zfs threads

[Andriy Gapon]

Not sure if this is something that happened recently or if it was always that way
- I see a lot of zfs-something-named kernel threads running under 'kernel' process
(pid 0).
I thought the idea was to group them under that special kernel process 'zfskern'.

Example:
$ procstat -t 0 | fgrep zio
    0 100079 kernel           spa_zio_null_iss   0   68 sleep   -
    0 100080 kernel           spa_zio_null_int   0   68 sleep   -
    0 100081 kernel           spa_zio_read_iss   1   68 sleep   -
    0 100082 kernel           spa_zio_read_iss   1   68 sleep   -
    0 100083 kernel           spa_zio_read_iss   1   68 sleep   -
    0 100084 kernel           spa_zio_read_iss   0   68 sleep   -
    0 100085 kernel           spa_zio_read_iss   0   68 sleep   -
    0 100086 kernel           spa_zio_read_iss   1   68 sleep   -
    0 100087 kernel           spa_zio_read_iss   0   68 sleep   -
    0 100088 kernel           spa_zio_read_iss   1   68 sleep   -
    0 100089 kernel           spa_zio_read_int   0   68 sleep   -
    0 100090 kernel           spa_zio_write_is   1   68 sleep   -
    0 100091 kernel           spa_zio_write_in   0   68 sleep   -
    0 100092 kernel           spa_zio_write_in   1   68 sleep   -
    0 100093 kernel           spa_zio_write_in   1   68 sleep   -
    0 100094 kernel           spa_zio_write_in   0   68 sleep   -
    0 100095 kernel           spa_zio_write_in   1   68 sleep   -
    0 100096 kernel           spa_zio_write_in   0   68 sleep   -
    0 100097 kernel           spa_zio_write_in   0   68 sleep   -
    0 100098 kernel           spa_zio_write_in   0   68 sleep   -
    0 100099 kernel           spa_zio_free_iss   1   68 sleep   -
    0 100100 kernel           spa_zio_free_int   1   68 sleep   -
    0 100101 kernel           spa_zio_claim_is   1   68 sleep   -
    0 100102 kernel           spa_zio_claim_in   1   68 sleep   -
    0 100103 kernel           spa_zio_ioctl_is   1   68 sleep   -
    0 100104 kernel           spa_zio_ioctl_in   1   68 sleep   -
-- 
Andriy Gapon