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c8242a96ba
mirror_zfs/include/sys
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George Wilson c8242a96ba spa_load_verify() may consume too much memory 
When a pool is imported it will scan the pool to verify the integrity 
of the data and metadata. The amount it scans will depend on the 
import flags provided. On systems with small amounts of memory or 
when importing a pool from the crash kernel, it's possible for 
spa_load_verify to issue too many I/Os that it consumes all the memory 
of the system resulting in an OOM message or a hang.

To prevent this, we limit the amount of memory that the initial pool
scan can consume. This change will, by default, use 1/16th of the ARC
for scan I/Os to prevent running the system out of memory during import.

Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Signed-off-by: George Wilson george.wilson@delphix.com
External-issue: DLPX-65237
External-issue: DLPX-65238
Closes #9146
2019-08-13 08:11:57 -06:00
..
crypto Add support for selecting encryption backend 2018-08-02 11:59:24 -07:00
fm Add zpool status -s (slow I/Os) and -p (parseable) 2018-11-08 16:47:24 -08:00
fs Race condition between spa async threads and export 2019-07-18 13:02:33 -07:00
lua Fix coverity defects: zfs channel programs 2018-02-20 11:19:42 -08:00
sysevent Add TRIM support 2019-03-29 09:13:20 -07:00
abd.h single-chunk scatter ABDs can be treated as linear 2019-06-11 09:02:31 -07:00
aggsum.h OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
arc_impl.h Linux 4.19-rc3+ compat: Remove refcount_t compat 2018-09-26 10:29:26 -07:00
arc.h Linux 4.19-rc3+ compat: Remove refcount_t compat 2018-09-26 10:29:26 -07:00
avl_impl.h
avl.h Remove dead code from AVL tree 2017-10-05 19:28:00 -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 Fast Clone Deletion 2019-07-26 10:54:14 -07:00
bpobj.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
bptree.h
bqueue.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
cityhash.h OpenZFS 8484 - Implement aggregate sum and use for arc counters 2018-06-06 09:35:59 -07:00
dataset_kstats.h port async unlinked drain from illumos-nexenta 2019-02-12 10:41:15 -08:00
dbuf.h Decrease contention on dn_struct_rwlock 2019-07-08 13:18:50 -07:00
ddt.h Remove dedupditto functionality 2019-06-19 14:54:02 -07:00
dmu_impl.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
dmu_objset.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
dmu_recv.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
dmu_redact.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
dmu_send.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
dmu_traverse.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
dmu_tx.h Linux 4.19-rc3+ compat: Remove refcount_t compat 2018-09-26 10:29:26 -07:00
dmu_zfetch.h Replace zf_rwlock with a mutex 2019-07-25 11:57:58 -07:00
dmu.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
dnode.h Remove code for zfs remap 2019-06-24 16:44:01 -07:00
dsl_bookmark.h Fix comments on zfs_bookmark_phys 2019-06-22 16:32:26 -07:00
dsl_crypt.h Allow unencrypted children of encrypted datasets 2019-06-20 12:29:51 -07:00
dsl_dataset.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
dsl_deadlist.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
dsl_deleg.h Remove code for zfs remap 2019-06-24 16:44:01 -07:00
dsl_destroy.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
dsl_dir.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
dsl_pool.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
dsl_prop.h
dsl_scan.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
dsl_synctask.h OpenZFS 9425 - channel programs can be interrupted 2019-06-22 16:51:46 -07:00
dsl_userhold.h
edonr.h
efi_partition.h
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
Makefile.am Log Spacemap Project 2019-07-16 10:11:49 -07:00
metaslab_impl.h Metaslab max_size should be persisted while unloaded 2019-08-05 14:34:27 -07:00
metaslab.h Metaslab max_size should be persisted while unloaded 2019-08-05 14:34:27 -07:00
mmp.h MMP interval and fail_intervals in uberblock 2019-03-21 12:47:57 -07:00
mntent.h
multilist.h Avoid extra taskq_dispatch() calls by DMU 2019-06-25 12:03:38 -07:00
note.h Update build system and packaging 2018-05-29 16:00:33 -07:00
nvpair_impl.h OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations 2018-07-30 11:30:03 -07:00
nvpair.h Add new fnvlist_lookup_* functions 2018-10-03 15:30:55 -07:00
objlist.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
pathname.h Disable unused pathname::pn_path* (unneeded in Linux) 2019-07-15 13:57:56 -07:00
policy.h
range_tree.h Metaslab max_size should be persisted while unloaded 2019-08-05 14:34:27 -07:00
refcount.h Add zfs_refcount_transfer_ownership_many() 2018-10-09 10:05:48 -07:00
rrwlock.h Linux 4.19-rc3+ compat: Remove refcount_t compat 2018-09-26 10:29:26 -07:00
sa_impl.h Linux 4.19-rc3+ compat: Remove refcount_t compat 2018-09-26 10:29:26 -07:00
sa.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
