diff options
| author | Brian Behlendorf <[email protected]> | 2011-06-24 11:57:14 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-06-24 13:00:08 -0700 |
| commit | 86fd39f354778eb10e77a7c1660b59ca16ffcc16 (patch) | |
| tree | ddba0bbdcc45babd1863a732c96bc475a19251a7 /spl_config.h.in | |
| parent | 79593b0dec57ee94c5bb56cdc2770ebde81ecea9 (diff) | |
Linux 2.6.39 compat, mutex owner
Prior to Linux 2.6.39 when CONFIG_DEBUG_MUTEXES was defined
the kernel stored a thread_info pointer as the mutex owner.
From this you could get the pointer of the current task_struct
to compare with get_current().
As of Linux 2.6.39 this behavior has changed and now the mutex
stores a pointer to the task_struct. This commit detects the
type of pointer stored in the mutex and adjusts the mutex_owner()
and mutex_owned() functions to perform the correct comparision.
Diffstat (limited to 'spl_config.h.in')
| -rw-r--r-- | spl_config.h.in | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/spl_config.h.in b/spl_config.h.in index 95394e6e2..97f0e06f3 100644 --- a/spl_config.h.in +++ b/spl_config.h.in @@ -135,6 +135,9 @@ /* struct mutex has owner */ #undef HAVE_MUTEX_OWNER +/* struct mutex owner is a task_struct */ +#undef HAVE_MUTEX_OWNER_TASK_STRUCT + /* next_online_pgdat() is available */ #undef HAVE_NEXT_ONLINE_PGDAT |