- 31 Mar, 2016 40 commits
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John L. Hammond authored
Move the definition of struct cl_client_cache to lustre/include/cl_object.h and move the rest of lustre/include/lclient.h in to lustre/llite/vvp_internal.h. Signed-off-by:
John L. Hammond <john.hammond@intel.com> Reviewed-on: http://review.whamcloud.com/12592 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971Reviewed-by:
Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by:
James Simmons <uja.ornl@gmail.com> Signed-off-by:
Oleg Drokin <green@linuxhacker.ru> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Li Dongyang authored
When we are doing a partial IO on both first and last page, the logic currently only call cl_page_clip on the first page, which will end up with a incorrect i_size. Signed-off-by:
Li Dongyang <dongyang.li@anu.edu.au> Reviewed-on: http://review.whamcloud.com/11630 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5552Reviewed-by:
Ian Costello <costello.ian@gmail.com> Reviewed-by:
Niu Yawei <yawei.niu@intel.com> Reviewed-by:
Li Xi <pkuelelixi@gmail.com> Reviewed-by:
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Jinshan Xiong authored
Writing thread already locked page #1, and then wait for the Writeback bit of page #2; Ptlrpc thread is composing a write RPC, so it sets Writeback on page #2 and tries to lock page #1 to make it ready. Deadlocked. Signed-off-by:
wangdi <di.wang@intel.com> Signed-off-by:
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Jinshan Xiong authored
The original code was wrong which clipped page incorrectly for partial pages started with zero. Signed-off-by:
Andreas Dilger <andreas.dilger@intel.com> Reviewed-by:
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Bobi Jam authored
Update comments to reflect current cl_lock situations. Signed-off-by:
Bobi Jam <bobijam.xu@intel.com> Reviewed-on: http://review.whamcloud.com/13137 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6046Reviewed-by:
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Jinshan Xiong authored
In this patch, the cl_lock cache is eliminated. cl_lock is turned into a cacheless data container for the requirements of locks to complete the IO. cl_lock is created before I/O starts and destroyed when the I/O is complete. cl_lock depends on LDLM lock to fulfill lock semantics. LDLM lock is attached to cl_lock at OSC layer. LDLM lock is still cacheable. Two major methods are supported for cl_lock: clo_enqueue and clo_cancel. A cl_lock is enqueued by cl_lock_request(), which will call clo_enqueue() methods for each layer to enqueue the lock. At the LOV layer, if a cl_lock consists of multiple sub cl_locks, each sub locks will be enqueued correspondingly. At OSC layer, the lock enqueue request will tend to reuse cached LDLM lock; otherwise a new LDLM lock will have to be requested from OST side. cl_lock_cancel() must be called to release a cl_lock after use. clo_cancel() method will be called for each layer to release the resource held by this lock. At OSC layer, the reference count of LDLM lock, which is held at clo_enqueue time, is released. LDLM lock can only be canceled if there is no cl_lock using it. Signed-off-by:
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Jinshan Xiong authored
To make cl_sync_io interfaces not just wait for pages, but to be a generic synchronization mechanism. Also remove cl_io_cancel that became not used. Signed-off-by:
Bobi Jam <bobijam@gmail.com> Reviewed-by:
Lai Siyao <lai.siyao@intel.com> Signed-off-by:
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Oleg Drokin authored
This was a compat code from the time it had ia_attr_flags. Instead convert all the cryptic callers that did ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags into direct access to op_data->op_attr_flags This also makes lustre/include/linux/obd.h not needed anymore, so remove it. Signed-off-by:
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John L. Hammond authored
In llite remove the wrapper functions and macros: cl_i2info() cl_i2sbi() cl_iattr2fd() cl_inode_info cl_inode_mode() cl_inode_{a,m,c}time() cl_isize_{read,write,write_nolock}() Signed-off-by: -
John L. Hammond authored
Remove the definition of struct client_obd_lock and the functions client_obd_list_{init,lock,unlock,done}(). Use spinlock_t for the cl_{loi,lru}_list_lock members of struct client_obd and call spin_{lock,unlock}() directly. Signed-off-by: -
John L. Hammond authored
In struct lmv_obd rename the init_mutex member to lmv_init_mutex. Remove the compat macros lmv_init_{lock,unlock}() and use mutex_{lock,unlock}(&lmv->lmv_init_mutex) instead. Signed-off-by:Bob Glossman <bob.glossman@intel.com> Reviewed-by:
Dmitry Eremin <dmitry.eremin@intel.com> Signed-off-by:
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John L. Hammond authored
In struct ll_inode_info remove the struct ost_lvb lli_lvb member and replace it with obd_time lli_{a,m,c}time. Rename ll_merge_lvb() to ll_merge_attr(). Remove cl_merge_lvb() and replace calls to it with calls to ll_merge_attr(). Signed-off-by: -
Jinshan Xiong authored
It used to check each page in the readahead window is covered by a lock underneath, now cpo_page_is_under_lock() provides @max_index to help decide the maximum ra window. @max_index can be modified by OSC to extend the maximum lock region, to align stripe boundary at LOV, and to make sure the readahead region at least covers read region at LLITE layer. After this is done, usually readahead code calls cpo_page_is_under_lock() for each stripe. Signed-off-by:
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Jinshan Xiong authored
>From now on, cl_page becomes one to one mapping of vmpage. Signed-off-by:
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Jinshan Xiong authored
