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Andriy Gapon e7a96b6403 7541 zpool import/tryimport ioctl returns ENOMEM because provided buffer is too small for config

illumos/illumos-gate@8b65a70b76
8b65a70b76

https://www.illumos.org/issues/7541
  When calling zpool import, zpool does a few ioctls to ZFS.
  zpool allocates a buffer in userland and passes it to the kernel so that ZFS
  can copy info into it. ZFS will use it to put the nvlist that describes the
  pool configuration.
  If the allocated buffer is too small, ZFS will return ENOMEM and the call will
  have to be redone. This wastes CPU time and slows down the import process. This
  happens very often for the ZFS_IOC_POOL_TRYIMPORT call.

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Pavel Zakharov <pavel.zakharov@delphix.com>

2017-04-14 18:20:56 +00:00

cmd

7252 7628 compressed zfs send / receive

2017-04-14 18:07:43 +00:00

common

7386 zfs get does not work properly with bookmarks

2017-04-14 18:01:43 +00:00

head

5066 remove support for non-ANSI compilation

2014-08-20 06:29:42 +00:00

lib

7541 zpool import/tryimport ioctl returns ENOMEM because provided buffer is too small for config