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events: convert to idr_alloc()

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Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tejun Heo 2013-02-27 17:04:55 -08:00 committed by Linus Torvalds
parent d228d9ec2c
commit 0e9c3be20d
1 changed files with 3 additions and 7 deletions
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10
kernel/events/core.c
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@ -5965,13 +5965,9 @@ int perf_pmu_register(struct pmu *pmu, char *name, int type)
pmu->name = name; pmu->name = name;
if (type < 0) { if (type < 0) {
int err = idr_pre_get(&pmu_idr, GFP_KERNEL); type = idr_alloc(&pmu_idr, pmu, PERF_TYPE_MAX, 0, GFP_KERNEL);
if (!err) if (type < 0) {
goto free_pdc; ret = type;
err = idr_get_new_above(&pmu_idr, pmu, PERF_TYPE_MAX, &type);
if (err) {
ret = err;
goto free_pdc; goto free_pdc;
} }
} }