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By default, `spl_kmem_cache_expire` is `KMC_EXPIRE_MEM`, meaning that objects will be removed from kmem cache magazines by `spl_kmem_cache_reap_now()`. There is also a module parameter to change this to `KMC_EXPIRE_AGE`, which establishes a maximum lifetime for objects to stay in the magazine. This setting has rarely, if ever, been used, and is not regularly tested. This commit removes the code for `KMC_EXPIRE_AGE`, and associated module parameters. Additionally, the unused module parameter `spl_kmem_cache_obj_per_slab_min` is removed. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Closes #10608
The Solaris Porting Layer, SPL, is a Linux kernel module which provides a compatibility layer used by the ZFS on Linux project.
Installation
The latest version of the SPL is maintained as part of this repository. Only when building ZFS version 0.7.x or earlier must an external SPL release be used. These releases can be found at:
- Version 0.7.x: https://github.com/zfsonlinux/spl/tree/spl-0.7-release
- Version 0.6.5.x: https://github.com/zfsonlinux/spl/tree/spl-0.6.5-release
Release
The SPL is released under a GPLv2 license.
For more details see the NOTICE and THIRDPARTYLICENSE files; UCRL-CODE-235197