On Thu, 2022-04-21 at 19:48 -0400, Kent Overstreet wrote: > This adds printbufs: simple heap-allocated strings meant for building up > structured messages, for logging/procfs/sysfs and elsewhere. They've > been heavily used in bcachefs for writing .to_text() functions/methods - > pretty printers, which has in turn greatly improved the overall quality > of error messages. > > Basic usage is documented in include/linux/printbuf.h. Given the maximum printk output is less than 1024 bytes, why should this be allowed to be larger than that or larger than PAGE_SIZE? > + * pr_human_readable_u64, pr_human_readable_s64: Print an integer with human > + * readable units. Why not extend vsprintf for this using something like %pH[8|16|32|64] or %pH[c|s|l|ll|uc|us|ul|ull] ?
