diff options
Diffstat (limited to 'net/ceph')
-rw-r--r-- | net/ceph/auth_x.c | 76 | ||||
-rw-r--r-- | net/ceph/auth_x.h | 1 | ||||
-rw-r--r-- | net/ceph/buffer.c | 4 | ||||
-rw-r--r-- | net/ceph/ceph_common.c | 74 | ||||
-rw-r--r-- | net/ceph/ceph_strings.c | 14 | ||||
-rw-r--r-- | net/ceph/crush/crush.c | 14 | ||||
-rw-r--r-- | net/ceph/crush/crush_ln_table.h | 166 | ||||
-rw-r--r-- | net/ceph/crush/mapper.c | 118 | ||||
-rw-r--r-- | net/ceph/debugfs.c | 26 | ||||
-rw-r--r-- | net/ceph/messenger.c | 80 | ||||
-rw-r--r-- | net/ceph/mon_client.c | 139 | ||||
-rw-r--r-- | net/ceph/osd_client.c | 182 | ||||
-rw-r--r-- | net/ceph/osdmap.c | 25 | ||||
-rw-r--r-- | net/ceph/pagevec.c | 6 |
14 files changed, 671 insertions, 254 deletions
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c index 7e38b729696a..ba6eb17226da 100644 --- a/net/ceph/auth_x.c +++ b/net/ceph/auth_x.c @@ -8,6 +8,7 @@ #include <linux/ceph/decode.h> #include <linux/ceph/auth.h> +#include <linux/ceph/messenger.h> #include "crypto.h" #include "auth_x.h" @@ -293,6 +294,11 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac, dout("build_authorizer for %s %p\n", ceph_entity_type_name(th->service), au); + ceph_crypto_key_destroy(&au->session_key); + ret = ceph_crypto_key_clone(&au->session_key, &th->session_key); + if (ret) + return ret; + maxlen = sizeof(*msg_a) + sizeof(msg_b) + ceph_x_encrypt_buflen(ticket_blob_len); dout(" need len %d\n", maxlen); @@ -302,8 +308,10 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac, } if (!au->buf) { au->buf = ceph_buffer_new(maxlen, GFP_NOFS); - if (!au->buf) + if (!au->buf) { + ceph_crypto_key_destroy(&au->session_key); return -ENOMEM; + } } au->service = th->service; au->secret_id = th->secret_id; @@ -329,7 +337,7 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac, get_random_bytes(&au->nonce, sizeof(au->nonce)); msg_b.struct_v = 1; msg_b.nonce = cpu_to_le64(au->nonce); - ret = ceph_x_encrypt(&th->session_key, &msg_b, sizeof(msg_b), + ret = ceph_x_encrypt(&au->session_key, &msg_b, sizeof(msg_b), p, end - p); if (ret < 0) goto out_buf; @@ -560,6 +568,8 @@ static int ceph_x_create_authorizer( auth->authorizer_buf_len = au->buf->vec.iov_len; auth->authorizer_reply_buf = au->reply_buf; auth->authorizer_reply_buf_len = sizeof (au->reply_buf); + auth->sign_message = ac->ops->sign_message; + auth->check_message_signature = ac->ops->check_message_signature; return 0; } @@ -588,17 +598,13 @@ static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac, struct ceph_authorizer *a, size_t len) { struct ceph_x_authorizer *au = (void *)a; - struct ceph_x_ticket_handler *th; int ret = 0; struct ceph_x_authorize_reply reply; void *preply = &reply; void *p = au->reply_buf; void *end = p + sizeof(au->reply_buf); - th = get_ticket_handler(ac, au->service); - if (IS_ERR(th)) - return PTR_ERR(th); - ret = ceph_x_decrypt(&th->session_key, &p, end, &preply, sizeof(reply)); + ret = ceph_x_decrypt(&au->session_key, &p, end, &preply, sizeof(reply)); if (ret < 0) return ret; if (ret != sizeof(reply)) @@ -618,6 +624,7 @@ static void ceph_x_destroy_authorizer(struct ceph_auth_client *ac, { struct ceph_x_authorizer *au = (void *)a; + ceph_crypto_key_destroy(&au->session_key); ceph_buffer_put(au->buf); kfree(au); } @@ -663,6 +670,59 @@ static void ceph_x_invalidate_authorizer(struct ceph_auth_client *ac, memset(&th->validity, 0, sizeof(th->validity)); } +static int calcu_signature(struct ceph_x_authorizer *au, + struct ceph_msg *msg, __le64 *sig) +{ + int ret; + char tmp_enc[40]; + __le32 tmp[5] = { + cpu_to_le32(16), msg->hdr.crc, msg->footer.front_crc, + msg->footer.middle_crc, msg->footer.data_crc, + }; + ret = ceph_x_encrypt(&au->session_key, &tmp, sizeof(tmp), + tmp_enc, sizeof(tmp_enc)); + if (ret < 0) + return ret; + *sig = *(__le64*)(tmp_enc + 4); + return 0; +} + +static int ceph_x_sign_message(struct ceph_auth_handshake *auth, + struct ceph_msg *msg) +{ + int ret; + if (!auth->authorizer) + return 0; + ret = calcu_signature((struct ceph_x_authorizer *)auth->authorizer, + msg, &msg->footer.sig); + if (ret < 0) + return ret; + msg->footer.flags |= CEPH_MSG_FOOTER_SIGNED; + return 0; +} + +static int ceph_x_check_message_signature(struct ceph_auth_handshake *auth, + struct ceph_msg *msg) +{ + __le64 sig_check; + int ret; + + if (!auth->authorizer) + return 0; + ret = calcu_signature((struct ceph_x_authorizer *)auth->authorizer, + msg, &sig_check); + if (ret < 0) + return ret; + if (sig_check == msg->footer.sig) + return 0; + if (msg->footer.flags & CEPH_MSG_FOOTER_SIGNED) + dout("ceph_x_check_message_signature %p has signature %llx " + "expect %llx\n", msg, msg->footer.sig, sig_check); + else + dout("ceph_x_check_message_signature %p sender did not set " + "CEPH_MSG_FOOTER_SIGNED\n", msg); + return -EBADMSG; +} static const struct ceph_auth_client_ops ceph_x_ops = { .name = "x", @@ -677,6 +737,8 @@ static const struct ceph_auth_client_ops ceph_x_ops = { .invalidate_authorizer = ceph_x_invalidate_authorizer, .reset = ceph_x_reset, .destroy = ceph_x_destroy, + .sign_message = ceph_x_sign_message, + .check_message_signature = ceph_x_check_message_signature, }; diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h index 65ee72082d99..e8b7c6917d47 100644 --- a/net/ceph/auth_x.h +++ b/net/ceph/auth_x.h @@ -26,6 +26,7 @@ struct ceph_x_ticket_handler { struct ceph_x_authorizer { + struct ceph_crypto_key session_key; struct ceph_buffer *buf; unsigned int service; u64 nonce; diff --git a/net/ceph/buffer.c b/net/ceph/buffer.c index 621b5f65407f..add5f921a0ff 100644 --- a/net/ceph/buffer.c +++ b/net/ceph/buffer.c @@ -6,7 +6,7 @@ #include <linux/ceph/buffer.h> #include <linux/ceph/decode.h> -#include <linux/ceph/libceph.h> /* for ceph_kv{malloc,free} */ +#include <linux/ceph/libceph.h> /* for ceph_kvmalloc */ struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp) { @@ -35,7 +35,7 @@ void ceph_buffer_release(struct kref *kref) struct ceph_buffer *b = container_of(kref, struct ceph_buffer, kref); dout("buffer_release %p\n", b); - ceph_kvfree(b->vec.iov_base); + kvfree(b->vec.iov_base); kfree(b); } EXPORT_SYMBOL(ceph_buffer_release); diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 58fbfe134f93..79e8f71aef5b 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -184,14 +184,6 @@ void *ceph_kvmalloc(size_t size, gfp_t flags) return __vmalloc(size, flags | __GFP_HIGHMEM, PAGE_KERNEL); } -void ceph_kvfree(const void *ptr) -{ - if (is_vmalloc_addr(ptr)) - vfree(ptr); - else - kfree(ptr); -} - static int parse_fsid(const char *str, struct ceph_fsid *fsid) { @@ -245,6 +237,10 @@ enum { Opt_noshare, Opt_crc, Opt_nocrc, + Opt_cephx_require_signatures, + Opt_nocephx_require_signatures, + Opt_tcp_nodelay, + Opt_notcp_nodelay, }; static match_table_t opt_tokens = { @@ -263,6 +259,10 @@ static match_table_t opt_tokens = { {Opt_noshare, "noshare"}, {Opt_crc, "crc"}, {Opt_nocrc, "nocrc"}, + {Opt_cephx_require_signatures, "cephx_require_signatures"}, + {Opt_nocephx_require_signatures, "nocephx_require_signatures"}, + {Opt_tcp_nodelay, "tcp_nodelay"}, + {Opt_notcp_nodelay, "notcp_nodelay"}, {-1, NULL} }; @@ -462,6 +462,20 @@ ceph_parse_options(char *options, const char *dev_name, opt->flags |= CEPH_OPT_NOCRC; break; + case Opt_cephx_require_signatures: + opt->flags &= ~CEPH_OPT_NOMSGAUTH; + break; + case Opt_nocephx_require_signatures: + opt->flags |= CEPH_OPT_NOMSGAUTH; + break; + + case Opt_tcp_nodelay: + opt->flags |= CEPH_OPT_TCP_NODELAY; + break; + case Opt_notcp_nodelay: + opt->flags &= ~CEPH_OPT_TCP_NODELAY; + break; + default: BUG_ON(token); } @@ -476,6 +490,43 @@ out: } EXPORT_SYMBOL(ceph_parse_options); +int ceph_print_client_options(struct seq_file *m, struct ceph_client *client) +{ + struct ceph_options *opt = client->options; + size_t pos = m->count; + + if (opt->name) + seq_printf(m, "name=%s,", opt->name); + if (opt->key) + seq_puts(m, "secret=<hidden>,"); + + if (opt->flags & CEPH_OPT_FSID) + seq_printf(m, "fsid=%pU,", &opt->fsid); + if (opt->flags & CEPH_OPT_NOSHARE) + seq_puts(m, "noshare,"); + if (opt->flags & CEPH_OPT_NOCRC) + seq_puts(m, "nocrc,"); + if (opt->flags & CEPH_OPT_NOMSGAUTH) + seq_puts(m, "nocephx_require_signatures,"); + if ((opt->flags & CEPH_OPT_TCP_NODELAY) == 0) + seq_puts(m, "notcp_nodelay,"); + + if (opt->mount_timeout != CEPH_MOUNT_TIMEOUT_DEFAULT) + seq_printf(m, "mount_timeout=%d,", opt->mount_timeout); + if (opt->osd_idle_ttl != CEPH_OSD_IDLE_TTL_DEFAULT) + seq_printf(m, "osd_idle_ttl=%d,", opt->osd_idle_ttl); + if (opt->osd_keepalive_timeout != CEPH_OSD_KEEPALIVE_DEFAULT) + seq_printf(m, "osdkeepalivetimeout=%d,", + opt->osd_keepalive_timeout); + + /* drop redundant comma */ + if (m->count != pos) + m->count--; + + return 0; +} +EXPORT_SYMBOL(ceph_print_client_options); + u64 ceph_client_id(struct ceph_client *client) { return client->monc.auth->global_id; @@ -504,6 +555,9 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private, init_waitqueue_head(&client->auth_wq); client->auth_err = 0; + if (!ceph_test_opt(client, NOMSGAUTH)) + required_features |= CEPH_FEATURE_MSG_AUTH; + client->extra_mon_dispatch = NULL; client->supported_features = CEPH_FEATURES_SUPPORTED_DEFAULT | supported_features; @@ -513,10 +567,12 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private, /* msgr */ if (ceph_test_opt(client, MYIP)) myaddr = &client->options->my_addr; + ceph_messenger_init(&client->msgr, myaddr, client->supported_features, client->required_features, - ceph_test_opt(client, NOCRC)); + ceph_test_opt(client, NOCRC), + ceph_test_opt(client, TCP_NODELAY)); /* subsystems */ err = ceph_monc_init(&client->monc, client); diff --git a/net/ceph/ceph_strings.c b/net/ceph/ceph_strings.c index 30560202f57b..139a9cb19b0c 100644 --- a/net/ceph/ceph_strings.c +++ b/net/ceph/ceph_strings.c @@ -42,17 +42,3 @@ const char *ceph_osd_state_name(int s) return "???"; } } - -const char *ceph_pool_op_name(int op) -{ - switch (op) { - case POOL_OP_CREATE: return "create"; - case POOL_OP_DELETE: return "delete"; - case POOL_OP_AUID_CHANGE: return "auid change"; - case POOL_OP_CREATE_SNAP: return "create snap"; - case POOL_OP_DELETE_SNAP: return "delete snap"; - case POOL_OP_CREATE_UNMANAGED_SNAP: return "create unmanaged snap"; - case POOL_OP_DELETE_UNMANAGED_SNAP: return "delete unmanaged snap"; - } - return "???"; -} diff --git a/net/ceph/crush/crush.c b/net/ceph/crush/crush.c index 16bc199d9a62..9d84ce4ea0df 100644 --- a/net/ceph/crush/crush.c +++ b/net/ceph/crush/crush.c @@ -17,6 +17,7 @@ const char *crush_bucket_alg_name(int alg) case CRUSH_BUCKET_LIST: return "list"; case CRUSH_BUCKET_TREE: return "tree"; case CRUSH_BUCKET_STRAW: return "straw"; + case CRUSH_BUCKET_STRAW2: return "straw2"; default: return "unknown"; } } @@ -40,6 +41,8 @@ int crush_get_bucket_item_weight(const struct crush_bucket *b, int p) return ((struct crush_bucket_tree *)b)->node_weights[crush_calc_tree_node(p)]; case CRUSH_BUCKET_STRAW: return ((struct crush_bucket_straw *)b)->item_weights[p]; + case CRUSH_BUCKET_STRAW2: + return ((struct crush_bucket_straw2 *)b)->item_weights[p]; } return 0; } @@ -77,6 +80,14 @@ void crush_destroy_bucket_straw(struct crush_bucket_straw *b) kfree(b); } +void crush_destroy_bucket_straw2(struct crush_bucket_straw2 *b) +{ + kfree(b->item_weights); + kfree(b->h.perm); + kfree(b->h.items); + kfree(b); +} + void crush_destroy_bucket(struct crush_bucket *b) { switch (b->alg) { @@ -92,6 +103,9 @@ void crush_destroy_bucket(struct crush_bucket *b) case CRUSH_BUCKET_STRAW: crush_destroy_bucket_straw((struct crush_bucket_straw *)b); break; + case CRUSH_BUCKET_STRAW2: + crush_destroy_bucket_straw2((struct crush_bucket_straw2 *)b); + break; } } diff --git a/net/ceph/crush/crush_ln_table.h b/net/ceph/crush/crush_ln_table.h new file mode 100644 index 000000000000..6192c7fc958c --- /dev/null +++ b/net/ceph/crush/crush_ln_table.h @@ -0,0 +1,166 @@ +/* + * Ceph - scalable distributed file system + * + * Copyright (C) 2015 Intel Corporation All Rights Reserved + * + * This is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software + * Foundation. See file COPYING. + * + */ + +#if defined(__linux__) +#include <linux/types.h> +#elif defined(__FreeBSD__) +#include <sys/types.h> +#endif + +#ifndef CEPH_CRUSH_LN_H +#define CEPH_CRUSH_LN_H + + +// RH_LH_tbl[2*k] = 2^48/(1.0+k/128.0) +// RH_LH_tbl[2*k+1] = 2^48*log2(1.0+k/128.0) + +static int64_t __RH_LH_tbl[128*2+2] = { + 0x0001000000000000ll, 0x0000000000000000ll, 0x0000fe03f80fe040ll, 0x000002dfca16dde1ll, + 0x0000fc0fc0fc0fc1ll, 0x000005b9e5a170b4ll, 0x0000fa232cf25214ll, 0x0000088e68ea899all, + 0x0000f83e0f83e0f9ll, 0x00000b5d69bac77ell, 0x0000f6603d980f67ll, 0x00000e26fd5c8555ll, + 0x0000f4898d5f85bcll, 0x000010eb389fa29fll, 0x0000f2b9d6480f2cll, 0x000013aa2fdd27f1ll, + 0x0000f0f0f0f0f0f1ll, 0x00001663f6fac913ll, 0x0000ef2eb71fc435ll, 0x00001918a16e4633ll, + 0x0000ed7303b5cc0fll, 0x00001bc84240adabll, 0x0000ebbdb2a5c162ll, 0x00001e72ec117fa5ll, + 0x0000ea0ea0ea0ea1ll, 0x00002118b119b4f3ll, 0x0000e865ac7b7604ll, 0x000023b9a32eaa56ll, + 0x0000e6c2b4481cd9ll, 0x00002655d3c4f15cll, 0x0000e525982af70dll, 0x000028ed53f307eell, + 0x0000e38e38e38e39ll, 0x00002b803473f7adll, 0x0000e1fc780e1fc8ll, 0x00002e0e85a9de04ll, + 0x0000e070381c0e08ll, 0x0000309857a05e07ll, 0x0000dee95c4ca038ll, 0x0000331dba0efce1ll, + 0x0000dd67c8a60dd7ll, 0x0000359ebc5b69d9ll, 0x0000dbeb61eed19dll, 0x0000381b6d9bb29bll, + 0x0000da740da740dbll, 0x00003a93dc9864b2ll, 0x0000d901b2036407ll, 0x00003d0817ce9cd4ll, + 0x0000d79435e50d7all, 0x00003f782d7204d0ll, 0x0000d62b80d62b81ll, 0x000041e42b6ec0c0ll, + 0x0000d4c77b03531ell, 0x0000444c1f6b4c2dll, 0x0000d3680d3680d4ll, 0x000046b016ca47c1ll, + 0x0000d20d20d20d21ll, 0x000049101eac381cll, 0x0000d0b69fcbd259ll, 0x00004b6c43f1366all, + 0x0000cf6474a8819fll, 0x00004dc4933a9337ll, 0x0000ce168a772509ll, 0x0000501918ec6c11ll, + 0x0000cccccccccccdll, 0x00005269e12f346ell, 0x0000cb8727c065c4ll, 0x000054b6f7f1325all, + 0x0000ca4587e6b750ll, 0x0000570068e7ef5all, 0x0000c907da4e8712ll, 0x000059463f919deell, + 0x0000c7ce0c7ce0c8ll, 0x00005b8887367433ll, 0x0000c6980c6980c7ll, 0x00005dc74ae9fbecll, + 0x0000c565c87b5f9ell, 