Ryan Moeller cda6fdd500 Intentionally allow ZFS_READONLY in zfs_write ... ZFS_READONLY represents the "DOS R/O" attribute. When that flag is set, we should behave as if write access were not granted by anything in the ACL. In particular: We _must_ allow writes after opening the file r/w, then setting the DOS R/O attribute, and writing some more. (Similar to how you can write after fchmod(fd, 0444).) Restore these semantics which were lost on FreeBSD when refactoring zfs_write. To my knowledge Linux does not actually expose this flag, but we'll need it to eventually so I've added the supporting checks. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #11693		2021-03-08 09:07:29 -08:00
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spl	Replace ZFS on Linux references with OpenZFS	2020-10-16 13:01:24 -07:00
zfs	Intentionally allow ZFS_READONLY in zfs_write	2021-03-08 09:07:29 -08:00