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@@ -70,8 +70,17 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
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self->unknown_events = 0;
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map_groups__init(&self->kmaps);
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- if (mode == O_RDONLY && perf_session__open(self, force) < 0)
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- goto out_delete;
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+ if (mode == O_RDONLY) {
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+ if (perf_session__open(self, force) < 0)
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+ goto out_delete;
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+ } else if (mode == O_WRONLY) {
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+ /*
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+ * In O_RDONLY mode this will be performed when reading the
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+ * kernel MMAP event, in event__process_mmap().
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+ */
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+ if (perf_session__create_kernel_maps(self) < 0)
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+ goto out_delete;
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+ }
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self->sample_type = perf_header__sample_type(&self->header);
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out:
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