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| author | Peter Oberparleiter | 2015-12-18 12:59:40 +0100 |
|---|---|---|
| committer | Martin Schwidefsky | 2015-12-18 14:59:37 +0100 |
| commit | 11b64c8acca05d7e50a873e0e8758b75d6d6650f (patch) | |
| tree | 90d2c2012ec94000c8041900e23253dc851f90b0 /drivers/s390/cio/Makefile | |
| parent | s390/cio: Introduce common I/O layer tracepoints (diff) | |
| download | kernel-qcow2-linux-11b64c8acca05d7e50a873e0e8758b75d6d6650f.tar.gz kernel-qcow2-linux-11b64c8acca05d7e50a873e0e8758b75d6d6650f.tar.xz kernel-qcow2-linux-11b64c8acca05d7e50a873e0e8758b75d6d6650f.zip | |
s390/cio: Change I/O instructions from inline to normal functions
Adding tracepoints to inline functions adds tracepoint invocation code
for each instance where the function is inlined. The resulting increase
in kernel code size can have negative impact:
- More cache misses in instruction cache
- Reduced amount of DMA-capable memory
Therefore change all functions implementing I/O instructions from inline
to normal functions.
Bloat-o-meter summary after change (using performance_defconfig):
add/remove: 24/2 grow/shrink: 4/39 up/down: 2205/-4858 (-2653)
Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/Makefile')
| -rw-r--r-- | drivers/s390/cio/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile index 2c7cf0b3c5a0..3ab9aedeb84a 100644 --- a/drivers/s390/cio/Makefile +++ b/drivers/s390/cio/Makefile @@ -6,7 +6,7 @@ CFLAGS_trace.o := -I$(src) obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o \ - fcx.o itcw.o crw.o ccwreq.o trace.o + fcx.o itcw.o crw.o ccwreq.o trace.o ioasm.o ccw_device-objs += device.o device_fsm.o device_ops.o ccw_device-objs += device_id.o device_pgid.o device_status.o obj-y += ccw_device.o cmf.o |