On Mon, May 23, 2016 at 04:09:26PM -0400, Bob Peterson wrote: > I've been looking at this again. Where are the calls to the fs-specific bits > for fiemap? In the iomap_ops structure passed to iomap_fiemap. > It looks like iomap_fiemap calls iomap_apply, which calls > iomap_fiemap_actor, but that doesn't call any ops->iomap_get_iomap or similar. > It calls the iomap_begin (which BTW has a comment that says "Execute a iomap > write" which is probably wrong and should be more generic, as for cases like > fiemap) and it calls iomap_end. But it never calls an fs-specific actor > anywhere. Am I missing something? My earlier version passed in the actor > function, as per Dave Chinner's request, but yours doesn't. The iomap_begin callback is where you do the mapping. the iomap_end callback does any required cleanup, which in case of GFS2 probably would be dropping the cluster lock protecting the mapping. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
