Hello linux janitors, from kmalloc man page: GFP_ATOMIC - Allocation will not sleep. May use emergency pools. For example, use this inside interrupt handlers. GFP_NOWAIT - Allocation will not sleep. grepping linux kernel tree: [0:/usr/linux-src> ]$ grep -R GFP_ATOMIC . |wc -l 4452 [0:/usr/linux-src> ]$ grep -R GFP_NOWAIT . |wc -l 220 (alternative flags and some accounting: total k.*alloc calls: 34320 GFP_KERNEL appearances: 23819 GDP_ATOMIC appearances: 4452 GFP_NOWAIT appearances: 220 unaccounted: 5829) GFP_ATOMIC is meant for interrupt handlers and emergency pool. Widespread misuse renders the emergency pool useless. I believe the vast majority of such uses can be converted to GFP_NOWAIT. Even valid uses of GFP_ATOMIC are likely rendered useless by this widespread misuse. You may wish to replace such calls. Cheers, coypu -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
