| commit | c652be54ae5f31f13eb03acfa533b9228843a7c0 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 5 Mar 2010 00:06:53 +0000 (4 16:06 -0800) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Fri, 5 Mar 2010 00:06:53 +0000 (4 16:06 -0800) | ||
| tree | 7ab3df996f94178a36dba068ee727c7317b0390c | treesnapshot (tar.gz zip) |
| parent | 163f8d24149b4939b8db823ddbdd7e09928e971d | commitdiff |
HAMMER VFS - Ensure sufficient free memory is available before large allocation
* The HAMMER rebalancing code can be a heavy user of kernel memory when
collecting B-Tree nodes to rebalance.
Call the new vm_wait_nominal() function before allocating said memory
in an attempt to avoid VM/VFS deadlocks when memory is low.
Reported-by: Francois Tigeot <ftigeot@wolfpond.org>
* The HAMMER rebalancing code can be a heavy user of kernel memory when
collecting B-Tree nodes to rebalance.
Call the new vm_wait_nominal() function before allocating said memory
in an attempt to avoid VM/VFS deadlocks when memory is low.
Reported-by: Francois Tigeot <ftigeot@wolfpond.org>
| sys/vfs/hammer/hammer.h | diffblobblamehistory | |
| sys/vfs/hammer/hammer_rebalance.c | diffblobblamehistory |