On Saturday 08 August 2009 10:25:53 Nikanth Karthikesan wrote: > Hi > > Currently for device-mapper devices, we initialize the mempool for requests > and elevator at device creation time. But only request-based devices use > the elevator and mempool. These patches change it to allocate the mempool > and initialize the elevator only for request-based devices. This is done by > allocating a queue at device creation time, but delaying the initialization > of elevator and allocation of mempool till the first table load time, when > the type of device would be known. > > [PATCH 1/2] Allow delaying initialization of queue after allocation > > [PATCH 2/2] Initialize mempool and elevator only for request-based dm > devices > > Another approach would be to free the mempool and detach elevator, if it > would be a bio-based device. But it is better to avoid initialization > itself. > Changes since v1: 1. Refreshed on top of a4e7d46407d73f35d217013b363b79a8f8eafcaa 2. Added comments suggested by Mike Snitzer. 3. Cleaned up the second patch as suggested by Mike Snitzer. Thanks Nikanth -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
