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Isaac Huang 3d6da72d18 Skip spurious resilver IO on raidz vdev 
On a raidz vdev, a block that does not span all child vdevs, excluding
its skip sectors if any, may not be affected by a child vdev outage or
failure. In such cases, the block does not need to be resilvered.
However, current resilver algorithm simply resilvers all blocks on a
degraded raidz vdev. Such spurious IO is not only wasteful, but also
adds the risk of overwriting good data.

This patch eliminates such spurious IOs.

Reviewed-by: Gvozden Neskovic <neskovic@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Isaac Huang <he.huang@intel.com>
Closes #5316
2017-05-12 17:28:03 -07:00
..
crypto
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
fm
Additional Information for Zedlets
2017-04-03 14:23:02 -07:00
fs
Make createtxg and guid properties public
2017-05-09 15:36:53 -07:00
sysevent
Bring over illumos ZFS FMA logic -- phase 1
2016-09-01 11:39:45 -07:00
abd.h
ABD optimized page allocation code
2016-11-29 14:34:33 -08:00
arc_impl.h
OpenZFS 7968 - multi-threaded spa_sync()
2017-03-20 18:36:00 -07:00
arc.h
zfs_arc_num_sublists_per_state should be common to all multilists
2017-02-15 15:49:33 -08:00
avl_impl.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
avl.h
Performance optimization of AVL tree comparator functions
2016-08-31 14:35:34 -07:00
blkptr.h
Illumos 4757, 4913
2014-08-01 14:28:05 -07:00
bplist.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
bpobj.h
Illumos 5810 - zdb should print details of bpobj
2015-05-11 15:10:24 -07:00
bptree.h
Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t
2014-08-06 14:48:41 -07:00
bqueue.h
Illumos 5960, 5925
2016-01-08 15:08:19 -08:00
dbuf.h
fix: Shift exponent too large
2016-09-29 15:55:41 -07:00
ddt.h
DLPX-44812 integrate EP-220 large memory scalability
2016-11-29 14:34:27 -08:00
dmu_impl.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
dmu_objset.h
OpenZFS 7968 - multi-threaded spa_sync()
2017-03-20 18:36:00 -07:00
dmu_send.h
DLPX-40252 integrate EP-476 compressed zfs send/receive
2016-09-13 09:58:58 -07:00
dmu_traverse.h
OpenZFS 2605, 6980, 6902
2016-06-28 13:47:02 -07:00
dmu_tx.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
dmu_zfetch.h
OpenZFS 6322 - ZFS indirect block predictive prefetch
2016-08-30 14:26:55 -07:00
dmu.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
dnode.h
OpenZFS 7968 - multi-threaded spa_sync()
2017-03-20 18:36:00 -07:00
dsl_bookmark.h
Illumos 4368, 4369.
2014-07-29 10:55:29 -07:00
dsl_dataset.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
dsl_deadlist.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
dsl_deleg.h
Add support for user/group dnode accounting & quota
2016-10-07 09:45:13 -07:00
dsl_destroy.h
Illumos #3888
2013-11-04 11:18:14 -08:00
dsl_dir.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
dsl_pool.h
OpenZFS 7968 - multi-threaded spa_sync()
2017-03-20 18:36:00 -07:00
dsl_prop.h
Illumos 6171 - dsl_prop_unregister() slows down dataset eviction.
2016-01-12 10:53:12 -08:00
dsl_scan.h
Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t
2014-08-06 14:48:41 -07:00
dsl_synctask.h
Illumos 4951 - ZFS administrative commands should use reserved space
2015-05-04 09:41:10 -07:00
dsl_userhold.h
Illumos #3740
2013-11-04 11:17:48 -08:00
edonr.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
efi_partition.h
Fix spelling
2017-01-03 11:31:18 -06:00
Makefile.am
DLPX-44812 integrate EP-220 large memory scalability
2016-11-29 14:34:27 -08:00
metaslab_impl.h
OpenZFS 7613 - ms_freetree[4] is only used in syncing context
2017-01-26 15:27:19 -08:00
metaslab.h
OpenZFS 7303 - dynamic metaslab selection
2017-01-12 11:52:56 -08:00
mntent.h
Make zfs mount according to relatime config in dataset
2016-04-05 18:55:59 -07:00
multilist.h
OpenZFS 7968 - multi-threaded spa_sync()
2017-03-20 18:36:00 -07:00
nvpair_impl.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
nvpair.h
Replace __va_list with va_list
2014-08-13 10:35:00 -07:00
pathname.h
Add pn_alloc()/pn_free() functions
2016-04-21 09:49:25 -07:00
policy.h
Add zfs allow and zfs unallow support
2016-06-07 09:16:52 -07:00
range_tree.h
Illumos #4374
2014-07-30 09:20:35 -07:00
refcount.h
Linux 4.11 compat: avoid refcount_t name conflict
2017-02-28 16:10:18 -08:00
rrwlock.h
Illumos 5008 - lock contention (rrw_exit) while running a read only load
2015-07-06 09:34:13 -07:00
sa_impl.h
Implement large_dnode pool feature
2016-06-24 13:13:21 -07:00
sa.h
Remove unused sa_update_from_cb()
2016-12-01 16:39:06 -07:00
sdt.h
Swap DTRACE_PROBE* with Linux tracepoints
2014-11-17 11:13:55 -08:00
sha2.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
skein.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
spa_boot.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
