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spa_prop_get: require caller to supply output nvlist

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All callers to spa_prop_get() and spa_prop_get_nvlist() supplied their
own preallocated nvlist (except ztest), so we can remove the option to
have them allocate one if none is supplied.

This sidesteps a bug in spa_prop_get(), where the error var wasn't
initialised, which could lead to the provided nvlist being freed at the
end.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16505
This commit is contained in:
Rob Norris
2024-09-07 01:45:58 +10:00
committed by GitHub
parent 17dd66deda
commit b109925820
4 changed files with 53 additions and 66 deletions
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include/sys/spa.h
+2 -2
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@@ -1201,9 +1201,9 @@ extern void spa_boot_init(void);
/* properties */
extern int spa_prop_set(spa_t *spa, nvlist_t *nvp);
extern int spa_prop_get(spa_t *spa, nvlist_t **nvp);
extern int spa_prop_get(spa_t *spa, nvlist_t *nvp);
extern int spa_prop_get_nvlist(spa_t *spa, char **props,
unsigned int n_props, nvlist_t **outnvl);
unsigned int n_props, nvlist_t *outnvl);
extern void spa_prop_clear_bootfs(spa_t *spa, uint64_t obj, dmu_tx_t *tx);
extern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t);