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-rw-r--r--fs/ceph/mds_client.c54
-rw-r--r--include/linux/ceph/libceph.h57
-rw-r--r--net/ceph/mon_client.c52
-rw-r--r--net/ceph/osd_client.c97
4 files changed, 88 insertions, 172 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 85b8517f17a0..cff85af425d4 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -567,51 +567,23 @@ void ceph_mdsc_release_request(struct kref *kref)
kfree(req);
}
+DEFINE_RB_FUNCS(request, struct ceph_mds_request, r_tid, r_node)
+
/*
* lookup session, bump ref if found.
*
* called under mdsc->mutex.
*/
-static struct ceph_mds_request *__lookup_request(struct ceph_mds_client *mdsc,
- u64 tid)
+static struct ceph_mds_request *
+lookup_get_request(struct ceph_mds_client *mdsc, u64 tid)
{
struct ceph_mds_request *req;
- struct rb_node *n = mdsc->request_tree.rb_node;
-
- while (n) {
- req = rb_entry(n, struct ceph_mds_request, r_node);
- if (tid < req->r_tid)
- n = n->rb_left;
- else if (tid > req->r_tid)
- n = n->rb_right;
- else {
- ceph_mdsc_get_request(req);
- return req;
- }
- }
- return NULL;
-}
-static void __insert_request(struct ceph_mds_client *mdsc,
- struct ceph_mds_request *new)
-{
- struct rb_node **p = &mdsc->request_tree.rb_node;
- struct rb_node *parent = NULL;
- struct ceph_mds_request *req = NULL;
+ req = lookup_request(&mdsc->request_tree, tid);
+ if (req)
+ ceph_mdsc_get_request(req);
- while (*p) {
- parent = *p;
- req = rb_entry(parent, struct ceph_mds_request, r_node);
- if (new->r_tid < req->r_tid)
- p = &(*p)->rb_left;
- else if (new->r_tid > req->r_tid)
- p = &(*p)->rb_right;
- else
- BUG();
- }
-
- rb_link_node(&new->r_node, parent, p);
- rb_insert_color(&new->r_node, &mdsc->request_tree);
+ return req;
}
/*
@@ -630,7 +602,7 @@ static void __register_request(struct ceph_mds_client *mdsc,
req->r_num_caps);
dout("__register_request %p tid %lld\n", req, req->r_tid);
ceph_mdsc_get_request(req);
- __insert_request(mdsc, req);
+ insert_request(&mdsc->request_tree, req);
req->r_uid = current_fsuid();
req->r_gid = current_fsgid();
@@ -663,8 +635,7 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
}
}
- rb_erase(&req->r_node, &mdsc->request_tree);
- RB_CLEAR_NODE(&req->r_node);
+ erase_request(&mdsc->request_tree, req);
if (req->r_unsafe_dir && req->r_got_unsafe) {
struct ceph_inode_info *ci = ceph_inode(req->r_unsafe_dir);
@@ -1722,6 +1693,7 @@ ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode)
INIT_LIST_HEAD(&req->r_unsafe_target_item);
req->r_fmode = -1;
kref_init(&req->r_kref);
+ RB_CLEAR_NODE(&req->r_node);
INIT_LIST_HEAD(&req->r_wait);
init_completion(&req->r_completion);
init_completion(&req->r_safe_completion);
@@ -2414,7 +2386,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
/* get request, session */
tid = le64_to_cpu(msg->hdr.tid);
mutex_lock(&mdsc->mutex);
- req = __lookup_request(mdsc, tid);
+ req = lookup_get_request(mdsc, tid);
if (!req) {
dout("handle_reply on unknown tid %llu\n", tid);
mutex_unlock(&mdsc->mutex);
@@ -2604,7 +2576,7 @@ static void handle_forward(struct ceph_mds_client *mdsc,
fwd_seq = ceph_decode_32(&p);
mutex_lock(&mdsc->mutex);
- req = __lookup_request(mdsc, tid);
+ req = lookup_get_request(mdsc, tid);
if (!req) {
dout("forward tid %llu to mds%d - req dne\n", tid, next_mds);
goto out; /* dup reply? */
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index db92a8d4926e..690985daad1c 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -180,6 +180,63 @@ static inline int calc_pages_for(u64 off, u64 len)
(off >> PAGE_SHIFT);
}
+/*
+ * These are not meant to be generic - an integer key is assumed.
