Archive-Team
/
zfs
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 103 Wiki Activity
zfs/include/sys
History
Tom Caputi a8b2e30685 Support re-prioritizing asynchronous prefetches 
When sequential scrubs were merged, all calls to arc_read()
(including prefetch IOs) were given ZIO_PRIORITY_ASYNC_READ.
Unfortunately, this behaves badly with an existing issue where
prefetch IOs cannot be re-prioritized after the issue. The
result is that synchronous reads end up in the same vdev_queue
as the scrub IOs and can have (in some workloads) multiple
seconds of latency.

This patch incorporates 2 changes. The first ensures that all
scrub IOs are given ZIO_PRIORITY_SCRUB to allow the vdev_queue
code to differentiate between these I/Os and user prefetches.
Second, this patch introduces zio_change_priority() to provide
the missing capability to upgrade a zio's priority.

Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #6921 
Closes #6926
 		2017-12-21 09:13:06 -08:00
..
crypto OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R 2016-10-03 14:51:15 -07:00
fm Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
fs Unbreak the scan status ABI 2017-11-30 09:40:13 -08:00
sysevent Emit history events for 'zpool create' 2017-10-23 09:45:59 -07:00
Makefile.am Suppress incorrect objtool warnings 2017-12-07 10:28:50 -08:00
abd.h OpenZFS 8416 - abd.h is not C++ friendly 2017-06-30 11:11:01 -07:00
arc.h Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
arc_impl.h Support re-prioritizing asynchronous prefetches 2017-12-21 09:13:06 -08:00
avl.h Remove dead code from AVL tree 2017-10-05 19:28:00 -07:00
avl_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
blkptr.h OpenZFS 8067 - zdb should be able to dump literal embedded block pointer 2017-07-07 11:28:01 -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 OpenZFS 7531 - Assign correct flags to prefetched buffers 2017-11-11 20:24:34 -08:00
ddt.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dmu.h OpenZFS 8585 - improve batching done in zil_commit() 2017-12-05 09:39:16 -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 Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dmu_send.h Free objects when receiving full stream as clone 2017-10-10 15:30:51 -07:00
dmu_traverse.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -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
dnode.h Improved dnode allocation and dmu_hold_impl() 2017-09-05 16:15:04 -07:00
dsl_bookmark.h Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
dsl_crypt.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_dataset.h Typo in dsl_dataset.h 2017-10-12 17:10:38 -07:00
dsl_deadlist.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
dsl_deleg.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_destroy.h Illumos #3888 2013-11-04 11:18:14 -08:00
dsl_dir.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_pool.h Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
dsl_prop.h Illumos 6171 - dsl_prop_unregister() slows down dataset eviction. 2016-01-12 10:53:12 -08:00
dsl_scan.h Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
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
frame.h Suppress incorrect objtool warnings 2017-12-07 10:28:50 -08:00
hkdf.h Encryption patch follow-up 2017-10-11 16:54:48 -04:00
metaslab.h OpenZFS 7303 - dynamic metaslab selection 2017-01-12 11:52:56 -08:00
metaslab_impl.h OpenZFS 7613 - ms_freetree[4] is only used in syncing context 2017-01-26 15:27:19 -08:00
mmp.h Add callback for zfs_multihost_interval 2017-07-25 13:22:20 -04:00
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.h Replace __va_list with va_list 2014-08-13 10:35:00 -07:00
nvpair_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -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 Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
refcount.h OpenZFS 8081 - Compiler warnings in zdb 2017-10-27 12:46:35 -07:00
rrwlock.h Illumos 5008 - lock contention (rrw_exit) while running a read only load 2015-07-06 09:34:13 -07:00
sa.h Remove unused sa_update_from_cb() 2016-12-01 16:39:06 -07:00
sa_impl.h Implement large_dnode pool feature 2016-06-24 13:13:21 -07:00
sdt.h Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
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.h Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -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 Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
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 6939 - add sysevents to zfs core for commands 2017-07-12 21:28:13 -07:00
trace.h Remove duplicate typedefs from trace.h 2015-01-06 16:53:24 -08:00
trace_acl.h Fix build-it compilation regression 2017-01-24 08:50:15 -08:00
trace_arc.h Support re-prioritizing asynchronous prefetches 2017-12-21 09:13:06 -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 Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
trace_dbuf.h Crash in dbuf_evict_one with DTRACE_PROBE 2017-08-09 11:04:41 -07:00
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 OpenZFS 8585 - improve batching done in zil_commit() 2017-12-05 09:39:16 -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
txg.h OpenZFS 8063 - verify that we do not attempt to access inactive txg 2017-05-10 13:52:22 -04:00
txg_impl.h Fix spelling 2017-01-03 11:31:18 -06:00
u8_textprep.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
u8_textprep_data.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
uberblock.h Multi-modifier protection (MMP) 2017-07-13 13:54:00 -04:00
uberblock_impl.h OpenZFS 8491 - uberblock on-disk padding to reserve space for smoothly merging zpool checkpoint & MMP in ZFS 2017-07-24 13:47:51 -04:00
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.h Support re-prioritizing asynchronous prefetches 2017-12-21 09:13:06 -08:00
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 Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
vdev_raidz.h Use cstyle -cpP in `make cstyle` check 2016-12-12 10:46:26 -08:00
vdev_raidz_impl.h Use cstyle -cpP in `make cstyle` check 2016-12-12 10:46:26 -08:00
xvattr.h Fix spelling 2017-01-03 11:31:18 -06:00
zap.h OpenZFS 1300 - filename normalization doesn't work for removes 2017-02-02 14:13:41 -08:00
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
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 OpenZFS 640 - number_to_scaled_string is duplicated in several commands 2017-10-30 14:47:20 -07:00
zfs_ctldir.h Rename zfs_sb_t -> zfsvfs_t 2017-03-10 09:51:33 -08:00
zfs_debug.h Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
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 Send / Recv Fixes following b52563 2017-08-23 16:54:24 -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 OpenZFS 8081 - Compiler warnings in zdb 2017-10-27 12:46:35 -07:00
zil.h OpenZFS 8585 - improve batching done in zil_commit() 2017-12-05 09:39:16 -08:00
zil_impl.h OpenZFS 8603 - rename zilog's "zl_writer_lock" to "zl_issuer_lock" 2017-12-06 11:38:10 -08:00
zio.h Support re-prioritizing asynchronous prefetches 2017-12-21 09:13:06 -08:00
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_crypt.h Encryption patch follow-up 2017-10-11 16:54:48 -04:00
zio_impl.h Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
zio_priority.h Add -lhHpw options to "zpool iostat" for avg latency, histograms, & queues 2016-05-12 12:36:32 -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 Add port of FreeBSD 'volmode' property 2017-07-12 13:05:37 -07:00