公开(公告)号：US20160314135A1

公开(公告)日：2016-10-27

申请号：US15203712

申请日：2016-07-06

Applicant: Apple Inc.

Inventor： Dominic B. GIAMPAOLO ,  Pavel CISLER ,  Eric A. WEISS ,  Kristen A. MCINTYRE

IPC: G06F17/30 ,  H04L9/32

CPC classification number: G06F17/30115 ,  G06F17/30179 ,  H04L9/3213

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for file system management. In one aspect, a method includes receiving a request at a kernel to perform a file operation on a particular file; identifying a flag bit associated with the file; invoking user space file handler to perform particular action when the flag bit is set; determining whether notification that action has been performed by file handler is received; and allowing the file operation on the file when notification is received.

Abstract translation: 方法，系统和装置，包括在计算机存储介质上编码的计算机程序，用于文件系统管理。 一方面，一种方法包括在内核接收对特定文件执行文件操作的请求; 识别与文件相关联的标志位; 当设置标志位时，调用用户空间文件处理程序来执行特定的动作; 确定是否接收到由文件处理程序执行的动作的通知; 并且在收到通知时允许对文件进行文件操作。

公开(公告)号：US20180349226A1

公开(公告)日：2018-12-06

申请号：US15721287

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Pavel CISLER ,  Christopher A. WOLF ,  Loic E. VANDEREYKEN ,  Eric A. WEISS

IPC: G06F11/14 ,  G06F17/30

Abstract: The described embodiments set forth techniques for preserving clone relationships between files at a computing device. In particular, the techniques involve identifying clone relationships between files in conjunction with performing operations on the files where it can be beneficial to preserve the clone relationships. The operations can include, for example, preserving clone relationships between files that are being copied from a source storage device (that supports file cloning) to a destination storage device that supports file cloning. Additionally, the operations can include preserving clone relationships when backing up and restoring files between a source storage device (that supports file cloning) and a destination storage device that does not support file cloning. In this manner, the various benefits afforded by the clone relationships between files can be retained even as the files are propagated to destination storage devices that may or may not support file cloning.

公开(公告)号：US20180349227A1

公开(公告)日：2018-12-06

申请号：US15841283

申请日：2017-12-13

Applicant: Apple Inc.

Inventor： Pavel CISLER ,  Pavel SOKOLOV ,  Dominic B. GIAMPAOLO ,  Eric A. WEISS ,  Christopher A. WOLF

IPC: G06F11/14 ,  G06F17/30

Abstract: The embodiments set forth techniques for performing incremental backups of a source file system volume (FSV) managed by a source computing device. According to some embodiments, the source computing device can be configured to generate a current snapshot of the source FSV, where the current snapshot complements a previous snapshot of the source FSV (e.g., established during a previous backup). In some cases, to free up storage space, the data for files belonging to the source FSV can be stripped from the previous snapshot (where metadata for the files remains intact). Next, the source computing device can generate, within a destination storage device, a second snapshot of a destination FSV (that corresponds to the source FSV). In turn, the source computing device identifies changes made to the source FSV based on the current snapshot and the previous snapshot, and reflects the changes within the second snapshot of the destination FSV.

公开(公告)号：US20180349407A1

公开(公告)日：2018-12-06

申请号：US15721311

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Pavel CISLER ,  Christopher A. WOLF ,  Loic E. VANDEREYKEN ,  Eric A. WEISS

IPC: G06F17/30

Abstract: The described embodiments set forth techniques for preserving clone relationships between files at a computing device. In particular, the techniques involve identifying clone relationships between files in conjunction with performing operations on the files where it can be beneficial to preserve the clone relationships. The operations can include, for example, preserving clone relationships between files that are being copied from a source storage device (that supports file cloning) to a destination storage device that supports file cloning. Additionally, the operations can include preserving clone relationships when backing up and restoring files between a source storage device (that supports file cloning) and a destination storage device that does not support file cloning. In this manner, the various benefits afforded by the clone relationships between files can be retained even as the files are propagated to destination storage devices that may or may not support file cloning.