mirror_zfs/module
Tony Hutter 6568379eea Fix statechange-led.sh & unnecessary libdevmapper warning
- Fix autoreplace behaviour on statechange-led.sh script.

ZED sends the following events on an auto-replace:

1. statechange: Disk goes UNAVAIL->ONLINE
2. statechange: Disk goes ONLINE->UNAVAIL
3. vdev_attach: Disk goes ONLINE

Events 1-2 happen when ZED first attempts to do an auto-online.  When that
fails, ZED then tries an auto-replace, generating the vdev_attach event in #3.

In the previous code, statechange-led was only looking at the UNAVAIL->ONLINE
transition to turn off the LED.  It ignored the #2 ONLINE->UNAVAIL transition,
assuming it was just the "old" VDEV going offline.  This is problematic, as
a drive can go from ONLINE->UNAVAIL when it's malfunctioning, and we don't want
to ignore that.

This new patch correctly turns on the fault LED every time a drive becomes
UNAVAIL.  It also monitors vdev_attach events to trigger turning off the LED
when an auto-replaced disk comes online.

- Remove unnecessary libdevmapper warning with --with-config=kernel

This fixes an unnecessary libdevmapper warning when building
--with-config=kernel.  Kernel code does not use libdevmapper, so the warning
is not needed.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #2375 
Closes #5312 
Closes #5331
2016-10-25 11:05:30 -07:00
..
avl Fix uninitialized variable in avl_add() 2016-07-25 14:21:34 -07:00
icp icp: mark asm files with noexec stack 2016-10-25 10:44:09 -07:00
nvpair Fix file permissions 2016-10-08 14:57:56 -07:00
unicode Build user-space with different gcc optimization levels 2016-08-09 14:40:35 -07:00
zcommon Fletcher4 algorithm implemented in pure NEON for Aarch64 / ARMv8 64 bits 2016-10-21 10:55:49 -07:00
zfs Fix statechange-led.sh & unnecessary libdevmapper warning 2016-10-25 11:05:30 -07:00
zpios kmem_zalloc with KM_SLEEP will never return NULL 2016-09-01 11:39:45 -07:00
.gitignore module/.gitignore: Add *.dwo (#4580) 2016-05-02 09:07:04 -07:00
Makefile.in Illumos Crypto Port module added to enable native encryption in zfs 2016-07-20 10:43:30 -07:00