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Add oflag=fsync and oflag=sync capability to dd

Authored by freqlabs on Aug 26 2019, 8:53 PM.



Sets the O_FSYNC flag on the output file. oflag=fsync and oflag=sync are synonyms just as O_FSYNC and O_SYNC are synonyms. This functionality is intended to improve portability of dd commands in the ZFS test suite.

Sponsored by: iXsytems, Inc.

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rS FreeBSD src repository - subversion
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I also plan to add support for iflag=fullblock in a follow-up revision.

bcr added a subscriber: bcr.

OK from manpages. Make sure to bump the .Dd for this content change.
Thank you!

Another OK from manpages!

This revision is now accepted and ready to land.Sep 30 2019, 9:54 PM
This revision was automatically updated to reflect the committed changes.