Title:
L2P TABLE UPDATING METHOD, SYSTEM AND APPARATUS, AND NONVOLATILE READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/045556
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of computers, and disclose an L2P table updating method, system and apparatus, and a nonvolatile readable storage medium. The method comprises: when a Trim command is received, determining a logical address range corresponding to the Trim command, filling a pre-constructed corresponding sub-item thumbnail, and updating a Trim bitmap; and when a Trim back end updates an L2P table, according to N sub-item thumbnails, determining a logical address range of a logical block to be trimmed so as to update the L2P table. According to the embodiments of the present application, a logical block needing to be trimmed and a corresponding logical address range are determined by means of sub-item thumbnails, and thus an L2P table is updated, without the need to scan Trim bitmaps one by one, avoiding the situation that part of an L2P table is updated twice due to the fact that Trim bitmaps are re-scanned after powering on; because more than one logical address is comprised in a sub-item thumbnail, the updating efficiency of L2P tables can be improved.
Inventors:
GE NING (CN)
JIN JIAHUI (CN)
CHE LIBIN (CN)
JIN JIAHUI (CN)
CHE LIBIN (CN)
Application Number:
PCT/CN2023/081739
Publication Date:
March 07, 2024
Filing Date:
March 15, 2023
Export Citation:
Assignee:
SUZHOU METABRAIN INTELLIGENT TECH CO LTD (CN)
International Classes:
G06F12/1009
Foreign References:
| CN109840049A | 2019-06-04 | |||
| US20130275660A1 | 2013-10-17 | |||
| CN112463055A | 2021-03-09 | |||
| CN114253870A | 2022-03-29 | |||
| CN115168250A | 2022-10-11 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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