0x00006002958c5871ll, 0x0000c4372f855d83ll, 0x0000623a71cb82c8ll, + 0x0000c30c30c30c31ll, 0x0000646eea247c5cll, 0x0000c1e4bbd595f7ll, 0x000066a008e4788cll, + 0x0000c0c0c0c0c0c1ll, 0x000068cdd829fd81ll, 0x0000bfa02fe80bfbll, 0x00006af861e5fc7dll, + 0x0000be82fa0be830ll, 0x00006d1fafdce20all, 0x0000bd6910470767ll, 0x00006f43cba79e40ll, + 0x0000bc52640bc527ll, 0x00007164beb4a56dll, 0x0000bb3ee721a54ell, 0x000073829248e961ll, + 0x0000ba2e8ba2e8bbll, 0x0000759d4f80cba8ll, 0x0000b92143fa36f6ll, 0x000077b4ff5108d9ll, + 0x0000b81702e05c0cll, 0x000079c9aa879d53ll, 0x0000b70fbb5a19bfll, 0x00007bdb59cca388ll, + 0x0000b60b60b60b61ll, 0x00007dea15a32c1bll, 0x0000b509e68a9b95ll, 0x00007ff5e66a0ffell, + 0x0000b40b40b40b41ll, 0x000081fed45cbccbll, 0x0000b30f63528918ll, 0x00008404e793fb81ll, + 0x0000b21642c8590cll, 0x000086082806b1d5ll, 0x0000b11fd3b80b12ll, 0x000088089d8a9e47ll, + 0x0000b02c0b02c0b1ll, 0x00008a064fd50f2all, 0x0000af3addc680b0ll, 0x00008c01467b94bbll, + 0x0000ae4c415c9883ll, 0x00008df988f4ae80ll, 0x0000ad602b580ad7ll, 0x00008fef1e987409ll, + 0x0000ac7691840ac8ll, 0x000091e20ea1393ell, 0x0000ab8f69e2835all, 0x000093d2602c2e5fll, + 0x0000aaaaaaaaaaabll, 0x000095c01a39fbd6ll, 0x0000a9c84a47a080ll, 0x000097ab43af59f9ll, + 0x0000a8e83f5717c1ll, 0x00009993e355a4e5ll, 0x0000a80a80a80a81ll, 0x00009b79ffdb6c8bll, + 0x0000a72f0539782all, 0x00009d5d9fd5010bll, 0x0000a655c4392d7cll, 0x00009f3ec9bcfb80ll, + 0x0000a57eb50295fbll, 0x0000a11d83f4c355ll, 0x0000a4a9cf1d9684ll, 0x0000a2f9d4c51039ll, + 0x0000a3d70a3d70a4ll, 0x0000a4d3c25e68dcll, 0x0000a3065e3fae7dll, 0x0000a6ab52d99e76ll, + 0x0000a237c32b16d0ll, 0x0000a8808c384547ll, 0x0000a16b312ea8fdll, 0x0000aa5374652a1cll, + 0x0000a0a0a0a0a0a1ll, 0x0000ac241134c4e9ll, 0x00009fd809fd80a0ll, 0x0000adf26865a8a1ll, + 0x00009f1165e72549ll, 0x0000afbe7fa0f04dll, 0x00009e4cad23dd60ll, 0x0000b1885c7aa982ll, + 0x00009d89d89d89d9ll, 0x0000b35004723c46ll, 0x00009cc8e160c3fcll, 0x0000b5157cf2d078ll, + 0x00009c09c09c09c1ll, 0x0000b6d8cb53b0call, 0x00009b4c6f9ef03bll, 0x0000b899f4d8ab63ll, + 0x00009a90e7d95bc7ll, 0x0000ba58feb2703all, 0x000099d722dabde6ll, 0x0000bc15edfeed32ll, + 0x0000991f1a515886ll, 0x0000bdd0c7c9a817ll, 0x00009868c809868dll, 0x0000bf89910c1678ll, + 0x000097b425ed097cll, 0x0000c1404eadf383ll, 0x000097012e025c05ll, 0x0000c2f5058593d9ll, + 0x0000964fda6c0965ll, 0x0000c4a7ba58377cll, 0x000095a02568095bll, 0x0000c65871da59ddll, + 0x000094f2094f2095ll, 0x0000c80730b00016ll, 0x0000944580944581ll, 0x0000c9b3fb6d0559ll, + 0x0000939a85c4093all, 0x0000cb5ed69565afll, 0x000092f113840498ll, 0x0000cd07c69d8702ll, + 0x0000924924924925ll, 0x0000ceaecfea8085ll, 0x000091a2b3c4d5e7ll, 0x0000d053f6d26089ll, + 0x000090fdbc090fdcll, 0x0000d1f73f9c70c0ll, 0x0000905a38633e07ll, 0x0000d398ae817906ll, + 0x00008fb823ee08fcll, 0x0000d53847ac00a6ll, 0x00008f1779d9fdc4ll, 0x0000d6d60f388e41ll, + 0x00008e78356d1409ll, 0x0000d8720935e643ll, 0x00008dda5202376all, 0x0000da0c39a54804ll, + 0x00008d3dcb08d3ddll, 0x0000dba4a47aa996ll, 0x00008ca29c046515ll, 0x0000dd3b4d9cf24bll, + 0x00008c08c08c08c1ll, 0x0000ded038e633f3ll, 0x00008b70344a139cll, 0x0000e0636a23e2eell, + 0x00008ad8f2fba939ll, 0x0000e1f4e5170d02ll, 0x00008a42f870566all, 0x0000e384ad748f0ell, + 0x000089ae4089ae41ll, 0x0000e512c6e54998ll, 0x0000891ac73ae982ll, 0x0000e69f35065448ll, + 0x0000888888888889ll, 0x0000e829fb693044ll, 0x000087f78087f781ll, 0x0000e9b31d93f98ell, + 0x00008767ab5f34e5ll, 0x0000eb3a9f019750ll, 0x000086d905447a35ll, 0x0000ecc08321eb30ll, + 0x0000864b8a7de6d2ll, 0x0000ee44cd59ffabll, 0x000085bf37612cefll, 0x0000efc781043579ll, + 0x0000853408534086ll, 0x0000f148a170700all, 0x000084a9f9c8084bll, 0x0000f2c831e44116ll, + 0x0000842108421085ll, 0x0000f446359b1353ll, 0x0000839930523fbfll, 0x0000f5c2afc65447ll, + 0x000083126e978d50ll, 0x0000f73da38d9d4all, 0x0000828cbfbeb9a1ll, 0x0000f8b7140edbb1ll, + 0x0000820820820821ll, 0x0000fa2f045e7832ll, 0x000081848da8faf1ll, 0x0000fba577877d7dll, + 0x0000810204081021ll, 0x0000fd1a708bbe11ll, 0x0000808080808081ll, 0x0000fe8df263f957ll, + 0x0000800000000000ll, 0x0000ffff00000000ll, + }; + + + // LL_tbl[k] = 2^48*log2(1.0+k/2^15); +static int64_t __LL_tbl[256] = { + 0x0000000000000000ull, 0x00000002e2a60a00ull, 0x000000070cb64ec5ull, 0x00000009ef50ce67ull, + 0x0000000cd1e588fdull, 0x0000000fb4747e9cull, 0x0000001296fdaf5eull, 0x0000001579811b58ull, + 0x000000185bfec2a1ull, 0x0000001b3e76a552ull, 0x0000001e20e8c380ull, 0x0000002103551d43ull, + 0x00000023e5bbb2b2ull, 0x00000026c81c83e4ull, 0x00000029aa7790f0ull, 0x0000002c8cccd9edull, + 0x0000002f6f1c5ef2ull, 0x0000003251662017ull, 0x0000003533aa1d71ull, 0x0000003815e8571aull, + 0x0000003af820cd26ull, 0x0000003dda537faeull, 0x00000040bc806ec8ull, 0x000000439ea79a8cull, + 0x0000004680c90310ull, 0x0000004962e4a86cull, 0x0000004c44fa8ab6ull, 0x0000004f270aaa06ull, + 0x0000005209150672ull, 0x00000054eb19a013ull, 0x00000057cd1876fdull, 0x0000005aaf118b4aull, + 0x0000005d9104dd0full, 0x0000006072f26c64ull, 0x0000006354da3960ull, 0x0000006636bc441aull, + 0x0000006918988ca8ull, 0x0000006bfa6f1322ull, 0x0000006edc3fd79full, 0x00000071be0ada35ull, + 0x000000749fd01afdull, 0x00000077818f9a0cull, 0x0000007a6349577aull, 0x0000007d44fd535eull, + 0x0000008026ab8dceull, 0x00000083085406e3ull, 0x00000085e9f6beb2ull, 0x00000088cb93b552ull, + 0x0000008bad2aeadcull, 0x0000008e8ebc5f65ull, 0x0000009170481305ull, 0x0000009451ce05d3ull, + 0x00000097334e37e5ull, 0x0000009a14c8a953ull, 0x0000009cf63d5a33ull, 0x0000009fd7ac4a9dull, + 0x000000a2b07f3458ull, 0x000000a59a78ea6aull, 0x000000a87bd699fbull, 0x000000ab5d2e8970ull, + 0x000000ae3e80b8e3ull, 0x000000b11fcd2869ull, 0x000000b40113d818ull, 0x000000b6e254c80aull, + 0x000000b9c38ff853ull, 0x000000bca4c5690cull, 0x000000bf85f51a4aull, 0x000000c2671f0c26ull, + 0x000000c548433eb6ull, 0x000000c82961b211ull, 0x000000cb0a7a664dull, 0x000000cdeb8d5b82ull, + 0x000000d0cc9a91c8ull, 0x000000d3ada20933ull, 0x000000d68ea3c1ddull, 0x000000d96f9fbbdbull, + 0x000000dc5095f744ull, 0x000000df31867430ull, 0x000000e2127132b5ull, 0x000000e4f35632eaull, + 0x000000e7d43574e6ull, 0x000000eab50ef8c1ull, 0x000000ed95e2be90ull, 0x000000f076b0c66cull, + 0x000000f35779106aull, 0x000000f6383b9ca2ull, 0x000000f918f86b2aull, 0x000000fbf9af7c1aull, + 0x000000feda60cf88ull, 0x00000101bb0c658cull, 0x000001049bb23e3cull, 0x000001077c5259afull, + 0x0000010a5cecb7fcull, 0x0000010d3d81593aull, 0x000001101e103d7full, 0x00000112fe9964e4ull, + 0x00000115df1ccf7eull, 0x00000118bf9a7d64ull, 0x0000011ba0126eadull, 0x0000011e8084a371ull, + 0x0000012160f11bc6ull, 0x000001244157d7c3ull, 0x0000012721b8d77full, 0x0000012a02141b10ull, + 0x0000012ce269a28eull, 0x0000012fc2b96e0full, 0x00000132a3037daaull, 0x000001358347d177ull, + 0x000001386386698cull, 0x0000013b43bf45ffull, 0x0000013e23f266e9ull, 0x00000141041fcc5eull, + 0x00000143e4477678ull, 0x00000146c469654bull, 0x00000149a48598f0ull, 0x0000014c849c117cull, + 0x0000014f64accf08ull, 0x0000015244b7d1a9ull, 0x0000015524bd1976ull, 0x0000015804bca687ull, + 0x0000015ae4b678f2ull, 0x0000015dc4aa90ceull, 0x00000160a498ee31ull, 0x0000016384819134ull, + 