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author | Robert Richter <robert.richter@amd.com> | 2008-12-25 17:26:07 +0100 |
---|---|---|
committer | Robert Richter <robert.richter@amd.com> | 2009-01-07 22:41:47 +0100 |
commit | d9928c25a6960cf128c2078a89fe6f8e0180ff60 (patch) | |
tree | a6aa4141a531beb6f5d2025d8656d9404ae64ba8 /drivers/oprofile/cpu_buffer.h | |
parent | ae735e9964b4584923f2997d98a8d80ae9c1a75c (diff) |
oprofile: add op_cpu_buffer_add_data()
This function can be used to attach data to a sample. It returns the
remaining free buffer size that has been reserved with
op_cpu_buffer_write_reserve().
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'drivers/oprofile/cpu_buffer.h')
-rw-r--r-- | drivers/oprofile/cpu_buffer.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h index e634dcf2f26..e178dd2799c 100644 --- a/drivers/oprofile/cpu_buffer.h +++ b/drivers/oprofile/cpu_buffer.h @@ -78,6 +78,18 @@ int op_cpu_buffer_write_commit(struct op_entry *entry); struct op_sample *op_cpu_buffer_read_entry(struct op_entry *entry, int cpu); unsigned long op_cpu_buffer_entries(int cpu); +/* returns the remaining free size of data in the entry */ +static inline +int op_cpu_buffer_add_data(struct op_entry *entry, unsigned long val) +{ + if (!entry->size) + return 0; + *entry->data = val; + entry->size--; + entry->data++; + return entry->size; +} + /* extra data flags */ #define KERNEL_CTX_SWITCH (1UL << 0) #define IS_KERNEL (1UL << 1) |