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mmc: host: remove mmcq performance numbers statistics

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mmcq performance numbers are not captured since asynchronous
MMC request support got added in MMC block driver. So printing
out these numbers (which are all zeros) just adds confusion.
This patch removes the printing of mmcq performance numbers
statistics.

CRs-Fixed: 364206
Change-Id: I7213b11c8e9e055894c9902af7e975de3be1c519
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
This commit is contained in:
Subhash Jadavani 2012-05-22 22:59:54 +05:30
parent 16f0e48102
commit 357f7f515e
2 changed files with 4 additions and 17 deletions
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17
drivers/mmc/core/host.c
View file

@ -615,33 +615,24 @@ static ssize_t
show_perf(struct device *dev, struct device_attribute *attr, char *buf) show_perf(struct device *dev, struct device_attribute *attr, char *buf)
{ {
struct mmc_host *host = dev_get_drvdata(dev); struct mmc_host *host = dev_get_drvdata(dev);
int64_t rtime_mmcq, wtime_mmcq, rtime_drv, wtime_drv; int64_t rtime_drv, wtime_drv;
unsigned long rbytes_mmcq, wbytes_mmcq, rbytes_drv, wbytes_drv; unsigned long rbytes_drv, wbytes_drv;
spin_lock(&host->lock); spin_lock(&host->lock);
rbytes_mmcq = host->perf.rbytes_mmcq;
wbytes_mmcq = host->perf.wbytes_mmcq;
rbytes_drv = host->perf.rbytes_drv; rbytes_drv = host->perf.rbytes_drv;
wbytes_drv = host->perf.wbytes_drv; wbytes_drv = host->perf.wbytes_drv;
rtime_mmcq = ktime_to_us(host->perf.rtime_mmcq);
wtime_mmcq = ktime_to_us(host->perf.wtime_mmcq);
rtime_drv = ktime_to_us(host->perf.rtime_drv); rtime_drv = ktime_to_us(host->perf.rtime_drv);
wtime_drv = ktime_to_us(host->perf.wtime_drv); wtime_drv = ktime_to_us(host->perf.wtime_drv);
spin_unlock(&host->lock); spin_unlock(&host->lock);
return snprintf(buf, PAGE_SIZE, "Write performance at MMCQ Level:" return snprintf(buf, PAGE_SIZE, "Write performance at driver Level:"
"%lu bytes in %lld microseconds\n"
"Read performance at MMCQ Level:"
"%lu bytes in %lld microseconds\n"
"Write performance at driver Level:"
"%lu bytes in %lld microseconds\n" "%lu bytes in %lld microseconds\n"
"Read performance at driver Level:" "Read performance at driver Level:"
"%lu bytes in %lld microseconds\n", "%lu bytes in %lld microseconds\n",
wbytes_mmcq, wtime_mmcq, rbytes_mmcq, wbytes_drv, wtime_drv,
rtime_mmcq, wbytes_drv, wtime_drv,
rbytes_drv, rtime_drv); rbytes_drv, rtime_drv);
} }

4
include/linux/mmc/host.h
View file

@ -432,12 +432,8 @@ struct mmc_host {
#ifdef CONFIG_MMC_PERF_PROFILING #ifdef CONFIG_MMC_PERF_PROFILING
struct { struct {
unsigned long rbytes_mmcq; /* Rd bytes MMC queue */
unsigned long wbytes_mmcq; /* Wr bytes MMC queue */
unsigned long rbytes_drv; /* Rd bytes MMC Host */ unsigned long rbytes_drv; /* Rd bytes MMC Host */
unsigned long wbytes_drv; /* Wr bytes MMC Host */ unsigned long wbytes_drv; /* Wr bytes MMC Host */
ktime_t rtime_mmcq; /* Rd time MMC queue */
ktime_t wtime_mmcq; /* Wr time MMC queue */
ktime_t rtime_drv; /* Rd time MMC Host */ ktime_t rtime_drv; /* Rd time MMC Host */
ktime_t wtime_drv; /* Wr time MMC Host */ ktime_t wtime_drv; /* Wr time MMC Host */
ktime_t start; ktime_t start;