diff options
Diffstat (limited to 'include/linux/ceph')
| -rw-r--r-- | include/linux/ceph/ceph_features.h | 27 | ||||
| -rw-r--r-- | include/linux/ceph/ceph_fs.h | 14 | ||||
| -rw-r--r-- | include/linux/ceph/decode.h | 49 | ||||
| -rw-r--r-- | include/linux/ceph/libceph.h | 10 | ||||
| -rw-r--r-- | include/linux/ceph/messenger.h | 60 | ||||
| -rw-r--r-- | include/linux/ceph/mon_client.h | 2 | ||||
| -rw-r--r-- | include/linux/ceph/msgpool.h | 3 |
7 files changed, 105 insertions, 60 deletions
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h new file mode 100644 index 0000000..dad579b --- /dev/null +++ b/include/linux/ceph/ceph_features.h @@ -0,0 +1,27 @@ +#ifndef __CEPH_FEATURES +#define __CEPH_FEATURES + +/* + * feature bits + */ +#define CEPH_FEATURE_UID (1<<0) +#define CEPH_FEATURE_NOSRCADDR (1<<1) +#define CEPH_FEATURE_MONCLOCKCHECK (1<<2) +#define CEPH_FEATURE_FLOCK (1<<3) +#define CEPH_FEATURE_SUBSCRIBE2 (1<<4) +#define CEPH_FEATURE_MONNAMES (1<<5) +#define CEPH_FEATURE_RECONNECT_SEQ (1<<6) +#define CEPH_FEATURE_DIRLAYOUTHASH (1<<7) +/* bits 8-17 defined by user-space; not supported yet here */ +#define CEPH_FEATURE_CRUSH_TUNABLES (1<<18) + +/* + * Features supported. + */ +#define CEPH_FEATURES_SUPPORTED_DEFAULT \ + (CEPH_FEATURE_NOSRCADDR | \ + CEPH_FEATURE_CRUSH_TUNABLES) + +#define CEPH_FEATURES_REQUIRED_DEFAULT \ + (CEPH_FEATURE_NOSRCADDR) +#endif diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h index e81ab30..d021610 100644 --- a/include/linux/ceph/ceph_fs.h +++ b/include/linux/ceph/ceph_fs.h @@ -35,20 +35,6 @@ /* arbitrary limit on max # of monitors (cluster of 3 is typical) */ #define CEPH_MAX_MON 31 - -/* - * feature bits - */ -#define CEPH_FEATURE_UID (1<<0) -#define CEPH_FEATURE_NOSRCADDR (1<<1) -#define CEPH_FEATURE_MONCLOCKCHECK (1<<2) -#define CEPH_FEATURE_FLOCK (1<<3) -#define CEPH_FEATURE_SUBSCRIBE2 (1<<4) -#define CEPH_FEATURE_MONNAMES (1<<5) -#define CEPH_FEATURE_RECONNECT_SEQ (1<<6) -#define CEPH_FEATURE_DIRLAYOUTHASH (1<<7) - - /* * ceph_file_layout - describe data layout for a file/inode */ diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h index d8615de..4bbf2db 100644 --- a/include/linux/ceph/decode.h +++ b/include/linux/ceph/decode.h @@ -1,6 +1,7 @@ #ifndef __CEPH_DECODE_H #define __CEPH_DECODE_H +#include <linux/err.h> #include <linux/bug.h> #include <linux/time.h> #include <asm/unaligned.h> @@ -85,6 +86,52 @@ static inline int ceph_has_room(void **p, void *end, size_t n) } while (0) /* + * Allocate a buffer big enough to hold the wire-encoded string, and + * decode the string into it. The resulting string will always be + * terminated with '\0'. If successful, *p will be advanced + * past the decoded data. Also, if lenp is not a null pointer, the + * length (not including the terminating '\0') will be recorded in + * *lenp. Note that a zero-length string is a valid return value. + * + * Returns a pointer to the newly-allocated string buffer, or a + * pointer-coded errno if an error occurs. Neither *p nor *lenp + * will have been updated if an error is returned. + * + * There are two possible failures: + * - converting the string would require accessing memory at or + * beyond the "end" pointer provided (-E + * - memory could not be allocated for the result + */ +static inline char *ceph_extract_encoded_string(void **p, void *end, + size_t *lenp, gfp_t gfp) +{ + u32 len; + void *sp = *p; + char *buf; + + ceph_decode_32_safe(&sp, end, len, bad); + if (!ceph_has_room(&sp, end, len)) + goto bad; + + buf = kmalloc(len + 1, gfp); + if (!buf) + return ERR_PTR(-ENOMEM); + + if (len) + memcpy(buf, sp, len); + buf[len] = '\0'; + + *p = (char *) *p + sizeof (u32) + len; + if (lenp) + *lenp = (size_t) len; + + return buf; + +bad: + return ERR_PTR(-ERANGE); +} + +/* * struct ceph_timespec <-> struct timespec */ static inline void ceph_decode_timespec(struct timespec *ts, @@ -151,7 +198,7 @@ static inline void ceph_encode_filepath(void **p, void *end, u64 ino, const char *path) { u32 len = path ? strlen(path) : 0; - BUG_ON(*p + sizeof(ino) + sizeof(len) + len > end); + BUG_ON(*p + 1 + sizeof(ino) + sizeof(len) + len > end); ceph_encode_8(p, 1); ceph_encode_64(p, ino); ceph_encode_32(p, len); diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index e71d683..4262478 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -23,12 +23,6 @@ #include "ceph_fs.h" /* - * Supported features - */ -#define CEPH_FEATURE_SUPPORTED_DEFAULT CEPH_FEATURE_NOSRCADDR -#define CEPH_FEATURE_REQUIRED_DEFAULT CEPH_FEATURE_NOSRCADDR - -/* * mount options */ #define CEPH_OPT_FSID (1<<0) @@ -132,7 +126,7 @@ struct ceph_client { u32 supported_features; u32 required_features; - struct ceph_messenger *msgr; /* messenger instance */ + struct ceph_messenger msgr; /* messenger instance */ struct ceph_mon_client monc; struct ceph_osd_client osdc; @@ -160,7 +154,7 @@ struct ceph_client { struct ceph_snap_context { atomic_t nref; u64 seq; - int num_snaps; + u32 num_snaps; u64 snaps[]; }; diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index 44c87e7..189ae06 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -31,9 +31,6 @@ struct ceph_connection_operations { int (*verify_authorizer_reply) (struct ceph_connection *con, int len); int (*invalidate_authorizer)(struct ceph_connection *con); - /* protocol version mismatch */ - void (*bad_proto) (struct ceph_connection *con); - /* there was some error on the socket (disconnect, whatever) */ void (*fault) (struct ceph_connection *con); @@ -53,6 +50,7 @@ struct ceph_messenger { struct ceph_entity_inst inst; /* my name+address */ struct ceph_entity_addr my_enc_addr; + atomic_t stopping; bool nocrc; /* @@ -80,7 +78,10 @@ struct ceph_msg { unsigned nr_pages; /* size of page array */ unsigned page_alignment; /* io offset in first page */ struct ceph_pagelist *pagelist; /* instead of pages */ + + struct ceph_connection *con; struct list_head list_head; + struct kref kref; struct bio *bio; /* instead of pages/pagelist */ struct bio *bio_iter; /* bio iterator */ @@ -106,23 +107,6 @@ struct ceph_msg_pos { #define MAX_DELAY_INTERVAL (5 * 60 * HZ) /* - * ceph_connection state bit flags - */ -#define LOSSYTX 0 /* we can close channel or drop messages on errors */ -#define CONNECTING 1 -#define NEGOTIATING 2 -#define KEEPALIVE_PENDING 3 -#define WRITE_PENDING 4 /* we have data ready to send */ -#define STANDBY 8 /* no outgoing messages, socket closed. we keep - * the ceph_connection around to maintain shared - * state with the peer. */ -#define CLOSED 10 /* we've closed the connection */ -#define SOCK_CLOSED 11 /* socket state changed to closed */ -#define OPENING 13 /* open connection w/ (possibly new) peer */ -#define DEAD 14 /* dead, about to kfree */ -#define BACKOFF 15 - -/* * A single connection with another host. * * We maintain a queue of outgoing