compress: change zio_compress API to use ABDs

This commit changes the frontend zio_compress_data and
zio_decompress_data APIs to take ABD points instead of buffer pointers.

All callers are updated to match. Any that already have an appropriate
ABD nearby now use it directly, while at the rest we create an one.

Internally, the ABDs are passed through to the provider directly.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>

module/zfs/dmu_recv.c

@@ -1391,7 +1391,7 @@ do_corrective_recv(struct receive_writer_arg *rwa, struct drr_write *drrw,
 		abd_t *dabd = abd_alloc_linear(
 		    drrw->drr_logical_size, B_FALSE);
 		err = zio_decompress_data(drrw->drr_compressiontype,
-		    abd, abd_to_buf(dabd), abd_get_size(abd),
+		    abd, dabd, abd_get_size(abd),
 		    abd_get_size(dabd), NULL);
 
 		if (err != 0) {
@@ -1407,9 +1407,8 @@ do_corrective_recv(struct receive_writer_arg *rwa, struct drr_write *drrw,
 		/* Recompress the data */
 		abd_t *cabd = abd_alloc_linear(BP_GET_PSIZE(bp),
 		    B_FALSE);
-		void *buf = abd_to_buf(cabd);
 		uint64_t csize = zio_compress_data(BP_GET_COMPRESS(bp),
-		    abd, &buf, abd_get_size(abd),
+		    abd, &cabd, abd_get_size(abd),
 		    rwa->os->os_complevel);
 		abd_zero_off(cabd, csize, BP_GET_PSIZE(bp) - csize);
 		/* Swap in newly compressed data into the abd */
@@ -2221,7 +2220,7 @@ flush_write_batch_impl(struct receive_writer_arg *rwa)
 
 				err = zio_decompress_data(
 				    drrw->drr_compressiontype,
-				    abd, abd_to_buf(decomp_abd),
+				    abd, decomp_abd,
 				    abd_get_size(abd),
 				    abd_get_size(decomp_abd), NULL);