+ */
+#define DEFINE_RB_INSDEL_FUNCS(name, type, keyfld, nodefld) \
+static void insert_##name(struct rb_root *root, type *t) \
+{ \
+ struct rb_node **n = &root->rb_node; \
+ struct rb_node *parent = NULL; \
+ \
+ BUG_ON(!RB_EMPTY_NODE(&t->nodefld)); \
+ \
+ while (*n) { \
+ type *cur = rb_entry(*n, type, nodefld); \
+ \
+ parent = *n; \
+ if (t->keyfld < cur->keyfld) \
+ n = &(*n)->rb_left; \
+ else if (t->keyfld > cur->keyfld) \
+ n = &(*n)->rb_right; \
+ else \
+ BUG(); \
+ } \
+ \
+ rb_link_node(&t->nodefld, parent, n); \
+ rb_insert_color(&t->nodefld, root); \
+} \
+static void erase_##name(struct rb_root *root, type *t) \
+{ \
+ BUG_ON(RB_EMPTY_NODE(&t->nodefld)); \
+ rb_erase(&t->nodefld, root); \
+ RB_CLEAR_NODE(&t->nodefld); \
+}
+
+#define DEFINE_RB_LOOKUP_FUNC(name, type, keyfld, nodefld) \
+static type *lookup_##name(struct rb_root *root, \
+ typeof(((type *)0)->keyfld) key) \
+{ \
+ struct rb_node *n = root->rb_node; \
+ \
+ while (n) { \
+ type *cur = rb_entry(n, type, nodefld); \
+ \
+ if (key < cur->keyfld) \
+ n = n->rb_left; \
+ else if (key > cur->keyfld) \
+ n = n->rb_right; \
+ else \
+ return cur; \
+ } \
+ \
+ return NULL; \
+}
+
+#define DEFINE_RB_FUNCS(name, type, keyfld, nodefld) \
+DEFINE_RB_INSDEL_FUNCS(name, type, keyfld, nodefld) \
+DEFINE_RB_LOOKUP_FUNC(name, type, keyfld, nodefld)
+
extern struct kmem_cache *ceph_inode_cachep;
extern struct kmem_cache *ceph_cap_cachep;
extern struct kmem_cache *ceph_cap_flush_cachep;
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 3dfafdad92aa..a426a4b03e75 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -478,45 +478,7 @@ out:
/*
* generic requests (currently statfs, mon_get_version)
*/
-static struct ceph_mon_generic_request *__lookup_generic_req(
- struct ceph_mon_client *monc, u64 tid)
-{
- struct ceph_mon_generic_request *req;
- struct rb_node *n = monc->generic_request_tree.rb_node;
-
- while (n) {
- req = rb_entry(n, struct ceph_mon_generic_request, node);
- if (tid < req->tid)
- n = n->rb_left;
- else if (tid > req->tid)
- n = n->rb_right;
- else
- return req;
- }
- return NULL;
-}
-
-static void __insert_generic_request(struct ceph_mon_client *monc,
- struct ceph_mon_generic_request *new)
-{
- struct rb_node **p = &monc->generic_request_tree.rb_node;
- struct rb_node *parent = NULL;
- struct ceph_mon_generic_request *req = NULL;
-
- while (*p) {
- parent = *p;
- req = rb_entry(parent, struct ceph_mon_generic_request, node);
- if (new->tid < req->tid)
- p = &(*p)->rb_left;
- else if (new->tid > req->tid)
- p = &(*p)->rb_right;
- else
- BUG();
- }
-
- rb_link_node(&new->node, parent, p);
- rb_insert_color(&new->node, &monc->generic_request_tree);
-}
+DEFINE_RB_FUNCS(generic_request, struct ceph_mon_generic_request, tid, node)
static void release_generic_request(struct kref *kref)
{
@@ -551,7 +513,7 @@ static struct ceph_msg *get_generic_reply(struct ceph_connection *con,
struct ceph_msg *m;
mutex_lock(&monc->mutex);
- req = __lookup_generic_req(monc, tid);
+ req = lookup_generic_request(&monc->generic_request_tree, tid);
if (!req) {
dout("get_generic_reply %lld dne\n", tid);
*skip = 1;
@@ -578,14 +540,14 @@ static int __do_generic_request(struct ceph_mon_client *monc, u64 tid,
