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Subject[PATCH v2 1/4] driver/scsi/fnic/fnic_trace: Use kvcalloc instead of vmalloc+memset
Date
The kvcalloc is better than vmalloc() + memset(), So replace them to make
the code concise.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
---
drivers/scsi/fnic/fnic_trace.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c
index 8271785..57f67af 100644
--- a/drivers/scsi/fnic/fnic_trace.c
+++ b/drivers/scsi/fnic/fnic_trace.c
@@ -468,14 +468,13 @@ int fnic_trace_buf_init(void)
fnic_max_trace_entries = (trace_max_pages * PAGE_SIZE)/
FNIC_ENTRY_SIZE_BYTES;

- fnic_trace_buf_p = (unsigned long)vmalloc((trace_max_pages * PAGE_SIZE));
+ fnic_trace_buf_p = (unsigned long)kvcalloc(trace_max_pages, PAGE_SIZE, GFP_KERNEL);
if (!fnic_trace_buf_p) {
printk(KERN_ERR PFX "Failed to allocate memory "
"for fnic_trace_buf_p\n");
err = -ENOMEM;
goto err_fnic_trace_buf_init;
}
- memset((void *)fnic_trace_buf_p, 0, (trace_max_pages * PAGE_SIZE));

fnic_trace_entries.page_offset =
vmalloc(array_size(fnic_max_trace_entries,
@@ -484,7 +483,7 @@ int fnic_trace_buf_init(void)
printk(KERN_ERR PFX "Failed to allocate memory for"
" page_offset\n");
if (fnic_trace_buf_p) {
- vfree((void *)fnic_trace_buf_p);
+ kvfree((void *)fnic_trace_buf_p);
fnic_trace_buf_p = 0;
}
err = -ENOMEM;
@@ -529,7 +528,7 @@ void fnic_trace_free(void)
fnic_trace_entries.page_offset = NULL;
}
if (fnic_trace_buf_p) {
- vfree((void *)fnic_trace_buf_p);
+ kvfree((void *)fnic_trace_buf_p);
fnic_trace_buf_p = 0;
}
printk(KERN_INFO PFX "Successfully Freed Trace Buffer\n");
--
1.7.12.4
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