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Commit 5d6a6a75 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 

Pull Ceph fixes from Sage Weil:
 "We have a few wire protocol compatibility fixes, ports of a few recent
  CRUSH mapping changes, and a couple error path fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: MOSDOpReply v7 encoding
  libceph: advertise support for TUNABLES5
  crush: decode and initialize chooseleaf_stable
  crush: add chooseleaf_stable tunable
  crush: ensure take bucket value is valid
  crush: ensure bucket id is valid before indexing buckets array
  ceph: fix snap context leak in error path
  ceph: checking for IS_ERR instead of NULL
parents 9b108828 b0b31a8f

fs/ceph/file.c

+3 −3
Original line number Diff line number Diff line
@@ -698,8 +698,8 @@ static void ceph_aio_retry_work(struct work_struct *work) 


	req = ceph_osdc_alloc_request(orig_req->r_osdc, snapc, 2,

			false, GFP_NOFS);

	if (IS_ERR(req)) {

		ret = PTR_ERR(req);

	if (!req) {

		ret = -ENOMEM;

		req = orig_req;

		goto out;

	}
@@ -716,7 +716,6 @@ static void ceph_aio_retry_work(struct work_struct *work) 
	ceph_osdc_build_request(req, req->r_ops[0].extent.offset,

				snapc, CEPH_NOSNAP, &aio_req->mtime);



	ceph_put_snap_context(snapc);

	ceph_osdc_put_request(orig_req);



	req->r_callback = ceph_aio_complete_req;
@@ -731,6 +730,7 @@ static void ceph_aio_retry_work(struct work_struct *work) 
		ceph_aio_complete_req(req, NULL);

	}



	ceph_put_snap_context(snapc);

	kfree(aio_work);

}

include/linux/ceph/ceph_features.h

+15 −1
Original line number Diff line number Diff line
@@ -63,6 +63,18 @@ 
#define CEPH_FEATURE_OSD_MIN_SIZE_RECOVERY (1ULL<<49)

// duplicated since it was introduced at the same time as MIN_SIZE_RECOVERY

#define CEPH_FEATURE_OSD_PROXY_FEATURES (1ULL<<49)  /* overlap w/ above */

#define CEPH_FEATURE_MON_METADATA (1ULL<<50)

#define CEPH_FEATURE_OSD_BITWISE_HOBJ_SORT (1ULL<<51) /* can sort objs bitwise */

#define CEPH_FEATURE_OSD_PROXY_WRITE_FEATURES (1ULL<<52)

#define CEPH_FEATURE_ERASURE_CODE_PLUGINS_V3 (1ULL<<53)

#define CEPH_FEATURE_OSD_HITSET_GMT (1ULL<<54)

#define CEPH_FEATURE_HAMMER_0_94_4 (1ULL<<55)

#define CEPH_FEATURE_NEW_OSDOP_ENCODING   (1ULL<<56) /* New, v7 encoding */

#define CEPH_FEATURE_MON_STATEFUL_SUB (1ULL<<57) /* stateful mon subscription */

#define CEPH_FEATURE_MON_ROUTE_OSDMAP (1ULL<<57) /* peon sends osdmaps */

#define CEPH_FEATURE_CRUSH_TUNABLES5	(1ULL<<58) /* chooseleaf stable mode */

// duplicated since it was introduced at the same time as CEPH_FEATURE_CRUSH_TUNABLES5

#define CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING   (1ULL<<58) /* New, v7 encoding */



/*

 * The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature
@@ -108,7 +120,9 @@ static inline u64 ceph_sanitize_features(u64 features) 
	 CEPH_FEATURE_CRUSH_TUNABLES3 |		\

	 CEPH_FEATURE_OSD_PRIMARY_AFFINITY |	\

	 CEPH_FEATURE_MSGR_KEEPALIVE2 |		\

	 CEPH_FEATURE_CRUSH_V4)

	 CEPH_FEATURE_CRUSH_V4 |		\

	 CEPH_FEATURE_CRUSH_TUNABLES5 |		\

	 CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING)



#define CEPH_FEATURES_REQUIRED_DEFAULT   \

	(CEPH_FEATURE_NOSRCADDR |	 \

include/linux/crush/crush.h

+7 −1
Original line number Diff line number Diff line
@@ -59,7 +59,8 @@ enum { 
	CRUSH_RULE_SET_CHOOSELEAF_TRIES = 9, /* override chooseleaf_descend_once */

	CRUSH_RULE_SET_CHOOSE_LOCAL_TRIES = 10,

	CRUSH_RULE_SET_CHOOSE_LOCAL_FALLBACK_TRIES = 11,

	CRUSH_RULE_SET_CHOOSELEAF_VARY_R = 12

	CRUSH_RULE_SET_CHOOSELEAF_VARY_R = 12,

	CRUSH_RULE_SET_CHOOSELEAF_STABLE = 13

};



/*
@@ -205,6 +206,11 @@ struct crush_map { 
	 * mappings line up a bit better with previous mappings. */

	__u8 chooseleaf_vary_r;



	/* if true, it makes chooseleaf firstn to return stable results (if

	 * no local retry) so that data migrations would be optimal when some

	 * device fails. */

	__u8 chooseleaf_stable;



#ifndef __KERNEL__

	/*

	 * version 0 (original) of straw_calc has various flaws.  version 1

net/ceph/crush/mapper.c

+26 −7
Original line number Diff line number Diff line
@@ -403,6 +403,7 @@ static int is_out(const struct crush_map *map, 
 * @local_retries: localized retries

 * @local_fallback_retries: localized fallback retries

 * @recurse_to_leaf: true if we want one device under each item of given type (chooseleaf instead of choose)

