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* OpenZFS 6328 - Fix cstyle errors in zfs codebaseGeorge Melikov2017-01-121-6/+3
| | | | | | | | | | | | | | Authored by: Paul Dagnelie <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Jorgen Lundman <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/6328 OpenZFS-commit: https://github.com/illumos/illumos-gate/commit/9a686fb Closes #5579
* OpenZFS 7259 - DS_FIELD_LARGE_BLOCKS is unusedGeorge Melikov2017-01-031-7/+0
| | | | | | | | | | | | | | | | | | Authored by: Matthew Ahrens <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: Dan McDonald <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> The DS_FIELD_LARGE_BLOCKS macro has been unused since the integration of this patch: 241b541 Illumos 5959 - clean up per-dataset feature count code. This patch simply removes this macro from dsl_dataset.h. OpenZFS-issue: https://www.illumos.org/issues/7259 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/faa8036 Closes #5544
* Fix spellingka72017-01-0310-11/+11
| | | | | | | | | Reviewed-by: Brian Behlendorf <[email protected] Reviewed-by: Giuseppe Di Natale <[email protected]>> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Haakan T Johansson <[email protected]> Closes #5547 Closes #5543
* 4.10 compat - BIO flag changes and othersTim Chase2016-12-301-9/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | [bio] The req_op enum was changed to req_opf. Update the "Linux 4.8 API" autotools checks to use an int to determine whether the various REQ_OP values are defined. This should work properly on kernels >= 4.8. [bio] bio_set_op_attrs() is now an inline function and can't be detected with #ifdef. Add a configure check to determine whether bio_set_op_attrs() is defined. Move the local definition of it from vdev_disk.c to blkdev_compat.h for consistency with other related compability shims. [bio] The read/write flags and their modifiers, including WRITE_FLUSH, WRITE_FUA and WRITE_FLUSH_FUA have been removed from fs.h. Add the new bio_set_flush() compatibility wrapper to replace VDEV_WRITE_FLUSH_FUA and set the flags appropriately for each supported kernel version. [vfs] The generic_readlink() function has been made static. If .readlink in inode_operations is NULL, generic_readlink() is used. [zol typo] Completely unrelated to 4.10 compat, fix a typo in the check for REQ_OP_SECURE_ERASE so that the proper macro is defined: s/HAVE_REQ_OP_SECURE_DISCARD/HAVE_REQ_OP_SECURE_ERASE/ Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Chunwei Chen <[email protected]> Signed-off-by: Tim Chase <[email protected]> Closes #5499
* Use a dedicated taskq for vdev_fileChunwei Chen2016-12-211-0/+3
| | | | | | | | | | | | | | | | | The introduction of parallel zvol prefetch causes deadlock when using vdev_file. spa_async->(spa_namespace_lock)->txg_wait_synced->(wait for txg_sync) txg_sync->zio_wait->(wait for vdev_file_io_fsync on system_taskq) zvol_prefetch_minors_impl (on system_taskq)->spa_open_common->(wait for spa_namespace_lock) We fix this by using dedicated taskq for vdev_file. This same change was originally made in commit bc25c93 but reverted in commit aa9af22 when dynamic taskqs were added. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #5506 Closes #5495
* Fix wrong operator in xvattr.hChunwei Chen2016-12-141-5/+5
| | | | Signed-off-by: Chunwei Chen <[email protected]>
* Use cstyle -cpP in `make cstyle` checkBrian Behlendorf2016-12-1214-46/+61
| | | | | | | | | | | | | | | | | | | | | | | Enable picky cstyle checks and resolve the new warnings. The vast majority of the changes needed were to handle minor issues with whitespace formatting. This patch contains no functional changes. Non-whitespace changes are as follows: * 8 times ; to { } in for/while loop * fix missing ; in cmd/zed/agents/zfs_diagnosis.c * comment (confim -> confirm) * change endline , to ; in cmd/zpool/zpool_main.c * a number of /* BEGIN CSTYLED */ /* END CSTYLED */ blocks * /* CSTYLED */ markers * change == 0 to ! * ulong to unsigned long in module/zfs/dsl_scan.c * rearrangement of module_param lines in module/zfs/metaslab.c * add { } block around statement after for_each_online_node Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Håkan Johansson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #5465
* Speed up zvol import and export speedBrian Behlendorf2016-12-081-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | Speed up import and export speed by: * Add system delay taskq * Parallel prefetch zvol dnodes during zvol_create_minors * Parallel zvol_free during zvol_remove_minors * Reduce list linear search using ida and hash Reviewed-by: Boris Protopopov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #5433
