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d50795ed09
Split vg_remove_single into vg_remove_check (mandatory checks before vgremove) and vg_remove (do actual remove by committing to disk). In liblvm, we'd like to provide an consistent API that allows multiple changes in memory, then let lvm_vg_write() control the commit to disk. In some cases (for example, lvresize calls fsadm) this may not be possible. However, since we are using an object model and dividing things into small operations, the most logical model seems to be the lvm_vg_write model, and handling the special cases as they arrive. So as best as possible we move towards this end. A possible optimization would be to consolidate vg_remove (committing) code with vgreduce code. A second possible optimization is making vgreduce of the last device equivalent to vgremove. Today, lvm_vg_reduce fails if vgreduce is called with the last device, but from an object model perspective we could view this as equivalent to vgremove and allow it. My gut feel is we do not want to do this though. Author: Dave Wysochanski <dwysocha@redhat.com> |
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