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| author |   Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2013-09-18 17:21:34 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-10-24 17:16:53 +0200 |
| commit | f1d86b61fb6692c592e937dfb5069e4057855a3b (patch) | |
| tree | ebf8feb3c5067a774492f9b52a87446e8d32853f /Documentation/s390 | |
| parent | s390/bitops: optimize set_bit() for constant values (diff) | |
| download | linux-dev-f1d86b61fb6692c592e937dfb5069e4057855a3b.tar.xz linux-dev-f1d86b61fb6692c592e937dfb5069e4057855a3b.zip | |
s390/s390dbf: add debug_level_enabled() function
Add the debug_level_enabled() function to check if debug events for
a particular level would be logged. This might help to save cycles
for debug events that require additional information collection.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'Documentation/s390')
| -rw-r--r-- | Documentation/s390/s390dbf.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/s390/s390dbf.txt b/Documentation/s390/s390dbf.txt index fcaf0b4efba2..3da163383c93 100644 --- a/Documentation/s390/s390dbf.txt +++ b/Documentation/s390/s390dbf.txt @@ -158,6 +158,16 @@ Return Value: none Description: Sets new actual debug level if new_level is valid. --------------------------------------------------------------------------- +bool debug_level_enabled (debug_info_t * id, int level); + +Parameter: id: handle for debug log + level: debug level + +Return Value: True if level is less or equal to the current debug level. + +Description: Returns true if debug events for the specified level would be + logged. Otherwise returns false. +--------------------------------------------------------------------------- void debug_stop_all(void); Parameter: none |