- 29 Apr, 2016 14 commits
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Prakash Surya authored
This change adds a BRW page flag, OBD_BRW_SOFT_SYNC. This flag is intended to urge a server to commit a client's unstable pages to stable storage. A client will add this flag to any BRW requests while it is in a state where it has "many" unstable pages pinned in its cache. The server, upon receiving a page with this flag set, *should* begin an async commit. The idea being that, with the proactive async commit, the client's pinned unstable pages will transition into a stable state faster than they would have otherwise. Although, the server side portion of this agreement is still unimplemented, so the OBD_BRW_SOFT_SYNC flag will currently fall on deaf ears. Signed-off-by:
Prakash Surya <surya1@llnl.gov> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2139 Reviewed-on: http://review.whamcloud.com/4375Reviewed-by:
Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by:
Oleg Drokin <oleg.drokin@intel.com> Signed-off-by:
James Simmons <jsimmons@infradead.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Prakash Surya authored
This change adds simple accounting hooks for "unstable" pages on a per OSC basis. Now, in addition to the per filesystem tracking, each OSC will maintain a running total of its unstable pages. These counters are exported through the proc interface, and can be read using the lctl command. For example: # Read number of unstable pages contained by each OSC lctl get_param osc.*.unstable_stats The motivation for this change is in anticipation of implementing a "soft sync" functionality, urging servers to commit these unstable pages to stable storage. The per OSC accounting allows a client to limit the soft sync request to only the OSCs which have outstanding unstable pages. Signed-off-by:
Andreas Dilger <andreas.dilger@intel.com> Reviewed-by:
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Prakash Surya authored
This change adds a global counter to track the number of "unstable" pages held by a given client, along with per file system counters. An "unstable" page is defined as a page which has been sent to the server as part of a bulk request, but is uncommitted to stable storage. In addition to simply tracking the unstable pages, they now also count towards the maximum number of "pinned" pages on the system at any given time. Thus, a client will now be bound on the number of dirty and unstable pages it can pin in memory. Previously only dirty pages were accounted for in this limit. In addition to tracking the number of unstable pages in Lustre, the NR_UNSTABLE_NFS memory zone is also incremented and decremented for easy monitoring using the "NFS_Unstable:" field in /proc/meminfo. This field is also used internally by the kernel to limit the total amount of unstable pages on the system. The motivation for this change is twofold. First, the client must not allow itself to disconnect from an OST while still holding unstable pages. Otherwise, these unstable pages can get lost due to an OST failure, and replay is not possible due to the disconnect via unmount. Secondly, the client needs a mechanism to prevent it from allocating too much of its available RAM to unreclaimable pages pinned by the ptlrpc layer. If this case occurs, out of memory events can trigger as a side effect, which we need to avoid. The current number of unstable pages accounted for on a per file system granularity is exported by the unstable_stats proc file, contained under each file system's llite namespace. An example of retrieving this information is below: $ lctl get_param llite.*.unstable_stats Signed-off-by:
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Sebastien Buisson authored
Fix 'error handling' issues found by Coverity version 6.6.1: Unchecked return value (CHECKED_RETURN) Calling function without checking return value. Argument cannot be negative (NEGATIVE_RETURNS) Negative value used as argument to a function expecting a positive value. Signed-off-by:
Sebastien Buisson <sbuisson@ddn.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4055 Reviewed-on: http://review.whamcloud.com/7842Reviewed-by:
Dmitry Eremin <dmitry.eremin@intel.com> Reviewed-by:
James Nunez <james.a.nunez@intel.com> Reviewed-by:
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Niu Yawei authored
Replace LASSERT with LASSERTF in osc_completion, thus we can get more info when the LASSERT is triggered. Signed-off-by:
Niu Yawei <yawei.niu@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3843 Reviewed-on: http://review.whamcloud.com/7494Reviewed-by:
Bobi Jam <bobijam@gmail.com> Reviewed-by:
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James Nunez authored
The printing of i_ino/i_generation in llite messages is not nearly so useful as printing the full inode FID, since i_ino is a "compressed" version of the FID and there may be duplicate values for i_ino in some cases (especially if running on a 32-bit client). All instances of printing i_ino/i_generation are replaced with the FID using ll_inode2fid(). All instances, except for one, of printing just i_ino was replaced by printing the FID. In all CERROR lines touched by the i_ino replacements, the device name or fsname was added at the beginning of the message if it did not already exist. Signed-off-by:
