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Expose dmu_buf_hold_array_by_dnode to platform code

FreeBSD uses this in its pager ops routines

Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
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mattmacy committed Oct 9, 2019
1 parent 381d91d commit 3b1dc5d77d19e62e7e81b6c6832acd295562bb60
Showing with 4 additions and 2 deletions.
  1. +3 −1 include/sys/dmu.h
  2. +1 −1 module/zfs/dmu.c
@@ -564,7 +564,9 @@ int dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset,
void *tag, dmu_buf_t **, int flags);
int dmu_buf_hold_by_dnode(dnode_t *dn, uint64_t offset,
void *tag, dmu_buf_t **dbp, int flags);

int dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset,
uint64_t length, boolean_t read, void *tag, int *numbufsp,
dmu_buf_t ***dbpp, uint32_t flags);
/*
* Add a reference to a dmu buffer that has already been held via
* dmu_buf_hold() in the current context.
@@ -489,7 +489,7 @@ dmu_spill_hold_by_bonus(dmu_buf_t *bonus, uint32_t flags, void *tag,
* and can induce severe lock contention when writing to several files
* whose dnodes are in the same block.
*/
static int
int
dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length,
boolean_t read, void *tag, int *numbufsp, dmu_buf_t ***dbpp, uint32_t flags)
{

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