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lib/ftl: decreased the size of the metadata buffer

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The metadata buffer was allocated in multiples of blocks (as well as
aligned to a block). It's not necessary and is a waste of space.

Change-Id: Icb13c664e82b23ea09bec16fa3c18fa98b722d57
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/455922
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Konrad Sztyber 2019-05-28 10:41:36 +02:00 committed by Jim Harris
parent e1dbe1c84c
commit c92720211d
1 changed files with 2 additions and 3 deletions
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5
lib/ftl/ftl_rwb.c
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@ -150,8 +150,7 @@ ftl_rwb_batch_init(struct ftl_rwb *rwb, struct ftl_rwb_batch *batch, unsigned in
{ {
size_t md_size, i; size_t md_size, i;
md_size = spdk_divide_round_up(rwb->md_size * rwb->xfer_size, FTL_BLOCK_SIZE) * md_size = rwb->md_size * rwb->xfer_size;
FTL_BLOCK_SIZE;
batch->rwb = rwb; batch->rwb = rwb;
batch->pos = pos; batch->pos = pos;
@ -169,7 +168,7 @@ ftl_rwb_batch_init(struct ftl_rwb *rwb, struct ftl_rwb_batch *batch, unsigned in
} }
if (md_size > 0) { if (md_size > 0) {
batch->md_buffer = spdk_dma_zmalloc(md_size, FTL_BLOCK_SIZE, NULL); batch->md_buffer = spdk_dma_zmalloc(md_size, 0, NULL);
if (!batch->md_buffer) { if (!batch->md_buffer) {
return -1; return -1;
} }