The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2019
Filed:
Feb. 19, 2016
Seagate Technology Llc, Cupertino, CA (US);
Horia Cristian Simionescu, Foster City, CA (US);
Balakrishnan Sundararaman, Austin, TX (US);
Shashank Nemawarkar, Austin, TX (US);
Larry Stephen King, Austin, TX (US);
Mark Ish, Castro Valley, CA (US);
Shailendra Aulakh, Austin, TX (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
In response to a cacheable write request from a host, physical cache locations are allocated from a free list, and the data blocks are written to those cache locations without regard to whether any read requests to the corresponding logical addresses are pending. After the data has been written, and again without regard to whether any read requests are pending against the corresponding logical addresses, metadata is updated to associate the cache locations with the logical addresses. A count of data access requests pending against each cache location having valid data is maintained, and a cache location is only returned to the free list when the count indicates no data access requests are pending against the cache location.