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Selectable block allocators

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ZFS historically has had several space allocators that were
dynamically selectable.  While these have been retained in 
OpenZFS, only a single allocator has been statically compiled 
in. This patch compiles all allocators for OpenZFS and provides 
a module parameter to allow for manual selection between them.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Edmund Nadolski <edmund.nadolski@ixsystems.com>
Closes #15218
This commit is contained in:
ednadolski-ix
2023-09-01 19:00:30 -06:00
committed by GitHub
parent 71472bf375
commit 95f71c019d
9 changed files with 127 additions and 31 deletions
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include/os/freebsd/spl/sys/mod_os.h
+3
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@@ -73,6 +73,9 @@
#define param_set_deadman_failmode_args(var) \
CTLTYPE_STRING, NULL, 0, param_set_deadman_failmode, "A"
#define param_set_active_allocator_args(var) \
CTLTYPE_STRING, NULL, 0, param_set_active_allocator, "A"
#define param_set_deadman_synctime_args(var) \
CTLTYPE_U64, NULL, 0, param_set_deadman_synctime, "QU"