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ut/reduce: modify write_maps test to write full chunks

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This test verifies that all of the io_unit_index[] entries
are written.  For that to really happen, the write for
the chunks must not be compressible.  Currently the compress
algorithm just copies the data and doesn't actually
compress - so writing a partial chunk works OK for this test.
But upcoming patches will add a 'real' compression unit test
algorithm - at which point, writing just part of a chunk
will be compressible since the non-written parts will be all
zero.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ib48b9bb5a782571689b281a955e01682e21ee223

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449566
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Jim Harris 2019-03-29 01:26:16 -07:00 committed by Ben Walker
parent d25f2db94a
commit cdd64c1c8c
1 changed files with 9 additions and 6 deletions
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15
test/unit/lib/reduce/reduce.c/reduce_ut.c
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@ -698,14 +698,16 @@ _write_maps(uint32_t backing_blocklen)
struct spdk_reduce_vol_params params = {};
struct spdk_reduce_backing_dev backing_dev = {};
struct iovec iov;
char buf[16 * 1024]; /* chunk size */
uint32_t i;
const int bufsize = 16 * 1024; /* chunk size */
char buf[bufsize];
uint32_t num_lbas, i;
uint64_t old_chunk0_map_index, new_chunk0_map_index;
struct spdk_reduce_chunk_map *old_chunk0_map, *new_chunk0_map;
params.chunk_size = 16 * 1024;
params.chunk_size = bufsize;
params.backing_io_unit_size = 4096;
params.logical_block_size = 512;
num_lbas = bufsize / params.logical_block_size;
spdk_uuid_generate(&params.uuid);
backing_dev_init(&backing_dev, &params, backing_blocklen);
@ -720,10 +722,11 @@ _write_maps(uint32_t backing_blocklen)
CU_ASSERT(_vol_get_chunk_map_index(g_vol, i) == REDUCE_EMPTY_MAP_ENTRY);
}
ut_build_data_buffer(buf, bufsize, 0x00, 1);
iov.iov_base = buf;
iov.iov_len = params.logical_block_size;
iov.iov_len = bufsize;
g_reduce_errno = -1;
spdk_reduce_vol_writev(g_vol, &iov, 1, 0, 1, write_cb, NULL);
spdk_reduce_vol_writev(g_vol, &iov, 1, 0, num_lbas, write_cb, NULL);
CU_ASSERT(g_reduce_errno == 0);
old_chunk0_map_index = _vol_get_chunk_map_index(g_vol, 0);
@ -738,7 +741,7 @@ _write_maps(uint32_t backing_blocklen)
}
g_reduce_errno = -1;
spdk_reduce_vol_writev(g_vol, &iov, 1, 0, 1, write_cb, NULL);
spdk_reduce_vol_writev(g_vol, &iov, 1, 0, num_lbas, write_cb, NULL);
CU_ASSERT(g_reduce_errno == 0);
new_chunk0_map_index = _vol_get_chunk_map_index(g_vol, 0);