John L. Hammond <john.hammond@intel.com> Signed-off-by:
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Bruce Korb authored
Add and update documentation about some of the ldlm l_flags. Signed-off-by:
Bruce Korb <bruce.korb@gmail.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2906Reviewed-by:
Keith Mannthey <Keith.Mannthey@intel.com> Reviewed-on: http://review.whamcloud.com/7963Reviewed-by:
Doug Oucharek <doug.s.oucharek@intel.com> Reviewed-by:
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Bruce Korb authored
Wireshark output moved to userland file "lustre_dlm_flags_wshark.c" and only bits that can actually appear "on the wire" are emitted. The user land "packet-lustre.c" code that references these bits now gets emitted into that file. e.g. the "local_only" bit is never put on the wire, so references to it in wireshark are gone. Signed-off-by:
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Bruce Korb authored
Remove the now obsolete LDLM_AST_FLAGS and LDLM_INHERIT_FLAGS defines. Remove the obsolete LDLM_FL_HIDE_LOCK_MASK define. Rename "local_only" mask to "off_wire" since it is confusingly similar to a flag that (I think) means, "do not copy this lock over the wire." Signed-off-by:
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Bruce Korb authored
Convert most of the ldlm lock's l_flags references from direct bit twiddling to using bit specific macros. A few multi-bit operations are left as an exercise for the reader. The changes are mostly in ldlm, but also in llite, osc and quota. Also add a multi-bit (mask) test. Signed-off-by:
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Dmitry Eremin authored
There are few places with access to lmv->tgts[] without check for NULL. Usually it may happens when MDT configured starting from index 1 instead of 0. For example: mkfs.lustre --reformat --mgs --mdt --index=1 /dev/sdd1 Signed-off-by:
Alex Zhuravlev <alexey.zhuravlev@intel.com> Reviewed-by:
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Wang Di authored
Add LCT_SERVER_SESSION for server session, and separate the server session flag from LCT_SESSION, so to avoid allocating session info for client stack for each server request, if client and server are on the same node. Signed-off-by:
Wang Di <di.wang@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3806 Reviewed-on: http://review.whamcloud.com/7412Reviewed-by:
Mike Pershin <mike.pershin@intel.com> Reviewed-by:
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Dmitry Eremin authored
Suppress erroneous/confusing messages when NFS is out of sync and requests old data. Signed-off-by:
Bob Glossman <bob.glossman@intel.com> Signed-off-by:
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Jinshan Xiong authored
Otherwise after one round the writeback index will become beyond the file size and ->writepages() turns into an empty operation. Also, a safety guard is added to limit the wait time for grant to 10 minutes(take recovery into consideration) at maximum in the osc_enter_cache() function. Otherwise, EDQUOT will be returned to the applications to start sync write. Signed-off-by:
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- 26 Apr, 2016 23 commits
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Iban Rodriguez authored
Variable lustre_profile_list is only used inside obd_config.c, better make it static Signed-off-by:
Iban Rodriguez <iban.rodriguez@ono.com> Acked-by:
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John L. Hammond authored
In the MDC HSM handlers that do not pack a real suppgid, use -1 rather than 0 for the suppgid in mdt_body. Signed-off-by:
Aurelien Degremont <aurelien.degremont@cea.fr> Reviewed-by:
Faccini Bruno <bruno.faccini@intel.com> Reviewed-by:
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John L. Hammond authored
In the LL_IOC_HSM_CT_START case of ll_dir_ioctl() require CAP_SYS_ADMIN, since the local handler for this ioctl may modify the global KUC table. Signed-off-by:
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Andriy Skulysh authored
Patch for LU-631 which was landed before the upstream merge broke OBD_STATFS_NODELAY behaviour. It adds unnecessary delay while running df command with inactive OSTs. We shouldn't try to recover connection to OST in this case. Signed-off-by:
Andriy Skulysh <Andriy_Skulysh@xyratex.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4010 Reviewed-on: http://review.whamcloud.com/7762Reviewed-by:
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Bruno Faccini authored
Since st_blocks = NULL is returned for released files, FIEMAP should at least return a minimal mapping to make users aware that file contains data but it is not immediately available. This will make coreutils and tools such tar happy and have them presume file is sparse. Also, add a new test_228 in sanity-hsm to verify it works for "[cp,tar] --sparse" commands. Also fix a LBUG ("lov_fiemap()) ASSERTION( fm_local ) failed") likely to occur when no-object/ENOMEM conditions and also now when released. Signed-off-by: -
Andrew Perepechko authored
This patch implements log2 using fls. Signed-off-by:
Andrew Perepechko <andrew_perepechko@xyratex.com> Reviewed-by:
Alexander Boyko <Alexander_Boyko@xyratex.com> Reviewed-by: alexander_zarochentsev@xyratex.com Reviewed-by:
