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authorGeorge Amanakis <[email protected]>2020-04-10 13:33:35 -0400
committerGitHub <[email protected]>2020-04-10 10:33:35 -0700
commit77f6826b83b7e27f0996f6d192202c36f65e41fd (patch)
treeb9946c99348bf6742cc41739aeff1a2b952d9d2f /include/sys/arc.h
parent36a6e2335c45212f2609269bcee3004908ac6bcb (diff)
Persistent L2ARC
This commit makes the L2ARC persistent across reboots. We implement a light-weight persistent L2ARC metadata structure that allows L2ARC contents to be recovered after a reboot. This significantly eases the impact a reboot has on read performance on systems with large caches. Reviewed-by: Matthew Ahrens <[email protected]> Reviewed-by: George Wilson <[email protected]> Reviewed-by: Ryan Moeller <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Co-authored-by: Saso Kiselkov <[email protected]> Co-authored-by: Jorgen Lundman <[email protected]> Co-authored-by: George Amanakis <[email protected]> Ported-by: Yuxuan Shui <[email protected]> Signed-off-by: George Amanakis <[email protected]> Closes #925 Closes #1823 Closes #2672 Closes #3744 Closes #9582
Diffstat (limited to 'include/sys/arc.h')
-rw-r--r--include/sys/arc.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/sys/arc.h b/include/sys/arc.h
index 75c483918..f500e1d45 100644
--- a/include/sys/arc.h
+++ b/include/sys/arc.h
@@ -310,10 +310,14 @@ void arc_fini(void);
void l2arc_add_vdev(spa_t *spa, vdev_t *vd);
void l2arc_remove_vdev(vdev_t *vd);
boolean_t l2arc_vdev_present(vdev_t *vd);
+void l2arc_rebuild_vdev(vdev_t *vd, boolean_t reopen);
+boolean_t l2arc_range_check_overlap(uint64_t bottom, uint64_t top,
+ uint64_t check);
void l2arc_init(void);
void l2arc_fini(void);
void l2arc_start(void);
void l2arc_stop(void);
+void l2arc_spa_rebuild_start(spa_t *spa);
#ifndef _KERNEL
extern boolean_t arc_watch;