Use weigh_ast to decide if a lock covers any pages. In recovery, weigh_ast will be used to decide if a DLM read lock covers any locked pages, or it will be canceled instead being recovered. The problem with the original implementation is that it attached each osc_page to an osc_lock also changed lock state to add every pages for readahead. Signed-off-by:
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Jinshan Xiong authored
in ll_write_end(), instead of adding the page into writeback cache directly, it will be held in a page list. After enough pages have been collected, issue them all with cio_commit_async(). Signed-off-by:
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Jinshan Xiong authored
This change adds support for a single preallocated cl_env per CPU which can be used in circumstances where reschedule is not possible. Currently this interface is only used by the ll_releasepage function. Signed-off-by:
Prakash Surya <surya1@llnl.gov> Reviewed-on: http://review.whamcloud.com/8174 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321Reviewed-by:
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Jinshan Xiong authored
Move radix tree to osc layer to for performance improvement. Signed-off-by:
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Jinshan Xiong authored
This way we can drop it async. Signed-off-by:
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Jinshan Xiong authored
Add and discard pages from LRU in batch. Signed-off-by:
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Jinshan Xiong authored
This reverts a patch that was merged before lustre client was introduced into the stagign tree, so it's not in the history. The performance dropped a lot when memory reclaim process kicked in as ll_releasepage() was called to destroy lustre pages. It turned out that big overhead to allocate cl_env and keys on the fly so we have to revert this patch. The original problem for the reverted patch would be solved in a follow on patch instead. Signed-off-by:
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John L. Hammond authored
Separate lclient was necessary to be shared between different client implementations, make no sense to have them separate in Linux kernel. Signed-off-by:
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Oleg Drokin authored
CFS_PAGE_MASK is the same as PAGE_MASK, so get rid of it. We are replacing it with PAGE_MASK instead of PAGE_CACHE_MASK because PAGE_CACHE_* stuff is apparently going away. Signed-off-by:
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Oleg Drokin authored
Allocating a big hash table using the formula for osd does not really work for clients. We will create new hash table for each mount on a single client which is a lot of memory more than expected. This patch limits the hash table up to 8M which has 524288 entries Signed-off-by:
Fan Yong <fan.yong@intel.com> Reviewed-by:
Alex Zhuravlev <alexey.zhuravlev@intel.com> Signed-off-by:
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Clifton Barnes authored
fix checkpatch.pl warning about 'Block comments use a trailing */ on a separate line' and 'Block comments use * on subsequent lines' Signed-off-by:
Clifton Barnes <clifton.a.barnes@gmail.com> Signed-off-by:
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Daeseok Youn authored
fix checkpatch.pl warning about 'Logical continuations should be on the previous line' Signed-off-by:
Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by:
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Daeseok Youn authored
fix checkpatch.pl warning about 'line over 80 characters'. I just moved all line comment to above if statement. Signed-off-by:
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Daeseok Youn authored
remove parenthesis around the CONST | CONST. It will be also fixed checkpatch.pl warning about "Alignment should match open parenthesis" becasue parenthesis were removed by this patch. Signed-off-by:
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Daeseok Youn authored
the dgnc_offset_table has a same value with (1 << port). So I tried to replace dgnc_offset_table array with 1 << port. And also there are redundant assignments(tmp and current_port) inside while loop for checking uart port, and remove them. Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issues by using the BIT macro and defining some macros for the multi-bit fields. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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H Hartley Sweeten authored
For completeness, define the registers used by this driver and remove the magic numbers. Signed-off-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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H Hartley Sweeten authored
For aesthetics, add some whitespace to the digital output subdevice initialization. Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by:
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H Hartley Sweeten authored
This function assumes that the async subdevice has a cancel() function. It looks like all the current comedi drivers implement a cancel() for the async subdevices except for the dt2814 analog input usbdevice. Fix comedi_handle_events() so it does not try to call a non-existent cancel() function. Add a dev_warn() to __comedi_device_postconfig_async() so that any new driver authors will be reminded to implement the cancel(). Signed-off-by:
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H Hartley Sweeten authored
Tidy up this function and fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issues. Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issues. Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issues by using the BIT macro and defining some macros for the multi-bit fields. Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issue: CHECK: spinlock_t definition without comment Signed-off-by:
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H Hartley Sweeten authored
Fix the checkpatch.pl issues. Signed-off-by:
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