| * Use system_delay_taskq for long delay tasksChunwei Chen2016-12-011-0/+1
| | | | | | | | | | | | | | | | | | Use it for spa_deadman, zpl_posix_acl_free, snapentry_expire. This free system_taskq from the above long delay tasks, and allow us to do taskq_wait_outstanding on system_taskq without being blocked forever, making system_taskq more generic and useful. Signed-off-by: Chunwei Chen <[email protected]>
* | Cache ddt_get_dedup_dspace() value if there was no ddt changesGvozden Neskovic2016-12-021-0/+1
| | | | | | | | | | | | | | | | Save and reuse ddt dspace calculation when there have been no ddt changes. This avoids unnecessary traversal of 168KiB of ddt histograms. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Gvozden Neskovic <[email protected]> Closes #5425
* | Refactor txg history kstatBrian Behlendorf2016-12-021-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It was observed that even when the txg history is disabled by setting `zfs_txg_history=0` the txg_sync thread still fetches the vdev stats unnecessarily. This patch refactors the code such that vdev_get_stats() is no longer called when `zfs_txg_history=0`. And it further reduces the differences between upstream and the ZoL txg_sync_thread() function. Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #5412
* | Remove unused sa_update_from_cb()cao2016-12-011-2/+0
| | | | | | | | | | | | | | | | | | | | It looks like this was functionality which was added in the original SA implementation and then never needed. It can be safely removed now and easily added back if we find a use for it. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: cao.xuewen <[email protected]> Closes #5440
* | Compile zio.h and zio_impl.h mutual includecao2016-12-011-3/+0
| | | | | | | | | | | | | | | | | | zio.h includes zio_impl.h but zio_impl.h also includes zio.h, so the header files to contain each other. Get rid of the zio_impl.h include in zio.h and update zio_inject.c to include zio.h instead of zio_impl.h. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: cao.xuewen <[email protected]> Closes #5439
* | ABD optimized page allocation codeChunwei Chen2016-11-291-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Convert ABD to use the Linux Kernel scatterlist implementation instead of the hand rolled one from illumos. * Scatter ABDs are preferentially populated with higher order compound pages from a single zone. Allocation size is progressively decreased until it can be satisfied without performing reclaim or compaction. * An alternate page allocator is provided for kernels older than 3.6 and for CONFIG_HIGHMEM systems. This allocator is designed as a fallback for maximum compatibility. * Extended abdstats to provide visibility in the the allocator. * Add cached value for PAGESIZE in userspace. Contributions-by: Chunwei Chen <[email protected]> Gvozden Neskovic <[email protected]> Jinshan Xiong <[email protected]> Isaac Huang <[email protected]> David Quigley <[email protected]> Brian Behlendorf <[email protected]>
* | ABD changes for vectorized RAIDZGvozden Neskovic2016-11-291-0/+10
| | | | | | | | | | | | | | | | | | | | * userspace: aligned buffers. Minimum of 32B alignment is needed for AVX2. Kernel buffers are aligned 512B or more. * add abd_get_offset_size() interface * abd_iter_map(): fix calculation of iter_mapsize * add abd_raidz_gen_iterate() and abd_raidz_rec_iterate() Signed-off-by: Gvozden Neskovic <[email protected]>
* | ABD page support to vdev_disk.cIsaac Huang2016-11-292-1/+7
| | | | | | | | Signed-off-by: Isaac Huang <[email protected]>
* | DLPX-44812 integrate EP-220 large memory scalabilityDavid Quigley2016-11-2911-55/+235
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* Add -c to zpool iostat & status to run commandTony Hutter2016-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a command (-c) option to zpool status and zpool iostat. The -c option allows you to run an arbitrary command on each vdev and display the first line of output in zpool status/iostat. The environment vars VDEV_PATH and VDEV_UPATH are set to the vdev's path and "underlying path" before running the command. For device mapper, multipath, or partitioned vdevs, VDEV_UPATH is the actual underlying /dev/sd* disk. This can be useful if the command you're running requires a /dev/sd* device. The patch also uses /sys/block/<dev>/slaves/ to lookup the underlying device instead of using libdevmapper. This not only removes the libdevmapper requirement at build time, but also allows you to resolve device mapper devices without being root. This means that UDEV_UPATH get set correctly when running zpool status/iostat as an unprivileged user. Example: $ zpool status -c 'echo I am $VDEV_PATH, $VDEV_UPATH' NAME STATE READ WRITE CKSUM mypool ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 mpatha ONLINE 0 0 0 I am /dev/mapper/mpatha, /dev/sdc sdb ONLINE 0 0 0 I am /dev/sdb1, /dev/sdb Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #5368
