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authorLiu Yuan Yuan <bjyyliu@linux.vnet.ibm.com>2015-11-13 11:50:42 +0100
committerHendrik Brueckner <brueckner@linux.vnet.ibm.com>2015-11-13 11:50:42 +0100
commite7eb5a8d88367a755944fdda3023a308e5272953 (patch)
treeb81d1fe9e16ecfd8438597e6248944caf76ba91a /.mailmap
parent87fde73e185fabc346ee4d9c9befe972e3502dc3 (diff)
udev/path_id: improve and enhance bus detection for Linux on z Systems
Improve and enhance the path_id udev builtin to correctly handle bus' available on Linux on z Systems (s390). Previously, the CCW bus and, in particular, any FCP devices on it, have been treated separately. This commit integrates the CCW bus into the device chain loop. FCP devices and their associated SCSI disks are now handled through the common SCSI handling functions in path_id. This implies also a change in the naming of the symbolic links created by udev. So any backports of this commit to existing Linux distribution must be done with care. If a backport is required, a udev rule must be created to also create the "old-style" symbolic links. Apart from the CCW bus, this commit adds bus support for the: - ccwgroup bus which manages network devices, and - ap bus which manages cryptographic adapters - iucv bus which manages IUCV devices on z/VM
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