SWAT command and API for atomic swap and trim of logical pages

摘要

Example embodiments provide access to an updated file performed by at least one processor, wherein responsive to receiving a first list of logical page numbers (LPNs) and a second list of LPNs for an update, wherein the first list of LPNs is mapped to a first list of physical page numbers (PPNs), and the second list of LPNs is mapped to a second list of PPNs, the method, comprising: atomically remapping the first list of LPNs so that the first list of LPNs is mapped to the second list of PPNs; and trimming a mapping of the first list of LPNs to the first list of PPNs.