diff options
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 e634dcf2f26f..e178dd2799c4 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) |