* Allow zfs unshare <protocol> -aLOLi2016-11-291-0/+1
| | | | | | | | | | | | | | | | | | Allow `zfs unshare <protocol> -a` command to share or unshare all datasets of a given protocol, nfs or smb. Additionally, enable most of ZFS Test Suite zfs_share/zfs_unshare test cases. To work around some Illumos-specific functionalities ($SHARE/$UNSHARE) some function wrappers were added around them. Finally, fix and issue in smb_is_share_active() that would leave SMB shares exported when invoking 'zfs unshare -a' Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #3238 Closes #5367
* Fix coverity defects: CID 147540, 147542cao2016-11-091-1/+1
| | | | | | | | | | | CID 147540: unsigned_compare - Cast nsec to a int32_t to properly detect the expected overflow. CID 147542: unsigned_compare - intval can never be less than ZIO_FAILURE_MODE_WAIT which is defined to be zero. Remove this useless check. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: cao.xuewen <[email protected]> Closes #5379
* Export symbol dmu_objset_userobjspace_upgradablejxiong2016-11-091-8/+1
| | | | | | | | | It's used by Lustre to determine if the objset can be upgraded. The inline version doesn't work because dmu_objset_is_snapshot() is not exported. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Jinshan Xiong <[email protected]> Closes #5385
* Linux 3.14 compat: assign inode->set_acltuxoko2016-11-091-1/+1
| | | | | | | | | | | | | Linux 3.14 introduces inode->set_acl(). Normally, acl modification will come from setxattr, which will handle by the acl xattr_handler, and we already handles that well. However, nfsd will directly calls inode->set_acl or return error if it doesn't exists. Reviewed-by: Tim Chase <[email protected]> Reviewed-by: Massimo Maggi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Closes #5371 Closes #5375
* Use set_cached_acl and forget_cached_acl when possibleChunwei Chen2016-11-071-6/+6
| | | | | | | | | Originally, these two function are inline, so their usability is tied to posix_acl_release. However, since Linux 3.14, they became EXPORT_SYMBOL, so we can always use them. In this patch, we create an independent test for these two functions so we can use them when possible. Signed-off-by: Chunwei Chen <[email protected]>
* Batch free zpl_posix_acl_releaseChunwei Chen2016-11-071-8/+3
| | | | | | | | | | | | | | | | | | | | | | | Currently every calls to zpl_posix_acl_release will schedule a delayed task, and each delayed task will add a timer. This used to be fine except for possibly bad performance impact. However, in Linux 4.8, a new timer wheel implementation[1] is introduced. In this new implementation, the larger the delay, the less accuracy the timer is. So when we have a flood of timer from zpl_posix_acl_release, they will expire at the same time. Couple with the fact that task_expire will do linear search with lock held. This causes an extreme amount of contention inside interrupt and would actually lockup the system. We fix this by doing batch free to prevent a flood of delayed task. Every call to zpl_posix_acl_release will put the posix_acl to be freed on a lockless list. Every batch window, 1 sec, the zpl_posix_acl_free will fire up and free every posix_acl that passed the grace period on the list. This way, we only have one delayed task every second. [1] https://lwn.net/Articles/646950/ Signed-off-by: Chunwei Chen <[email protected]>
* Fix 'zpool import' detection issuesBrian Behlendorf2016-11-071-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch addresses multiple 'zpool import' block device indentification problems which are most likely to occur on a system configured to use blkid, by_vdev paths, multipath and failover. The symptom most commonly observed is the import uses different path names to import the pool than would normally be expected. * When using blkid to identify vdevs the listed devices may be added to the cache in any order. In order to apply the preferred search order heuristic a zfs_path_order() function was added to calculate the order given full path names. * Since it's possible to have multiple block devices with different vdev guids which refer to the same ZPOOL_CONFIG_PATH the slice cache must be indexed by guid and name. By avoiding collisions the preferred ordering can be maintaining even when multiple block devices claim the same ZPOOL_CONFIG_PATH. The preferred sorting by partition was never benefitial for a Linux system and was removed as part of this change. * When adding entries to the blkid cache