mirror_zfs/module/zfs
Olaf Faaland 533ea0415b Update mmp_delay on sync or skipped, failed write
When an MMP write is skipped, or fails, and time since
mts->mmp_last_write is already greater than mts->mmp_delay, increase
mts->mmp_delay.  The original code only updated mts->mmp_delay when a
write succeeded, but this results in the write(s) after delays and
failed write(s) reporting an ub_mmp_delay which is too low.

Update mmp_last_write and mmp_delay if a txg sync was successful.  At
least one uberblock was written, thus extending the time we can be sure
the pool will not be imported by another host.

Do not allow mmp_delay to go below (MSEC2NSEC(zfs_multihost_interval) /
vdev_count_leaves()) so that a period of frequent successful MMP writes,
e.g. due to frequent txg syncs, does not result in an import activity
check so short it is not reliable based on mmp thread writes alone.

Remove unnecessary local variable, start.  We do not use the start time
of the loop iteration.

Add a debug message in spa_activity_check() to allow verification of the
import_delay value and to prove the activity check occurred.

Alter the tests that import pools and attempt to detect an activity
check.  Calculate the expected duration of spa_activity_check() based on
module parameters at the time the import is performed, rather than a
fixed time set in mmp.cfg.  The fixed time may be wrong.  Also, use the
default zfs_multihost_interval value so the activity check is longer and
easier to recognize.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #7330
2018-04-04 16:38:44 -07:00
..
abd.c Update for cppcheck v1.80 2017-11-18 14:08:00 -08:00
arc.c Remove ASSERT() in l2arc_apply_transforms() 2018-03-31 15:14:21 -07:00
blkptr.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
bplist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
bpobj.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -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 Add dbuf hash and dbuf cache kstats 2018-01-29 10:24:52 -08:00
dbuf.c Decryption error handling improvements 2018-03-31 11:12:51 -07:00
ddt_zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt.c Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
dmu_diff.c OpenZFS 6950 - ARC should cache compressed data 2016-09-13 09:58:33 -07:00
dmu_object.c Raw sends must be able to decrease nlevels 2018-02-02 11:43:11 -08:00
dmu_objset.c Decryption error handling improvements 2018-03-31 11:12:51 -07:00
dmu_send.c Decryption error handling improvements 2018-03-31 11:12:51 -07:00
dmu_traverse.c Fix hung z_zvol tasks during 'zfs receive' 2018-03-30 12:10:01 -07:00
dmu_tx.c OpenZFS 8997 - ztest assertion failure in zil_lwb_write_issue 2018-01-26 20:19:46 -08:00
dmu_zfetch.c OpenZFS 8835 - Speculative prefetch in ZFS not working for misaligned reads 2018-01-19 09:31:29 -08:00
dmu.c Raw DRR_OBJECT records must write raw data 2018-02-27 09:04:05 -08:00
dnode_sync.c Raw sends must be able to decrease nlevels 2018-02-02 11:43:11 -08:00
dnode.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
dsl_bookmark.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
dsl_crypt.c Raw receive should change key atomically 2018-02-21 12:31:03 -08:00
dsl_dataset.c Fix coverity defects: zfs channel programs 2018-02-20 11:19:42 -08:00
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 OpenZFS 8677 - Open-Context Channel Programs 2018-02-08 16:05:57 -08:00
dsl_dir.c OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
dsl_pool.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
dsl_prop.c Native Encryption for ZFS on Linux 2017-08-14 10:36:48 -07:00
dsl_scan.c Fedora 28: Fix misc bounds check compiler warnings 2018-04-04 10:16:47 -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 Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
edonr_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
fm.c Linux 4.14 compat: CONFIG_GCC_PLUGIN_RANDSTRUCT 2017-11-28 17:33:48 -06:00
gzip.c Resolve QAT issues with incompressible data 2018-03-29 17:40:34 -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 QAT support for AES-GCM 2018-03-09 13:37:15 -08:00
metaslab.c Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
mmp.c Update mmp_delay on sync or skipped, failed write 2018-04-04 16:38:44 -07:00
multilist.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
pathname.c Add pn_alloc()/pn_free() functions 2016-04-21 09:49:25 -07:00
policy.c Take user namespaces into account in policy checks 2018-03-07 15:40:42 -08:00
qat_compress.c Resolve QAT issues with incompressible data 2018-03-29 17:40:34 -07:00
