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ddt: lift dedup stats out to separate file

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We want to add other kinds of dedup-related objects and keep stats for
them. This makes those functions easier to use from outside ddt.c.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: iXsystems, Inc.
Closes #15887
This commit is contained in:
Rob Norris
2023-05-16 13:30:26 +10:00
committed by Brian Behlendorf
parent 0cb1ef60ae
commit 5973854153
6 changed files with 207 additions and 171 deletions
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include/sys/ddt.h
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@@ -204,6 +204,7 @@ extern void ddt_phys_free(ddt_t *ddt, ddt_key_t *ddk, ddt_phys_t *ddp,
extern ddt_phys_t *ddt_phys_select(const ddt_entry_t *dde, const blkptr_t *bp);
extern uint64_t ddt_phys_total_refcnt(const ddt_entry_t *dde);
extern void ddt_stat_update(ddt_t *ddt, ddt_entry_t *dde, uint64_t neg);
extern void ddt_stat_add(ddt_stat_t *dst, const ddt_stat_t *src, uint64_t neg);
extern void ddt_histogram_add(ddt_histogram_t *dst, const ddt_histogram_t *src);