Vitaly Fertman <Vitaly_Fertman@xyratex.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3496 Xyratex-bug-id: MRP-999 Reviewed-on: http://review.whamcloud.com/6757Reviewed-by:
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Jinshan Xiong authored
Otherwise it will hit the assertion at cl_lock.c: cl_lock.c:1967:discard_cb()) ASSERTION( (!(page->cp_type == CPT_CACHEABLE) || (!PageWriteback(cl_page_vmpage(env, page)))) ) failed: This is because in osc_lock_flush() we have to make sure the IO is finished before discarding the pages. Signed-off-by:
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Jinshan Xiong authored
Truncate up is safe so it won't trigger restore. Copy optimization for truncate down - only copy the part under truncate length. If a file is truncated to zero usually it'll be followed by write so I choose to restore the file and set correct stripe information. Signed-off-by:
jacques-Charles Lafoucriere <jacques-charles.lafoucriere@cea.fr> Reviewed-by:
Henri Doreau <henri.doreau@cea.fr> Reviewed-by:
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Swapnil Pimpale authored
This patch has the following: 1) Fix for the return value from ptlrpcd_init(). It will now return a correct status instead of returning zero always. 2) ptlrpcd_addref() should not increment ptlrpcd_users on error. 3) Added code in a mdc_setup() and mgc_setup() to test the return value of ptlrpcd_addref() and return on error. Signed-off-by:
Swapnil Pimpale <spimpale@ddn.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3808 Reviewed-on: http://review.whamcloud.com/7522Reviewed-by:
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Bobi Jam authored
If we specify multiple --mgsnode for a MDT, when we start MDS upon it while MGS is no the other node, the MGC import connection will always select the local nid (which is one of the candidate mgsnode) since it think its the closest connection. This patch treats further --mgsnode nids as failover nids, so that multiple import connections are added for the MGC import. Signed-off-by:
Bobi Jam <bobijam.xu@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3829 Reviewed-on: http://review.whamcloud.com/7509Reviewed-by:
Liang Zhen <liang.zhen@intel.com> Reviewed-by:
Lai Siyao <lai.siyao@intel.com> Reviewed-by:
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Jinshan Xiong authored
The root cause is that when max_cache_mb conf parameter is applied, the client isn't connected to the OST yet so that sbi->ll_dt_exp is NULL. However, it's not necessary to shrink the cache memory in this case so success should be returned. Signed-off-by:
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Andrew Perepechko authored
Assume dchild argument is fully initialized in ->unlink and ->rmdir callbacks, so additional lookup for ELC is not needed. Signed-off-by:
Fan Yong <fan.yong@intel.com> Reviewed-by:
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Andrew Perepechko authored
With the patch 6648 a fee variables were renamed. We do these renames in broken out patch to the fix obvious. Signed-off-by:
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Bruno Faccini authored
Follow-on to patch introduced to fix LU-2665 ticket (Gerrit Change at http://review.whamcloud.com/6415 with Change-Id: I8faa331712abeadee46eabe111ee1c23a05840d5). Original patch introduced regressions against POSIX test suite (fcntl.18/fcntl.35 tests in LSB-VSX POSIX test suite at http://www.opengroup.org/testing/linux-test/lsb-vsx.html), so the idea is to only resend F_UNLCKs to have both LU-2665 bug and POSIX test suite happy. Signed-off-by:
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Bruno Faccini authored
Protect against race where lock could have been just destroyed due to overlap, in ldlm_process_flock_lock(). Easy reproducer is BULL's NFS Locktests in pthread mode. (http://nfsv4.bullopensource.org/tools/tests/locktest.php) Signed-off-by:
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Niu Yawei authored
Fixed several incorrect assumptions in 'enable-invariants'. Signed-off-by:
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Sebastien Buisson authored
Fix 'data race condition' defects found by Coverity version 6.5.0: Data race condition (MISSING_LOCK) Accessing variable without holding lock. Elsewhere, this variable is accessed with lock held. This patch is dedicated to code fragments involving oap_lock. Signed-off-by:
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Bobi Jam authored
Current CLIO does not support fadvise, suppress the error message. Signed-off-by:
Oleg Drokin <green@linuxhacker.ru> Signed-off-by:
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Oleg Drokin authored
This patch fixes all checkpatch occurences of CHECK: Blank lines aren't necessary after an open brace '{' CHECK: Blank lines aren't necessary before a close brace '}' in Lustre code. Signed-off-by: -
Aleksei Fedotov authored
Fix libcfs_ioctl() prototype according to its definition in libcfs/module.c. Signed-off-by:
Aleksei Fedotov <lexa@cfotr.com> Acked-by:
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James Simmons authored
Change all the wire protocol typedefs to proper structures Signed-off-by:
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James Simmons authored
