> + TP_printk("readahead-%s(dev=%d:%d, ino=%lu, "
please don't duplicate the tracepoint name in the output string.
Also don't use braces, as it jsut complicates parsing.
> + "req=%lu+%lu, ra=%lu+%d-%d, async=%d) = %d",
> + ra_pattern_names[__entry->pattern],
Instead of doing a manual array lookup please use __print_symbolic so
that users of the binary interface (like trace-cmd) also get the
right output.
> --- linux-next.orig/mm/readahead.c 2011-11-29 20:58:53.000000000 +0800
> +++ linux-next/mm/readahead.c 2011-11-29 20:59:20.000000000 +0800
> @@ -29,6 +29,9 @@ static const char * const ra_pattern_nam
> [RA_PATTERN_ALL] = "all",
> };
>
> +#define CREATE_TRACE_POINTS
> +#include <trace/events/vfs.h>
Maybe we should create a new fs/trace.c just for this instead of stickin
it into the first file that created a tracepoint in the "vfs" namespace.
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