git: DragonFly_RELEASE_6_0 hammer2 - Fix growfs issue with multi-volume support + one other bug
dillon at crater.dragonflybsd.org
Mon Jun 14 14:14:14 PDT 2021
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Mon Jun 14 13:16:59 2021 -0700
hammer2 - Fix growfs issue with multi-volume support + one other bug
* A hammer2 filesystem versioned for multi-volume support checks
voldata.total_size, but growfs was never modified to adjust
the total_size field.
Fix this by having growfs properly adjust the total_size field.
* An older bug... growfs was not zeroing any new volume headers
when extending the filesystem in such a way as additional volume
headers are needed.
Fix by properly zeroing these headers (mount will complain until
hammer2 cycles through all four but that's ok).
* Also fix an older bug, modifications to only the volume header could
be flushed without bumping mirror_tid, causing confusion later
on if the filesystem is unmounted and remounted.
Fix this by having hammer2_voldata_modify() set mirror_tid in the
vchain in the same manner that hammer2_chain_modify() does for
a chain. e.g.:
hmp->vchain.bref.mirror_tid = hmp->voldata.mirror_tid + 1;
Summary of changes:
sys/vfs/hammer2/hammer2_ioctl.c | 26 ++++++++++++++++++++++----
sys/vfs/hammer2/hammer2_vfsops.c | 9 +++++++++
2 files changed, 31 insertions(+), 4 deletions(-)
DragonFly BSD source repository
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