oprofile: add op_cpu_buffer_write_reserve()

Browse source

This function prepares the cpu buffer to write a sample.

Struct op_entry is used during operations on the ring buffer while
struct op_sample contains the data that is stored in the ring
buffer. Struct entry can be uninitialized. The function reserves a
data array that is specified by size. Use op_cpu_buffer_write_commit()
after preparing the sample. In case of errors a null pointer is
returned, otherwise the pointer to the sample.

Signed-off-by: Robert Richter <robert.richter@amd.com>

...

This commit is contained in:

Robert Richter 2008-12-25 17:26:07 +01:00

parent d358e75fc4

commit 2cc28b9f26

2 changed files with 37 additions and 15 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

43

drivers/oprofile/cpu_buffer.c

View file

9

drivers/oprofile/cpu_buffer.h

View file