linux_dsm_epyc7002/include
Vlastimil Babka 1743d05060 mm, compaction: export tracepoints zone names to userspace
Some compaction tracepoints use zone->name to print which zone is being
compacted.  This works for in-kernel printing, but not userspace trace
printing of raw captured trace such as via trace-cmd report.

This patch uses zone_idx() instead of zone->name as the raw value, and
when printing, converts the zone_type to string using the appropriate EM()
macros and some ugly tricks to overcome the problem that half the values
depend on CONFIG_ options and one does not simply use #ifdef inside of
#define.

trace-cmd output before:
transhuge-stres-4235  [000]   453.149280: mm_compaction_finished: node=0
zone=ffffffff81815d7a order=9 ret=partial

after:
transhuge-stres-4235  [000]   453.149280: mm_compaction_finished: node=0
zone=Normal   order=9 ret=partial

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-05 19:34:48 -08:00
..
acpi Merge branch 'acpi-processor' 2015-11-02 00:50:37 +01:00
asm-generic Power management and ACPI updates for v4.4-rc1 2015-11-04 18:10:13 -08:00
clocksource
crypto
drm
dt-bindings char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
keys
kvm
linux mm, compaction: export tracepoints status strings to userspace 2015-11-05 19:34:48 -08:00
math-emu
media
memory
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-03 13:41:45 -05:00
pcmcia
ras
rdma
rxrpc
scsi
soc
sound
target
trace mm, compaction: export tracepoints zone names to userspace 2015-11-05 19:34:48 -08:00
uapi char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
video
xen
Kbuild