avl_find/avl_insert are used instead of avl_add because collisions are possible and must be handled gracefully. * For pools using multipath devices there are, at a minimum, three devices where a vdev label may be read. They are the dm-* device and each underlying /dev/sd* device. Due to the way the block cache is implemented each of these devices may have a different cached copy of the vdev label. This can result in "ghost pools" which appear to persist even after a 'zpool labelclear' has been done to the dm-* device. In order to prevent this the vdev label is read with O_DIRECT in order to bypass any caching to get the on-disk version. * When opening a block device verify that vdev guid read from the disk matches the expected vdev guid. This allows for bad labels to be filtered out. Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #5359
* Add superscalar fletcher4Romain Dolbeau2016-11-041-0/+7
| | | | | | | | | | | | This is the Fletcher4 algorithm implemented in pure C, but using multiple counters using algorithms identical to those used for SSE/NEON and AVX2. This allows for faster execution on core with strong superscalar capabilities but weak SIMD capabilities. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Romain Dolbeau <[email protected]> Closes #5317
* Add support for O_TMPFILEChunwei Chen2016-11-042-0/+3
| | | | | | | | | | | | | | | Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <[email protected]>
* Fix unlinked file cannot do xattr operationsChunwei Chen2016-11-041-0/+1
| | | | | | | | | | | | | | | | | Currently, doing things like fsetxattr(2) on an unlinked file will result in ENODATA. There's two places that cause this: zfs_dirent_lock and zfs_zget. The fix in zfs_dirent_lock is pretty straightforward. In zfs_zget though, we need it to not return error when the zp is unlinked. This is a pretty big change in behavior, but skimming through all the callers, I don't think this change would cause any problem. Also there's nothing preventing z_unlinked from being set after the z_lock mutex is dropped before but before zfs_zget returns anyway. The rest of the stuff is to make sure we don't log xattr stuff when owner is unlinked. Signed-off-by: Chunwei Chen <[email protected]>
* Add parity generation/rebuild using AVX-512 for x86-64Romain Dolbeau2016-11-021-0/+6
| | | | | | | | | | | | | | | avx512f should work on all AVX512 hardware, since it only uses Foundation instructions. avx512bw should be faster on hardware supporting the AVW512BW extension. We can use full-width pshufb (instead of relying on the 256 bits AVX2 pshufb). As a side-effect, the code is also unrolled more. Reviewed-by: Richard Laager <[email protected]> Reviewed-by: Gvozden Neskovic <[email protected]> Reviewed-by: Jinshan Xiong <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Romain Dolbeau <[email protected]> Closes #5219
* Fix 32-bit maximum volume sizeBrian Behlendorf2016-11-021-0/+3
| | | | | | | | | | | A limit of 1TB exists for zvols on 32-bit systems. Update the code to correctly reflect this limitation in a similar manor as the OpenZFS implementation. Reviewed-by: Tom Caputi <[email protected]> Reviewed-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #5347
* Add TASKQID_INVALIDBrian Behlendorf2016-11-021-0/+2
| | | | | | | | | | | | Add the TASKQID_INVALID macros and update callers to use the macro instead of testing against 0. There is no functional change even though the functions in zfs_ctldir.c incorrectly used -1 instead of 0. Reviewed-by: Tom Caputi <[email protected]> Reviewed-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #5347
* Fix coverity defects: CID 147548cao2016-10-311-0/+1
| | | | | | | CID 147548: Type:Dereference null return value Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: cao.xuewen <[email protected]> Closes #5321
* Fix lookup_bdev() on UbuntuHajo Möller2016-10-261-4/+13
| | | | | | | | | | | | Ubuntu added support for checking inode permissions to lookup_bdev() in kernel commit 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged in 4.4.0-6.21). Upstream bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517 This patch adds a test for Ubuntu's variant of lookup_bdev() to configure and calls the function in the correct way. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Hajo Möller <[email protected]> Closes #5336
* Do not upgrade userobj accounting for snapshot datasetjxiong2016-10-251-0/+1
| | | | | | | | | | | | | | 'zfs recv' could disown a living objset without calling dmu_objset_disown(). This will cause the problem that the objset would be released while the upgrading thread is still running. This patch avoids the problem by checking if a dataset is a snapshot before calling dmu_objset_userobjspace_upgrade(). Snapshots are immutable and therefore it doesn't make sense to update them. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Jinshan Xiong <[email protected]> Closes #5295 Closes #5328