Turn typedef lstcon_test_t to proper structure Signed-off-by:
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Greg Kroah-Hartman authored
Merge tag 'iio-for-4.7b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-testing Jonathan writes: 2nd set of new device support, features and cleanup for IIO in the 4.7 cycle. Bit of a bumper set for new drivers but plenty of other stuff here as well! New device support * ad5592R ADC/DAC - new driver supporting ad5592r and ad5593r combined ADC/DAC and gpio chips. * Aosong am2315 relative humidity - new driver with triggered buffer support in follow up patch. * bmi160 imu - new driver * bmp280 - bmp180 support - note there is support in the misc/bmp085 driver. Intent is to remove that driver long term. * invensense mpu6050 - cleanup leading to explicit support of mpu9150 with a good few cleanups along the way. * Hope RF hp03 pressure and temperature sensor. - new driver * maxim DS1803 potentiometer - new driver * maxim max44000 light and proximity sensor - new driver built in a series of steps to support pretty much everything. * ROHM BH1780 light sensor - new driver. There is an existing driver in misc that this is pretty much intended to replace. The discussion on whether to support the non standard interface of that driver is some way is continuing. * st-gyro - lsm9ds0-gyro. The accel/magn side of this will take a while longer as extensions to the st library are needed for cases where two types of sensor share a single i2c address. * ti-adc081c - support the adc101c and adc121c * Vishay VEML6070 UV sensor - new driver. New features * core - devm_ APIs for channel_get and channel_get_all. The first user of these is the generic ADC based thermal driver. As it is going through the thermal tree these will be picked up as a patch to that next cycle as that is how the author preferred to do it. - mounting matrix support. This new core support allows devices to provide to userspace (typically from the device tree) allowing compensation for how the sensor is mounted on the device. First examples are on UAVs but it has a more mundane use on typical phone where the chip may be on the front or the back of the circuit board and soldered at any angle. Includes support for this ABI in ak8975 (which has an older interface, now deprecated) and mpu6050. * tools - add a -a option to enable all available channels in generic_buffer sample. Makes it somewhat easier to use. * adis library and drivers - support manual self test flag clearing. This has technically been broken for a very long time - result is an offset on readings as the applied field is on all the time. * ak8975 - triggered buffer support * bmc150 - spi support (including splitting the driver into core and i2c parts) * bmp280 - oversampling support. * dht11 - improved logging - useful to debug timing issues on this quirky device. * st-sensors - read each channel invidivually as not all support the optimization of reading in bulk. This is technically a fix, but will need to be backported if desired. - support open drain and shared interrupts. * ti-adc081c - triggered buffer support. Cleanups * inkern - white space fix. * ad7606 - use the iio_device_claim_direct_mode call rather than open coding equiv. * ad799x - white space fix. * ad9523 - unsigned -> unsigned int * apds9660 - brace location tidying up. - silence an uninitialized variable warning. * ak8975 - else and brace on same line fix. * at91_adc - white space fixes. * bmc150 - use regmap stored copy of the device pointer rather than having an additional copy. * bmg160 - use regmap stored copy of the device pointer rather than having an additional copy. * hid-sensors - white space fixes. * mcp3422 - white space fix. * mma7455 - use regmap to retrieve the device struct rather than carrying another copy in the private data. * ms_sensors - white space fix. * mxs-lradc - move current bindings out of staging - some will be shortly deprecated but the reality is that we have device trees out there using them so they will need to be supported for some time. They accidentally got left behind when the driver graduated from staging. - white space cleanup. - set INPUT_PROP_DIRECT. - move ts config into a better function. - move the STMP reset out of the ADC init. * vf610_adc - case label indenting fix.
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- 25 Apr, 2016 3 commits
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Crestez Dan Leonard authored
This device is a package containing a MPU6050-like sensor and an AK8975 magnetometer. The magnetometer component is supported by the existing ak8975 driver. This patch also rephrases the Kconfig descriptions. Signed-off-by:
Crestez Dan Leonard <leonard.crestez@intel.com> Acked-by:
Ge Gao <ggao@invensense.com> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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Crestez Dan Leonard authored
Signed-off-by:
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Crestez Dan Leonard authored
This can be used to distinguish mpu6500. This is a warning rather than an error because the differences are mostly irrelevant and it's nice to avoid breaking users with slightly incorrect ACPI/DT. Signed-off-by:
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