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authorBrian Behlendorf <[email protected]>2023-10-24 11:00:07 -0700
committerTony Hutter <[email protected]>2024-04-30 10:01:15 -0700
commit61f3638a3463b58168b9c2b0d1f8605fde1349d9 (patch)
tree30d5c066d74763368c148e76b2a79aa8fe5efc6e /module/os/linux
parent706307445e66b63f6f4fd828dc331bb0a010c59f (diff)
Add prefetch property
ZFS prefetch is currently governed by the zfs_prefetch_disable tunable. However, this is a module-wide settings - if a specific dataset benefits from prefetch, while others have issue with it, an optimal solution does not exists. This commit introduce the "prefetch" tri-state property, which enable granular control (at dataset/volume level) for prefetching. This patch does not remove the zfs_prefetch_disable, which remains a system-wide switch for enable/disable prefetch. However, to avoid duplication, it would be preferable to deprecate and then remove the module tunable. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Alexander Motin <[email protected]> Reviewed-by: Ameer Hamza <[email protected]> Signed-off-by: Gionatan Danti <[email protected]> Co-authored-by: Gionatan Danti <[email protected]> Closes #15237 Closes #15436
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