This is the mail archive of the libc-alpha@sourceware.org mailing list for the glibc project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH] Memory fencing problem in pthread cancellation


On 01/14/2013 07:13 PM, Jeff Law wrote:
I suspect the asm memory clobber is historical, probably introduced to
work around issues with pthread_cancel_init being inlined and the
compiler moving things around too aggressively.  One could make an
argument it should be removed.

It's definitely redundant with the atomic_read_barrier you added.



r~



Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]