value that allows a stale client atime to overwrite a correct value. Update atime in close rpc to 0 to help such servers out. Signed-off-by:
Niu Yawei <yawei.niu@intel.com> Reviewed-on: http://review.whamcloud.com/19932 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8041Reviewed-by:
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Yang Sheng authored
The watched obd device may still not setup while onu_upcall invoked. So we need verify it in cl_ocd_update. Signed-off-by:
Yang Sheng <yang.sheng@intel.com> Reviewed-on: http://review.whamcloud.com/19597 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8027Reviewed-by:
Lai Siyao <lai.siyao@intel.com> Signed-off-by:
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John L. Hammond authored
Add a const qualifier to several struct lustre_handle * parameters in the LDLM interface. Signed-off-by:
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John L. Hammond authored
Change the void *it_data member of struct lookup_intent to struct ptlrpc_request *it_request. Signed-off-by:
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Oleg Drokin authored
They are just one-liners, so no point in having them exported and called through a different module. Signed-off-by:
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John L. Hammond authored
Replace the union in struct lookup_intent with the members of struct lustre_indent_data. Remove the then unused struct lustre_intent_data. Signed-off-by:
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Bob Glossman authored
LU_OBJECT_DEBUG expects non \n terminated message from the caller, so it should add it's own to keep debug logger happy. Signed-off-by:
Bob Glossman <bob.glossman@intel.com> Reviewed-on: http://review.whamcloud.com/19960 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8094Reviewed-by:
Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by:
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Alex Zhuravlev authored
as it adds own \n, so any extra \n break log format. Signed-off-by:
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Patrick Farrell authored
The lli_trunc_sem is taken in 'read' mode in both ll_page_mkwrite and vvp_io_fault_start. This can lead to a deadlock with another thread which asks for the semaphore in write mode between thse two read calls. Since all users of lli_trunc_sem are in the vvp layer, we can satisfy the requirement to exclude truncate by taking the semaphore only in vvp_io_fault_start. Signed-off-by:
Patrick Farrell <paf@cray.com> Reviewed-on: http://review.whamcloud.com/19315 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7981Reviewed-by:
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Vitaly Fertman authored
The reverse order of request_out_callback() and reply_in_callback() puts the RPC into UNREGISTERING state, which is waiting for RPC & bulk md unlink, whereas only RPC md unlink has been called so far. If bulk is lost, even expired_set does not check for UNREGISTERING state. The same for write if server returns an error. This phase is ambiguous, split to UNREG_RPC and UNREG_BULK. Signed-off-by:
Vitaly Fertman <vitaly.fertman@seagate.com> Seagate-bug-id: MRP-2953, MRP-3206 Reviewed-by:
Alexey Leonidovich Lyashkov <alexey.lyashkov@seagate.com> Tested-by:
Elena V. Gryaznova <elena.gryaznova@seagate.com> Reviewed-on: http://review.whamcloud.com/19953Reviewed-by:
Chris Horn <hornc@cray.com> Reviewed-by:
Ann Koehler <amk@cray.com> Reviewed-by:
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Ben Evans authored
Combine __ptlrpc_request_bufs_pack into ptlrpc_request_bufs_pack because it was an unnecessary wrapper otherwise. Signed-off-by:
Ben Evans <bevans@cray.com> Reviewed-on: http://review.whamcloud.com/16765 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7269Reviewed-by:
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Vitaly Fertman authored
A race between unregister_reply & early reply. When buffers are busy for the early transfer, they cannon be unlinked by unregister_reply, so the RPC gets into UNREGISTERING state. The coming reply_in_callback for the early RPC already has unlinked flag set due to previous mdunlink attempt, but we handle it properly only for UNILNK event, whereas this is PUT in this case. Signed-off-by:
Parinay Vijayprakash Kondekar <parinay.kondekar@seagate.com> Reviewed-on: http://review.whamcloud.com/18934 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7434Reviewed-by:
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Liang Zhen authored
This patch changes a few things: - There is no guarantee that request_out_callback will happen before reply_in_callback, if a request got reply and unlinked reply buffer before request_out_callback is called, then the thread waiting on ptlrpc_request_set will miss wakeup event. This may seriously impact performance of some IO workloads or result in RPC timeout - To make code more easier to understand, this patch changes action-bits "rq_req_unlink" and "rq_reply_unlink" to status-bits "rq_req_unlinked" and "rq_reply_unlinked" Signed-off-by:
Liang Zhen <liang.zhen@intel.com> Reviewed-on: http://review.whamcloud.com/12158 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5696Reviewed-by:
Johann Lombardi <johann.lombardi@intel.com> Reviewed-by:
Li Wei <wei.g.li@intel.com> Reviewed-by:
Mike Pershin <mike.pershin@intel.com> Signed-off-by:
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Liang Zhen authored
ptlrpc_request has some structure members are only for client side, and some others are only for server side, this patch moved these members to different structure then putting into an union. By doing this, size of ptlrpc_request is decreased about 300 bytes, besides saving memory, it also can reduce memory footprint while processing. Signed-off-by:
Bobi Jam <bobijam@gmail.com> Signed-off-by:
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Oleg Drokin authored
When imprting clio simplification patch, the check for pbject got reversed by mistake when converting from if (obj == NULL) it somehow became (if (obj) which is obviously wrong, and so when it does hit, a crash was happening as result. Fix the condition and all if fine now. Signed-off-by:
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Jinshan Xiong authored
With huge number of pages to scan by osc_lock_weight() it is likely CLP_GANG_RESCHED is returned from osc_page_gang_lookup() and the scan will be repeated again from the start. To be sure that the scan is progressing across those restarts, next scan should be started from the last scanned page index plus one. Xyratex-bug-id: MRP-2145 Signed-off-by:
Alexander Zarochentsev <alexander.zarochentsev@seagate.com> Signed-off-by:
James Simmons <uja.ornl@gmail.com> Signed-off-by:
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