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The only reason for spa_config_*() to use refcount instead of simple non-atomic (thanks to scl_lock) variable for scl_count is tracking, hard disabled for the last 8 years. Switch to simple int scl_count reduces the lock hold time by avoiding atomic, plus makes structure fit into single cache line, reducing the locks contention. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Mark Maybee <mark.maybee@delphix.com> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored-By: iXsystems, Inc. Closes #12287 |
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| .. | ||
| abd.c | ||
| aggsum.c | ||
| arc.c | ||
| blkptr.c | ||
| bplist.c | ||
| bpobj.c | ||
| bptree.c | ||
| bqueue.c | ||
| btree.c | ||
| dataset_kstats.c | ||
| dbuf_stats.c | ||
| dbuf.c | ||
| ddt_zap.c | ||
| ddt.c | ||
| dmu_diff.c | ||
| dmu_object.c | ||
| dmu_objset.c | ||
| dmu_recv.c | ||
| dmu_redact.c | ||
| dmu_send.c | ||
| dmu_traverse.c | ||
| dmu_tx.c | ||
| dmu_zfetch.c | ||
| dmu.c | ||
| dnode_sync.c | ||
| dnode.c | ||
| dsl_bookmark.c | ||
| dsl_crypt.c | ||
| dsl_dataset.c | ||
| dsl_deadlist.c | ||
| dsl_deleg.c | ||
| dsl_destroy.c | ||
| dsl_dir.c | ||
| dsl_pool.c | ||
| dsl_prop.c | ||
| dsl_scan.c | ||
| dsl_synctask.c | ||
| dsl_userhold.c | ||
| edonr_zfs.c | ||
| fm.c | ||
| gzip.c | ||
| hkdf.c | ||
| lz4.c | ||
| lzjb.c | ||
| Makefile.in | ||
| metaslab.c | ||
| mmp.c | ||
| multilist.c | ||
| objlist.c | ||
| pathname.c | ||
| range_tree.c | ||
| refcount.c | ||
| rrwlock.c | ||
| sa.c | ||
| sha256.c | ||
| skein_zfs.c | ||
| spa_boot.c | ||
| spa_checkpoint.c | ||
| spa_config.c | ||
| spa_errlog.c | ||
| spa_history.c | ||
| spa_log_spacemap.c | ||
| spa_misc.c | ||
| spa_stats.c | ||
| spa.c | ||
| space_map.c | ||
| space_reftree.c | ||
| THIRDPARTYLICENSE.cityhash | ||
| THIRDPARTYLICENSE.cityhash.descrip | ||
| txg.c | ||
| uberblock.c | ||
| unique.c | ||
| vdev_cache.c | ||
| vdev_draid_rand.c | ||
| vdev_draid.c | ||
| vdev_indirect_births.c | ||
| vdev_indirect_mapping.c | ||
| vdev_indirect.c | ||
| vdev_initialize.c | ||
| vdev_label.c | ||
| vdev_mirror.c | ||
| vdev_missing.c | ||
| vdev_queue.c | ||
| vdev_raidz_math_aarch64_neon_common.h | ||
| vdev_raidz_math_aarch64_neon.c | ||
| vdev_raidz_math_aarch64_neonx2.c | ||
| vdev_raidz_math_avx2.c | ||
| vdev_raidz_math_avx512bw.c | ||
| vdev_raidz_math_avx512f.c | ||
| vdev_raidz_math_impl.h | ||
| vdev_raidz_math_powerpc_altivec_common.h | ||
| vdev_raidz_math_powerpc_altivec.c | ||
| vdev_raidz_math_scalar.c | ||
| vdev_raidz_math_sse2.c | ||
| vdev_raidz_math_ssse3.c | ||
| vdev_raidz_math.c | ||
| vdev_raidz.c | ||
| vdev_rebuild.c | ||
| vdev_removal.c | ||
| vdev_root.c | ||
| vdev_trim.c | ||
| vdev.c | ||
| zap_leaf.c | ||
| zap_micro.c | ||
| zap.c | ||
| zcp_get.c | ||
| zcp_global.c | ||
| zcp_iter.c | ||
| zcp_set.c | ||
| zcp_synctask.c | ||
| zcp.c | ||
| zfeature.c | ||
| zfs_byteswap.c | ||
| zfs_fm.c | ||
| zfs_fuid.c | ||
| zfs_ioctl.c | ||
| zfs_log.c | ||
| zfs_onexit.c | ||
| zfs_quota.c | ||
| zfs_ratelimit.c | ||
| zfs_replay.c | ||
| zfs_rlock.c | ||
| zfs_sa.c | ||
| zfs_vnops.c | ||
| zil.c | ||
| zio_checksum.c | ||
| zio_compress.c | ||
| zio_inject.c | ||
| zio.c | ||
| zle.c | ||
| zrlock.c | ||
| zthr.c | ||
| zvol.c | ||