commit c057466c48d9aa2ac99dac17befc3aa871a548bc
Author: Matthew Dillon <[email protected]>
Date: Sat Oct 26 22:09:28 2013 -0700
hammer2 - Fix misc bugs
* Move the live_zero optimization from hammer2_chain to
hammer2_chain_core. It is only applicable to the core
and delete-duplicate operations can mess up the cache.
* Move the HAMMER2_CHAIN_COUNTEDBREFS flag to HAMMER2_CORE_COUNTEDBREFS.
It is only applicable to the core and delete-duplication operations
can really mess up calculations of live_count otherwise.
* Don't bump live_count if inserting a deleted chain.
* The vp in the hammer2_sync_scan2() is not locked on purpose. Use the
synclist token interlock to safely ref the hammer2_inode before
potentially blocking, otherwise it can get ripped out from under us.
Summary of changes:
sys/vfs/hammer2/hammer2.h | 5 +++--
sys/vfs/hammer2/hammer2_chain.c | 43 ++++++++++++++++++++++------------------
sys/vfs/hammer2/hammer2_flush.c | 2 +-
sys/vfs/hammer2/hammer2_vfsops.c | 16 +++++++++++++--
4 files changed, 42 insertions(+), 24 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/c057466c48d9aa2ac99dac17befc3aa871a548bc
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DragonFly BSD source repository
