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a032ac4b38
mirror_zfs/module/zfs
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Brian Behlendorf a032ac4b38 OpenZFS 8558, 8602 - lwp_create() returns EAGAIN 
8558 lwp_create() returns EAGAIN on system with more than 80K ZFS filesystems

On a system with more than 80K ZFS filesystems, we've seen cases
where lwp_create() will start to fail by returning EAGAIN. The
problem being, for each of those 80K ZFS filesystems, a taskq will
be created for each dataset as part of the ZIL for each dataset.

Porting Notes:
- The new nomem taskq kstat was dropped.
- Added module options and documentation for new tunings
  zfs_zil_clean_taskq_nthr_pct, zfs_zil_clean_taskq_minalloc,
  zfs_zil_clean_taskq_maxalloc, and zfs_sync_taskq_batch_pct.

Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Sebastien Roy <sebastien.roy@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Authored by: Prakash Surya <prakash.surya@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Chris Dunlop <chris@onthe.net.au>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/8558
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/216d772

8602 remove unused "dp_early_sync_tasks" field from "dsl_pool" structure

Reviewed by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Authored by: Prakash Surya <prakash.surya@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Chris Dunlop <chris@onthe.net.au>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/8602
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/2bcb545
Closes #6779
2017-10-26 12:57:53 -07:00
..
abd.c Fix abdstats kstat on 32-bit systems 2017-10-06 11:23:12 -07:00
arc.c Fixes for #6639 2017-10-11 16:55:50 -04:00
blkptr.c Use SET_ERROR for constant non-zero return codes 2017-08-02 21:16:12 -07:00
bplist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
bpobj.c Don't dirty bpobj if it has no entries 2017-05-26 11:42:10 -07:00
bptree.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
bqueue.c Call cv_signal() with mutex held 2017-06-26 14:36:49 -07:00
dbuf_stats.c Improved dnode allocation and dmu_hold_impl() 2017-09-05 16:15:04 -07:00
dbuf.c Fixes for #6639 2017-10-11 16:55:50 -04:00
ddt_zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dmu_diff.c OpenZFS 6950 - ARC should cache compressed data 2016-09-13 09:58:33 -07:00
dmu_object.c Improved dnode allocation and dmu_hold_impl() 2017-09-05 16:15:04 -07:00
dmu_objset.c Encryption patch follow-up 2017-10-11 16:54:48 -04:00
dmu_send.c Fix for #6706 2017-10-11 16:58:39 -04:00
dmu_traverse.c Fixes for #6639 2017-10-11 16:55:50 -04:00
dmu_tx.c Export symbol dmu_tx_mark_netfree() 2017-09-20 09:30:24 -07:00
dmu_zfetch.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
dmu.c Fix ASSERT in dmu_free_long_object_raw() 2017-10-18 10:08:36 -07:00
dnode_sync.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dnode.c Improved dnode allocation and dmu_hold_impl() 2017-09-05 16:15:04 -07:00
dsl_bookmark.c OpenZFS 8377 - Panic in bookmark deletion 2017-06-30 11:11:01 -07:00
dsl_crypt.c Fix for #6706 2017-10-11 16:58:39 -04:00
dsl_dataset.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_deadlist.c OpenZFS 5428 - provide fts(), reallocarray(), and strtonum() 2017-07-08 20:35:35 -07:00
dsl_deleg.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
dsl_destroy.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_dir.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_pool.c OpenZFS 8558, 8602 - lwp_create() returns EAGAIN 2017-10-26 12:57:53 -07:00
dsl_prop.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_scan.c OpenZFS 8414 - Implemented zpool scrub pause/resume 2017-08-24 10:27:20 -07:00
dsl_synctask.c Illumos 4951 - ZFS administrative commands should use reserved space 2015-05-04 09:41:10 -07:00
dsl_userhold.c OpenZFS 5428 - provide fts(), reallocarray(), and strtonum() 2017-07-08 20:35:35 -07:00
edonr_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
fm.c Use SET_ERROR for constant non-zero return codes 2017-08-02 21:16:12 -07:00
gzip.c GZIP compression offloading with QAT accelerator 2017-03-22 17:58:47 -07:00
hkdf.c Encryption patch follow-up 2017-10-11 16:54:48 -04:00
lz4.c Fix LZ4_uncompress_unknownOutputSize caused panic 2017-05-19 13:45:46 -07:00
lzjb.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
Makefile.in Encryption patch follow-up 2017-10-11 16:54:48 -04:00
metaslab.c Relax ASSERT for #6526 2017-10-11 16:53:37 -04:00
mmp.c Reimplement vdev_random_leaf and rename it 2017-09-22 14:29:26 -07:00
multilist.c OpenZFS 7968 - multi-threaded spa_sync() 2017-03-20 18:36:00 -07:00
pathname.c Add pn_alloc()/pn_free() functions 2016-04-21 09:49:25 -07:00
policy.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
qat_compress.c Support integration with new QAT products 2017-10-20 11:11:25 -07:00
qat_compress.h GZIP compression offloading with QAT accelerator 2017-03-22 17:58:47 -07:00
range_tree.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
refcount.c Linux 4.11 compat: avoid refcount_t name conflict 2017-02-28 16:10:18 -08:00
rrwlock.c Fix spelling 2017-01-03 11:31:18 -06:00
sa.c Fix coverity defects: CID 147474 2017-10-10 16:41:47 -07:00
