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rules: block: add support for pmem devices (#3683)

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Persistent memory devices can be exposed as block devices as /dev/pmemN
and /dev/pmemNs.  pmemN is the raw device and is byte-addressable from
within the kernel and when mmapped by applications from a DAX-mounted
file system.  pmemNs has the block translation table (BTT) layered on top,
offering atomic sector/block access.  Both pmemN and pmemNs are expected
to contain file systems.

blkid(8) and lsblk(8) seem to correctly report on pmemN and pmemNs.
systemd v219 will populate /dev/disk/by-uuid/ when, for example, mkfs is
used on pmem, but systemd v228 does not.

Add pmem to the whitelist.
This commit is contained in:
bgbhpe 2016-07-08 11:43:56 -04:00 committed by Lennart Poettering
parent 905c37e60e
commit f3bc4ccc2e
2 changed files with 2 additions and 2 deletions
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2
rules/60-block.rules
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@ -8,4 +8,4 @@ ACTION=="add", SUBSYSTEM=="module", KERNEL=="block", ATTR{parameters/events_dfl_
ACTION=="change", SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST=="block", ATTR{block/*/uevent}="change" ACTION=="change", SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST=="block", ATTR{block/*/uevent}="change"
# watch metadata changes, caused by tools closing the device node which was opened for writing # watch metadata changes, caused by tools closing the device node which was opened for writing
ACTION!="remove", SUBSYSTEM=="block", KERNEL=="loop*|nvme*|sd*|vd*|xvd*", OPTIONS+="watch" ACTION!="remove", SUBSYSTEM=="block", KERNEL=="loop*|nvme*|sd*|vd*|xvd*|pmem*", OPTIONS+="watch"

2
rules/60-persistent-storage.rules
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@ -6,7 +6,7 @@
ACTION=="remove", GOTO="persistent_storage_end" ACTION=="remove", GOTO="persistent_storage_end"
SUBSYSTEM!="block", GOTO="persistent_storage_end" SUBSYSTEM!="block", GOTO="persistent_storage_end"
KERNEL!="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|sr*|vd*|xvd*|bcache*|cciss*|dasd*|ubd*|scm*", GOTO="persistent_storage_end" KERNEL!="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|sr*|vd*|xvd*|bcache*|cciss*|dasd*|ubd*|scm*|pmem*", GOTO="persistent_storage_end"
# ignore partitions that span the entire disk # ignore partitions that span the entire disk
TEST=="whole_disk", GOTO="persistent_storage_end" TEST=="whole_disk", GOTO="persistent_storage_end"