diff options
| author | Frank Ch. Eigler <fche@elastic.org> | 2008-01-26 07:29:43 -0500 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@elastic.org> | 2008-01-26 07:29:43 -0500 |
| commit | 12ff32421213618b5802a90547d80cf7da504502 (patch) | |
| tree | 326cc0efa5719a742f95b7580b605fbc91273de0 /runtime/uprobes/uprobes.h | |
| parent | 96fcddffcf1ff26cd9a5d112bcef2541d8440c09 (diff) | |
| parent | fb10329303b55f4b7af98237e65d72c030df13b0 (diff) | |
| download | systemtap-steved-12ff32421213618b5802a90547d80cf7da504502.tar.gz systemtap-steved-12ff32421213618b5802a90547d80cf7da504502.tar.xz systemtap-steved-12ff32421213618b5802a90547d80cf7da504502.zip | |
Merge branch 'master' of git://sources.redhat.com/git/systemtap
Diffstat (limited to 'runtime/uprobes/uprobes.h')
| -rw-r--r-- | runtime/uprobes/uprobes.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/runtime/uprobes/uprobes.h b/runtime/uprobes/uprobes.h index e8a06599..418518f8 100644 --- a/runtime/uprobes/uprobes.h +++ b/runtime/uprobes/uprobes.h @@ -157,6 +157,13 @@ struct uprobe_ssol_area { /* lock held while finding a free slot */ spinlock_t lock; + /* + * We currently use access_process_vm() to populate instruction + * slots. Calls must be serialized because access_process_vm() + * isn't thread-safe. + */ + struct mutex populate_mutex; + /* Next slot to steal */ int next_slot; |