Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757965Ab2KVVxI (ORCPT ); Thu, 22 Nov 2012 16:53:08 -0500 Received: from mail.kernel.org ([198.145.19.201]:49620 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754954Ab2KVSkR (ORCPT ); Thu, 22 Nov 2012 13:40:17 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , alan@lxorguk.ukuu.org.uk, Alex Elder , Sage Weil Subject: [ 056/171] crush: clean up types, const-ness Date: Wed, 21 Nov 2012 16:40:02 -0800 Message-Id: <20121122004038.989002703@linuxfoundation.org> X-Mailer: git-send-email 1.8.0.197.g5a90748 In-Reply-To: <20121122004033.298367941@linuxfoundation.org> References: <20121122004033.298367941@linuxfoundation.org> User-Agent: quilt/0.60-2.1.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6792 Lines: 212 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sage Weil (cherry picked from commit 8b12d47b80c7a34dffdd98244d99316db490ec58) Move various types from int -> __u32 (or similar), and add const as appropriate. This reflects changes that have been present in the userland implementation for some time. Reviewed-by: Alex Elder Signed-off-by: Sage Weil Signed-off-by: Greg Kroah-Hartman --- include/linux/crush/crush.h | 2 +- include/linux/crush/mapper.h | 6 +++--- net/ceph/crush/crush.c | 8 ++++---- net/ceph/crush/mapper.c | 31 ++++++++++++++++--------------- 4 files changed, 24 insertions(+), 23 deletions(-) --- a/include/linux/crush/crush.h +++ b/include/linux/crush/crush.h @@ -168,7 +168,7 @@ struct crush_map { /* crush.c */ -extern int crush_get_bucket_item_weight(struct crush_bucket *b, int pos); +extern int crush_get_bucket_item_weight(const struct crush_bucket *b, int pos); extern void crush_calc_parents(struct crush_map *map); extern void crush_destroy_bucket_uniform(struct crush_bucket_uniform *b); extern void crush_destroy_bucket_list(struct crush_bucket_list *b); --- a/include/linux/crush/mapper.h +++ b/include/linux/crush/mapper.h @@ -10,11 +10,11 @@ #include "crush.h" -extern int crush_find_rule(struct crush_map *map, int pool, int type, int size); -extern int crush_do_rule(struct crush_map *map, +extern int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size); +extern int crush_do_rule(const struct crush_map *map, int ruleno, int x, int *result, int result_max, int forcefeed, /* -1 for none */ - __u32 *weights); + const __u32 *weights); #endif --- a/net/ceph/crush/crush.c +++ b/net/ceph/crush/crush.c @@ -26,9 +26,9 @@ const char *crush_bucket_alg_name(int al * @b: bucket pointer * @p: item index in bucket */ -int crush_get_bucket_item_weight(struct crush_bucket *b, int p) +int crush_get_bucket_item_weight(const struct crush_bucket *b, int p) { - if (p >= b->size) + if ((__u32)p >= b->size) return 0; switch (b->alg) { @@ -124,10 +124,9 @@ void crush_destroy_bucket(struct crush_b */ void crush_destroy(struct crush_map *map) { - int b; - /* buckets */ if (map->buckets) { + __s32 b; for (b = 0; b < map->max_buckets; b++) { if (map->buckets[b] == NULL) continue; @@ -138,6 +137,7 @@ void crush_destroy(struct crush_map *map /* rules */ if (map->rules) { + __u32 b; for (b = 0; b < map->max_rules; b++) kfree(map->rules[b]); kfree(map->rules); --- a/net/ceph/crush/mapper.c +++ b/net/ceph/crush/mapper.c @@ -32,9 +32,9 @@ * @type: storage ruleset type (user defined) * @size: output set size */ -int crush_find_rule(struct crush_map *map, int ruleset, int type, int size) +int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size) { - int i; + __u32 i; for (i = 0; i < map->max_rules; i++) { if (map->rules[i] && @@ -72,7 +72,7 @@ static int bucket_perm_choose(struct cru unsigned i, s; /* start a new permutation if @x has changed */ - if (bucket->perm_x != x || bucket->perm_n == 0) { + if (bucket->perm_x != (__u32)x || bucket->perm_n == 0) { dprintk("bucket %d new x=%d\n", bucket->id, x); bucket->perm_x = x; @@ -219,7 +219,7 @@ static int bucket_tree_choose(struct cru static int bucket_straw_choose(struct crush_bucket_straw *bucket, int x, int r) { - int i; + __u32 i; int high = 0; __u64 high_draw = 0; __u64 draw; @@ -262,7 +262,7 @@ static int crush_bucket_choose(struct cr * true if device is marked "out" (failed, fully offloaded) * of the cluster */ -static int is_out(struct crush_map *map, __u32 *weight, int item, int x) +static int is_out(const struct crush_map *map, const __u32 *weight, int item, int x) { if (weight[item] >= 0x10000) return 0; @@ -287,16 +287,16 @@ static int is_out(struct crush_map *map, * @recurse_to_leaf: true if we want one device under each item of given type * @out2: second output vector for leaf items (if @recurse_to_leaf) */ -static int crush_choose(struct crush_map *map, +static int crush_choose(const struct crush_map *map, struct crush_bucket *bucket, - __u32 *weight, + const __u32 *weight, int x, int numrep, int type, int *out, int outpos, int firstn, int recurse_to_leaf, int *out2) { int rep; - int ftotal, flocal; + unsigned int ftotal, flocal; int retry_descent, retry_bucket, skip_rep; struct crush_bucket *in = bucket; int r; @@ -304,7 +304,7 @@ static int crush_choose(struct crush_map int item = 0; int itemtype; int collide, reject; - const int orig_tries = 5; /* attempts before we fall back to search */ + const unsigned int orig_tries = 5; /* attempts before we fall back to search */ dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d\n", recurse_to_leaf ? "_LEAF" : "", bucket->id, x, outpos, numrep); @@ -325,7 +325,7 @@ static int crush_choose(struct crush_map r = rep; if (in->alg == CRUSH_BUCKET_UNIFORM) { /* be careful */ - if (firstn || numrep >= in->size) + if (firstn || (__u32)numrep >= in->size) /* r' = r + f_total */ r += ftotal; else if (in->size % numrep == 0) @@ -425,7 +425,7 @@ reject: /* else give up */ skip_rep = 1; dprintk(" reject %d collide %d " - "ftotal %d flocal %d\n", + "ftotal %u flocal %u\n", reject, collide, ftotal, flocal); } @@ -456,9 +456,9 @@ reject: * @result_max: maximum result size * @force: force initial replica choice; -1 for none */ -int crush_do_rule(struct crush_map *map, +int crush_do_rule(const struct crush_map *map, int ruleno, int x, int *result, int result_max, - int force, __u32 *weight) + int force, const __u32 *weight) { int result_len; int force_context[CRUSH_MAX_DEPTH]; @@ -473,7 +473,7 @@ int crush_do_rule(struct crush_map *map, int osize; int *tmp; struct crush_rule *rule; - int step; + __u32 step; int i, j; int numrep; int firstn; @@ -488,7 +488,8 @@ int crush_do_rule(struct crush_map *map, /* * determine hierarchical context of force, if any. note * that this may or may not correspond to the specific types - * referenced by the crush rule. + * referenced by the crush rule. it will also only affect + * the first descent (TAKE). */ if (force >= 0 && force < map->max_devices && -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/