diff options
Diffstat (limited to 'udev/10-dm.rules.in')
| -rw-r--r-- | udev/10-dm.rules.in | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/udev/10-dm.rules.in b/udev/10-dm.rules.in index f4951032e..bc9681fa5 100644 --- a/udev/10-dm.rules.in +++ b/udev/10-dm.rules.in @@ -45,13 +45,14 @@ ENV{DISK_RO}=="1", GOTO="dm_disable" # in libdevmapper so we need to detect this and try to behave correctly. # For such spurious events, regenerate all flags from current udev database content # (this information would normally be inaccessible for spurious ADD and CHANGE events). -ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}=="1", ENV{DM_ACTIVATED}="1", GOTO="dm_flags_done" +ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}=="1", ENV{DM_ACTIVATION}="1", GOTO="dm_flags_done" IMPORT{db}="DM_UDEV_DISABLE_DM_RULES_FLAG" IMPORT{db}="DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG" IMPORT{db}="DM_UDEV_DISABLE_DISK_RULES_FLAG" IMPORT{db}="DM_UDEV_DISABLE_OTHER_RULES_FLAG" IMPORT{db}="DM_UDEV_LOW_PRIORITY_FLAG" IMPORT{db}="DM_UDEV_DISABLE_LIBRARY_FALLBACK_FLAG" +IMPORT{db}="DM_UDEV_PRIMARY_SOURCE_FLAG" IMPORT{db}="DM_UDEV_FLAG7" IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG0" IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG1" @@ -62,7 +63,6 @@ IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG5" IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG6" IMPORT{db}="DM_SUBSYSTEM_UDEV_FLAG7" IMPORT{db}="DM_UDEV_RULES_VSN" -IMPORT{db}="DM_ACTIVATED" LABEL="dm_flags_done" # Normally, we operate on "change" events. But when coldplugging, there's an @@ -77,24 +77,26 @@ LABEL="dm_flags_done" # before (e.g. in initrd). If udev is used in initrd, we require the udev init # script to not remove the existing udev database so we can reuse the information # stored at the time of device activation in the initrd. -# The DM_ACTIVATED variable indicates that the device has already been activated. -ACTION=="add", ENV{DM_UDEV_RULES_VSN}!="1", ENV{DM_ACTIVATED}!="1", GOTO="dm_disable" +ACTION!="add", GOTO="dm_no_coldplug" +ENV{DM_UDEV_RULES_VSN}!="1", ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}!="1", GOTO="dm_disable" +ENV{DM_ACTIVATION}="1" +LABEL="dm_no_coldplug" # Putting it together, following table is used to recognize genuine and spurious events. # N.B. Spurious events are generated based on use of the WATCH udev # rule or by triggering an event manually by "udevadm trigger" call # or by "echo <event_name> > /sys/block/dm-X/uevent". # -# EVENT DM_UDEV_PRIMARY_SOURCE_FLAG DM_ACTIVATED -# ==================================================================== +# EVENT DM_UDEV_PRIMARY_SOURCE_FLAG DM_ACTIVATION +# ====================================================================== # add event (genuine) 0 0 # change event (genuine) 1 1 # add event (spurious) # |_ dev still not active 0 0 -# \_ dev already active 0 1 +# \_ dev already active 1 1 # change event (spurious) # |_ dev still not active 0 0 -# \_ dev already active 0 1 +# \_ dev already active 1 0 # "dm" sysfs subdirectory is available in newer versions of DM # only (kernels >= 2.6.29). We have to check for its existence |