Commit f6c73a11 authored by Ritesh Harjani (IBM)'s avatar Ritesh Harjani (IBM) Committed by Darrick J. Wong
Browse files

fs.h: Add TRACE_IOCB_STRINGS for use in trace points 



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: default avatarDisha Goel <disgoel@linux.ibm.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarRitesh Harjani (IBM) <ritesh.list@gmail.com>
Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
[djwong: line up strings all prettylike]
Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
parent 09a9639e

include/linux/fs.h

+14 −0
Original line number Diff line number Diff line
@@ -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,		"EVENTFD"}, \

	{ IOCB_DIRECT,		"DIRECT" }, \

	{ IOCB_WRITE,		"WRITE" }, \

	{ IOCB_WAITQ,		"WAITQ" }, \

	{ IOCB_NOIO,		"NOIO" }, \

	{ IOCB_ALLOC_CACHE,	"ALLOC_CACHE" }



struct kiocb {

	struct file		*ki_filp;

	loff_t			ki_pos;