Ryan Moeller 009cc8e884 Make zc_nvlist_src_size limit tunable ... We limit the size of nvlists passed to the kernel so a user cannot make the kernel do an unreasonably large allocation. On FreeBSD this limit was 128 kiB, which turns out to be a bit too small when doing some operations involving a large number of datasets or snapshots, for example replication. Make this limit tunable, with a platform-specific auto default. Linux keeps its limit at KMALLOC_MAX_SIZE. FreeBSD uses 1/4 of the system limit on user wired memory, which allows it to scale depending on system configuration. Reviewed-by: Matt Macy <mmacy@FreeBSD.org> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org> Issue #6572 Closes #10706		2020-08-18 09:33:55 -07:00
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spl	Remove KMC_KMEM and KMC_VMEM	2020-08-17 16:04:28 -07:00
zfs	Make zc_nvlist_src_size limit tunable	2020-08-18 09:33:55 -07:00