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Don Brady 39fc0cb557 Add support for devid and phys_path keys in vdev disk labels 
This is foundational work for ZED.

Updates a leaf vdev's persistent device strings on Linux platform

* only applies for a dedicated leaf vdev (aka whole disk)
* updated during pool create|add|attach|import
* used for matching device matching during auto-{online,expand,replace}
* stored in a leaf disk config label (i.e. alongside 'path' NVP)
* can opt-out using env var ZFS_VDEV_DEVID_OPT_OUT=YES

Some examples:

    path: '/dev/sdb1'
    devid: 'scsi-350000394a8ca4fbc-part1'
    phys_path: 'pci-0000:04:00.0-sas-0x50000394a8ca4fbf-lun-0'

    path: '/dev/mapper/mpatha'
    devid: 'dm-uuid-mpath-35000c5006304de3f'

Signed-off-by: Don Brady <don.brady@intel.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2856
Closes #3978
Closes #4416
 		2016-03-31 13:45:53 -07:00
..
chg_usr_exec Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
devname2devid Add support for devid and phys_path keys in vdev disk labels 2016-03-31 13:45:53 -07:00
dir_rd_update Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
file_check Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
file_trunc Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
file_write Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
largest_file Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
mkbusy Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
mkfile Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
mkfiles Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
mktree Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
mmap_exec Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
mmapwrite Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
randfree_file Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
readmmap Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
rename_dir Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
rm_lnkcnt_zero_file Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
threadsappend Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
xattrtest Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
Makefile.am Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00
file_common.h Add the ZFS Test Suite 2016-03-16 13:46:16 -07:00