/* register request */
req->tid = tid != 0 ? tid : ++monc->last_tid;
req->request->hdr.tid = cpu_to_le64(req->tid);
- __insert_generic_request(monc, req);
+ insert_generic_request(&monc->generic_request_tree, req);
ceph_con_send(&monc->con, ceph_msg_get(req->request));
mutex_unlock(&monc->mutex);
err = wait_for_completion_interruptible(&req->completion);
mutex_lock(&monc->mutex);
- rb_erase(&req->node, &monc->generic_request_tree);
+ erase_generic_request(&monc->generic_request_tree, req);
if (!err)
err = req->result;
@@ -619,7 +581,7 @@ static void handle_statfs_reply(struct ceph_mon_client *monc,
dout("handle_statfs_reply %p tid %llu\n", msg, tid);
mutex_lock(&monc->mutex);
- req = __lookup_generic_req(monc, tid);
+ req = lookup_generic_request(&monc->generic_request_tree, tid);
if (req) {
*(struct ceph_statfs *)req->buf = reply->st;
req->result = 0;
@@ -651,6 +613,7 @@ int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf)
return -ENOMEM;
kref_init(&req->kref);
+ RB_CLEAR_NODE(&req->node);
req->buf = buf;
init_completion(&req->completion);
@@ -696,7 +659,7 @@ static void handle_get_version_reply(struct ceph_mon_client *monc,
goto bad;
mutex_lock(&monc->mutex);
- req = __lookup_generic_req(monc, handle);
+ req = lookup_generic_request(&monc->generic_request_tree, handle);
if (req) {
*(u64 *)req->buf = ceph_decode_64(&p);
req->result = 0;
@@ -732,6 +695,7 @@ int ceph_monc_do_get_version(struct ceph_mon_client *monc, const char *what,
return -ENOMEM;
kref_init(&req->kref);
+ RB_CLEAR_NODE(&req->node);
req->buf = newest;
init_completion(&req->completion);
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index c423e11d6857..8256051ed88f 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -875,45 +875,7 @@ EXPORT_SYMBOL(ceph_osdc_new_request);
/*
* We keep osd requests in an rbtree, sorted by ->r_tid.
*/
-static void __insert_request(struct ceph_osd_client *osdc,
- struct ceph_osd_request *new)
-{
- struct rb_node **p = &osdc->requests.rb_node;
- struct rb_node *parent = NULL;
- struct ceph_osd_request *req = NULL;
-
- while (*p) {
- parent = *p;
- req = rb_entry(parent, struct ceph_osd_request, r_node);
- if (new->r_tid < req->r_tid)
- p = &(*p)->rb_left;
- else if (new->r_tid > req->r_tid)
- p = &(*p)->rb_right;
- else
- BUG();
- }
-
- rb_link_node(&new->r_node, parent, p);
- rb_insert_color(&new->r_node, &osdc->requests);
-}
-
-static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc,
- u64 tid)
-{
- struct ceph_osd_request *req;
- struct rb_node *n = osdc->requests.rb_node;
-
- while (n) {
- req = rb_entry(n, struct ceph_osd_request, r_node);
- if (tid < req->r_tid)
- n = n->rb_left;
- else if (tid > req->r_tid)
- n = n->rb_right;
- else
- return req;
- }
- return NULL;
-}
+DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node)
static struct ceph_osd_request *
__lookup_request_ge(struct ceph_osd_client *osdc,
@@ -1101,6 +1063,8 @@ static void put_osd(struct ceph_osd *osd)
}
}
+DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node)
+
/*
* remove an osd from our map
*/
@@ -1111,8 +1075,7 @@ static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
