On Wed, May 29, 2013 at 11:34:34AM -0700, Andrew Morton wrote: > > > > + if (size <= 0 || gfp & __GFP_HIGHMEM) > > > > + return -EINVAL; > > > > + if (size > PAGE_SIZE) > > > > + return -E2BIG; > > > > > > Means "Argument list too long" and isn't appropriate here. > > > > Ok, I need a return value other than -EINVAL to convey to the user that the > > allocation is larger than what the allocator can hold. I don't see an existing > > errno that would be more suited for that. Do you have a suggestion? > > ENOMEM perhaps. That's also somewhat misleading, but I guess there's > precedent for ENOMEM meaning "allocation too large" as well as "out > of memory". Ah, spoke to soon. ENOMEM is already being used to indicate that an allocation to grow the pool failed. Seth -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>