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36283ca233
mirror_zfs/module/zfs
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Max Grossman 36283ca233 Illumos 5138 - add tunable for maximum number of blocks freed in one txg 
Reviewed by: Adam Leventhal <adam.leventhal@delphix.com>
Reviewed by: Mattew Ahrens <mahrens@delphix.com>
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Richard Elling <richard.elling@gmail.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/5138
  https://github.com/illumos/illumos-gate/commit/af3465d

Porting notes:

Because support for exposing a uint64_t parameter wasn't added
until v3.17-rc1 the zfs_free_max_blocks variable has been declared
as a unsigned long.  This is already far larger than required and
it allows us to avoid additional autoconf compatibility code.

The default value has been set to 100,000 on Linux instead of
ULONG_MAX which is used on Illumos.  This was done to limit the
number of outstanding IOs in the system when snapshots are destroyed.
This helps ensure individual TXG sync times are kept reasonable and
memory isn't wasted managing a huge backlog of outstanding IOs.

Ported by: Turbo Fredriksson <turbo@bayour.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2675
Closes #2581
2014-09-23 14:26:34 -07:00
..
arc.c Illumos 5034 - ARC's buf_hash_table is too small 2014-08-26 16:14:49 -07:00
blkptr.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bplist.c Illumos #3464 2013-09-04 16:01:24 -07:00
bpobj.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bptree.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dbuf_stats.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
dbuf.c Illumos 5174 - add sdt probe for blocked read in dbuf_read() 2014-09-22 14:20:25 -07:00
ddt_zap.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
ddt.c Change the default 'zfs_dedup_prefetch' value to '0' 2014-09-04 09:50:45 -07:00
dmu_diff.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_object.c Illumos 4171, 4172 2014-07-25 16:40:07 -07:00
dmu_objset.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_send.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_traverse.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_tx.c Improve reporting of tx assignment wait times 2014-03-04 12:22:24 -08:00
dmu_zfetch.c Use enum type(zfetch_dirn_t) instead 2014-01-23 12:56:33 -08:00
dmu.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dnode_sync.c Illumos 5117 - spacemap reallocation can cause corruption 2014-09-08 09:42:39 -07:00
dnode.c Illumos 5139 - SEEK_HOLE failed to report a hole at end of file 2014-09-23 10:38:45 -07:00
dsl_bookmark.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
dsl_dataset.c Fix invalid locking order in rename operation 2014-09-04 09:50:46 -07:00
dsl_deadlist.c Illumos #3104: eliminate empty bpobjs 2013-01-08 10:35:43 -08:00
dsl_deleg.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
dsl_destroy.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dsl_dir.c Illumos 4171, 4172 2014-07-25 16:40:07 -07:00
dsl_pool.c Illumos 4390 - I/O errors can corrupt space map when deleting fs/vol 2014-08-04 11:50:52 -07:00
dsl_prop.c Check the dataset type more rigorously when fetching properties. 2014-05-06 10:41:46 -07:00
dsl_scan.c Illumos 5138 - add tunable for maximum number of blocks freed in one txg 2014-09-23 14:26:34 -07:00
dsl_synctask.c Export symbols dsl_sync_task{_nowait} 2014-03-07 10:01:36 -08:00
dsl_userhold.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
fm.c Fixed memory leaks in zevent handling 2014-08-20 10:45:16 -07:00
gzip.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
lz4.c Illumos #4936 fix potential overflow in lz4 2014-07-01 14:10:47 -07:00
lzjb.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
Makefile.in Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
metaslab.c Don't upgrade a metaslab when the pool is not writable 2014-08-18 08:47:19 -07:00
range_tree.c Illumos 4976-4984 - metaslab improvements 2014-08-18 08:40:49 -07:00
refcount.c Illumos #3464 2013-09-04 16:01:24 -07:00
rrwlock.c Fix several new KM_SLEEP warnings 2013-09-25 15:44:22 -07:00
sa.c Calculate header size correctly in sa_find_sizes() 2014-05-19 11:55:50 -07:00