sha256.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
skein_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
spa_boot.c
spa_config.c Remove vn_rename and vn_remove dependency 2017-10-19 10:06:55 -07:00
spa_errlog.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
spa_history.c Emit history events for 'zpool create' 2017-10-23 09:45:59 -07:00
spa_misc.c vdev_mirror: kstat observables for preferred vdev 2017-08-21 10:05:54 -07:00
spa_stats.c Update the default for zfs_txg_history 2017-09-29 15:58:52 -07:00
spa.c Emit history events for 'zpool create' 2017-10-23 09:45:59 -07:00
space_map.c OpenZFS 8023 - Panic destroying a metaslab deferred range tree 2017-04-09 16:12:35 -07:00
space_reftree.c OpenZFS 6328 - Fix cstyle errors in zfs codebase 2017-01-12 09:42:11 -08:00
trace.c OpenZFS 6531 - Provide mechanism to artificially limit disk performance 2016-05-26 10:11:51 -07:00
txg.c Simplify threads, mutexs, cvs and rwlocks 2017-08-11 08:51:44 -07:00
uberblock.c Multi-modifier protection (MMP) 2017-07-13 13:54:00 -04:00
unique.c Performance optimization of AVL tree comparator functions 2016-08-31 14:35:34 -07:00
vdev_cache.c Fix wrong offset args in vdev_cache_write 2017-03-28 11:06:22 -07:00
vdev_disk.c Fix printk() calls missing log level 2017-09-25 10:38:27 -07:00
vdev_file.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev_label.c Use linear abd in vdev_copy_uberblocks() 2017-10-05 19:30:02 -07:00
vdev_mirror.c vdev_mirror: kstat observables for preferred vdev 2017-08-21 10:05:54 -07:00
vdev_missing.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev_queue.c vdev_mirror: load balancing fixes 2017-08-21 10:05:16 -07:00
vdev_raidz_math_aarch64_neon_common.h ABD raidz NEON support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_aarch64_neon.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math_aarch64_neonx2.c ABD raidz NEON support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx2.c ABD raidz avx512f support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_avx512bw.c ABD: Adapt avx512bw raidz assembly 2016-12-15 17:31:33 -08:00
vdev_raidz_math_avx512f.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
vdev_raidz_math_impl.h codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math_scalar.c ABD Vectorized raidz 2016-11-29 14:34:33 -08:00
vdev_raidz_math_sse2.c ABD raidz avx512f support 2016-11-29 14:34:33 -08:00
vdev_raidz_math_ssse3.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz_math.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
vdev_raidz.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
vdev_root.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zap_leaf.c Use SET_ERROR for constant non-zero return codes 2017-08-02 21:16:12 -07:00
zap_micro.c Fix dnode allocation race 2017-08-08 08:38:53 -07:00
zap.c Use SET_ERROR for constant non-zero return codes 2017-08-02 21:16:12 -07:00
zfeature.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zfs_acl.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zfs_byteswap.c
zfs_ctldir.c Use SET_ERROR for constant non-zero return codes 2017-08-02 21:16:12 -07:00
zfs_debug.c Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
zfs_dir.c Rename zfs_sb_t -> zfsvfs_t 2017-03-10 09:51:33 -08:00
zfs_fm.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zfs_fuid.c Rename zfs_sb_t -> zfsvfs_t 2017-03-10 09:51:33 -08:00
zfs_ioctl.c Added no_scrub_restart flag to zpool reopen 2017-10-26 12:26:09 -07:00
zfs_log.c OpenZFS 7578 - Fix/improve some aspects of ZIL writing 2017-06-09 09:15:37 -07:00
zfs_onexit.c zfsdev_getminor() should check for invalid file handles 2015-06-22 17:02:13 -07:00
zfs_ratelimit.c Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
zfs_replay.c Enhance comments for large dnode project 2017-08-29 09:00:28 -07:00
zfs_rlock.c Fix spelling 2017-01-03 11:31:18 -06:00
zfs_sa.c Modifying XATTRs doesnt change the ctime 2017-09-13 12:20:07 -07:00
zfs_vfsops.c Fix remounting snapshots read-write 2017-08-17 14:28:17 -07:00
zfs_vnops.c Fixes for #6639 2017-10-11 16:55:50 -04:00
zfs_znode.c misc: fix meaningless values 2017-09-19 12:19:08 -07:00
zil.c OpenZFS 8558, 8602 - lwp_create() returns EAGAIN 2017-10-26 12:57:53 -07:00
zio_checksum.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zio_compress.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
zio_crypt.c Fix for #6714 2017-10-11 16:59:42 -04:00
zio_inject.c Add corruption failure option to zinject(8) 2017-08-14 15:17:15 -07:00
zio.c Encryption patch follow-up 2017-10-11 16:54:48 -04:00
zle.c
zpl_ctldir.c Linux 4.12 compat: CURRENT_TIME removed 2017-05-10 09:30:48 -07:00
zpl_export.c Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
zpl_file.c misc: fix meaningless values 2017-09-19 12:19:08 -07:00
zpl_inode.c Linux 4.12 compat: CURRENT_TIME removed 2017-05-10 09:30:48 -07:00
zpl_super.c Restructure mount option handling 2017-03-10 09:51:41 -08:00
zpl_xattr.c Modifying XATTRs doesnt change the ctime 2017-09-13 12:20:07 -07:00
zrlock.c OpenZFS 3746 - ZRLs are racy 2017-01-23 10:35:58 -08:00
zvol.c Linux 3.14 compat: IO acct, global_page_state, etc 2017-09-16 11:00:19 -07:00