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Swat command and API for atomic swap and trim of LBAs
Swat command and API for atomic swap and trim of LBAs
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机译:特警命令和API,用于原子交换和LBA调整
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摘要
Exemplary embodiments provide access to an updated file performed by a computer having at least one processor, wherein responsive to an application receiving an update comprising modified content of an old file, a new file is created into which the modified content is copied, while access to the old file is maintained, wherein old file logical block addresses (LBAs) are mapped to old file physical block addresses (PBAs), and new file LBAs are mapped to new file PBAs, the method, comprising: atomically swapping the mapping of the old file LBAs from the old file PBAs to the new file PBAs; trimming the mapping of the old file LBAs to the old file PBAs; and clearing the mapping of the new file LBAs to the new file PBAs.
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