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author | Frederic Weisbecker | 2009-10-18 01:09:09 +0200 |
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committer | Frederic Weisbecker | 2009-10-18 01:12:33 +0200 |
commit | 0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch) | |
tree | 94a8d419a470a4f9852ca397bb9bbe48db92ff5c /drivers/s390/cio/idset.c | |
parent | Merge branch 'linus' into tracing/hw-breakpoints (diff) | |
parent | perf tools: Move dereference after NULL test (diff) | |
download | kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.gz kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.xz kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.zip |
Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile
Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.
Diffstat (limited to 'drivers/s390/cio/idset.c')
-rw-r--r-- | drivers/s390/cio/idset.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c index cf8f24a4b5eb..4d10981c7cc1 100644 --- a/drivers/s390/cio/idset.c +++ b/drivers/s390/cio/idset.c @@ -78,7 +78,7 @@ static inline int idset_get_first(struct idset *set, int *ssid, int *id) struct idset *idset_sch_new(void) { - return idset_new(__MAX_SSID + 1, __MAX_SUBCHANNEL + 1); + return idset_new(max_ssid + 1, __MAX_SUBCHANNEL + 1); } void idset_sch_add(struct idset *set, struct subchannel_id schid) @@ -110,3 +110,23 @@ int idset_sch_get_first(struct idset *set, struct subchannel_id *schid) } return rc; } + +int idset_is_empty(struct idset *set) +{ + int bitnum; + + bitnum = find_first_bit(set->bitmap, set->num_ssid * set->num_id); + if (bitnum >= set->num_ssid * set->num_id) + return 1; + return 0; +} + +void idset_add_set(struct idset *to, struct idset *from) +{ + unsigned long i, len; + + len = min(__BITOPS_WORDS(to->num_ssid * to->num_id), + __BITOPS_WORDS(from->num_ssid * from->num_id)); + for (i = 0; i < len ; i++) + to->bitmap[i] |= from->bitmap[i]; +} |