sdt.h Add line info and SET_ERROR() to ZFS debug log 2017-07-25 23:09:48 -07:00
sha2.h
skein.h
spa_boot.h
spa_checkpoint.h Serialize ZTHR operations to eliminate races 2019-01-13 10:09:46 -08:00
spa_checksum.h
spa_impl.h spa_load_verify() may consume too much memory 2019-08-13 08:11:57 -06:00
spa_log_spacemap.h Log Spacemap Project 2019-07-16 10:11:49 -07:00
spa.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
space_map.h Log Spacemap Project 2019-07-16 10:11:49 -07:00
space_reftree.h
sysevent.h OpenZFS 6939 - add sysevents to zfs core for commands 2017-07-12 21:28:13 -07:00
trace_acl.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_arc.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_common.h
trace_dbgmsg.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_dbuf.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_dmu.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_dnode.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_multilist.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_rrwlock.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_txg.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_vdev.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_zil.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_zio.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace_zrlock.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
trace.h 8659 static dtrace probes unavailable on non-GPL modules 2019-07-08 11:20:53 -07:00
txg_impl.h OpenZFS 9464 - txg_kick() fails to see that we are quiescing 2018-06-04 14:56:06 -07:00
txg.h OpenZFS 9425 - channel programs can be interrupted 2019-06-22 16:51:46 -07:00
u8_textprep_data.h
u8_textprep.h
uberblock_impl.h MMP interval and fail_intervals in uberblock 2019-03-21 12:47:57 -07:00
uberblock.h Multi-modifier protection (MMP) 2017-07-13 13:54:00 -04:00
uio_impl.h deadlock between mm_sem and tx assign in zfs_write() and page fault 2018-10-16 11:11:24 -07:00
unique.h
uuid.h
vdev_disk.h Add support for autoexpand property 2018-07-23 15:40:15 -07:00
vdev_file.h
vdev_impl.h Log Spacemap Project 2019-07-16 10:11:49 -07:00
vdev_indirect_births.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_indirect_mapping.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_initialize.h Add TRIM support 2019-03-29 09:13:20 -07:00
vdev_raidz_impl.h Linux 5.0 compat: SIMD compatibility 2019-07-12 09:31:20 -07:00
vdev_raidz.h Linux 5.0 compat: SIMD compatibility 2019-07-12 09:31:20 -07:00
vdev_removal.h panic in removal_remap test on 4K devices 2019-06-13 13:12:39 -07:00
vdev_trim.h Add TRIM support 2019-03-29 09:13:20 -07:00
vdev.h Add TRIM support 2019-03-29 09:13:20 -07:00
xvattr.h Linux 4.18 compat: inode timespec -> timespec64 2018-06-19 21:51:18 -07:00
zap_impl.h
zap_leaf.h Fix ENOSPC in "Handle zap_add() failures in ..." 2018-04-18 14:19:50 -07:00
zap.h fat zap should prefetch when iterating 2019-06-12 13:13:09 -07:00
zcp_global.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_iter.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_prop.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp.h OpenZFS 9425 - channel programs can be interrupted 2019-06-22 16:51:46 -07:00
zfeature.h
zfs_acl.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_context.h Fix lockdep recursive locking false positive in dbuf_destroy 2019-07-17 09:18:24 -07:00
zfs_ctldir.h
zfs_debug.h Log Spacemap Project 2019-07-16 10:11:49 -07:00
zfs_delay.h Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_dir.h port async unlinked drain from illumos-nexenta 2019-02-12 10:41:15 -08:00
zfs_fuid.h Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs_ioctl.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
zfs_onexit.h
zfs_project.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_ratelimit.h Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
zfs_rlock.h OpenZFS 9689 - zfs range lock code should not be zpl-specific 2018-10-11 10:19:33 -07:00
zfs_sa.h Project Quota on ZFS 2018-02-13 14:54:54 -08:00
zfs_stat.h
zfs_sysfs.h Fix in-kernel sysfs entries 2018-09-06 21:44:52 -07:00
zfs_vfsops.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
zfs_vnops.h RHEL 7.5 compat: FMODE_KABI_ITERATE 2018-05-02 15:01:24 -07:00
zfs_znode.h Change boolean-like uint8_t fields in znode_t to boolean_t 2019-08-13 07:58:02 -06:00
zil_impl.h make zil max block size tunable 2019-06-10 11:48:42 -07:00
zil.h make zil max block size tunable 2019-06-10 11:48:42 -07:00
zio_checksum.h Remove dependency on linear ABD 2017-03-29 12:24:51 -07:00
zio_compress.h lz4_decompress_abd declared but not defined 2019-06-13 13:14:34 -07:00
zio_crypt.h Add support for decryption faults in zinject 2018-05-02 15:36:20 -07:00
zio_impl.h Add TRIM support 2019-03-29 09:13:20 -07:00
zio_priority.h Add TRIM support 2019-03-29 09:13:20 -07:00
zio.h Remove dedupditto functionality 2019-06-19 14:54:02 -07:00
zpl.h Linux 4.18 compat: inode timespec -> timespec64 2018-06-19 21:51:18 -07:00
zrlock.h
zthr.h Fast Clone Deletion 2019-07-26 10:54:14 -07:00
zvol.h Add port of FreeBSD 'volmode' property 2017-07-12 13:05:37 -07:00