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brt_vdev_realloc: use vmem_alloc for large allocation 

bv_entcount can be a relatively large allocation (see comment for
BRT_RANGESIZE), so get it from the big allocator.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Kay Pedersen <mail@mkwg.de>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Sponsored-By: OpenDrives Inc.
Sponsored-By: Klara Inc.
Closes #15050
This commit is contained in:
Rob Norris 2023-06-22 13:44:00 +10:00 committed by Brian Behlendorf
parent 8d21c002c6
commit 87a6e135c5
1 changed files with 3 additions and 3 deletions
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6
module/zfs/brt.c
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@ -680,7 +680,7 @@ brt_vdev_realloc(brt_t *brt, brt_vdev_t *brtvd)
size = (vdev_get_min_asize(vd) - 1) / brt->brt_rangesize + 1;
spa_config_exit(brt->brt_spa, SCL_VDEV, FTAG);
entcount = kmem_zalloc(sizeof (entcount[0]) * size, KM_SLEEP);
entcount = vmem_zalloc(sizeof (entcount[0]) * size, KM_SLEEP);
nblocks = BRT_RANGESIZE_TO_NBLOCKS(size);
bitmap = kmem_zalloc(BT_SIZEOFMAP(nblocks), KM_SLEEP);
@ -709,7 +709,7 @@ brt_vdev_realloc(brt_t *brt, brt_vdev_t *brtvd)
sizeof (entcount[0]) * MIN(size, brtvd->bv_size));
memcpy(bitmap, brtvd->bv_bitmap, MIN(BT_SIZEOFMAP(nblocks),
BT_SIZEOFMAP(brtvd->bv_nblocks)));
kmem_free(brtvd->bv_entcount,
vmem_free(brtvd->bv_entcount,
sizeof (entcount[0]) * brtvd->bv_size);
kmem_free(brtvd->bv_bitmap, BT_SIZEOFMAP(brtvd->bv_nblocks));
}
@ -792,7 +792,7 @@ brt_vdev_dealloc(brt_t *brt, brt_vdev_t *brtvd)
ASSERT(RW_WRITE_HELD(&brt->brt_lock));
ASSERT(brtvd->bv_initiated);
kmem_free(brtvd->bv_entcount, sizeof (uint16_t) * brtvd->bv_size);
vmem_free(brtvd->bv_entcount, sizeof (uint16_t) * brtvd->bv_size);
brtvd->bv_entcount = NULL;
kmem_free(brtvd->bv_bitmap, BT_SIZEOFMAP(brtvd->bv_nblocks));
brtvd->bv_bitmap = NULL;