 * @stable: stable mode starts rep=0 in the recursive call for all replicas

 * @vary_r: pass r to recursive calls

 * @out2: second output vector for leaf items (if @recurse_to_leaf)

 * @parent_r: r value passed from the parent
@@ -419,6 +420,7 @@ static int crush_choose_firstn(const struct crush_map *map, 
			       unsigned int local_fallback_retries,

			       int recurse_to_leaf,

			       unsigned int vary_r,

			       unsigned int stable,

			       int *out2,

			       int parent_r)

{
@@ -433,13 +435,13 @@ static int crush_choose_firstn(const struct crush_map *map, 
	int collide, reject;

	int count = out_size;



	dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d tries %d recurse_tries %d local_retries %d local_fallback_retries %d parent_r %d\n",

	dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d tries %d recurse_tries %d local_retries %d local_fallback_retries %d parent_r %d stable %d\n",

		recurse_to_leaf ? "_LEAF" : "",

		bucket->id, x, outpos, numrep,

		tries, recurse_tries, local_retries, local_fallback_retries,

		parent_r);

		parent_r, stable);



	for (rep = outpos; rep < numrep && count > 0 ; rep++) {

	for (rep = stable ? 0 : outpos; rep < numrep && count > 0 ; rep++) {

		/* keep trying until we get a non-out, non-colliding item */

		ftotal = 0;

		skip_rep = 0;
@@ -512,13 +514,14 @@ static int crush_choose_firstn(const struct crush_map *map, 
						if (crush_choose_firstn(map,

							 map->buckets[-1-item],

							 weight, weight_max,

							 x, outpos+1, 0,

							 x, stable ? 1 : outpos+1, 0,

							 out2, outpos, count,

							 recurse_tries, 0,

							 local_retries,

							 local_fallback_retries,

							 0,

							 vary_r,

							 stable,

							 NULL,

							 sub_r) <= outpos)

							/* didn't get leaf */
@@ -816,6 +819,7 @@ int crush_do_rule(const struct crush_map *map, 
	int choose_local_fallback_retries = map->choose_local_fallback_tries;



	int vary_r = map->chooseleaf_vary_r;

	int stable = map->chooseleaf_stable;



	if ((__u32)ruleno >= map->max_rules) {

		dprintk(" bad ruleno %d\n", ruleno);
@@ -835,7 +839,8 @@ int crush_do_rule(const struct crush_map *map, 
		case CRUSH_RULE_TAKE:

			if ((curstep->arg1 >= 0 &&

			     curstep->arg1 < map->max_devices) ||

			    (-1-curstep->arg1 < map->max_buckets &&

			    (-1-curstep->arg1 >= 0 &&

			     -1-curstep->arg1 < map->max_buckets &&

			     map->buckets[-1-curstep->arg1])) {

				w[0] = curstep->arg1;

				wsize = 1;
@@ -869,6 +874,11 @@ int crush_do_rule(const struct crush_map *map, 
				vary_r = curstep->arg1;

			break;



		case CRUSH_RULE_SET_CHOOSELEAF_STABLE:

			if (curstep->arg1 >= 0)

				stable = curstep->arg1;

			break;



		case CRUSH_RULE_CHOOSELEAF_FIRSTN:

		case CRUSH_RULE_CHOOSE_FIRSTN:

			firstn = 1;
@@ -888,6 +898,7 @@ int crush_do_rule(const struct crush_map *map, 
			osize = 0;



			for (i = 0; i < wsize; i++) {

				int bno;

				/*

				 * see CRUSH_N, CRUSH_N_MINUS macros.

				 * basically, numrep <= 0 means relative to
@@ -900,6 +911,13 @@ int crush_do_rule(const struct crush_map *map, 
						continue;

				}

				j = 0;

				/* make sure bucket id is valid */

				bno = -1 - w[i];

				if (bno < 0 || bno >= map->max_buckets) {

					/* w[i] is probably CRUSH_ITEM_NONE */

					dprintk("  bad w[i] %d\n", w[i]);

					continue;

				}

				if (firstn) {

					int recurse_tries;

					if (choose_leaf_tries)
@@ -911,7 +929,7 @@ int crush_do_rule(const struct crush_map *map, 
						recurse_tries = choose_tries;

					osize += crush_choose_firstn(

						map,

						map->buckets[-1-w[i]],

						map->buckets[bno],

						weight, weight_max,

						x, numrep,

						curstep->arg2,
@@ -923,6 +941,7 @@ int crush_do_rule(const struct crush_map *map, 
						choose_local_fallback_retries,

						recurse_to_leaf,

						vary_r,

						stable,

						c+osize,

						0);

				} else {
@@ -930,7 +949,7 @@ int crush_do_rule(const struct crush_map *map, 
						    numrep : (result_max-osize));

					crush_choose_indep(

						map,

						map->buckets[-1-w[i]],

						map->buckets[bno],

						weight, weight_max,

						x, out_size, numrep,

						curstep->arg2,

net/ceph/osd_client.c

+10 −0
Original line number Diff line number Diff line
@@ -1770,6 +1770,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg) 
	u32 osdmap_epoch;

	int already_completed;

	u32 bytes;

	u8 decode_redir;

	unsigned int i;



	tid = le64_to_cpu(msg->hdr.tid);
@@ -1841,6 +1842,15 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg) 
		p += 8 + 4; /* skip replay_version */

		p += 8; /* skip user_version */



		if (le16_to_cpu(msg->hdr.version) >= 7)

			ceph_decode_8_safe(&p, end, decode_redir, bad_put);

		else

			decode_redir = 1;

	} else {

		decode_redir = 0;

	}



	if (decode_redir) {

		err = ceph_redirect_decode(&p, end, &redir);

		if (err)

			goto bad_put;