> Actually, a write to memory for a memory mapped file is more similar to > write(2). If two programs have the same file mapped then the effect on the > memory they share is instantaneous because it is the same physical memory. > A mmapped file becomes shared memory as soon as it is mapped at least twice.
True, for some interpretation of "instantaneous". It does not establish a happens-before relationship though, as store-munmap/mmap-load does. _______________________________________________ zfs-discuss mailing list email@example.com http://mail.opensolaris.org/mailman/listinfo/zfs-discuss