Justin Gottula cffa8372f4 Fix most zfs_arc_* mod params not actually being modifiable at runtime ... Most of the zfs_arc_* module parameters do not have their values used by the ARC code directly. Instead, there is a function, arc_tuning_update, which is called during module initialization and periodically thereafter, whose job is to fetch the module parameter values, clamp/ limit them appropriately, and then assign those values to a separate set of internal variables that are actually referenced by the ARC code. Commit 3ec34e55 featured an overhaul of arc_reclaim_thread, which is the former location where the post-init-time calls to arc_tuning_update would occur. The rework split the work previously done by the arc_reclaim_thread into a pair of replacement threads; and unfortunately, the call to arc_tuning_update fell through the cracks and was lost in the reorganization. This meant that changing almost any ARC-related zfs module parameter via /sys/module/zfs/parameters/ would result in the module parameter value itself appearing to change; however the modification would not actually propagate to the ARC code and have any real effect. This commit reinstates the post-init-time call to arc_tuning_update. It is now called during arc_adjust_cb_check; this should be equivalent to its former call location in arc_reclaim_thread. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Justin Gottula <justin@jgottula.com> Closes #8405 Closes #8463		2019-03-12 15:03:59 -07:00
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avl	Update build system and packaging	2018-05-29 16:00:33 -07:00
icp	Fedora 28: Fix misc bounds check compiler warnings	2018-08-26 12:55:44 -07:00
lua	Update build system and packaging	2018-05-29 16:00:33 -07:00
nvpair	Add new fnvlist_lookup_* functions	2018-10-03 15:30:55 -07:00
spl	Linux 5.1 compat: get_ds() removed	2019-03-07 14:44:23 -08:00
unicode	Update build system and packaging	2018-05-29 16:00:33 -07:00
zcommon	Linux 5.0 compat: access_ok() drops 'type' parameter	2019-01-28 10:11:10 -08:00
zfs	Fix most zfs_arc_* mod params not actually being modifiable at runtime	2019-03-12 15:03:59 -07:00
.gitignore	Prepare SPL repo to merge with ZFS repo	2018-05-29 14:51:39 -07:00
Makefile.in	Linux 5.0 compat: Fix SUBDIRs	2019-01-28 10:11:45 -08:00