On Thu, Apr 13, 2023 at 02:10:28PM +0530, Ritesh Harjani (IBM) wrote:
> Add TRACE_IOCB_STRINGS macro which can be used in the trace point patch to
> print different flag values with meaningful string output.
>
> Tested-by: Disha Goel <disgoel@xxxxxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
> ---
Fine, but fs.h is such a dumping ground already I hope we can split more
stuff out of it going forward...
> include/linux/fs.h | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 9ca3813f43e2..6903fc15987a 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -340,6 +340,20 @@ enum rw_hint {
> /* can use bio alloc cache */
> #define IOCB_ALLOC_CACHE (1 << 21)
>
> +/* for use in trace events */
> +#define TRACE_IOCB_STRINGS \
> + { IOCB_HIPRI, "HIPRI" }, \
> + { IOCB_DSYNC, "DSYNC" }, \
> + { IOCB_SYNC, "SYNC" }, \
> + { IOCB_NOWAIT, "NOWAIT" }, \
> + { IOCB_APPEND, "APPEND" }, \
> + { IOCB_EVENTFD, "EVENTD"}, \
s/EVENTD/EVENTFD/
