diff options
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 2 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 2 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 86 | ||||
| -rw-r--r-- | include/linux/drbd_genl.h | 91 | ||||
| -rw-r--r-- | include/linux/genl_magic_func.h | 26 | ||||
| -rw-r--r-- | include/linux/genl_magic_struct.h | 8 |
6 files changed, 91 insertions, 124 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 44f77265d2b0..8655fcb82028 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1390,7 +1390,7 @@ extern int is_valid_ar_handle(struct drbd_request *, sector_t); /* drbd_nl.c */ -extern void drbd_set_res_opts_default(struct res_opts *r); +extern void drbd_set_res_opts_defaults(struct res_opts *r); extern int drbd_msg_put_info(const char *info); extern void drbd_suspend_io(struct drbd_conf *mdev); extern void drbd_resume_io(struct drbd_conf *mdev); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 427e959e4869..4ae3e7a99d7c 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2488,7 +2488,7 @@ struct drbd_tconn *conn_create(const char *name) drbd_thread_init(tconn, &tconn->worker, drbd_worker, "worker"); drbd_thread_init(tconn, &tconn->asender, drbd_asender, "asender"); - drbd_set_res_opts_default(&tconn->res_opts); + drbd_set_res_opts_defaults(&tconn->res_opts); down_write(&drbd_cfg_rwsem); kref_init(&tconn->kref); diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 7320ac00f0fb..f5732cf46c2f 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1090,77 +1090,6 @@ static bool should_set_defaults(struct genl_info *info) return 0 != (flags & DRBD_GENL_F_SET_DEFAULTS); } -/* Maybe we should we generate these functions - * from the drbd_genl.h magic as well? - * That way we would not "accidentally forget" to add defaults here. */ - -#define RESET_ARRAY_FIELD(field) do { \ - memset(field, 0, sizeof(field)); \ - field ## _len = 0; \ -} while (0) -void drbd_set_res_opts_default(struct res_opts *r) -{ - RESET_ARRAY_FIELD(r->cpu_mask); - r->on_no_data = DRBD_ON_NO_DATA_DEF; -} - -static void drbd_set_net_conf_defaults(struct net_conf *nc) -{ - /* Do NOT (re)set those fields marked as GENLA_F_INVARIANT - * in drbd_genl.h, they can only be change with disconnect/reconnect */ - RESET_ARRAY_FIELD(nc->shared_secret); - - RESET_ARRAY_FIELD(nc->cram_hmac_alg); - RESET_ARRAY_FIELD(nc->integrity_alg); - RESET_ARRAY_FIELD(nc->verify_alg); - RESET_ARRAY_FIELD(nc->csums_alg); -#undef RESET_ARRAY_FIELD - - nc->wire_protocol = DRBD_PROTOCOL_DEF; - nc->try_connect_int = DRBD_CONNECT_INT_DEF; - nc->timeout = DRBD_TIMEOUT_DEF; - nc->ping_int = DRBD_PING_INT_DEF; - nc->ping_timeo = DRBD_PING_TIMEO_DEF; - nc->sndbuf_size = DRBD_SNDBUF_SIZE_DEF; - nc->rcvbuf_size = DRBD_RCVBUF_SIZE_DEF; - nc->ko_count = DRBD_KO_COUNT_DEF; - nc->max_buffers = DRBD_MAX_BUFFERS_DEF; - nc->max_epoch_size = DRBD_MAX_EPOCH_SIZE_DEF; - nc->unplug_watermark = DRBD_UNPLUG_WATERMARK_DEF; - nc->after_sb_0p = DRBD_AFTER_SB_0P_DEF; - nc->after_sb_1p = DRBD_AFTER_SB_1P_DEF; - nc->after_sb_2p = DRBD_AFTER_SB_2P_DEF; - nc->rr_conflict = DRBD_RR_CONFLICT_DEF; - nc->on_congestion = DRBD_ON_CONGESTION_DEF; - nc->cong_fill = DRBD_CONG_FILL_DEF; - nc->cong_extents = DRBD_CONG_EXTENTS_DEF; - nc->two_primaries = 0; - nc->no_cork = 0; - nc->always_asbp = 0; - nc->use_rle = 0; -} - -static void drbd_set_disk_conf_defaults(struct disk_conf *dc) -{ - /* Do NOT (re)set those fields marked as GENLA_F_INVARIANT - * in drbd_genl.h, they can only be change with detach/reattach */ - dc->on_io_error = DRBD_ON_IO_ERROR_DEF; - dc->fencing = DRBD_FENCING_DEF; - dc->resync_rate = DRBD_RATE_DEF; - dc->resync_after = DRBD_AFTER_DEF; - dc->al_extents = DRBD_AL_EXTENTS_DEF; - dc->c_plan_ahead = DRBD_C_PLAN_AHEAD_DEF; - dc->c_delay_target = DRBD_C_DELAY_TARGET_DEF; - dc->c_fill_target = DRBD_C_FILL_TARGET_DEF; - dc->c_max_rate = DRBD_C_MAX_RATE_DEF; - dc->c_min_rate = DRBD_C_MIN_RATE_DEF; - dc->no_disk_barrier = 0; - dc->no_disk_flush = 0; - dc->no_disk_drain = 0; - dc->no_md_flush = 0; -} - - int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info) { enum drbd_ret_code retcode; @@ -1198,7 +1127,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info) memcpy(new_disk_conf, &mdev->ldev->dc, sizeof(*new_disk_conf)); if (should_set_defaults(info)) - drbd_set_disk_conf_defaults(new_disk_conf); + set_disk_conf_defaults(new_disk_conf); err = disk_conf_from_attrs_for_change(new_disk_conf, info); if (err) { @@ -1315,7 +1244,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) goto fail; } - drbd_set_disk_conf_defaults(&nbc->dc); + set_disk_conf_defaults(&nbc->dc); err = disk_conf_from_attrs(&nbc->dc, info); if (err) { @@ -1911,7 +1840,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info) *new_conf = *old_conf; if (should_set_defaults(info)) - drbd_set_net_conf_defaults(new_conf); + set_net_conf_defaults(new_conf); err = net_conf_from_attrs_for_change(new_conf, info); if (err) { @@ -2029,7 +1958,7 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info) goto fail; } - drbd_set_net_conf_defaults(new_conf); + set_net_conf_defaults(new_conf); err = net_conf_from_attrs(new_conf, info); if (err) { @@ -2301,6 +2230,11 @@ int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info) return 0; } +void drbd_set_res_opts_defaults(struct res_opts *r) +{ + return set_res_opts_defaults(r); +} + int drbd_adm_resource_opts(struct sk_buff *skb, struct genl_info *info) { enum drbd_ret_code retcode; @@ -2325,7 +2259,7 @@ int drbd_adm_resource_opts(struct sk_buff *skb, struct genl_info *info) res_opts = tconn->res_opts; if (should_set_defaults(info)) - drbd_set_res_opts_default(&res_opts); + set_res_opts_defaults(&res_opts); err = res_opts_from_attrs(&res_opts, info); if (err) { diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h index 10144d546a66..549800668cb9 100644 --- a/include/linux/drbd_genl.h +++ b/include/linux/drbd_genl.h @@ -110,63 +110,62 @@ GENL_struct(DRBD_NLA_DISK_CONF, 3, disk_conf, * but it won't propagate through the stack */ __u32_field(5, GENLA_F_MANDATORY | GENLA_F_INVARIANT, max_bio_bvecs) - __u32_field(6, GENLA_F_MANDATORY, on_io_error) - __u32_field(7, GENLA_F_MANDATORY, fencing) - - __u32_field(8, GENLA_F_MANDATORY, resync_rate) - __u32_field(9, GENLA_F_MANDATORY, resync_after) - __u32_field(10, GENLA_F_MANDATORY, al_extents) - __u32_field(11, GENLA_F_MANDATORY, c_plan_ahead) - __u32_field(12, GENLA_F_MANDATORY, c_delay_target) - __u32_field(13, GENLA_F_MANDATORY, c_fill_target) - __u32_field(14, GENLA_F_MANDATORY, c_max_rate) - __u32_field(15, GENLA_F_MANDATORY, c_min_rate) - - __flg_field(16, GENLA_F_MANDATORY, no_disk_barrier) - __flg_field(17, GENLA_F_MANDATORY, no_disk_flush) - __flg_field(18, GENLA_F_MANDATORY, no_disk_drain) - __flg_field(19, GENLA_F_MANDATORY, no_md_flush) - + __u32_field_def(6, GENLA_F_MANDATORY, on_io_error, DRBD_ON_IO_ERROR_DEF) + __u32_field_def(7, GENLA_F_MANDATORY, fencing, DRBD_FENCING_DEF) + + __u32_field_def(8, GENLA_F_MANDATORY, resync_rate, DRBD_RATE_DEF) + __u32_field_def(9, GENLA_F_MANDATORY, resync_after, DRBD_AFTER_DEF) + __u32_field_def(10, GENLA_F_MANDATORY, al_extents, DRBD_AL_EXTENTS_DEF) + __u32_field_def(11, GENLA_F_MANDATORY, c_plan_ahead, DRBD_C_PLAN_AHEAD_DEF) + __u32_field_def(12, GENLA_F_MANDATORY, c_delay_target, DRBD_C_DELAY_TARGET_DEF) + __u32_field_def(13, GENLA_F_MANDATORY, c_fill_target, DRBD_C_FILL_TARGET_DEF) + __u32_field_def(14, GENLA_F_MANDATORY, c_max_rate, DRBD_C_MAX_RATE_DEF) + __u32_field_def(15, GENLA_F_MANDATORY, c_min_rate, DRBD_C_MIN_RATE_DEF) + + __flg_field_def(16, GENLA_F_MANDATORY, no_disk_barrier, 0) + __flg_field_def(17, GENLA_F_MANDATORY, no_disk_flush, 0) + __flg_field_def(18, GENLA_F_MANDATORY, no_disk_drain, 0) + __flg_field_def(19, GENLA_F_MANDATORY, no_md_flush, 0) ) GENL_struct(DRBD_NLA_RESOURCE_OPTS, 4, res_opts, - __str_field(1, GENLA_F_MANDATORY, cpu_mask, 32) - __u32_field(2, GENLA_F_MANDATORY, on_no_data) + __str_field_def(1, GENLA_F_MANDATORY, cpu_mask, 32) + __u32_field_def(2, GENLA_F_MANDATORY, on_no_data, DRBD_ON_NO_DATA_DEF) ) GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf, __bin_field(1, GENLA_F_REQUIRED | GENLA_F_INVARIANT, my_addr, 128) __bin_field(2, GENLA_F_REQUIRED | GENLA_F_INVARIANT, peer_addr, 128) - __str_field(3, GENLA_F_MANDATORY | GENLA_F_SENSITIVE, + __str_field_def(3, GENLA_F_MANDATORY | GENLA_F_SENSITIVE, shared_secret, SHARED_SECRET_MAX) - __str_field(4, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX) - __str_field(5, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX) - __str_field(6, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX) - __str_field(7, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX) - __u32_field(8, GENLA_F_MANDATORY, wire_protocol) - __u32_field(9, GENLA_F_MANDATORY, try_connect_int) - __u32_field(10, GENLA_F_MANDATORY, timeout) - __u32_field(11, GENLA_F_MANDATORY, ping_int) - __u32_field(12, GENLA_F_MANDATORY, ping_timeo) - __u32_field(13, GENLA_F_MANDATORY, sndbuf_size) - __u32_field(14, GENLA_F_MANDATORY, rcvbuf_size) - __u32_field(15, GENLA_F_MANDATORY, ko_count) - __u32_field(16, GENLA_F_MANDATORY, max_buffers) - __u32_field(17, GENLA_F_MANDATORY, max_epoch_size) - __u32_field(18, GENLA_F_MANDATORY, unplug_watermark) - __u32_field(19, GENLA_F_MANDATORY, after_sb_0p) - __u32_field(20, GENLA_F_MANDATORY, after_sb_1p) - __u32_field(21, GENLA_F_MANDATORY, after_sb_2p) - __u32_field(22, GENLA_F_MANDATORY, rr_conflict) - __u32_field(23, GENLA_F_MANDATORY, on_congestion) - __u32_field(24, GENLA_F_MANDATORY, cong_fill) - __u32_field(25, GENLA_F_MANDATORY, cong_extents) - __flg_field(26, GENLA_F_MANDATORY, two_primaries) + __str_field_def(4, GENLA_F_MANDATORY, cram_hmac_alg, SHARED_SECRET_MAX) + __str_field_def(5, GENLA_F_MANDATORY, integrity_alg, SHARED_SECRET_MAX) + __str_field_def(6, GENLA_F_MANDATORY, verify_alg, SHARED_SECRET_MAX) + __str_field_def(7, GENLA_F_MANDATORY, csums_alg, SHARED_SECRET_MAX) + __u32_field_def(8, GENLA_F_MANDATORY, wire_protocol, DRBD_PROTOCOL_DEF) + __u32_field_def(9, GENLA_F_MANDATORY, try_connect_int, DRBD_CONNECT_INT_DEF) + __u32_field_def(10, GENLA_F_MANDATORY, timeout, DRBD_TIMEOUT_DEF) + __u32_field_def(11, GENLA_F_MANDATORY, ping_int, DRBD_PING_INT_DEF) + __u32_field_def(12, GENLA_F_MANDATORY, ping_timeo, DRBD_PING_TIMEO_DEF) + __u32_field_def(13, GENLA_F_MANDATORY, sndbuf_size, DRBD_SNDBUF_SIZE_DEF) + __u32_field_def(14, GENLA_F_MANDATORY, rcvbuf_size, DRBD_RCVBUF_SIZE_DEF) + __u32_field_def(15, GENLA_F_MANDATORY, ko_count, DRBD_KO_COUNT_DEF) + __u32_field_def(16, GENLA_F_MANDATORY, max_buffers, DRBD_MAX_BUFFERS_DEF) + __u32_field_def(17, GENLA_F_MANDATORY, max_epoch_size, DRBD_MAX_EPOCH_SIZE_DEF) + __u32_field_def(18, GENLA_F_MANDATORY, unplug_watermark, DRBD_UNPLUG_WATERMARK_DEF) + __u32_field_def(19, GENLA_F_MANDATORY, after_sb_0p, DRBD_AFTER_SB_0P_DEF) + __u32_field_def(20, GENLA_F_MANDATORY, after_sb_1p, DRBD_AFTER_SB_1P_DEF) + __u32_field_def(21, GENLA_F_MANDATORY, after_sb_2p, DRBD_AFTER_SB_2P_DEF) + __u32_field_def(22, GENLA_F_MANDATORY, rr_conflict, DRBD_RR_CONFLICT_DEF) + __u32_field_def(23, GENLA_F_MANDATORY, on_congestion, DRBD_ON_CONGESTION_DEF) + __u32_field_def(24, GENLA_F_MANDATORY, cong_fill, DRBD_CONG_FILL_DEF) + __u32_field_def(25, GENLA_F_MANDATORY, cong_extents, DRBD_CONG_EXTENTS_DEF) + __flg_field_def(26, GENLA_F_MANDATORY, two_primaries, 0) __flg_field(27, GENLA_F_MANDATORY | GENLA_F_INVARIANT, want_lose) - __flg_field(28, GENLA_F_MANDATORY, no_cork) - __flg_field(29, GENLA_F_MANDATORY, always_asbp) + __flg_field_def(28, GENLA_F_MANDATORY, no_cork, 0) + __flg_field_def(29, GENLA_F_MANDATORY, always_asbp, 0) __flg_field(30, GENLA_F_MANDATORY | GENLA_F_INVARIANT, dry_run) - __flg_field(31, GENLA_F_MANDATORY, use_rle) + __flg_field_def(31, GENLA_F_MANDATORY, use_rle, 0) ) GENL_struct(DRBD_NLA_SET_ROLE_PARMS, 6, set_role_parms, diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h index e458282a3728..e908f1c50355 100644 --- a/include/linux/genl_magic_func.h +++ b/include/linux/genl_magic_func.h @@ -427,6 +427,32 @@ static inline int s_name ## _to_unpriv_skb(struct sk_buff *skb, \ #include GENL_MAGIC_INCLUDE_FILE + +/* Functions for initializing structs to default values. */ + +#undef __field +#define __field(attr_nr, attr_flag, name, nla_type, type, __get, __put) +#undef __array +#define __array(attr_nr, attr_flag, name, nla_type, type, maxlen, __get, __put) +#undef __u32_field_def +#define __u32_field_def(attr_nr, attr_flag, name, default) \ + x->name = default; +#undef __flg_field_def +#define __flg_field_def(attr_nr, attr_flag, name, default) \ + x->name = default; +#undef __str_field_def +#define __str_field_def(attr_nr, attr_flag, name, maxlen) \ + memset(x->name, 0, sizeof(x->name)); \ + x->name ## _len = 0; +#undef GENL_struct +#define GENL_struct(tag_name, tag_number, s_name, s_fields) \ +static void set_ ## s_name ## _defaults(struct s_name *x) __attribute__((unused)); \ +static void set_ ## s_name ## _defaults(struct s_name *x) { \ +s_fields \ +} + +#include GENL_MAGIC_INCLUDE_FILE + #endif /* __KERNEL__ */ /* }}}1 */ diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h index 9a605b9ee834..f2c7cc7831df 100644 --- a/include/linux/genl_magic_struct.h +++ b/include/linux/genl_magic_struct.h @@ -107,6 +107,14 @@ enum { __array(attr_nr, attr_flag, name, NLA_BINARY, char, maxlen, \ nla_memcpy, NLA_PUT) +/* fields with default values */ +#define __flg_field_def(attr_nr, attr_flag, name, default) \ + __flg_field(attr_nr, attr_flag, name) +#define __u32_field_def(attr_nr, attr_flag, name, default) \ + __u32_field(attr_nr, attr_flag, name) +#define __str_field_def(attr_nr, attr_flag, name, maxlen) \ + __str_field(attr_nr, attr_flag, name, maxlen) + #define __nla_put_flag(skb, attrtype, value) \ do { \ if (value) \ |