sha256.c Add linux sha2 support 2010-08-31 13:41:59 -07:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Implement -t option to zpool import for temporary pool names 2014-03-20 12:05:30 -07:00
spa_errlog.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
spa_history.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
spa_misc.c Illumos 4753 - increase number of outstanding async writes when sync task is waiting 2014-09-23 13:50:55 -07:00
spa_stats.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
spa.c Illumos 4970-4974 - extreme rewind enhancements 2014-08-26 16:29:57 -07:00
space_map.c Illumos 4976-4984 - metaslab improvements 2014-08-18 08:40:49 -07:00
space_reftree.c Illumos #4101, #4102, #4103, #4105, #4106 2014-07-22 09:39:16 -07:00
txg.c Illumos 4753 - increase number of outstanding async writes when sync task is waiting 2014-09-23 13:50:55 -07:00
uberblock.c Illumos #3598 2013-10-31 14:58:04 -07:00
unique.c Switch KM_SLEEP to KM_PUSHPAGE 2012-08-27 12:01:37 -07:00
vdev_cache.c Illumos 4370, 4371 2014-07-28 14:29:58 -07:00
vdev_disk.c Illumos #4374 2014-07-30 09:20:35 -07:00
vdev_file.c Honor zfs_nocacheflush for file vdevs 2014-05-19 13:30:48 -07:00
vdev_label.c Fix function call with uninitialized value in vdev_inuse 2014-09-23 10:32:45 -07:00
vdev_mirror.c Illumos #4045 write throttle & i/o scheduler performance work 2013-12-06 09:32:43 -08:00
vdev_missing.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev_queue.c Illumos 4753 - increase number of outstanding async writes when sync task is waiting 2014-09-23 13:50:55 -07:00
vdev_raidz.c Illumos #4045 write throttle & i/o scheduler performance work 2013-12-06 09:32:43 -08:00
vdev_root.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev.c Illumos 5161 - add tunable for number of metaslabs per vdev 2014-09-23 10:00:02 -07:00
zap_leaf.c Illumos #4374 2014-07-30 09:20:35 -07:00
zap_micro.c Add object type checking to zap_lockdir() 2014-09-08 09:15:38 -07:00
zap.c Illumos #4374 2014-07-30 09:20:35 -07:00
zfeature_common.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zfeature.c Illumos 4370, 4371 2014-07-28 14:29:58 -07:00
zfs_acl.c Allow chown/chgrp when no ACL SAs exist. 2014-01-23 11:07:29 -08:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_ctldir.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
zfs_debug.c Illumos 4390 - I/O errors can corrupt space map when deleting fs/vol 2014-08-04 11:50:52 -07:00
zfs_dir.c Revert "Revert "Revert "Fix unlink/xattr deadlock""" 2014-08-11 16:12:36 -07:00
zfs_fm.c Fixed memory leaks in zevent handling 2014-08-20 10:45:16 -07:00
zfs_fuid.c Illumos #3522 2013-10-30 14:51:27 -07:00
zfs_ioctl.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zfs_log.c Only commit the ZIL once in zpl_writepages() (msync() case). 2013-11-23 15:08:29 -08:00
zfs_onexit.c Illumos #3598 2013-10-31 14:58:04 -07:00
zfs_replay.c Linux AIO Support 2014-09-05 15:11:43 -07:00
zfs_rlock.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zfs_sa.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zfs_vfsops.c Improve handling of filesystem versions 2014-09-03 09:17:14 -07:00
zfs_vnops.c Illumos 5139 - SEEK_HOLE failed to report a hole at end of file 2014-09-23 10:38:45 -07:00
zfs_znode.c Fix z_teardown_inactive_lock deadlock 2014-09-11 09:11:45 -07:00
zil.c Illumos 5140 - message about "%recv could not be opened" is printed when booting after crash 2014-09-18 15:04:59 -07:00
zio_checksum.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_compress.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_inject.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
zio.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_ctldir.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_export.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_file.c Implement fallocate FALLOC_FL_PUNCH_HOLE 2014-09-08 13:52:25 -07:00
zpl_inode.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_super.c Prune metadata from ghost lists in arc_adjust_meta 2014-02-21 16:10:49 -08:00
zpl_xattr.c Linux AIO Support 2014-09-05 15:11:43 -07:00
zrlock.c Export ZFS symbols needed by Lustre. 2010-09-17 16:24:15 -07:00
zvol.c Use long holds in zvol_set_volsize() 2014-01-14 14:46:12 -08:00