* Turn on/off enclosure slot fault LED even when disk isn't presentTony Hutter2016-10-244-2/+8
| | | | | | | | | | | | | | | | | Previously when a drive faulted, the statechange-led.sh script would lookup the drive's LED sysfs entry in /sys/block/sd*/device/enclosure_device, and turn it on. During testing we noticed that if you pulled out a drive, or if the drive was so badly broken that it no longer appeared to Linux, that the /sys/block/sd* path would be removed, and the script could not lookup the LED entry. To fix this, this patch looks up the disks's more persistent "/sys/class/enclosure/X:X:X:X/Slot N" LED sysfs path at pool import. It then passes that path to the statechange-led script to use, rather than having the script look it up on the fly. This allows the script to turn on/off the slot LEDs even when the drive is missing. Closes #5309 Closes #2375
* Fletcher4 algorithm implemented in pure NEON for Aarch64 / ARMv8 64 bitsRomain Dolbeau2016-10-211-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | This is not useful on micro-architecture with a weak NEON implementation (only 64 bits); the native version is slower & the byteswap barely faster than scalar. On A53 or A57, it's a small improvement on scalar but OK for byteswap. Results from an A53 system: 0 0 0x01 -1 0 1499068294333000 1499101101878000 implementation native byteswap scalar 1008227510 755880264 aarch64_neon 1198098720 1044818671 fastest aarch64_neon aarch64_neon Results from a A57 system: 0 0 0x01 -1 0 4407214734807033 4407233933777404 implementation native byteswap scalar 2302071241 1124873346 aarch64_neon 2542214946 2245570352 fastest aarch64_neon aarch64_neon Reviewed-by: Gvozden Neskovic <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Romain Dolbeau <[email protected]> Closes #5248
* Fix coverity defects: CID 147472cao2016-10-201-0/+2
| | | | | | | CID 147472: Type: 'Constant' variable guards dead code Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: cao.xuewen <[email protected]> Closes #5288
* Linux 4.9 compat: inode_change_ok() renamed setattr_prepare()Brian Behlendorf2016-10-201-0/+11
| | | | | | | | | | | | In torvalds/linux@31051c8 the inode_change_ok() function was renamed setattr_prepare() and updated to take a dentry ratheri than an inode. Update the code to call the setattr_prepare() and add a wrapper function which call inode_change_ok() for older kernels. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Requires-spl: refs/pull/581/head
* Multipath autoreplace, control enclosure LEDs, event rate limitingTony Hutter2016-10-195-1/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | 1. Enable multipath autoreplace support for FMA. This extends FMA autoreplace to work with multipath disks. This requires libdevmapper to be installed at build time. 2. Turn on/off fault LEDs when VDEVs become degraded/faulted/online Set ZED_USE_ENCLOSURE_LEDS=1 in zed.rc to have ZED turn on/off the enclosure LED for a drive when a drive becomes FAULTED/DEGRADED. Your enclosure must be supported by the Linux SES driver for this to work. The enclosure LED scripts work for multipath devices as well. The scripts will clear the LED when the fault is cleared. 3. Rate limit ZIO delay and checksum events so as not to flood ZED ZIO delay and checksum events are rate limited to 5/sec in the zfs module. Reviewed-by: Richard Laager <[email protected]> Reviewed by: Don Brady <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #2449 Closes #3017 Closes #5159
* OpenZFS 7090 - zfs should throttle allocationsDon Brady2016-10-138-52/+157
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OpenZFS 7090 - zfs should throttle allocations Authored by: George Wilson <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: Sebastien Roy <[email protected]> Approved by: Matthew Ahrens <[email protected]> Ported-by: Don Brady <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> When write I/Os are issued, they are issued in block order but the ZIO pipeline will drive them asynchronously through the allocation stage which can result in blocks being allocated out-of-order. It would be nice to preserve as much of the logical order as possible. In addition, the allocations are equally scattered across all top-level VDEVs but not all top-level VDEVs are created equally. The pipeline should be able to detect devices that are more capable of handling allocations and should allocate more blocks to those devices. This allows for dynamic allocation distribution when devices are imbalanced as fuller devices will tend to be