On 3 May 2012 17:13, Artem Bityutskiy <dedekind1@xxxxxxxxx> wrote: > On Thu, 2012-05-03 at 16:30 +1000, Nick Piggin wrote: >> Note that in writeback paths, a "good citizen" filesystem should not require >> any allocations, or at least it should be able to tolerate allocation failures. >> So fixing that would be a good idea anyway. > > This is a good point, but UBIFS kmallocs(GFP_NOFS) when doing I/O > because it needs to compress/decompress. But I agree that if kmalloc > fails, we should have a fall-back reserve buffer protected by a mutex > for memory pressure situations. AKA, a mempool :) -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>