spa_checksum.h
Implementation of AVX2 optimized Fletcher-4
2016-06-02 14:30:51 -07:00
spa_impl.h
OpenZFS 7743 - per-vdev-zaps init path for upgrade
2017-01-13 13:50:22 -08:00
spa.h
More ashift improvements
2017-05-03 09:31:05 -07:00
space_map.h
Illumos 5164-5165 - space map fixes
2014-10-23 15:30:32 -07:00
space_reftree.h
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
sysevent.h
OpenZFS 5997 - FRU field not set during pool creation and never updated
2016-08-12 13:06:48 -07:00
trace_acl.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_arc.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_common.h
OpenZFS 6531 - Provide mechanism to artificially limit disk performance
2016-05-26 10:11:51 -07:00
trace_dbgmsg.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_dbuf.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_dmu.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
trace_dnode.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_multilist.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_txg.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_zil.h
Fix build-it compilation regression
2017-01-24 08:50:15 -08:00
trace_zio.h
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
trace_zrlock.h
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
trace.h
Remove duplicate typedefs from trace.h
2015-01-06 16:53:24 -08:00
txg_impl.h
Fix spelling
2017-01-03 11:31:18 -06:00
txg.h
OpenZFS 8063 - verify that we do not attempt to access inactive txg
2017-05-10 13:52:22 -04:00
u8_textprep_data.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
u8_textprep.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
uberblock_impl.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
uberblock.h
Illumos 5347 - idle pool may run itself out of space
2015-07-14 10:35:21 -07:00
uio_impl.h
Add basic uio support
2011-02-10 09:21:43 -08:00
unique.h
Illumos #3742
2013-11-04 10:55:25 -08:00
uuid.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
vdev_disk.h
Remove custom root pool import code
2016-08-11 11:19:34 -07:00
vdev_file.h
Use a dedicated taskq for vdev_file
2016-12-21 10:47:15 -08:00
vdev_impl.h
Skip spurious resilver IO on raidz vdev
2017-05-12 17:28:03 -07:00
vdev_raidz_impl.h
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
vdev_raidz.h
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
vdev.h
Skip spurious resilver IO on raidz vdev
2017-05-12 17:28:03 -07:00
xvattr.h
Fix spelling
2017-01-03 11:31:18 -06:00
zap_impl.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
zap_leaf.h
Illumos 5056 - ZFS deadlock on db_mtx and dn_holds
2015-04-28 16:25:34 -07:00
zap.h
OpenZFS 1300 - filename normalization doesn't work for removes
2017-02-02 14:13:41 -08:00
zfeature.h
Revert "zhack: Add 'feature disable' command"
2016-05-17 11:52:07 -07:00
zfs_acl.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zfs_context.h
Linux 4.12 compat: PF_FSTRANS was removed
2017-05-09 10:38:46 -07:00
zfs_ctldir.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zfs_debug.h
OpenZFS 7277 - zdb should be able to print zfs_dbgmsg's
2017-01-28 12:16:43 -08:00
zfs_delay.h
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
zfs_dir.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zfs_fuid.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zfs_ioctl.h
DLPX-40252 integrate EP-476 compressed zfs send/receive
2016-09-13 09:58:58 -07:00
zfs_onexit.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
zfs_ratelimit.h
Add missing *_destroy/*_fini calls
2017-05-04 19:26:28 -04:00
zfs_rlock.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zfs_sa.h
Illumos 5027 - zfs large block support
2015-05-11 12:23:16 -07:00
zfs_stat.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
zfs_vfsops.h
Linux 4.12 compat: super_setup_bdi_name()
2017-05-02 09:46:18 -07:00
zfs_vnops.h
Rename zfs_* functions
2017-03-10 09:51:35 -08:00
zfs_znode.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zil_impl.h
Illumos 5027 - zfs large block support
2015-05-11 12:23:16 -07:00
zil.h
OpenZFS 8063 - verify that we do not attempt to access inactive txg
2017-05-10 13:52:22 -04:00
zio_checksum.h
Remove dependency on linear ABD
2017-03-29 12:24:51 -07:00
zio_compress.h
DLPX-44812 integrate EP-220 large memory scalability
2016-11-29 14:34:27 -08:00
zio_impl.h
Compile zio.h and zio_impl.h mutual include
2016-12-01 16:36:25 -07:00
zio_priority.h
Add -lhHpw options to "zpool iostat" for avg latency, histograms, & queues
2016-05-12 12:36:32 -07:00
zio.h
OpenZFS 5120 - zfs should allow large block/gzip/raidz boot pool (loader project)
2017-04-13 09:40:00 -07:00
zpl.h
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
zrlock.h
OpenZFS 6328 - Fix cstyle errors in zfs codebase
2017-01-12 09:42:11 -08:00
zvol.h
Suspend/resume zvol for recv and rollback
2017-01-19 13:56:36 -08:00