slower than empty devices. The change includes a new pool-wide allocation queue which would throttle and order allocations in the ZIO pipeline. The queue would be ordered by issued time and offset and would provide an initial amount of allocation of work to each top-level vdev. The allocation logic utilizes a reservation system to reserve allocations that will be performed by the allocator. Once an allocation is successfully completed it's scheduled on a given top-level vdev. Each top-level vdev maintains a maximum number of allocations that it can handle (mg_alloc_queue_depth). The pool-wide reserved allocations (top-levels * mg_alloc_queue_depth) are distributed across the top-level vdevs metaslab groups and round robin across all eligible metaslab groups to distribute the work. As top-levels complete their work, they receive additional work from the pool-wide allocation queue until the allocation queue is emptied. OpenZFS-issue: https://www.illumos.org/issues/7090 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/4756c3d7 Closes #5258 Porting Notes: - Maintained minimal stack in zio_done - Preserve linux-specific io sizes in zio_write_compress - Added module params and documentation - Updated to use optimize AVL cmp macros
* Fletcher4: Incremental updates and ctx calculationBrian Behlendorf2016-10-071-3/+35
|\ | | | | | | | | | | | | | | | | Fixes ABI issues with fletcher4 code, adds support for incremental updates, and adds ztest method for testing. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Chunwei Chen <[email protected]> Signed-off-by: Gvozden Neskovic <[email protected]> Closes #5164
| * Fletcher4: save/reload implementation contextGvozden Neskovic2016-10-051-3/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | Init, compute, and fini methods are changed to work on internal context object. This is necessary because ABI does not guarantee that SIMD registers will be preserved on function calls. This is technically the case in Linux kernel in between `kfpu_begin()/kfpu_end()`, but it breaks user-space tests and some kernels that don't require disabling preemption for using SIMD (osx). Use scalar compute methods in-place for small buffers, and when the buffer size does not meet SIMD size alignment. Signed-off-by: Gvozden Neskovic <[email protected]>
* | Add support for user/group dnode accounting & quotaJinshan Xiong2016-10-079-3/+52
|/ | | | | | | | | | | | | | | | This patch tracks dnode usage for each user/group in the DMU_USER/GROUPUSED_OBJECT ZAPs. ZAP entries dedicated to dnode accounting have the key prefixed with "obj-" followed by the UID/GID in string format (as done for the block accounting). A new SPA feature has been added for dnode accounting as well as a new ZPL version. The SPA feature must be enabled in the pool before upgrading the zfs filesystem. During the zfs version upgrade, a "quotacheck" will be executed by marking all dnode as dirty. ZoL-bug-id: https://github.com/zfsonlinux/zfs/issues/3500 Signed-off-by: Jinshan Xiong <[email protected]> Signed-off-by: Johann Lombardi <[email protected]>
* OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-RTony Hutter2016-10-0312-12/+520
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reviewed by: George Wilson <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Reviewed by: Richard Lowe <[email protected]> Approved by: Garrett D'Amore <[email protected]> Ported by: Tony Hutter <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/4185 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/45818ee Porting Notes: This code is ported on top of the Illumos Crypto Framework code: https://github.com/zfsonlinux/zfs/pull/4329/commits/b5e030c8dbb9cd393d313571dee4756fbba8c22d The list of porting changes includes: - Copied module/icp/include/sha2/sha2.h directly from illumos - Removed from module/icp/algs/sha2/sha2.c: #pragma inline(SHA256Init, SHA384Init, SHA512Init) - Added 'ctx' to lib/libzfs/libzfs_sendrecv.c:zio_checksum_SHA256() since it now takes in an extra parameter. - Added CTASSERT() to assert.h from for module/zfs/edonr_zfs.c - Added skein & edonr to libicp/Makefile.am - Added sha512.S. It was generated from sha512-x86_64.pl in Illumos. - Updated ztest.c with new fletcher_4_*() args; used NULL for new CTX argument. - In icp/algs/edonr/edonr_byteorder.h, Removed the #if defined(__linux) section to not #include the non-existant endian.h. - In skein_test.c, renane NULL to 0 in "no test vector" array entries to get around a compiler warning. - Fixup test files: - Rename <sys/varargs.h> -> <varargs.h>, <strings.h> -> <string.h>, - Remove <note.h> and define NOTE() as NOP. - Define u_longlong_t - Rename "#!/usr/bin/ksh" -> "#!/bin/ksh -p" - Rename NULL to 0 in "no test vector" array entries to get around a compiler warning. - Remove "for isa in $($ISAINFO); do" stuff - Add/update Makefiles - Add some userspace headers like stdio.h/stdlib.h in places of sys/types.h. - EXPORT_SYMBOL *_Init/*_Update/*_Final... routines in ICP modules. - Update scripts/zfs2zol-patch.sed - include <sys/sha2.h> in sha2_impl.h - Add sha2.h to include/sys/Makefile.am - Add skein and edonr dirs to icp Makefile - Add new checksums to zpool_get.cfg - Move checksum switch block from zfs_secpolicy_setprop() to zfs_check_settable() - Fix -Wuninitialized error in edonr_byteorder.h on PPC - Fix stack frame size errors on ARM32 - Don't unroll loops in Skein on 32-bit to save stack space - Add memory barriers in sha2.c on 32-bit to save stack space - Add filetest_001_pos.ksh checksum sanity test - Add option to write psudorandom data in file_write utility
* Add parity generation/rebuild using 128-bits NEON for Aarch64Romain Dolbeau2016-10-033-0/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This re-use the framework established for SSE2, SSSE3 and AVX2. However, GCC is using FP registers on Aarch64, so unlike SSE/AVX2 we can't rely on the registers being left alone between ASM statements. So instead, the NEON code uses C variables and GCC extended ASM syntax. Note that since the kernel explicitly disable vector registers, they have to be locally re-enabled explicitly. As we use the variable's number to define the symbolic name, and GCC won't allow duplicate symbolic names, numbers have to be unique. Even when the code is not going to be used (e.g. the case for 4 registers when using the macro with only 2). Only the actually used variables should be declared, otherwise the build will fails in debug mode. This requires the replacement of the XOR(X,X) syntax by a new ZERO(X) macro, which does the same thing but without repeating the argument. And perhaps someday there will be a machine where there is a more efficient way to zero a register than XOR with itself. This affects scalar, SSE2, SSSE3 and AVX2 as they need the new macro. It's possible to write faster implementations (different scheduling, different unrolling, interleaving NEON and scalar, ...) for various cores, but this one has the advantage of fitting in the current state of the code, and thus is likely easier to review/check/merge. The only difference between aarch64-neon and aarch64-neonx2 is that aarch64-neonx2 unroll some functions some more. Reviewed-by: Gvozden Neskovic <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Romain Dolbeau <[email protected]> Closes #4801
* fix: Shift exponent too largeGvozden Neskovic2016-09-292-4/+4
| | | | | | | | | | | | Undefined operation is reported by running ztest (or zloop) compiled with GCC UndefinedBehaviorSanitizer. Error only happens on top level of dnode indirection with large enough offset values. Logically, left shift operation would work, but bit shift semantics in C, and limitation of uint64_t, do not produce desired result. Issue #5059, #4883 Signed-off-by: Gvozden Neskovic <[email protected]>
* OpenZFS 7230 - add assertions to dmu_send_impl() to verify that stream ↵kernelOfTruth aka. kOT, Gentoo user2016-09-221-0/+2
| | | | | | | | | | | | | | | includes BEGIN and END records Authored by: Matt Krantz <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Approved by: Robert Mustacchi <[email protected]> Ported-by: kernelOfTruth <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7230 OpenZFS-commit: https://github.com/illumos/illumos-gate/commit/12b90ee2 Closes #5112
* Fix coverity defectscao2016-09-201-2/+0
| | | | | | | | | | | | | | | | Fix coverity defects: coverity scan CID:147623, Type: Resource leak. coverity scan CID:147622, Type: Resource leak. reason: zpool_open zhp, but not zpool_close zhp. so resource leak. coverity scan CID:147621, Type: Resource fd leak. coverity scan CID:147620, Type: Resource fd leak. reason: do_write do_read open file fd,but exception not close fd. delete unuse definition DMU_OS_IS_L2COMPRESSIBLE. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: cao.xuewen <[email protected]> Closes #5137
* DLPX-44733 combine arc_buf_alloc_impl() with arc_buf_clone()Dan Kimmel2016-09-131-1/+1
| | | | | | | | Authored by: Dan Kimmel <[email protected]> Reviewed by: Tom Caputi <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Ported by: David Quigley <[email protected]> Issue #5078
* Remove lint suppression from dmu.h and unnecessary dmu.h include in spa.hDan Kimmel2016-09-132-9/+2
| | | | | | | | Authored by: Dan Kimmel <[email protected]> Reviewed by: Tom Caputi <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Ported by: David Quigley <[email protected]> Issue #5078
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