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John Gallagher 1eacf2b3b0 Improve rate at which new zvols are processed 
The kernel function which adds new zvols as disks to the system,
add_disk(), briefly opens and closes the zvol as part of its work.
Closing a zvol involves waiting for two txgs to sync. This, combined
with the fact that the taskq processing new zvols is single threaded,
makes this processing new zvols slow.

Waiting for these txgs to sync is only necessary if the zvol has been
written to, which is not the case during add_disk(). This change adds
tracking of whether a zvol has been written to so that we can skip the
txg_wait_synced() calls when they are unnecessary.

This change also fixes the flags passed to blkdev_get_by_path() by
vdev_disk_open() to be FMODE_READ | FMODE_WRITE | FMODE_EXCL instead of
just FMODE_EXCL. The flags were being incorrectly calculated because
we were using the wrong version of vdev_bdev_mode().

Reviewed-by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: John Gallagher <john.gallagher@delphix.com>
Closes #8526 
Closes #8615
2019-05-04 16:39:10 -07:00
..
abd.c
abd_alloc should use scatter for >1K allocations
2019-02-28 17:52:55 -08:00
aggsum.c
OpenZFS 9688 - aggsum_fini leaks memory
2018-10-19 12:08:03 -07:00
arc.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -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
Stack overflow in recursive bpobj_iterate_impl
2019-03-06 09:50:55 -08:00
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
cityhash.c
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
dataset_kstats.c
port async unlinked drain from illumos-nexenta
2019-02-12 10:41:15 -08:00
dbuf_stats.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
dbuf.c
Fix TXG_MASK cstyle
2019-04-12 11:30:59 -07:00
ddt_zap.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
ddt.c
ztest: scrub ddt repair
2019-01-17 15:25:00 -08:00
dmu_diff.c
Fix issues found with zfs diff
2018-05-01 11:24:20 -07:00
dmu_object.c
Provide more flexible object allocation interface
2019-01-10 14:37:43 -08:00
dmu_objset.c
Prevent user accounting on readonly pool
2019-02-19 18:41:18 -08:00
dmu_recv.c
Fix issues with truncated files in raw sends
2019-04-15 15:28:48 -07:00
dmu_send.c
Detect and prevent mixed raw and non-raw sends
2019-03-13 11:00:43 -07:00
dmu_traverse.c
Fix traverse_impl() kmem leak
2018-08-15 09:53:44 -07:00
dmu_tx.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
dmu_zfetch.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
dmu.c
Fixes for the DMU free throttle
2019-04-25 10:16:24 -07:00
dnode_sync.c
Fix handling of maxblkid for raw sends
2019-03-13 10:52:01 -07:00
dnode.c
Fix TXG_MASK cstyle
2019-04-12 11:30:59 -07:00
dsl_bookmark.c
Detect and prevent mixed raw and non-raw sends
2019-03-13 11:00:43 -07:00
dsl_crypt.c
Better user experience for errata 4
2019-03-14 16:48:30 -07:00
dsl_dataset.c
Mutex leak in dsl_dataset_hold_obj()
2019-03-21 10:36:58 -07:00
dsl_deadlist.c
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
dsl_deleg.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
dsl_destroy.c
zfs receive and rollback can skew filesystem_count
2019-01-08 10:17:46 -08:00
dsl_dir.c
Fix TXG_MASK cstyle
2019-04-12 11:30:59 -07:00
dsl_pool.c
port async unlinked drain from illumos-nexenta
2019-02-12 10:41:15 -08:00
dsl_prop.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
dsl_scan.c
Multiple DVA Scrubbing Fix
2019-03-15 14:14:31 -07:00
dsl_synctask.c
OpenZFS 9166 - zfs storage pool checkpoint
2018-06-26 10:07:42 -07:00
dsl_userhold.c
zfs should optionally send holds
2019-02-15 12:41:38 -08:00
edonr_zfs.c
DLPX-44812 integrate EP-220 large memory scalability