qat_crypt.c Fix spelling errors in comments 2018-03-21 08:42:13 -07:00
qat.c SHA256 QAT acceleration 2018-03-15 10:53:58 -07:00
qat.h Resolve QAT issues with incompressible data 2018-03-29 17:40:34 -07:00
range_tree.c Sequential scrub and resilvers 2017-11-15 17:27:01 -08:00
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 Project Quota on ZFS 2018-02-13 14:54:54 -08:00
sha256.c SHA256 QAT acceleration 2018-03-15 10:53:58 -07:00
skein_zfs.c DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -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 enable zfs_dbgmsg() by default, without dprintf() 2018-03-21 15:37:32 -07:00
spa_stats.c Record skipped MMP writes in multihost_history 2018-03-06 15:15:15 -08:00
spa.c Update mmp_delay on sync or skipped, failed write 2018-04-04 16:38:44 -07:00
space_map.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -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 OpenZFS 8585 - improve batching done in zil_commit() 2017-12-05 09:39:16 -08:00
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 Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -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 Update mmp_delay on sync or skipped, failed write 2018-04-04 16:38:44 -07:00
vdev_mirror.c Linux 4.14 compat: CONFIG_GCC_PLUGIN_RANDSTRUCT 2017-11-28 17:33:48 -06:00
vdev_missing.c Skip spurious resilver IO on raidz vdev 2017-05-12 17:28:03 -07:00
vdev_queue.c Fix deadlock in IO pipeline 2018-03-16 16:46:06 -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 OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
vdev_raidz.c Linux 4.14 compat: CONFIG_GCC_PLUGIN_RANDSTRUCT 2017-11-28 17:33:48 -06:00
vdev_root.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
vdev.c Add zfs_scan_ignore_errors tunable 2018-03-13 10:43:14 -07:00
zap_leaf.c Handle zap_add() failures in mixed case mode 2018-02-09 10:15:53 -08:00
zap_micro.c Handle zap_add() failures in mixed case mode 2018-02-09 10:15:53 -08:00
zap.c Handle zap_add() failures in mixed case mode 2018-02-09 10:15:53 -08:00
zcp_get.c Fix coverity defects: zfs channel programs 2018-02-20 11:19:42 -08:00
zcp_global.c OpenZFS 8600 - ZFS channel programs - snapshot 2018-02-08 15:29:24 -08:00
zcp_iter.c OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_synctask.c Fix coverity defects: zfs channel programs 2018-02-20 11:19:42 -08:00
zcp.c OpenZFS 8677 - Open-Context Channel Programs 2018-02-08 16:05:57 -08:00
zfeature.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
zfs_acl.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_ctldir.c Use SET_ERROR for constant non-zero return codes 2017-08-02 21:16:12 -07:00
zfs_debug.c enable zfs_dbgmsg() by default, without dprintf() 2018-03-21 15:37:32 -07:00
zfs_dir.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_fm.c Decryption error handling improvements 2018-03-31 11:12:51 -07:00
zfs_fuid.c Rename zfs_sb_t -> zfsvfs_t 2017-03-10 09:51:33 -08:00
zfs_ioctl.c Fix spa reference leak in zfs_ioc_pool_scan 2018-04-03 17:31:30 -07:00
zfs_log.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_onexit.c zfsdev_getminor() should check for invalid file handles 2015-06-22 17:02:13 -07:00
zfs_ratelimit.c Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
zfs_replay.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_rlock.c Fix spelling 2017-01-03 11:31:18 -06:00
zfs_sa.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_vfsops.c ZIL claiming should not start user accounting 2018-02-20 16:27:31 -08:00
zfs_vnops.c Fix mmap / libaio deadlock 2018-03-28 10:19:22 -07:00
zfs_znode.c Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zil.c Increment zil_itx_needcopy_bytes properly 2018-03-02 10:01:53 -08:00
zio_checksum.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
zio_compress.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
zio_crypt.c Fix spelling errors in comments 2018-03-21 08:42:13 -07:00
zio_inject.c Undo c89 workarounds to match with upstream 2017-11-04 13:25:13 -07:00
zio.c Decryption error handling improvements 2018-03-31 11:12:51 -07:00
zle.c Fix zle_decompress out of bound access 2018-02-09 10:08:05 -08:00
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 Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zpl_inode.c Linux 4.12 compat: CURRENT_TIME removed 2017-05-10 09:30:48 -07:00
zpl_super.c Linux 4.16 compat: inode_set_iversion() 2018-02-08 21:25:19 -08:00
zpl_xattr.c Update for cppcheck v1.80 2017-11-18 14:08:00 -08:00
zrlock.c Fix race in trace point in zrl_add_impl 2018-03-12 11:27:02 -07:00
zvol.c Linux 4.16 compat: get_disk_and_module() 2018-03-05 12:44:35 -08:00