[dm-devel] [PATCH 0/3] sysfs prioritizer

Hannes Reinecke hare at suse.de
Fri Jul 15 06:48:54 UTC 2016


Hi all,

this is a resend of a previous patchset for adding a 'sysfs'
prioritizer. This prioritizer uses the sysfs attributes
'access_state' and 'exclusive_pref_bit' to generate the
path priority.
Priority values are identical to those from the 'alua'
prioritizer.

Note: the mentioned sysfs attributes are filled in by
every device handler, but only the 'alua' handler has
enough logic to keep them up-to-date.
So use with caution for other device handlers.

Hannes Reinecke (3):
  libmultipath: call get_vpd_uid() if no uid_attribute is set
  alua prioritizer: Fix typo 'perf'
  multipathd: Add 'sysfs' prioritizer

 libmultipath/discovery.c           | 36 ++++++++++++++++++++++
 libmultipath/discovery.h           |  2 ++
 libmultipath/prio.h                |  1 +
 libmultipath/prioritizers/Makefile |  3 +-
 libmultipath/prioritizers/alua.c   |  8 ++---
 libmultipath/prioritizers/sysfs.c  | 61 ++++++++++++++++++++++++++++++++++++++
 libmultipath/propsel.c             |  6 +++-
 multipath/multipath.conf.5         | 19 ++++++++++--
 8 files changed, 127 insertions(+), 9 deletions(-)
 create mode 100644 libmultipath/prioritizers/sysfs.c

-- 
2.6.6




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