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authorLars Ellenberg <lars.ellenberg@linbit.com>2013-03-19 18:16:59 +0100
committerJens Axboe <axboe@kernel.dk>2013-03-22 22:18:09 -0600
commit5bbcf5e6abe97485748b51ea0713cc3012b4a8f0 (patch)
tree577851f75cfe5de3138c8c1c387883cf47f24005 /virt/kvm/iommu.c
parent45ad07b3ac1e3062188fb760fe71cafb4a100215 (diff)
downloadlinux-next-5bbcf5e6abe97485748b51ea0713cc3012b4a8f0.tar.gz
drbd: adjust upper limit for activity log extents
Now that the on-disk activity-log ring buffer size is adjustable, the maximum active set can become larger, and is now limited by the use of 16bit "labels". This increases the maximum working set from 6433 to 65534 extents, each of which covers an area of 4MiB. Which means that if you use the maximum, you'd have to resync more than 250 GiB after an unclean Primary shutdown. With capable backend storage and replication links, this is entirely feasible. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'virt/kvm/iommu.c')
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