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Matthew Ahrens
944a37248a
When a pool is initially created (by `zpool create`), predictive prefetch is inadvertently disabled, until the pool is export/import-ed, or the machine is rebooted. When device removal was introduced, we added some code to disable predictive prefetching until indirect vdevs have been loaded. This resulted in the "default state" of prefetch being disabled, until we proactively enable it after indirect vdevs are loaded. Unfortunately this resulted in a few bugs where in some code paths we neglect to enable predictive prefetch. The first of these was fixed by https://github.com/zfsonlinux/zfs/commit/20507534d4ede14d4dd82c99fc8d461704ce7419 This commit fixes another case where we also need to explicitly enable predictive prefetch, when the pool is initially created. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Matthew Ahrens <mahrens@delphix.com> Closes #8577
ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.
Official Resources
Installation
Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.
Contribute & Develop
We have a separate document with contribution guidelines.
Release
ZFS on Linux is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported kernel versions.