On Thu, Jul 02, 2015 at 09:16:34AM +0300, Nikolay Borisov wrote: > > Just a question that popped to my mind after discussing with a colleague > - Is GFP_NOFS enough here or should it be GFP_NOIO? Presumably the > latter is a stronger guarantee that we are not going to hit any > fs/writeback related code? GFP_NOFS is fine here; file system code calls the I/O codepaths, but device driver code doesn't call fs code. Put another way, if there are pages that are backed by a block device, which can be cleaned without going through the FS code paths, it's fine to let that happen while we are inside file system code. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
