20 Dec
2019
20 Dec
'19
8:37 p.m.
* Mathieu Desnoyers:
diff --git a/include/uapi/linux/rseq.h b/include/uapi/linux/rseq.h index 9a402fdb60e9..6f26b0b148a6 100644 --- a/include/uapi/linux/rseq.h +++ b/include/uapi/linux/rseq.h @@ -100,7 +100,9 @@ struct rseq { * instruction sequence block, as well as when the kernel detects that * it is preempting or delivering a signal outside of the range * targeted by the rseq_cs. Also needs to be set to NULL by user-space
* before reclaiming memory that contains the targeted struct rseq_cs.
* before reclaiming memory that contains the targeted struct rseq_cs* or reclaiming memory that contains the code refered to by the* start_ip and post_commit_offset fields of struct rseq_cs.
Maybe mention that it's good practice to clear rseq_cs before returning from a function that contains a restartable sequence?
That will deal with the dlclose issue because even if the function calls dlclose itself, unmapping something on call stack for dlclose is already undefined.