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Date: Wed, 11 May 2011 00:07:19 -0400
From: Chris Ball <cjb@...top.org>
To: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
Cc: linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
Tony Lindgren <tony@...mide.com>,
Adrian Hunter <adrian.hunter@...ia.com>
Subject: Re: [PATCHv1] mmc_test: minor clean up, use t = &test.area everywhere
Hi Andy, (adding Adrian to CC)
On Tue, May 10 2011, Andy Shevchenko wrote:
> Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
> ---
> drivers/mmc/card/mmc_test.c | 75 +++++++++++++++++++++++++------------------
> 1 files changed, 44 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
> index 35252c1..233cdfa 100644
> --- a/drivers/mmc/card/mmc_test.c
> +++ b/drivers/mmc/card/mmc_test.c
> @@ -1386,8 +1386,9 @@ static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
> */
> static int mmc_test_area_fill(struct mmc_test_card *test)
> {
> - return mmc_test_area_io(test, test->area.max_tfr, test->area.dev_addr,
> - 1, 0, 0);
> + struct mmc_test_area *t = &test->area;
> +
> + return mmc_test_area_io(test, t->max_tfr, t->dev_addr, 1, 0, 0);
> }
>
> /*
> @@ -1400,7 +1401,7 @@ static int mmc_test_area_erase(struct mmc_test_card *test)
> if (!mmc_can_erase(test->card))
> return 0;
>
> - return mmc_erase(test->card, t->dev_addr, test->area.max_sz >> 9,
> + return mmc_erase(test->card, t->dev_addr, t->max_sz >> 9,
> MMC_ERASE_ARG);
> }
>
> @@ -1527,8 +1528,10 @@ static int mmc_test_area_prepare_fill(struct mmc_test_card *test)
> static int mmc_test_best_performance(struct mmc_test_card *test, int write,
> int max_scatter)
> {
> - return mmc_test_area_io(test, test->area.max_tfr, test->area.dev_addr,
> - write, max_scatter, 1);
> + struct mmc_test_area *t = &test->area;
> +
> + return mmc_test_area_io(test, t->max_tfr, t->dev_addr, write,
> + max_scatter, 1);
> }
>
> /*
> @@ -1568,18 +1571,19 @@ static int mmc_test_best_write_perf_max_scatter(struct mmc_test_card *test)
> */
> static int mmc_test_profile_read_perf(struct mmc_test_card *test)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned long sz;
> unsigned int dev_addr;
> int ret;
>
> - for (sz = 512; sz < test->area.max_tfr; sz <<= 1) {
> - dev_addr = test->area.dev_addr + (sz >> 9);
> + for (sz = 512; sz < t->max_tfr; sz <<= 1) {
> + dev_addr = t->dev_addr + (sz >> 9);
> ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
> if (ret)
> return ret;
> }
> - sz = test->area.max_tfr;
> - dev_addr = test->area.dev_addr;
> + sz = t->max_tfr;
> + dev_addr = t->dev_addr;
> return mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
> }
>
> @@ -1588,6 +1592,7 @@ static int mmc_test_profile_read_perf(struct mmc_test_card *test)
> */
> static int mmc_test_profile_write_perf(struct mmc_test_card *test)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned long sz;
> unsigned int dev_addr;
> int ret;
> @@ -1595,8 +1600,8 @@ static int mmc_test_profile_write_perf(struct mmc_test_card *test)
> ret = mmc_test_area_erase(test);
> if (ret)
> return ret;
> - for (sz = 512; sz < test->area.max_tfr; sz <<= 1) {
> - dev_addr = test->area.dev_addr + (sz >> 9);
> + for (sz = 512; sz < t->max_tfr; sz <<= 1) {
> + dev_addr = t->dev_addr + (sz >> 9);
> ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
> if (ret)
> return ret;
> @@ -1604,8 +1609,8 @@ static int mmc_test_profile_write_perf(struct mmc_test_card *test)
> ret = mmc_test_area_erase(test);
> if (ret)
> return ret;
> - sz = test->area.max_tfr;
> - dev_addr = test->area.dev_addr;
> + sz = t->max_tfr;
> + dev_addr = t->dev_addr;
> return mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
> }
>
> @@ -1614,6 +1619,7 @@ static int mmc_test_profile_write_perf(struct mmc_test_card *test)
> */
> static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned long sz;
> unsigned int dev_addr;
> struct timespec ts1, ts2;
> @@ -1625,8 +1631,8 @@ static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
> if (!mmc_can_erase(test->card))
> return RESULT_UNSUP_HOST;
>
> - for (sz = 512; sz < test->area.max_sz; sz <<= 1) {
> - dev_addr = test->area.dev_addr + (sz >> 9);
> + for (sz = 512; sz < t->max_sz; sz <<= 1) {
> + dev_addr = t->dev_addr + (sz >> 9);
> getnstimeofday(&ts1);
> ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
> if (ret)
> @@ -1634,7 +1640,7 @@ static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
> getnstimeofday(&ts2);
> mmc_test_print_rate(test, sz, &ts1, &ts2);
> }
> - dev_addr = test->area.dev_addr;
> + dev_addr = t->dev_addr;
> getnstimeofday(&ts1);
> ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
> if (ret)
> @@ -1646,12 +1652,13 @@ static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
>
> static int mmc_test_seq_read_perf(struct mmc_test_card *test, unsigned long sz)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned int dev_addr, i, cnt;
> struct timespec ts1, ts2;
> int ret;
>
> - cnt = test->area.max_sz / sz;
> - dev_addr = test->area.dev_addr;
> + cnt = t->max_sz / sz;
> + dev_addr = t->dev_addr;
> getnstimeofday(&ts1);
> for (i = 0; i < cnt; i++) {
> ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 0);
> @@ -1669,20 +1676,22 @@ static int mmc_test_seq_read_perf(struct mmc_test_card *test, unsigned long sz)
> */
> static int mmc_test_profile_seq_read_perf(struct mmc_test_card *test)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned long sz;
> int ret;
>
> - for (sz = 512; sz < test->area.max_tfr; sz <<= 1) {
> + for (sz = 512; sz < t->max_tfr; sz <<= 1) {
> ret = mmc_test_seq_read_perf(test, sz);
> if (ret)
> return ret;
> }
> - sz = test->area.max_tfr;
> + sz = t->max_tfr;
> return mmc_test_seq_read_perf(test, sz);
> }
>
> static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned int dev_addr, i, cnt;
> struct timespec ts1, ts2;
> int ret;
> @@ -1690,8 +1699,8 @@ static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
> ret = mmc_test_area_erase(test);
> if (ret)
> return ret;
> - cnt = test->area.max_sz / sz;
> - dev_addr = test->area.dev_addr;
> + cnt = t->max_sz / sz;
> + dev_addr = t->dev_addr;
> getnstimeofday(&ts1);
> for (i = 0; i < cnt; i++) {
> ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 0);
> @@ -1709,15 +1718,16 @@ static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
> */
> static int mmc_test_profile_seq_write_perf(struct mmc_test_card *test)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned long sz;
> int ret;
>
> - for (sz = 512; sz < test->area.max_tfr; sz <<= 1) {
> + for (sz = 512; sz < t->max_tfr; sz <<= 1) {
> ret = mmc_test_seq_write_perf(test, sz);
> if (ret)
> return ret;
> }
> - sz = test->area.max_tfr;
> + sz = t->max_tfr;
> return mmc_test_seq_write_perf(test, sz);
> }
>
> @@ -1726,6 +1736,7 @@ static int mmc_test_profile_seq_write_perf(struct mmc_test_card *test)
> */
> static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned long sz;
> unsigned int dev_addr, i, cnt;
> struct timespec ts1, ts2;
> @@ -1737,15 +1748,15 @@ static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
> if (!mmc_can_erase(test->card))
> return RESULT_UNSUP_HOST;
>
> - for (sz = 512; sz <= test->area.max_sz; sz <<= 1) {
> + for (sz = 512; sz <= t->max_sz; sz <<= 1) {
> ret = mmc_test_area_erase(test);
> if (ret)
> return ret;
> ret = mmc_test_area_fill(test);
> if (ret)
> return ret;
> - cnt = test->area.max_sz / sz;
> - dev_addr = test->area.dev_addr;
> + cnt = t->max_sz / sz;
> + dev_addr = t->dev_addr;
> getnstimeofday(&ts1);
> for (i = 0; i < cnt; i++) {
> ret = mmc_erase(test->card, dev_addr, sz >> 9,
> @@ -1808,11 +1819,12 @@ static int mmc_test_rnd_perf(struct mmc_test_card *test, int write, int print,
>
> static int mmc_test_random_perf(struct mmc_test_card *test, int write)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned int next;
> unsigned long sz;
> int ret;
>
> - for (sz = 512; sz < test->area.max_tfr; sz <<= 1) {
> + for (sz = 512; sz < t->max_tfr; sz <<= 1) {
> /*
> * When writing, try to get more consistent results by running
> * the test twice with exactly the same I/O but outputting the
> @@ -1829,7 +1841,7 @@ static int mmc_test_random_perf(struct mmc_test_card *test, int write)
> if (ret)
> return ret;
> }
> - sz = test->area.max_tfr;
> + sz = t->max_tfr;
> if (write) {
> next = rnd_next;
> ret = mmc_test_rnd_perf(test, write, 0, sz);
> @@ -1859,17 +1871,18 @@ static int mmc_test_random_write_perf(struct mmc_test_card *test)
> static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
> unsigned int tot_sz, int max_scatter)
> {
> + struct mmc_test_area *t = &test->area;
> unsigned int dev_addr, i, cnt, sz, ssz;
> struct timespec ts1, ts2;
> int ret;
>
> - sz = test->area.max_tfr;
> + sz = t->max_tfr;
> +
> /*
> * In the case of a maximally scattered transfer, the maximum transfer
> * size is further limited by using PAGE_SIZE segments.
> */
> if (max_scatter) {
> - struct mmc_test_area *t = &test->area;
> unsigned long max_tfr;
>
> if (t->max_seg_sz >= PAGE_SIZE)
Thanks, pushed to mmc-next for .40.
- Chris.
--
Chris Ball <cjb@...top.org> <http://printf.net/>
One Laptop Per Child
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