WARN_ON(!list_empty(&osd->o_linger_requests));
list_del_init(&osd->o_osd_lru);
- rb_erase(&osd->o_node, &osdc->osds);
- RB_CLEAR_NODE(&osd->o_node);
+ erase_osd(&osdc->osds, osd);
}
static void remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
@@ -1188,45 +1151,6 @@ static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
return 0;
}
-static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new)
-{
- struct rb_node **p = &osdc->osds.rb_node;
- struct rb_node *parent = NULL;
- struct ceph_osd *osd = NULL;
-
- dout("__insert_osd %p osd%d\n", new, new->o_osd);
- while (*p) {
- parent = *p;
- osd = rb_entry(parent, struct ceph_osd, o_node);
- if (new->o_osd < osd->o_osd)
- p = &(*p)->rb_left;
- else if (new->o_osd > osd->o_osd)
- p = &(*p)->rb_right;
- else
- BUG();
- }
-
- rb_link_node(&new->o_node, parent, p);
- rb_insert_color(&new->o_node, &osdc->osds);
-}
-
-static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o)
-{
- struct ceph_osd *osd;
- struct rb_node *n = osdc->osds.rb_node;
-
- while (n) {
- osd = rb_entry(n, struct ceph_osd, o_node);
- if (o < osd->o_osd)
- n = n->rb_left;
- else if (o > osd->o_osd)
- n = n->rb_right;
- else
- return osd;
- }
- return NULL;
-}
-
static void __schedule_osd_timeout(struct ceph_osd_client *osdc)
{
schedule_delayed_work(&osdc->timeout_work,
@@ -1248,7 +1172,7 @@ static void __register_request(struct ceph_osd_client *osdc,
req->r_tid = ++osdc->last_tid;
req->r_request->hdr.tid = cpu_to_le64(req->r_tid);
dout("__register_request %p tid %lld\n", req, req->r_tid);
- __insert_request(osdc, req);
+ insert_request(&osdc->requests, req);
ceph_osdc_get_request(req);
osdc->num_requests++;
if (osdc->num_requests == 1) {
@@ -1270,8 +1194,7 @@ static void __unregister_request(struct ceph_osd_client *osdc,
}
dout("__unregister_request %p tid %lld\n", req, req->r_tid);
- rb_erase(&req->r_node, &osdc->requests);
- RB_CLEAR_NODE(&req->r_node);
+ erase_request(&osdc->requests, req);
osdc->num_requests--;
if (req->r_osd) {
@@ -1482,7 +1405,7 @@ static int __map_request(struct ceph_osd_client *osdc,
req->r_osd = NULL;
}
- req->r_osd = __lookup_osd(osdc, o);
+ req->r_osd = lookup_osd(&osdc->osds, o);
if (!req->r_osd && o >= 0) {
err = -ENOMEM;
req->r_osd = create_osd(osdc, o);
@@ -1492,7 +1415,7 @@ static int __map_request(struct ceph_osd_client *osdc,
}
dout("map_request osd %p is osd%d\n", req->r_osd, o);
- __insert_osd(osdc, req->r_osd);
+ insert_osd(&osdc->osds, req->r_osd);
ceph_con_open(&req->r_osd->o_con,
CEPH_ENTITY_TYPE_OSD, o,
@@ -1822,7 +1745,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg)
/* lookup */
down_read(&osdc->map_sem);
mutex_lock(&osdc->request_mutex);
- req = __lookup_request(osdc, tid);
+ req = lookup_request(&osdc->requests, tid);
if (req == NULL) {
dout("handle_reply tid %llu dne\n", tid);
goto bad_mutex;
@@ -2880,7 +2803,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
tid = le64_to_cpu(hdr->tid);
mutex_lock(&osdc->request_mutex);
- req = __lookup_request(osdc, tid);
+ req = lookup_request(&osdc->requests, tid);
if (!req) {
dout("%s osd%d tid %llu unknown, skipping\n", __func__,
osd->o_osd, tid);
generated by cgit (git 2.34.1) at 2024-06-15 15:23:32 +0000