b3b33b0e43
Pass the size of the weight vector into crush_do_rule() to ensure that we don't access values past the end. This can happen if the caller misbehaves and passes a weight vector that is smaller than max_devices. Currently the monitor tries to prevent that from happening, but this will gracefully tolerate previous bad osdmaps that got into this state. It's also a bit more defensive. Reflects ceph.git commit 5922e2c2b8335b5e46c9504349c3a55b7434c01a. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
20 lines
441 B
C
20 lines
441 B
C
#ifndef CEPH_CRUSH_MAPPER_H
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#define CEPH_CRUSH_MAPPER_H
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/*
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* CRUSH functions for find rules and then mapping an input to an
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* output set.
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*
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* LGPL2
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*/
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#include <linux/crush/crush.h>
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extern int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size);
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extern int crush_do_rule(const struct crush_map *map,
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int ruleno,
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int x, int *result, int result_max,
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const __u32 *weights, int weight_max);
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#endif
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