messages, and some session state to @@ -131,18 +115,22 @@ struct ceph_msg_pos { */ struct ceph_connection { void *private; - atomic_t nref; const struct ceph_connection_operations *ops; struct ceph_messenger *msgr; + + atomic_t sock_state; struct socket *sock; - unsigned long state; /* connection state (see flags above) */ + struct ceph_entity_addr peer_addr; /* peer address */ + struct ceph_entity_addr peer_addr_for_me; + + unsigned long flags; + unsigned long state; const char *error_msg; /* error message, if any */ - struct ceph_entity_addr peer_addr; /* peer address */ struct ceph_entity_name peer_name; /* peer name */ - struct ceph_entity_addr peer_addr_for_me; + unsigned peer_features; u32 connect_seq; /* identify the most recent connection attempt for this connection, client */ @@ -207,24 +195,26 @@ extern int ceph_msgr_init(void); extern void ceph_msgr_exit(void); extern void ceph_msgr_flush(void); -extern struct ceph_messenger *ceph_messenger_create( - struct ceph_entity_addr *myaddr, - u32 features, u32 required); -extern void ceph_messenger_destroy(struct ceph_messenger *); +extern void ceph_messenger_init(struct ceph_messenger *msgr, + struct ceph_entity_addr *myaddr, + u32 supported_features, + u32 required_features, + bool nocrc); -extern void ceph_con_init(struct ceph_messenger *msgr, - struct ceph_connection *con); +extern void ceph_con_init(struct ceph_connection *con, void *private, + const struct ceph_connection_operations *ops, + struct ceph_messenger *msgr); extern void ceph_con_open(struct ceph_connection *con, + __u8 entity_type, __u64 entity_num, struct ceph_entity_addr *addr); extern bool ceph_con_opened(struct ceph_connection *con); extern void ceph_con_close(struct ceph_connection *con); extern void ceph_con_send(struct ceph_connection *con, struct ceph_msg *msg); -extern void ceph_con_revoke(struct ceph_connection *con, struct ceph_msg *msg); -extern void ceph_con_revoke_message(struct ceph_connection *con, - struct ceph_msg *msg); + +extern void ceph_msg_revoke(struct ceph_msg *msg); +extern void ceph_msg_revoke_incoming(struct ceph_msg *msg); + extern void ceph_con_keepalive(struct ceph_connection *con); -extern struct ceph_connection *ceph_con_get(struct ceph_connection *con); -extern void ceph_con_put(struct ceph_connection *con); extern struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags, bool can_fail); diff --git a/include/linux/ceph/mon_client.h b/include/linux/ceph/mon_client.h index 545f859..2113e38 100644 --- a/include/linux/ceph/mon_client.h +++ b/include/linux/ceph/mon_client.h @@ -70,7 +70,7 @@ struct ceph_mon_client { bool hunting; int cur_mon; /* last monitor i contacted */ unsigned long sub_sent, sub_renew_after; - struct ceph_connection *con; + struct ceph_connection con; bool have_fsid; /* pending generic requests */ diff --git a/include/linux/ceph/msgpool.h b/include/linux/ceph/msgpool.h index a362605f..09fa96b 100644 --- a/include/linux/ceph/msgpool.h +++ b/include/linux/ceph/msgpool.h @@ -11,10 +11,11 @@ struct ceph_msgpool { const char *name; mempool_t *pool; + int type; /* preallocated message type */ int front_len; /* preallocated payload size */ }; -extern int ceph_msgpool_init(struct ceph_msgpool *pool, +extern int ceph_msgpool_init(struct ceph_msgpool *pool, int type, int front_len, int size, bool blocking, const char *name); extern void ceph_msgpool_destroy(struct ceph_msgpool *pool); |