UBUNTU: SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.6
BugLink: https://bugs.launchpad.net/bugs/1772412
Sync from zfs 0.7.5-1ubuntu16.6 that contains a backport of upstream zfs
commit
77d8a0f1a4d0b2f59cee63088f7987cb38e66538 ("Fix hung z_zvol tasks
during 'zfs receive'").
Adds a dedicated, per-pool, prefetch taskq to prevent the traverse
code from monopolizing the global (and limited) system_taskq by
inappropriately scheduling long running tasks on it. This fixes
z_zvol hung tasks when performing large I/O operations, for example
when performing huge ZFS send/receives (on slow media).
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Acked-by: Andrea Righi <andrea.righi@canonical.com>
Acked-by: Connor Kuehl <connor.kuehl@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>