2016-11-29 14:34:27 -08:00
fm.c
OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations
2018-07-30 11:30:03 -07:00
gzip.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
hkdf.c
Encryption patch follow-up
2017-10-11 16:54:48 -04:00
lz4.c
Reword comment in lz4_compress_zfs
2019-05-02 16:46:04 -07:00
lzjb.c
Change KM_PUSHPAGE -> KM_SLEEP
2015-01-16 14:41:26 -08:00
Makefile.in
Add TRIM support
2019-03-29 09:13:20 -07:00
metaslab.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
mmp.c
MMP interval and fail_intervals in uberblock
2019-03-21 12:47:57 -07:00
multilist.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
pathname.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
policy.c
Take user namespaces into account in policy checks
2018-03-07 15:40:42 -08:00
qat_compress.c
Code improvement and bug fixes for QAT support
2019-04-16 12:38:36 -07:00
qat_crypt.c
Code improvement and bug fixes for QAT support
2019-04-16 12:38:36 -07:00
qat.c
Code improvement and bug fixes for QAT support
2019-04-16 12:38:36 -07:00
qat.h
Code improvement and bug fixes for QAT support
2019-04-16 12:38:36 -07:00
range_tree.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
refcount.c
Add zfs_refcount_transfer_ownership_many()
2018-10-09 10:05:48 -07:00
rrwlock.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
sa.c
Prefix all refcount functions with zfs_
2018-10-01 10:42:05 -07:00
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_checkpoint.c
Get rid of space_map_update() for ms_synced_length
2019-02-12 10:38:11 -08:00
spa_config.c
OpenZFS 9591 - ms_shift can be incorrectly changed
2018-06-21 09:35:26 -07:00
spa_errlog.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
spa_history.c
Create /proc/sys/kernel/spl/gitrev with git hash
2018-10-08 21:57:02 -07:00
spa_misc.c
Add TRIM support
2019-03-29 09:13:20 -07:00
spa_stats.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
spa.c
Add feature check for 'zpool resilver' command
2019-05-02 16:42:31 -07:00
space_map.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
space_reftree.c
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
THIRDPARTYLICENSE.cityhash
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
THIRDPARTYLICENSE.cityhash.descrip
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
trace.c
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
txg.c
Fix txg_wait_open() load average inflation
2019-04-04 09:44:46 -07:00
uberblock.c
MMP interval and fail_intervals in uberblock
2019-03-21 12:47:57 -07:00
unique.c
Performance optimization of AVL tree comparator functions
2016-08-31 14:35:34 -07:00
vdev_cache.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
vdev_disk.c
Improve rate at which new zvols are processed
2019-05-04 16:39:10 -07:00
vdev_file.c
Use SEEK_{SET,CUR,END} for file seek "whence"
2019-04-25 10:17:27 -07:00
vdev_indirect_births.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
vdev_indirect_mapping.c
Get rid of space_map_update() for ms_synced_length
2019-02-12 10:38:11 -08:00
vdev_indirect.c
Get rid of space_map_update() for ms_synced_length
2019-02-12 10:38:11 -08:00
vdev_initialize.c
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev_label.c
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev_mirror.c
Cleanup nits from ab7615d92
2019-04-14 11:03:06 -07:00
vdev_missing.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev_queue.c
Add TRIM support
2019-03-29 09:13:20 -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
Update build system and packaging
2018-05-29 16:00:33 -07:00
vdev_raidz.c
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev_removal.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
