mirror_zfs/module
Don Brady 28c91ab66d Tag ABD pages for exclusion in kernel crash dumps
Tag the ABD data pages so that they can be identified for exclusion 
from kernel crash dumps. Eliminating the zfs file data allows for 
significantly smaller crash dump files. Note that ZFS in illumos has 
always excluded the zfs data pages from a kernel crash dump.

This change tags ARC scatter data pages so they can be identified from 
the makedumpfile(8) command. That command is used to create smaller 
dump files by ignoring some memory regions and using compression. It 
already filters file data from the VFS page cache and will now be able 
to exclude ZFS file data pages from the dump file.

A corresponding change to makeumpfile(8) is required to identify ZFS 
data pages.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #8899
2019-08-28 10:44:46 -07:00
..
avl Update build system and packaging 2018-05-29 16:00:33 -07:00
icp Minor style cleanup 2019-07-16 17:22:31 -07:00
lua Linux 5.3: Fix switch() fall though compiler errors 2019-08-21 09:29:23 -07:00
nvpair Use NV_ENCODE_NATIVE for nvlist encoding variable 2019-04-26 11:24:31 -07:00
spl Drop KMC_NOEMERGENCY 2019-08-13 07:46:12 -06:00
unicode Update build system and packaging 2018-05-29 16:00:33 -07:00
zcommon Fast Clone Deletion 2019-07-26 10:54:14 -07:00
zfs Tag ABD pages for exclusion in kernel crash dumps 2019-08-28 10:44:46 -07:00
.gitignore Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
Makefile.in Linux 5.3 compat: Makefile subdir-m no longer supported 2019-08-19 15:22:52 -07:00