X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flustre%2Flustreapi.h;h=5fc9f86f4fde81e3c494f1c1b44b77a6e23fa1ea;hb=125f98fb5c103a164a2f81615204798679f94fd7;hp=4164ce2bb2dabf440dbfc7ab0bc21627a98ec7f1;hpb=0754bc8f2623bea184111af216f7567608db35b6;p=fs%2Flustre-release.git diff --git a/lustre/include/lustre/lustreapi.h b/lustre/include/lustre/lustreapi.h index 4164ce2..5fc9f86 100644 --- a/lustre/include/lustre/lustreapi.h +++ b/lustre/include/lustre/lustreapi.h @@ -15,11 +15,7 @@ * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -27,7 +23,7 @@ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2015, Intel Corporation. + * Copyright (c) 2011, 2016, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -44,7 +40,15 @@ #include #include -#include +#include + +#ifndef LL_MAXQUOTAS +#define LL_MAXQUOTAS 3 +#endif + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0]))) +#endif extern bool liblustreapi_initialized; @@ -83,10 +87,11 @@ static inline const char *llapi_msg_level2str(enum llapi_message_level level) return levels[level]; } -extern void llapi_msg_set_level(int level); + +void llapi_msg_set_level(int level); int llapi_msg_get_level(void); -extern llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb); -extern llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb); +llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb); +llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb); void llapi_error(enum llapi_message_level level, int err, const char *fmt, ...) __attribute__((__format__(__printf__, 3, 4))); @@ -106,44 +111,51 @@ struct llapi_stripe_param { __u32 lsp_osts[0]; }; -extern int llapi_file_open_param(const char *name, int flags, mode_t mode, - const struct llapi_stripe_param *param); -extern int llapi_file_create(const char *name, unsigned long long stripe_size, - int stripe_offset, int stripe_count, - int stripe_pattern); -extern int llapi_file_open(const char *name, int flags, int mode, - unsigned long long stripe_size, int stripe_offset, - int stripe_count, int stripe_pattern); -extern int llapi_file_create_pool(const char *name, - unsigned long long stripe_size, - int stripe_offset, int stripe_count, - int stripe_pattern, char *pool_name); -extern int llapi_file_open_pool(const char *name, int flags, int mode, - unsigned long long stripe_size, - int stripe_offset, int stripe_count, - int stripe_pattern, char *pool_name); -extern int llapi_poollist(const char *name); -extern int llapi_get_poollist(const char *name, char **poollist, int list_size, - char *buffer, int buffer_size); -extern int llapi_get_poolmembers(const char *poolname, char **members, - int list_size, char *buffer, int buffer_size); -extern int llapi_file_get_stripe(const char *path, struct lov_user_md *lum); -#define HAVE_LLAPI_FILE_LOOKUP -extern int llapi_file_lookup(int dirfd, const char *name); - -#define VERBOSE_COUNT 0x1 -#define VERBOSE_SIZE 0x2 -#define VERBOSE_OFFSET 0x4 -#define VERBOSE_POOL 0x8 -#define VERBOSE_DETAIL 0x10 -#define VERBOSE_OBJID 0x20 -#define VERBOSE_GENERATION 0x40 -#define VERBOSE_MDTINDEX 0x80 -#define VERBOSE_LAYOUT 0x100 -#define VERBOSE_ALL (VERBOSE_COUNT | VERBOSE_SIZE | \ +int llapi_file_open_param(const char *name, int flags, mode_t mode, + const struct llapi_stripe_param *param); +int llapi_file_create(const char *name, unsigned long long stripe_size, + int stripe_offset, int stripe_count, int stripe_pattern); +int llapi_file_open(const char *name, int flags, int mode, + unsigned long long stripe_size, int stripe_offset, + int stripe_count, int stripe_pattern); +int llapi_file_create_pool(const char *name, unsigned long long stripe_size, + int stripe_offset, int stripe_count, + int stripe_pattern, char *pool_name); +int llapi_file_open_pool(const char *name, int flags, int mode, + unsigned long long stripe_size, int stripe_offset, + int stripe_count, int stripe_pattern, char *pool_name); +int llapi_poollist(const char *name); +int llapi_get_poollist(const char *name, char **poollist, int list_size, + char *buffer, int buffer_size); +int llapi_get_poolmembers(const char *poolname, char **members, int list_size, + char *buffer, int buffer_size); +int llapi_file_get_stripe(const char *path, struct lov_user_md *lum); +int llapi_file_lookup(int dirfd, const char *name); + +#define VERBOSE_COUNT 0x1 +#define VERBOSE_SIZE 0x2 +#define VERBOSE_OFFSET 0x4 +#define VERBOSE_POOL 0x8 +#define VERBOSE_DETAIL 0x10 +#define VERBOSE_OBJID 0x20 +#define VERBOSE_GENERATION 0x40 +#define VERBOSE_MDTINDEX 0x80 +#define VERBOSE_LAYOUT 0x100 +#define VERBOSE_COMP_COUNT 0x200 +#define VERBOSE_COMP_FLAGS 0x400 +#define VERBOSE_COMP_START 0x800 +#define VERBOSE_COMP_END 0x1000 +#define VERBOSE_COMP_ID 0x2000 +#define VERBOSE_DFID 0x4000 +#define VERBOSE_HASH_TYPE 0x8000 +#define VERBOSE_MIRROR_COUNT 0x10000 +#define VERBOSE_DEFAULT (VERBOSE_COUNT | VERBOSE_SIZE | \ VERBOSE_OFFSET | VERBOSE_POOL | \ - VERBOSE_OBJID | VERBOSE_GENERATION |\ - VERBOSE_LAYOUT) + VERBOSE_OBJID | VERBOSE_GENERATION | \ + VERBOSE_LAYOUT | VERBOSE_HASH_TYPE | \ + VERBOSE_COMP_COUNT | VERBOSE_COMP_FLAGS | \ + VERBOSE_COMP_START | VERBOSE_COMP_END | \ + VERBOSE_COMP_ID | VERBOSE_MIRROR_COUNT) struct find_param { unsigned int fp_max_depth; @@ -162,11 +174,15 @@ struct find_param { /* these need to be signed values */ int fp_size_sign:2, fp_stripe_size_sign:2, - fp_stripe_count_sign:2; + fp_stripe_count_sign:2, + fp_comp_start_sign:2, + fp_comp_end_sign:2, + fp_comp_count_sign:2, + fp_mdt_count_sign:2; unsigned long long fp_size; unsigned long long fp_size_units; - unsigned long fp_zero_end:1, + unsigned long long fp_zero_end:1, fp_recursive:1, fp_exclude_pattern:1, fp_exclude_type:1, @@ -192,7 +208,24 @@ struct find_param { fp_check_layout:1, fp_exclude_layout:1, fp_get_default_lmv:1, /* Get default LMV */ - fp_migrate:1; + fp_migrate:1, + fp_check_projid:1, + fp_exclude_projid:1, + fp_check_comp_count:1, + fp_exclude_comp_count:1, + fp_check_comp_flags:1, + fp_exclude_comp_flags:1, + fp_check_comp_start:1, + fp_exclude_comp_start:1, + fp_check_comp_end:1, + fp_exclude_comp_end:1, + fp_check_comp_id:1, + fp_exclude_comp_id:1, + fp_check_mdt_count:1, + fp_exclude_mdt_count:1, + fp_check_hash_type:1, + fp_exclude_hash_type:1, + fp_yaml:1; /* output layout in YAML */ int fp_verbose; int fp_quiet; @@ -226,107 +259,117 @@ struct find_param { unsigned long long fp_stripe_count; __u32 fp_layout; + __u32 fp_comp_count; + __u32 fp_comp_flags; + __u32 fp_comp_id; + unsigned long long fp_comp_start; + unsigned long long fp_comp_start_units; + unsigned long long fp_comp_end; + unsigned long long fp_comp_end_units; + unsigned long long fp_mdt_count; + unsigned fp_projid; + /* In-process parameters. */ unsigned long fp_got_uuids:1, fp_obds_printed:1; unsigned int fp_depth; + unsigned int fp_hash_type; }; -extern int llapi_ostlist(char *path, struct find_param *param); -extern int llapi_uuid_match(char *real_uuid, char *search_uuid); -extern int llapi_getstripe(char *path, struct find_param *param); -extern int llapi_find(char *path, struct find_param *param); - -extern int llapi_file_fget_mdtidx(int fd, int *mdtidx); -extern int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset, - int stripe_count, int stripe_pattern, - const char *pool_name); -extern int llapi_dir_create_pool(const char *name, int flags, int stripe_offset, - int stripe_count, int stripe_pattern, - const char *poolname); +int llapi_ostlist(char *path, struct find_param *param); +int llapi_uuid_match(char *real_uuid, char *search_uuid); +int llapi_getstripe(char *path, struct find_param *param); +int llapi_find(char *path, struct find_param *param); + +int llapi_file_fget_mdtidx(int fd, int *mdtidx); +int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset, + int stripe_count, int stripe_pattern, + const char *pool_name); +int llapi_dir_create_pool(const char *name, int flags, int stripe_offset, + int stripe_count, int stripe_pattern, + const char *poolname); int llapi_direntry_remove(char *dname); -extern int llapi_obd_statfs(char *path, __u32 type, __u32 index, - struct obd_statfs *stat_buf, - struct obd_uuid *uuid_buf); -extern int llapi_ping(char *obd_type, char *obd_name); -extern int