vdev_root.c
OpenZFS 9102 - zfs should be able to initialize storage devices
2019-01-07 10:37:26 -08:00
vdev_trim.c
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev.c
Add TRIM support
2019-03-29 09:13:20 -07:00
zap_leaf.c
Off-by-one in zap_leaf_array_create()
2019-01-18 09:58:46 -08:00
zap_micro.c
Provide more flexible object allocation interface
2019-01-10 14:37:43 -08:00
zap.c
OpenZFS 9328 - zap code can take advantage of c99
2018-05-31 10:53:11 -07:00
zcp_get.c
Detect and prevent mixed raw and non-raw sends
2019-03-13 11:00:43 -07:00
zcp_global.c
OpenZFS 8600 - ZFS channel programs - snapshot
2018-02-08 15:29:24 -08:00
zcp_iter.c
OpenZFS 9337 - zfs get all is slow due to uncached metadata
2018-07-12 10:49:27 -07:00
zcp_synctask.c
OpenZFS 9166 - zfs storage pool checkpoint
2018-06-26 10:07:42 -07:00
zcp.c
OpenZFS 9424 - ztest failure: "unprotected error in call to Lua API (Invalid value type 'function' for key 'error')"
2018-07-10 21:29:23 -07:00
zfeature.c
Consistently captialize GUID for features
2019-04-16 10:01:51 -07:00
zfs_acl.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_byteswap.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ctldir.c
Correct snprintf() size argument
2019-04-30 19:41:12 -07:00
zfs_debug.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
zfs_dir.c
port async unlinked drain from illumos-nexenta
2019-02-12 10:41:15 -08:00
zfs_fm.c
Add zpool status -s (slow I/Os) and -p (parseable)
2018-11-08 16:47:24 -08:00
zfs_fuid.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ioctl.c
Add TRIM support
2019-03-29 09:13:20 -07:00
zfs_log.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_onexit.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ratelimit.c
Change checksum & IO delay ratelimit values
2018-03-04 17:34:51 -08:00
zfs_replay.c
Use SEEK_{SET,CUR,END} for file seek "whence"
2019-04-25 10:17:27 -07:00
zfs_rlock.c
OpenZFS 9689 - zfs range lock code should not be zpl-specific
2018-10-11 10:19:33 -07:00
zfs_sa.c
Project Quota on ZFS
2018-02-13 14:54:54 -08:00
zfs_sysfs.c
features.kernel layout should match features.pool
2019-04-04 19:00:55 -07:00
zfs_vfsops.c
Fix memory leaks in zfsvfs_create_impl()
2019-03-14 18:14:36 -07:00
zfs_vnops.c
Use SEEK_{SET,CUR,END} for file seek "whence"
2019-04-25 10:17:27 -07:00
zfs_znode.c
Drop unused ZNODE_STATS and ZNODE_STAT_ADD()
2019-04-19 12:05:15 -07:00
zil.c
Fix the spelling of deferred
2019-04-16 10:01:45 -07:00
zio_checksum.c
Undo c89 workarounds to match with upstream
2017-11-04 13:25:13 -07:00
zio_compress.c
OpenZFS 9403 - assertion failed in arc_buf_destroy()
2018-08-29 11:33:33 -07:00
zio_crypt.c
Always call rw_init in zio_crypt_key_unwrap
2019-04-10 15:39:40 -07:00
zio_inject.c
Multiple DVA Scrubbing Fix
2019-03-15 14:14:31 -07:00
zio.c
Restrict kstats and print real pointers
2019-04-04 18:57:06 -07:00
zle.c
Fix zle_decompress out of bound access
2018-02-09 10:08:05 -08:00
zpl_ctldir.c
RHEL 7.5 compat: FMODE_KABI_ITERATE
2018-05-02 15:01:24 -07:00
zpl_export.c
Use cstyle -cpP in make cstyle check
2016-12-12 10:46:26 -08:00
zpl_file.c
Use SEEK_{SET,CUR,END} for file seek "whence"
2019-04-25 10:17:27 -07:00
zpl_inode.c
Use SEEK_{SET,CUR,END} for file seek "whence"
2019-04-25 10:17:27 -07:00
zpl_super.c
Fix statfs(2) for 32-bit user space
2018-09-24 17:11:25 -07:00
zpl_xattr.c
Add missing checks to zpl_xattr_* functions
2018-08-02 14:03:56 -07:00
zrlock.c
Update build system and packaging
2018-05-29 16:00:33 -07:00
zthr.c
Fix txg_wait_open() load average inflation
2019-04-04 09:44:46 -07:00
zvol.c
Improve rate at which new zvols are processed
2019-05-04 16:39:10 -07:00