Thomas Munro e7347be9e3 ffs: Support O_DSYNC.
Respect the new IO_DATASYNC flag when performing synchronous writes.
Compared to O_SYNC, O_DSYNC lets us skip updating the inode in some
cases, matching the behaviour of fdatasync(2).

Reviewed by: kib
Differential Review: https://reviews.freebsd.org/D25160
2021-01-08 13:15:56 +13:00
..
2020-12-11 22:51:57 +00:00
2021-01-08 13:15:56 +13:00