llapi_target_check(int num_types, char **obd_types, char *dir); -extern int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid); -extern int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lmv_uuid); -extern int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_uuid); -extern int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count); -extern int llapi_lmv_get_uuids(int fd, struct obd_uuid *uuidp, int *mdt_count); -extern int llapi_is_lustre_mnttype(const char *type); -extern int llapi_search_ost(char *fsname, char *poolname, char *ostname); -extern int llapi_get_obd_count(char *mnt, int *count, int is_mdt); -extern int llapi_parse_size(const char *optarg, unsigned long long *size, - unsigned long long *size_units, int bytes_spec); -extern int llapi_search_mounts(const char *pathname, int index, - char *mntdir, char *fsname); -extern int llapi_search_fsname(const char *pathname, char *fsname); -extern int llapi_getname(const char *path, char *buf, size_t size); - -extern int llapi_search_rootpath(char *pathname, const char *fsname); -extern int llapi_nodemap_exists(const char *name); -extern int llapi_migrate_mdt(char *path, struct find_param *param); -extern int llapi_mv(char *path, struct find_param *param); + +int llapi_obd_fstatfs(int fd, __u32 type, __u32 index, + struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf); +int llapi_obd_statfs(char *path, __u32 type, __u32 index, + struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf); +int llapi_ping(char *obd_type, char *obd_name); +int llapi_target_check(int num_types, char **obd_types, char *dir); +int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid); +int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lmv_uuid); +int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_uuid); +int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count); +int llapi_lmv_get_uuids(int fd, struct obd_uuid *uuidp, int *mdt_count); +int llapi_is_lustre_mnttype(const char *type); +int llapi_search_ost(char *fsname, char *poolname, char *ostname); +int llapi_get_obd_count(char *mnt, int *count, int is_mdt); +int llapi_parse_size(const char *optarg, unsigned long long *size, + unsigned long long *size_units, int bytes_spec); +int llapi_search_mounts(const char *pathname, int index, char *mntdir, + char *fsname); +int llapi_search_fsname(const char *pathname, char *fsname); +int llapi_getname(const char *path, char *buf, size_t size); +int llapi_search_fileset(const char *pathname, char *fileset); + +int llapi_search_rootpath(char *pathname, const char *fsname); +int llapi_nodemap_exists(const char *name); +int llapi_migrate_mdt(char *path, struct find_param *param); +int llapi_mv(char *path, struct find_param *param); struct mntent; #define HAVE_LLAPI_IS_LUSTRE_MNT -extern int llapi_is_lustre_mnt(struct mntent *mnt); -extern int llapi_quotactl(char *mnt, struct if_quotactl *qctl); -extern int llapi_target_iterate(int type_num, char **obd_type, void *args, - llapi_cb_t cb); -extern int llapi_get_connect_flags(const char *mnt, __u64 *flags); -extern int llapi_lsetfacl(int argc, char *argv[]); -extern int llapi_lgetfacl(int argc, char *argv[]); -extern int llapi_rsetfacl(int argc, char *argv[]); -extern int llapi_rgetfacl(int argc, char *argv[]); -extern int llapi_cp(int argc, char *argv[]); -extern int llapi_ls(int argc, char *argv[]); -extern int llapi_fid2path(const char *device, const char *fidstr, char *path, - int pathlen, long long *recno, int *linkno); -extern int llapi_path2fid(const char *path, lustre_fid *fid); -extern int llapi_get_mdt_index_by_fid(int fd, const lustre_fid *fid, - int *mdt_index); -extern int llapi_fd2fid(const int fd, lustre_fid *fid); +int llapi_is_lustre_mnt(struct mntent *mnt); +int llapi_quotactl(char *mnt, struct if_quotactl *qctl); +int llapi_target_iterate(int type_num, char **obd_type, void *args, + llapi_cb_t cb); +int llapi_get_connect_flags(const char *mnt, __u64 *flags); +int llapi_cp(int argc, char *argv[]); +int llapi_ls(int argc, char *argv[]); +int llapi_fid2path(const char *device, const char *fidstr, char *path, + int pathlen, long long *recno, int *linkno); +int llapi_path2fid(const char *path, lustre_fid *fid); +int llapi_get_mdt_index_by_fid(int fd, const lustre_fid *fid, int *mdt_index); +int llapi_fd2fid(int fd, lustre_fid *fid); /* get FID of parent dir + the related name of entry in this parent dir */ -extern int llapi_path2parent(const char *path, unsigned int linkno, - lustre_fid *parent_fid, char *name, - size_t name_size); -extern int llapi_fd2parent(int fd, unsigned int linkno, - lustre_fid *parent_fid, char *name, - size_t name_size); -extern int llapi_chomp_string(char *buf); -extern int llapi_open_by_fid(const char *dir, const lustre_fid *fid, - int open_flags); - -extern int llapi_get_version(char *buffer, int buffer_size, char **version); -extern int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags); -extern int llapi_hsm_state_get_fd(int fd, struct hsm_user_state *hus); -extern int llapi_hsm_state_get(const char *path, struct hsm_user_state *hus); -extern int llapi_hsm_state_set_fd(int fd, __u64 setmask, __u64 clearmask, - __u32 archive_id); -extern int llapi_hsm_state_set(const char *path, __u64 setmask, __u64 clearmask, - __u32 archive_id); -extern int llapi_hsm_register_event_fifo(const char *path); -extern int llapi_hsm_unregister_event_fifo(const char *path); -extern void llapi_hsm_log_error(enum llapi_message_level level, int _rc, - const char *fmt, va_list args); - -extern int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize); -extern int llapi_create_volatile_idx(char *directory, int idx, int mode); +int llapi_path2parent(const char *path, unsigned int linkno, + lustre_fid *parent_fid, char *name, size_t name_size); +int llapi_fd2parent(int fd, unsigned int linkno, lustre_fid *parent_fid, + char *name, size_t name_size); +int llapi_chomp_string(char *buf); +int llapi_open_by_fid(const char *dir, const lustre_fid *fid, int open_flags); + +int llapi_get_version_string(char *version, unsigned int version_size); +/* llapi_get_version() is deprecated, use llapi_get_version_string() instead */ +int llapi_get_version(char *buffer, int buffer_size, char **version) + __attribute__((deprecated)); +int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags); +extern int llapi_get_ost_layout_version(int fd, __u32 *layout_version); +int llapi_hsm_state_get_fd(int fd, struct hsm_user_state *hus); +int llapi_hsm_state_get(const char *path, struct hsm_user_state *hus); +int llapi_hsm_state_set_fd(int fd, __u64 setmask, __u64 clearmask, + __u32 archive_id); +int llapi_hsm_state_set(const char *path, __u64 setmask, __u64 clearmask, + __u32 archive_id); +int llapi_hsm_register_event_fifo(const char *path); +int llapi_hsm_unregister_event_fifo(const char *path); +void llapi_hsm_log_error(enum llapi_message_level level, int _rc, + const char *fmt, va_list args); + +int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize); +int llapi_create_volatile_idx(char *directory, int idx, int mode); + static inline int llapi_create_volatile(char *directory, int mode) { return llapi_create_volatile_idx(directory, -1, mode); } -extern int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2, - int gid, __u64 flags); -extern int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, - __u64 flags); -extern int llapi_swap_layouts(const char *path1, const char *path2, - __u64 dv1, __u64 dv2, __u64 flags); +int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2, + int gid, __u64 flags); +int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags); +int llapi_swap_layouts(const char *path1, const char *path2, __u64 dv1, + __u64 dv2, __u64 flags); /* Changelog interface. priv is private state, managed internally by these * functions */ @@ -336,14 +379,15 @@ extern int llapi_swap_layouts(const char *path1, const char *path2, * converted to extended format in the lustre api to ease changelog analysis. */ #define HAVE_CHANGELOG_EXTEND_REC 1 -extern int llapi_changelog_start(void **priv, enum changelog_send_flag flags, - const char *mdtname, long long startrec); -extern int llapi_changelog_fini(void **priv); -extern int