EXT4 File-System Picking Up New Direct I/O Read Implementation
Written by Michael Larabel in Linux Storage on 9 November 2019 at 11:41 AM EST. 9 Comments
LINUX STORAGE --
Among other EXT4 file-system changes en route for the upcoming Linux 5.5 kernel is a new direct I/O read implementation.

EXT4 has ready a new direct I/O read that makes use of the kernel's iomap infrastructure. This new IOmap-based direct I/O read replaces the existing direct I/O read code within this file-system driver.

This new direct I/O read implementation goes along with other EXT4 IOmap infrastructure code improvements, support for being able to handle transaction restarts, and other EXT4 code ultimately destined for Linux 5.5.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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