0x00000166646479ecull, 0x000001694441a870ull, 0x0000016c24191cd7ull, 0x0000016df6ca19bdull, + 0x00000171e3b6d7aaull, 0x00000174c37d1e44ull, 0x00000177a33dab1cull, 0x0000017a82f87e49ull, + 0x0000017d62ad97e2ull, 0x00000180425cf7feull, 0x00000182b07f3458ull, 0x0000018601aa8c19ull, + 0x00000188e148c046ull, 0x0000018bc0e13b52ull, 0x0000018ea073fd52ull, 0x000001918001065dull, + 0x000001945f88568bull, 0x000001973f09edf2ull, 0x0000019a1e85ccaaull, 0x0000019cfdfbf2c8ull, + 0x0000019fdd6c6063ull, 0x000001a2bcd71593ull, 0x000001a59c3c126eull, 0x000001a87b9b570bull, + 0x000001ab5af4e380ull, 0x000001ae3a48b7e5ull, 0x000001b11996d450ull, 0x000001b3f8df38d9ull, + 0x000001b6d821e595ull, 0x000001b9b75eda9bull, 0x000001bc96961803ull, 0x000001bf75c79de3ull, + 0x000001c254f36c51ull, 0x000001c534198365ull, 0x000001c81339e336ull, 0x000001caf2548bd9ull, + 0x000001cdd1697d67ull, 0x000001d0b078b7f5ull, 0x000001d38f823b9aull, 0x000001d66e86086dull, + 0x000001d94d841e86ull, 0x000001dc2c7c7df9ull, 0x000001df0b6f26dfull, 0x000001e1ea5c194eull, + 0x000001e4c943555dull, 0x000001e7a824db23ull, 0x000001ea8700aab5ull, 0x000001ed65d6c42bull, + 0x000001f044a7279dull, 0x000001f32371d51full, 0x000001f60236cccaull, 0x000001f8e0f60eb3ull, + 0x000001fbbfaf9af3ull, 0x000001fe9e63719eull, 0x000002017d1192ccull, 0x000002045bb9fe94ull, + 0x000002073a5cb50dull, 0x00000209c06e6212ull, 0x0000020cf791026aull, 0x0000020fd622997cull, + 0x00000212b07f3458ull, 0x000002159334a8d8ull, 0x0000021871b52150ull, 0x0000021b502fe517ull, + 0x0000021d6a73a78full, 0x000002210d144eeeull, 0x00000223eb7df52cull, 0x00000226c9e1e713ull, + 0x00000229a84024bbull, 0x0000022c23679b4eull, 0x0000022f64eb83a8ull, 0x000002324338a51bull, + 0x00000235218012a9ull, 0x00000237ffc1cc69ull, 0x0000023a2c3b0ea4ull, 0x0000023d13ee805bull, + 0x0000024035e9221full, 0x00000243788faf25ull, 0x0000024656b4e735ull, 0x00000247ed646bfeull, + 0x0000024c12ee3d98ull, 0x0000024ef1025c1aull, 0x00000251cf10c799ull, 0x0000025492644d65ull, + 0x000002578b1c85eeull, 0x0000025a6919d8f0ull, 0x0000025d13ee805bull, 0x0000026025036716ull, + 0x0000026296453882ull, 0x00000265e0d62b53ull, 0x00000268beb701f3ull, 0x0000026b9c92265eull, + 0x0000026d32f798a9ull, 0x00000271583758ebull, 0x000002743601673bull, 0x0000027713c5c3b0ull, + 0x00000279f1846e5full, 0x0000027ccf3d6761ull, 0x0000027e6580aecbull, 0x000002828a9e44b3ull, + 0x0000028568462932ull, 0x00000287bdbf5255ull, 0x0000028b2384de4aull, 0x0000028d13ee805bull, + 0x0000029035e9221full, 0x0000029296453882ull, 0x0000029699bdfb61ull, 0x0000029902a37aabull, + 0x0000029c54b864c9ull, 0x0000029deabd1083ull, 0x000002a20f9c0bb5ull, 0x000002a4c7605d61ull, + 0x000002a7bdbf5255ull, 0x000002a96056dafcull, 0x000002ac3daf14efull, 0x000002af1b019ecaull, + 0x000002b296453882ull, 0x000002b5d022d80full, 0x000002b8fa471cb3ull, 0x000002ba9012e713ull, + 0x000002bd6d4901ccull, 0x000002c04a796cf6ull, 0x000002c327a428a6ull, 0x000002c61a5e8f4cull, + 0x000002c8e1e891f6ull, 0x000002cbbf023fc2ull, 0x000002ce9c163e6eull, 0x000002d179248e13ull, + 0x000002d4562d2ec6ull, 0x000002d73330209dull, 0x000002da102d63b0ull, 0x000002dced24f814ull, +}; + + + + +#endif diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c index a1ef53c04415..5b47736d27d9 100644 --- a/net/ceph/crush/mapper.c +++ b/net/ceph/crush/mapper.c @@ -20,7 +20,7 @@ #include <linux/crush/crush.h> #include <linux/crush/hash.h> -#include <linux/crush/mapper.h> +#include "crush_ln_table.h" /* * Implement the core CRUSH mapping algorithm. @@ -238,6 +238,102 @@ static int bucket_straw_choose(struct crush_bucket_straw *bucket, return bucket->h.items[high]; } +// compute 2^44*log2(input+1) +uint64_t crush_ln(unsigned xin) +{ + unsigned x=xin, x1; + int iexpon, index1, index2; + uint64_t RH, LH, LL, xl64, result; + + x++; + + // normalize input + iexpon = 15; + while(!(x&0x18000)) { x<<=1; iexpon--; } + + index1 = (x>>8)<<1; + // RH ~ 2^56/index1 + RH = __RH_LH_tbl[index1 - 256]; + // LH ~ 2^48 * log2(index1/256) + LH = __RH_LH_tbl[index1 + 1 - 256]; + + // RH*x ~ 2^48 * (2^15 + xf), xf<2^8 + xl64 = (int64_t)x * RH; + xl64 >>= 48; + x1 = xl64; + + result = iexpon; + result <<= (12 + 32); + + index2 = x1 & 0xff; + // LL ~ 2^48*log2(1.0+index2/2^15) + LL = __LL_tbl[index2]; + + LH = LH + LL; + + LH >>= (48-12 - 32); + result += LH; + + return result; +} + + +/* + * straw2 + * + * for reference, see: + * + * http://en.wikipedia.org/wiki/Exponential_distribution#Distribution_of_the_minimum_of_exponential_random_variables + * + */ + +static int bucket_straw2_choose(struct crush_bucket_straw2 *bucket, + int x, int r) +{ + unsigned i, high = 0; + unsigned u; + unsigned w; + __s64 ln, draw, high_draw = 0; + + for (i = 0; i < bucket->h.size; i++) { + w = bucket->item_weights[i]; + if (w) { + u = crush_hash32_3(bucket->h.hash, x, + bucket->h.items[i], r); + u &= 0xffff; + + /* + * for some reason slightly less than 0x10000 produces + * a slightly more accurate distribution... probably a + * rounding effect. + * + * the natural log lookup table maps [0,0xffff] + * (corresponding to real numbers [1/0x10000, 1] to + * [0, 0xffffffffffff] (corresponding to real numbers + * [-11.090355,0]). + */ + ln = crush_ln(u) - 0x1000000000000ll; + + /* + * divide by 16.16 fixed-point weight. note + * that the ln value is negative, so a larger + * weight means a larger (less negative) value + * for draw. + */ + draw = div64_s64(ln, w); + } else { + draw = S64_MIN; + } + + if (i == 0 || draw > high_draw) { + high = i; + high_draw = draw; + } + } + return bucket->h.items[high]; +} + + static int crush_bucket_choose(struct crush_bucket *in, int x, int r) { dprintk(" crush_bucket_choose %d x=%d r=%d\n", in->id, x, r); @@ -255,12 +351,16 @@ static int crush_bucket_choose(struct crush_bucket *in, int x, int r) case CRUSH_BUCKET_STRAW: return bucket_straw_choose((struct crush_bucket_straw *)in, x, r); + case CRUSH_BUCKET_STRAW2: + return bucket_straw2_choose((struct crush_bucket_straw2 *)in, + x, r); default: dprintk("unknown bucket %d alg %d\n", in->id, in->alg); return in->items[0]; } } + /* * true if device is marked "out" (failed, fully offloaded) * of the cluster @@ -290,6 +390,7 @@ static int is_out(const struct crush_map *map, * @type: the type of item to choose * @out: pointer to output vector * @outpos: our position in that vector + * @out_size: size of the out vector * @tries: number of attempts to make * @recurse_tries: number of attempts to have recursive chooseleaf make * @local_retries: localized retries @@ -304,6 +405,7 @@ static int crush_choose_firstn(const struct crush_map *map, const __u32 *weight, int weight_max, int x, int numrep, int type, int *out, int outpos, + int out_size, unsigned int tries, unsigned int recurse_tries, unsigned int local_retries, @@ -322,6 +424,7 @@ static int crush_choose_firstn(const struct crush_map *map, int item = 0; int itemtype; 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", recurse_to_leaf ? "_LEAF" : "", @@ -329,7 +432,7 @@ static int crush_choose_firstn(const struct crush_map *map, tries, recurse_tries, local_retries, local_fallback_retries, parent_r); - for (rep = outpos; rep < numrep; rep++) { + for (rep = outpos; rep < numrep && count > 0 ; rep++) { /* keep trying until we get a non-out, non-colliding item */ ftotal = 0; skip_rep = 0; @@ -403,7 +506,7 @@ static int crush_choose_firstn(const struct crush_map *map, map->buckets[-1-item], weight, weight_max, x, outpos+1, 0, - out2, outpos, + out2, outpos, count, recurse_tries, 0, local_retries, local_fallback_retries, @@ -463,6 +566,7 @@ reject: dprintk("CHOOSE got %d\n", item); out[outpos] = item; outpos++; + count--; } dprintk("CHOOSE returns %d\n", outpos); @@ -654,6 +758,7 @@ int crush_do_rule(const struct crush_map *map, __u32 step; int i, j; int numrep; + int out_size; /* * the original choose_total_tries value was off by one (it * counted "retries" and not "tries"). add one. @@ -761,6 +866,7 @@ int crush_do_rule(const struct crush_map *map, x, numrep, curstep->arg2, o+osize, j, + result_max-osize, choose_tries, recurse_tries, choose_local_retries, @@ -770,11 +876,13 @@ int crush_do_rule(const struct crush_map *map, c+osize, 0); } else { + out_size = ((numrep < (result_max-osize)) ? + numrep : (result_max-osize)); crush_choose_indep( map, map->buckets[-1-w[i]], weight, weight_max, - x, numrep, numrep, + x, out_size, numrep, curstep->arg2, o+osize, j, choose_tries, @@ -783,7 +891,7 @@ int crush_do_rule(const struct crush_map *map, recurse_to_leaf, c+osize, 0); - osize += numrep; + osize += out_size; } } diff --git a/net/ceph/debugfs.c b/net/ceph/debugfs.c index d2d525529f87..593dc2eabcc8 100644 --- a/net/ceph/debugfs.c +++ b/net/ceph/debugfs.c @@ -22,6 +22,7 @@ * .../monmap - current monmap * .../osdc - active osd requests * .../monc - mon client state + * .../client_options - libceph-only (i.e. not rbd or cephfs) options * .../dentry_lru - dump contents of dentry lru * .../caps - expose cap (reservation) stats * .../bdi - symlink to ../../bdi/something @@ -127,8 +128,6 @@ static int monc_show(struct seq_file *s, void *p) op = le16_to_cpu(req->request->hdr.type); if (op == CEPH_MSG_STATFS) seq_printf(s, "%llu statfs\n", req->tid); - else if (op == CEPH_MSG_POOLOP) - seq_printf(s, "%llu poolop\n", req->tid); else if (op == CEPH_MSG_MON_GET_VERSION) seq_printf(s, "%llu mon_get_version", req->tid); else @@ -179,10 +178,24 @@ static int osdc_show(struct seq_file *s, void *pp) return 0; } +static int client_options_show(struct seq_file *s, void *p) +{ + struct ceph_client *client = s->private; + int ret; + + ret = ceph_print_client_options(s, client); + if (ret) + return ret; + + seq_putc(s, '\n'); + return 0; +} + CEPH_DEFINE_SHOW_FUNC(monmap_show) CEPH_DEFINE_SHOW_FUNC(osdmap_show) CEPH_DEFINE_SHOW_FUNC(monc_show) CEPH_DEFINE_SHOW_FUNC(osdc_show) +CEPH_DEFINE_SHOW_FUNC(client_options_show) int ceph_debugfs_init(void) { @@ -244,6 +257,14 @@ int ceph_debugfs_client_init(struct ceph_client *client) if (!client->debugfs_osdmap) goto out; + client->debugfs_options = debugfs_create_file("client_options", + 0600, + client->debugfs_dir, + client, + &client_options_show_fops); + if (!client->debugfs_options) + goto out; + return 0; out: @@ -254,6 +275,7 @@ out: void ceph_debugfs_client_cleanup(struct ceph_client *client) { dout("ceph_debugfs_client_cleanup %p\n", client); + debugfs_remove(client->debugfs_options); debugfs_remove(client->debugfs_osdmap); debugfs_remove(client->debugfs_monmap); debugfs_remove(client->osdc.debugfs_file); diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 8d1653caffdb..967080a9f043 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -484,7 +484,7 @@ static int ceph_tcp_connect(struct ceph_connection *con) IPPROTO_TCP, &sock); if (ret) return ret; - sock->sk->sk_allocation = GFP_NOFS | __GFP_MEMALLOC; + sock->sk->sk_allocation = GFP_NOFS; #ifdef CONFIG_LOCKDEP lockdep_set_class(&sock->sk->sk_lock, &socket_class); @@ -505,12 +505,18 @@ static int ceph_tcp_connect(struct ceph_connection *con) pr_err("connect %s error %d\n", ceph_pr_addr(&con->peer_addr.in_addr), ret); sock_release(sock); - con->error_msg = "connect error"; - return ret; } - sk_set_memalloc(sock->sk); + if (con->msgr->tcp_nodelay) { + int optval = 1; + + ret = kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, + (char *)&optval, sizeof(optval)); + if (ret) + pr_err("kernel_setsockopt(TCP_NODELAY) failed: %d", + ret); + } con->sock = sock; return 0; @@ -1196,8 +1202,18 @@ static void prepare_write_message_footer(struct ceph_connection *con) dout("prepare_write_message_footer %p\n", con); con->out_kvec_is_msg = true; con->out_kvec[v].iov_base = &m->footer; - con->out_kvec[v].iov_len = sizeof(m->footer); - con->out_kvec_bytes += sizeof(m->footer); + if (con->peer_features & CEPH_FEATURE_MSG_AUTH) { + if (con->ops->sign_message) + con->ops->sign_message(con, m); + else + m->footer.sig = 0; + con->out_kvec[v].iov_len = sizeof(m->footer); + con->out_kvec_bytes += sizeof(m->footer); + } else { + m->old_footer.flags = m->footer.flags; + con->out_kvec[v].iov_len = sizeof(m->old_footer); + con->out_kvec_bytes += sizeof(m->old_footer); + } con->out_kvec_left++; con->out_more = m->more_to_follow; con->out_msg_done = true; @@ -2127,12 +2143,10 @@ static int process_connect(struct ceph_connection *con) * to WAIT. This shouldn't happen if we are the * client. */ - pr_err("process_connect got WAIT as client\n"); con->error_msg = "protocol error, got WAIT as client"; return -1; default: - pr_err("connect protocol error, will retry\n"); con->error_msg = "protocol error, garbage tag during connect"; return -1; } @@ -2249,6 +2263,7 @@ static int read_partial_message(struct ceph_connection *con) int ret; unsigned int front_len, middle_len, data_len; bool do_datacrc = !con->msgr->nocrc; + bool need_sign = (con->peer_features & CEPH_FEATURE_MSG_AUTH); u64 seq; u32 crc; @@ -2263,8 +2278,7 @@ static int read_partial_message(struct ceph_connection *con) crc = crc32c(0, &con->in_hdr, offsetof(struct ceph_msg_header, crc)); if (cpu_to_le32(crc) != con->in_hdr.crc) { - pr_err("read_partial_message bad hdr " - " crc %u != expected %u\n", + pr_err("read_partial_message bad hdr crc %u != expected %u\n", crc, con->in_hdr.crc); return -EBADMSG; } @@ -2294,7 +2308,7 @@ static int read_partial_message(struct ceph_connection *con) pr_err("read_partial_message bad seq %lld expected %lld\n", seq, con->in_seq + 1); con->error_msg = "bad message sequence # for incoming message"; - return -EBADMSG; + return -EBADE; } /* allocate message? */ @@ -2361,12 +2375,21 @@ static int read_partial_message(struct ceph_connection *con) } /* footer */ - size = sizeof (m->footer); + if (need_sign) + size = sizeof(m->footer); + else + size = sizeof(m->old_footer); + end += size; ret = read_partial(con, end, size, &m->footer); if (ret <= 0) return ret; + if (!need_sign) { + m->footer.flags = m->old_footer.flags; + m->footer.sig = 0; + } + dout("read_partial_message got msg %p %d (%u) + %d (%u) + %d (%u)\n", m, front_len, m->footer.front_crc, middle_len, m->footer.middle_crc, data_len, m->footer.data_crc); @@ -2390,6 +2413,12 @@ static int read_partial_message(struct ceph_connection *con) return -EBADMSG; } + if (need_sign && con->ops->check_message_signature && + con->ops->check_message_signature(con, m)) { + pr_err("read_partial_message %p signature check failed\n", m); + return -EBADMSG; + } + return 1; /* done! */ } @@ -2626,6 +2655,8 @@ more: switch (ret) { case -EBADMSG: con->error_msg = "bad crc"; + /* fall through */ + case -EBADE: ret = -EIO; break; case -EIO: @@ -2772,11 +2803,8 @@ static void con_work(struct work_struct *work) { struct ceph_connection *con = container_of(work, struct ceph_connection, work.work); - unsigned long pflags = current->flags; bool fault; - current->flags |= PF_MEMALLOC; - mutex_lock(&con->mutex); while (true) { int ret; @@ -2807,7 +2835,8 @@ static void con_work(struct work_struct *work) if (ret < 0) { if (ret == -EAGAIN) continue; - con->error_msg = "socket error on read"; + if (!con->error_msg) + con->error_msg = "socket error on read"; fault = true; break; } @@ -2816,7 +2845,8 @@ static void con_work(struct work_struct *work) if (ret < 0) { if (ret == -EAGAIN) continue; - con->error_msg = "socket error on write"; + if (!con->error_msg) + con->error_msg = "socket error on write"; fault = true; } @@ -2830,8 +2860,6 @@ static void con_work(struct work_struct *work) con_fault_finish(con); con->ops->put(con); - - tsk_restore_flags(current, pflags, PF_MEMALLOC); } /* @@ -2840,11 +2868,13 @@ static void con_work(struct work_struct *work) */ static void con_fault(struct ceph_connection *con) { - pr_warn("%s%lld %s %s\n", ENTITY_NAME(con->peer_name), - ceph_pr_addr(&con->peer_addr.in_addr), con->error_msg); dout("fault %p state %lu to peer %s\n", con, con->state, ceph_pr_addr(&con->peer_addr.in_addr)); + pr_warn("%s%lld %s %s\n", ENTITY_NAME(con->peer_name), + ceph_pr_addr(&con->peer_addr.in_addr), con->error_msg); + con->error_msg = NULL; + WARN_ON(con->state != CON_STATE_CONNECTING && con->state != CON_STATE_NEGOTIATING && con->state != CON_STATE_OPEN); @@ -2896,7 +2926,8 @@ void ceph_messenger_init(struct ceph_messenger *msgr, struct ceph_entity_addr *myaddr, u64 supported_features, u64 required_features, - bool nocrc) + bool nocrc, + bool tcp_nodelay) { msgr->supported_features = supported_features; msgr->required_features = required_features; @@ -2911,6 +2942,7 @@ void ceph_messenger_init(struct ceph_messenger *msgr, get_random_bytes(&msgr->inst.addr.nonce, sizeof(msgr->inst.addr.nonce)); encode_my_addr(msgr); msgr->nocrc = nocrc; + msgr->tcp_nodelay = tcp_nodelay; atomic_set(&msgr->stopping, 0); @@ -3264,8 +3296,8 @@ static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip) */ if (*skip) return 0; - con->error_msg = "error allocating memory for incoming message"; + con->error_msg = "error allocating memory for incoming message"; return -ENOMEM; } memcpy(&con->in_msg->hdr, &con->in_hdr, sizeof(con->in_hdr)); @@ -3288,7 +3320,7 @@ static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip) static void ceph_msg_free(struct ceph_msg *m) { dout("%s %p\n", __func__, m); - ceph_kvfree(m->front.iov_base); + kvfree(m->front.iov_base); kmem_cache_free(ceph_msg_cache, m); } diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index a83062ceeec9..2b3cf05e87b0 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -410,7 +410,7 @@ out_unlocked: } /* - * generic requests (e.g., statfs, poolop) + * generic requests (currently statfs, mon_get_version) */ static struct ceph_mon_generic_request *__lookup_generic_req( struct ceph_mon_client *monc, u64 tid) @@ -569,7 +569,7 @@ static void handle_statfs_reply(struct ceph_mon_client *monc, return; bad: - pr_err("corrupt generic reply, tid %llu\n", tid); + pr_err("corrupt statfs reply, tid %llu\n", tid); ceph_msg_dump(msg); } @@ -588,7 +588,6 @@ int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf) kref_init(&req->kref); req->buf = buf; - req->buf_len = sizeof(*buf); init_completion(&req->completion); err = -ENOMEM; @@ -611,7 +610,7 @@ int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf) err = do_generic_request(monc, req); out: - kref_put(&req->kref, release_generic_request); + put_generic_request(req); return err; } EXPORT_SYMBOL(ceph_monc_do_statfs); @@ -647,7 +646,7 @@ static void handle_get_version_reply(struct ceph_mon_client *monc, return; bad: - pr_err("corrupt mon_get_version reply\n"); + pr_err("corrupt mon_get_version reply, tid %llu\n", tid); ceph_msg_dump(msg); } @@ -670,7 +669,6 @@ int ceph_monc_do_get_version(struct ceph_mon_client *monc, const char *what, kref_init(&req->kref); req->buf = newest; - req->buf_len = sizeof(*newest); init_completion(&req->completion); req->request = ceph_msg_new(CEPH_MSG_MON_GET_VERSION, @@ -701,134 +699,12 @@ int ceph_monc_do_get_version(struct ceph_mon_client *monc, const char *what, mutex_unlock(&monc->mutex); out: - kref_put(&req->kref, release_generic_request); + put_generic_request(req); return err; } EXPORT_SYMBOL(ceph_monc_do_get_version); /* - * pool ops - */ -static int get_poolop_reply_buf(const char *src, size_t src_len, - char *dst, size_t dst_len) -{ - u32 buf_len; - - if (src_len != sizeof(u32) + dst_len) - return -EINVAL; - - buf_len = le32_to_cpu(*(u32 *)src); - if (buf_len != dst_len) - return -EINVAL; - - memcpy(dst, src + sizeof(u32), dst_len); - return 0; -} - -static void handle_poolop_reply(struct ceph_mon_client *monc, - struct ceph_msg *msg) -{ - struct ceph_mon_generic_request *req; - struct ceph_mon_poolop_reply *reply = msg->front.iov_base; - u64 tid = le64_to_cpu(msg->hdr.tid); - - if (msg->front.iov_len < sizeof(*reply)) - goto bad; - dout("handle_poolop_reply %p tid %llu\n", msg, tid); - - mutex_lock(&monc->mutex); - req = __lookup_generic_req(monc, tid); - if (req) { - if (req->buf_len && - get_poolop_reply_buf(msg->front.iov_base + sizeof(*reply), - msg->front.iov_len - sizeof(*reply), - req->buf, req->buf_len) < 0) { - mutex_unlock(&monc->mutex); - goto bad; - } - req->result = le32_to_cpu(reply->reply_code); - get_generic_request(req); - } - mutex_unlock(&monc->mutex); - if (req) { - complete(&req->completion); - put_generic_request(req); - } - return; - -bad: - pr_err("corrupt generic reply, tid %llu\n", tid); - ceph_msg_dump(msg); -} - -/* - * Do a synchronous pool op. - */ -static int do_poolop(struct ceph_mon_client *monc, u32 op, - u32 pool, u64 snapid, - char *buf, int len) -{ - struct ceph_mon_generic_request *req; - struct ceph_mon_poolop *h; - int err; - - req = kzalloc(sizeof(*req), GFP_NOFS); - if (!req) - return -ENOMEM; - - kref_init(&req->kref); - req->buf = buf; - req->buf_len = len; - init_completion(&req->completion); - - err = -ENOMEM; - req->request = ceph_msg_new(CEPH_MSG_POOLOP, sizeof(*h), GFP_NOFS, - true); - if (!req->request) - goto out; - req->reply = ceph_msg_new(CEPH_MSG_POOLOP_REPLY, 1024, GFP_NOFS, - true); - if (!req->reply) - goto out; - - /* fill out request */ - req->request->hdr.version = cpu_to_le16(2); - h = req->request->front.iov_base; - h->monhdr.have_version = 0; - h->monhdr.session_mon = cpu_to_le16(-1); - h->monhdr.session_mon_tid = 0; - h->fsid = monc->monmap->fsid; - h->pool = cpu_to_le32(pool); - h->op = cpu_to_le32(op); - h->auid = 0; - h->snapid = cpu_to_le64(snapid); - h->name_len = 0; - - err = do_generic_request(monc, req); - -out: - kref_put(&req->kref, release_generic_request); - return err; -} - -int ceph_monc_create_snapid(struct ceph_mon_client *monc, - u32 pool, u64 *snapid) -{ - return do_poolop(monc, POOL_OP_CREATE_UNMANAGED_SNAP, - pool, 0, (char *)snapid, sizeof(*snapid)); - -} -EXPORT_SYMBOL(ceph_monc_create_snapid); - -int ceph_monc_delete_snapid(struct ceph_mon_client *monc, - u32 pool, u64 snapid) -{ - return do_poolop(monc, POOL_OP_CREATE_UNMANAGED_SNAP, - pool, snapid, NULL, 0); - -} - -/* * Resend pending generic requests. */ static void __resend_generic_request(struct ceph_mon_client *monc) @@ -1112,10 +988,6 @@ static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) handle_get_version_reply(monc, msg); break; - case CEPH_MSG_POOLOP_REPLY: - handle_poolop_reply(monc, msg); - break; - case CEPH_MSG_MON_MAP: ceph_monc_handle_map(monc, msg); break; @@ -1154,7 +1026,6 @@ static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con, case CEPH_MSG_MON_SUBSCRIBE_ACK: m = ceph_msg_get(monc->m_subscribe_ack); break; - case CEPH_MSG_POOLOP_REPLY: case CEPH_MSG_STATFS_REPLY: return get_generic_reply(con, hdr, skip); case CEPH_MSG_AUTH_REPLY: diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 6f164289bde8..c4ec9239249a 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -292,6 +292,10 @@ static void osd_req_op_data_release(struct ceph_osd_request *osd_req, ceph_osd_data_release(&op->cls.request_data); ceph_osd_data_release(&op->cls.response_data); break; + case CEPH_OSD_OP_SETXATTR: + case CEPH_OSD_OP_CMPXATTR: + ceph_osd_data_release(&op->xattr.osd_data); + break; default: break; } @@ -476,8 +480,7 @@ void osd_req_op_extent_init(struct ceph_osd_request *osd_req, size_t payload_len = 0; BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && - opcode != CEPH_OSD_OP_DELETE && opcode != CEPH_OSD_OP_ZERO && - opcode != CEPH_OSD_OP_TRUNCATE); + opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE); op->extent.offset = offset; op->extent.length = length; @@ -545,6 +548,39 @@ void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, } EXPORT_SYMBOL(osd_req_op_cls_init); +int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, + u16 opcode, const char *name, const void *value, + size_t size, u8 cmp_op, u8 cmp_mode) +{ + struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode); + struct ceph_pagelist *pagelist; + size_t payload_len; + + BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); + + pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); + if (!pagelist) + return -ENOMEM; + + ceph_pagelist_init(pagelist); + + payload_len = strlen(name); + op->xattr.name_len = payload_len; + ceph_pagelist_append(pagelist, name, payload_len); + + op->xattr.value_len = size; + ceph_pagelist_append(pagelist, value, size); + payload_len += size; + + op->xattr.cmp_op = cmp_op; + op->xattr.cmp_mode = cmp_mode; + + ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); + op->payload_len = payload_len; + return 0; +} +EXPORT_SYMBOL(osd_req_op_xattr_init); + void osd_req_op_watch_init(struct ceph_osd_request *osd_req, unsigned int which, u16 opcode, u64 cookie, u64 version, int flag) @@ -626,7 +662,6 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req, case CEPH_OSD_OP_READ: case CEPH_OSD_OP_WRITE: case CEPH_OSD_OP_ZERO: - case CEPH_OSD_OP_DELETE: case CEPH_OSD_OP_TRUNCATE: if (src->op == CEPH_OSD_OP_WRITE) request_data_len = src->extent.length; @@ -676,6 +711,19 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req, dst->alloc_hint.expected_write_size = cpu_to_le64(src->alloc_hint.expected_write_size); break; + case CEPH_OSD_OP_SETXATTR: + case CEPH_OSD_OP_CMPXATTR: + dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); + dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); + dst->xattr.cmp_op = src->xattr.cmp_op; + dst->xattr.cmp_mode = src->xattr.cmp_mode; + osd_data = &src->xattr.osd_data; + ceph_osdc_msg_data_add(req->r_request, osd_data); + request_data_len = osd_data->pagelist->length; + break; + case CEPH_OSD_OP_CREATE: + case CEPH_OSD_OP_DELETE: + break; default: pr_err("unsupported osd opcode %s\n", ceph_osd_op_name(src->op)); @@ -705,7 +753,8 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req, struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, struct ceph_file_layout *layout, struct ceph_vino vino, - u64 off, u64 *plen, int num_ops, + u64 off, u64 *plen, + unsigned int which, int num_ops, int opcode, int flags, struct ceph_snap_context *snapc, u32 truncate_seq, @@ -716,13 +765,11 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, u64 objnum = 0; u64 objoff = 0; u64 objlen = 0; - u32 object_size; - u64 object_base; int r; BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && - opcode != CEPH_OSD_OP_DELETE && opcode != CEPH_OSD_OP_ZERO && - opcode != CEPH_OSD_OP_TRUNCATE); + opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && + opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE); req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, GFP_NOFS); @@ -738,29 +785,24 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, return ERR_PTR(r); } - object_size = le32_to_cpu(layout->fl_object_size); - object_base = off - objoff; - if (!(truncate_seq == 1 && truncate_size == -1ULL)) { - if (truncate_size <= object_base) { - truncate_size = 0; - } else { - truncate_size -= object_base; - if (truncate_size > object_size) - truncate_size = object_size; + if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { + osd_req_op_init(req, which, opcode); + } else { + u32 object_size = le32_to_cpu(layout->fl_object_size); + u32 object_base = off - objoff; + if (!(truncate_seq == 1 && truncate_size == -1ULL)) { + if (truncate_size <= object_base) { + truncate_size = 0; + } else { + truncate_size -= object_base; + if (truncate_size > object_size) + truncate_size = object_size; + } } + osd_req_op_extent_init(req, which, opcode, objoff, objlen, + truncate_size, truncate_seq); } - osd_req_op_extent_init(req, 0, opcode, objoff, objlen, - truncate_size, truncate_seq); - - /* - * A second op in the ops array means the caller wants to - * also issue a include a 'startsync' command so that the - * osd will flush data quickly. - */ - if (num_ops > 1) - osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC); - req->r_base_oloc.pool = ceph_file_layout_pg_pool(*layout); snprintf(req->r_base_oid.name, sizeof(req->r_base_oid.name), @@ -993,10 +1035,11 @@ static void put_osd(struct ceph_osd *osd) { dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), atomic_read(&osd->o_ref) - 1); - if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) { + if (atomic_dec_and_test(&osd->o_ref)) { struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; - ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer); + if (osd->o_auth.authorizer) + ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer); kfree(osd); } } @@ -1006,14 +1049,24 @@ static void put_osd(struct ceph_osd *osd) */ static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) { - dout("__remove_osd %p\n", osd); + dout("%s %p osd%d\n", __func__, osd, osd->o_osd); WARN_ON(!list_empty(&osd->o_requests)); WARN_ON(!list_empty(&osd->o_linger_requests)); - rb_erase(&osd->o_node, &osdc->osds); list_del_init(&osd->o_osd_lru); - ceph_con_close(&osd->o_con); - put_osd(osd); + rb_erase(&osd->o_node, &osdc->osds); + RB_CLEAR_NODE(&osd->o_node); +} + +static void remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) +{ + dout("%s %p osd%d\n", __func__, osd, osd->o_osd); + + if (!RB_EMPTY_NODE(&osd->o_node)) { + ceph_con_close(&osd->o_con); + __remove_osd(osdc, osd); + put_osd(osd); + } } static void remove_all_osds(struct ceph_osd_client *osdc) @@ -1023,7 +1076,7 @@ static void remove_all_osds(struct ceph_osd_client *osdc) while (!RB_EMPTY_ROOT(&osdc->osds)) { struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), struct ceph_osd, o_node); - __remove_osd(osdc, osd); + remove_osd(osdc, osd); } mutex_unlock(&osdc->request_mutex); } @@ -1064,7 +1117,7 @@ static void remove_old_osds(struct ceph_osd_client *osdc) list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { if (time_before(jiffies, osd->lru_ttl)) break; - __remove_osd(osdc, osd); + remove_osd(osdc, osd); } mutex_unlock(&osdc->request_mutex); } @@ -1079,8 +1132,7 @@ static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) dout("__reset_osd %p osd%d\n", osd, osd->o_osd); if (list_empty(&osd->o_requests) && list_empty(&osd->o_linger_requests)) { - __remove_osd(osdc, osd); - + remove_osd(osdc, osd); return -ENODEV; } @@ -1254,8 +1306,6 @@ static void __unregister_linger_request(struct ceph_osd_client *osdc, if (list_empty(&req->r_osd_item)) req->r_osd = NULL; } - - list_del_init(&req->r_req_lru_item); /* can be on notarget */ ceph_osdc_put_request(req); } @@ -1884,6 +1934,7 @@ static void reset_changed_osds(struct ceph_osd_client *osdc) { struct rb_node *p, *n; + dout("%s %p\n", __func__, osdc); for (p = rb_first(&osdc->osds); p; p = n) { struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); @@ -1964,20 +2015,29 @@ static void kick_requests(struct ceph_osd_client *osdc, bool force_resend, err = __map_request(osdc, req, force_resend || force_resend_writes); dout("__map_request returned %d\n", err); - if (err == 0) - continue; /* no change and no osd was specified */ if (err < 0) continue; /* hrm! */ - if (req->r_osd == NULL) { - dout("tid %llu maps to no valid osd\n", req->r_tid); - needmap++; /* request a newer map */ - continue; - } + if (req->r_osd == NULL || err > 0) { + if (req->r_osd == NULL) { + dout("lingering %p tid %llu maps to no osd\n", + req, req->r_tid); + /* + * A homeless lingering request makes + * no sense, as it's job is to keep + * a particular OSD connection open. + * Request a newer map and kick the + * request, knowing that it won't be + * resent until we actually get a map + * that can tell us where to send it. + */ + needmap++; + } - dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid, - req->r_osd ? req->r_osd->o_osd : -1); - __register_request(osdc, req); - __unregister_linger_request(osdc, req); + dout("kicking lingering %p tid %llu osd%d\n", req, + req->r_tid, req->r_osd ? req->r_osd->o_osd : -1); + __register_request(osdc, req); + __unregister_linger_request(osdc, req); + } } reset_changed_osds(osdc); mutex_unlock(&osdc->request_mutex); @@ -2626,7 +2686,7 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc, dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, vino.snap, off, *plen); - req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 1, + req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1, CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, NULL, truncate_seq, truncate_size, false); @@ -2669,7 +2729,7 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, int page_align = off & ~PAGE_MASK; BUG_ON(vino.snap != CEPH_NOSNAP); /* snapshots aren't writeable */ - req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 1, + req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1, CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, snapc, truncate_seq, truncate_size, @@ -2920,6 +2980,20 @@ static int invalidate_authorizer(struct ceph_connection *con) return ceph_monc_validate_auth(&osdc->client->monc); } +static int sign_message(struct ceph_connection *con, struct ceph_msg *msg) +{ + struct ceph_osd *o = con->private; + struct ceph_auth_handshake *auth = &o->o_auth; + return ceph_auth_sign_message(auth, msg); +} + +static int check_message_signature(struct ceph_connection *con, struct ceph_msg *msg) +{ + struct ceph_osd *o = con->private; + struct ceph_auth_handshake *auth = &o->o_auth; + return ceph_auth_check_message_signature(auth, msg); +} + static const struct ceph_connection_operations osd_con_ops = { .get = get_osd_con, .put = put_osd_con, @@ -2928,5 +3002,7 @@ static const struct ceph_connection_operations osd_con_ops = { .verify_authorizer_reply = verify_authorizer_reply, .invalidate_authorizer = invalidate_authorizer, .alloc_msg = alloc_msg, + .sign_message = sign_message, + .check_message_signature = check_message_signature, .fault = osd_reset, }; diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index b8c3fde5b04f..15796696d64e 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -122,6 +122,22 @@ bad: return -EINVAL; } +static int crush_decode_straw2_bucket(void **p, void *end, + struct crush_bucket_straw2 *b) +{ + int j; + dout("crush_decode_straw2_bucket %p to %p\n", *p, end); + b->item_weights = kcalloc(b->h.size, sizeof(u32), GFP_NOFS); + if (b->item_weights == NULL) + return -ENOMEM; + ceph_decode_need(p, end, b->h.size * sizeof(u32), bad); + for (j = 0; j < b->h.size; j++) + b->item_weights[j] = ceph_decode_32(p); + return 0; +bad: + return -EINVAL; +} + static int skip_name_map(void **p, void *end) { int len; @@ -204,6 +220,9 @@ static struct crush_map *crush_decode(void *pbyval, void *end) case CRUSH_BUCKET_STRAW: size = sizeof(struct crush_bucket_straw); break; + case CRUSH_BUCKET_STRAW2: + size = sizeof(struct crush_bucket_straw2); + break; default: err = -EINVAL; goto bad; @@ -261,6 +280,12 @@ static struct crush_map *crush_decode(void *pbyval, void *end) if (err < 0) goto bad; break; + case CRUSH_BUCKET_STRAW2: + err = crush_decode_straw2_bucket(p, end, + (struct crush_bucket_straw2 *)b); + if (err < 0) + goto bad; + break; } } diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c index 555013034f7a..096d91447e06 100644 --- a/net/ceph/pagevec.c +++ b/net/ceph/pagevec.c @@ -23,17 +23,15 @@ struct page **ceph_get_direct_page_vector(const void __user *data, if (!pages) return ERR_PTR(-ENOMEM); - down_read(¤t->mm->mmap_sem); while (got < num_pages) { - rc = get_user_pages(current, current->mm, + rc = get_user_pages_unlocked(current, current->mm, (unsigned long)data + ((unsigned long)got * PAGE_SIZE), - num_pages - got, write_page, 0, pages + got, NULL); + num_pages - got, write_page, 0, pages + got); if (rc < 0) break; BUG_ON(rc == 0); got += rc; } - up_read(¤t->mm->mmap_sem); if (rc < 0) goto fail; return pages; |