Rob Norris f245541e24 zfs_file: implement zfs_file_deallocate for FreeBSD 14 ... FreeBSD 14 gained a `VOP_DEALLOCATE` VFS operation and a `fspacectl` syscall to use it. At minimum, these zero the given region, and if the underlying filesystem supports it, can make the region sparse. We can use this to get TRIM-like behaviour for file vdevs. Sponsored-by: https://despairlabs.com/sponsor/ Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16496		2024-09-18 11:35:48 -07:00
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spl	Adding Direct IO Support	2024-09-14 13:47:59 -07:00
zfs	zfs_file: implement zfs_file_deallocate for FreeBSD 14	2024-09-18 11:35:48 -07:00