diff options
| author | Fei Li | 2017-03-17 10:28:30 +0100 |
|---|---|---|
| committer | Cornelia Huck | 2017-04-21 09:32:09 +0200 |
| commit | bc66d6cbca780c5b8c237b9d355caa8274e5b312 (patch) | |
| tree | dc20c5152425522930d706fc807445858911441b /hw | |
| parent | s390x: initialize flic before I/O subsystems (diff) | |
| download | qemu-bc66d6cbca780c5b8c237b9d355caa8274e5b312.tar.gz qemu-bc66d6cbca780c5b8c237b9d355caa8274e5b312.tar.xz qemu-bc66d6cbca780c5b8c237b9d355caa8274e5b312.zip | |
s390x/flic: cache flic in s390_get_flic
s390_get_flic() is called many times to obtain the flic. This wastes a
lot of time as it calls object_resolve_path() every time. Let's cache
S390FLICState by defining it as static.
Signed-off-by: Fei Li <sherrylf@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/intc/s390_flic.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c index bef4caf980..711c11454f 100644 --- a/hw/intc/s390_flic.c +++ b/hw/intc/s390_flic.c @@ -21,11 +21,14 @@ S390FLICState *s390_get_flic(void) { - S390FLICState *fs; + static S390FLICState *fs; - fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); if (!fs) { - fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, NULL)); + fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); + if (!fs) { + fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, + NULL)); + } } return fs; } |