llapi_changelog_recv(void *priv, struct changelog_rec **rech); -extern int llapi_changelog_free(struct changelog_rec **rech); +int llapi_changelog_start(void **priv, enum changelog_send_flag flags, + const char *mdtname, long long startrec); +int llapi_changelog_fini(void **priv); +int llapi_changelog_recv(void *priv, struct changelog_rec **rech); +int llapi_changelog_free(struct changelog_rec **rech); +int llapi_changelog_get_fd(void *priv); /* Allow records up to endrec to be destroyed; requires registered id. */ -extern int llapi_changelog_clear(const char *mdtname, const char *idstr, - long long endrec); +int llapi_changelog_clear(const char *mdtname, const char *idstr, + long long endrec); /* HSM copytool interface. * priv is private state, managed internally by these functions @@ -351,57 +395,57 @@ extern int llapi_changelog_clear(const char *mdtname, const char *idstr, struct hsm_copytool_private; struct hsm_copyaction_private; -extern int llapi_hsm_copytool_register(struct hsm_copytool_private **priv, - const char *mnt, int archive_count, - int *archives, int rfd_flags); -extern int llapi_hsm_copytool_unregister(struct hsm_copytool_private **priv); -extern int llapi_hsm_copytool_get_fd(struct hsm_copytool_private *ct); -extern int llapi_hsm_copytool_recv(struct hsm_copytool_private *priv, - struct hsm_action_list **hal, int *msgsize); -extern int llapi_hsm_action_begin(struct hsm_copyaction_private **phcp, - const struct hsm_copytool_private *ct, - const struct hsm_action_item *hai, - int restore_mdt_index, int restore_open_flags, - bool is_error); -extern int llapi_hsm_action_end(struct hsm_copyaction_private **phcp, - const struct hsm_extent *he, - int hp_flags, int errval); -extern int llapi_hsm_action_progress(struct hsm_copyaction_private *hcp, - const struct hsm_extent *he, __u64 total, - int hp_flags); -extern int llapi_hsm_action_get_dfid(const struct hsm_copyaction_private *hcp, - lustre_fid *fid); -extern int llapi_hsm_action_get_fd(const struct hsm_copyaction_private *hcp); -extern int llapi_hsm_import(const char *dst, int archive, const struct stat *st, - unsigned long long stripe_size, int stripe_offset, - int stripe_count, int stripe_pattern, - char *pool_name, lustre_fid *newfid); +int llapi_hsm_copytool_register(struct hsm_copytool_private **priv, + const char *mnt, int archive_count, + int *archives, int rfd_flags); +int llapi_hsm_copytool_unregister(struct hsm_copytool_private **priv); +int llapi_hsm_copytool_get_fd(struct hsm_copytool_private *ct); +int llapi_hsm_copytool_recv(struct hsm_copytool_private *priv, + struct hsm_action_list **hal, int *msgsize); +int llapi_hsm_action_begin(struct hsm_copyaction_private **phcp, + const struct hsm_copytool_private *ct, + const struct hsm_action_item *hai, + int restore_mdt_index, int restore_open_flags, + bool is_error); +int llapi_hsm_action_end(struct hsm_copyaction_private **phcp, + const struct hsm_extent *he, int hp_flags, int errval); +int llapi_hsm_action_progress(struct hsm_copyaction_private *hcp, + const struct hsm_extent *he, __u64 total, + int hp_flags); +int llapi_hsm_action_get_dfid(const struct hsm_copyaction_private *hcp, + lustre_fid *fid); +int llapi_hsm_action_get_fd(const struct hsm_copyaction_private *hcp); +int llapi_hsm_import(const char *dst, int archive, const struct stat *st, + unsigned long long stripe_size, int stripe_offset, + int stripe_count, int stripe_pattern, char *pool_name, + lustre_fid *newfid); /* HSM user interface */ -extern struct hsm_user_request *llapi_hsm_user_request_alloc(int itemcount, - int data_len); -extern int llapi_hsm_request(const char *path, - const struct hsm_user_request *request); -extern int llapi_hsm_current_action(const char *path, - struct hsm_current_action *hca); +struct hsm_user_request *llapi_hsm_user_request_alloc(int itemcount, + int data_len); +int llapi_hsm_request(const char *path, const struct hsm_user_request *request); +int llapi_hsm_current_action(const char *path, struct hsm_current_action *hca); /* JSON handling */ -extern int llapi_json_init_list(struct llapi_json_item_list **item_list); -extern int llapi_json_destroy_list(struct llapi_json_item_list **item_list); -extern int llapi_json_add_item(struct llapi_json_item_list **item_list, - char *key, __u32 type, void *val); -extern int llapi_json_write_list(struct llapi_json_item_list **item_list, - FILE *fp); +int llapi_json_init_list(struct llapi_json_item_list **item_list); +int llapi_json_destroy_list(struct llapi_json_item_list **item_list); +int llapi_json_add_item(struct llapi_json_item_list **item_list, char *key, + __u32 type, void *val); +int llapi_json_write_list(struct llapi_json_item_list **item_list, FILE *fp); /* File lease */ -extern int llapi_lease_get(int fd, int mode); -extern int llapi_lease_check(int fd); -extern int llapi_lease_put(int fd); +int llapi_lease_get(int fd, int mode); +int llapi_lease_check(int fd); +int llapi_lease_put(int fd); +extern int llapi_lease_get_ext(int fd, struct ll_ioc_lease *data); /* Group lock */ int llapi_group_lock(int fd, int gid); int llapi_group_unlock(int fd, int gid); +/* Ladvise */ +int llapi_ladvise(int fd, unsigned long long flags, int num_advise, + struct llapi_lu_ladvise *ladvise); /** @} llapi */ /* llapi_layout user interface */ @@ -458,6 +502,19 @@ struct llapi_layout *llapi_layout_alloc(void); */ void llapi_layout_free(struct llapi_layout *layout); +/** + * llapi_layout_merge() - Merge a composite layout into another one. + * @dst_layout: Destination composite layout. + * @src_layout: Source composite layout. + * + * This function copies all of the components from @src_layout and + * appends them to @dst_layout. + * + * Return: 0 on success or -1 on failure. + */ +int llapi_layout_merge(struct llapi_layout **dst_layout, + const struct llapi_layout *src_layout); + /** Not a valid stripe size, offset, or RAID pattern. */ #define LLAPI_LAYOUT_INVALID 0x1000000000000001ULL @@ -479,7 +536,18 @@ void llapi_layout_free(struct llapi_layout *layout); * stored using RAID0. That is, data will be split evenly and without * redundancy across all OSTs in the layout. */ -#define LLAPI_LAYOUT_RAID0 0 +#define LLAPI_LAYOUT_RAID0 0ULL +#define LLAPI_LAYOUT_MDT 2ULL + +/** +* The layout includes a specific set of OSTs on which to allocate. +*/ +#define LLAPI_LAYOUT_SPECIFIC 0x2000000000000000ULL + +/** + * A valid ost index should be less than maximum valid OST index (UINT_MAX). + */ +#define LLAPI_LAYOUT_IDX_MAX 0x00000000FFFFFFFFULL /** * Flags to modify how layouts are retrieved. @@ -669,6 +737,143 @@ int llapi_layout_file_open(const char *path, int open_flags, mode_t mode, int llapi_layout_file_create(const char *path, int open_flags, int mode, const struct llapi_layout *layout); +/** + * Set flags to the header of component layout. + */ +int llapi_layout_flags_set(struct llapi_layout *layout, uint32_t flags); +int llapi_layout_flags_get(struct llapi_layout *layout, uint32_t *flags); + +/** + * llapi_layout_mirror_count_get() - Get mirror count from the header of + * a layout. + * @layout: Layout to get mirror count from. + * @count: Returned mirror count value. + * + * This function gets mirror count from the header of a layout. + * + * Return: 0 on success or -1 on failure. + */ +int llapi_layout_mirror_count_get(struct llapi_layout *layout, + uint16_t *count); + +/** + * llapi_layout_mirror_count_set() - Set mirror count to the header of a layout. + * @layout: Layout to set mirror count in. + * @count: Mirror count value to be set. + * + * This function sets mirror count to the header of a layout. + * + * Return: 0 on success or -1 on failure. + */ +int llapi_layout_mirror_count_set(struct llapi_layout *layout, + uint16_t count); + +/** + * Fetch the start and end offset of the current layout component. + */ +int llapi_layout_comp_extent_get(const struct llapi_layout *layout, + uint64_t *start, uint64_t *end); +/** + * Set the extent of current layout component. + */ +int llapi_layout_comp_extent_set(struct llapi_layout *layout, + uint64_t start, uint64_t end); + +/* PFL component flags table */ +static const struct comp_flag_name { + enum lov_comp_md_entry_flags cfn_flag; + const char *cfn_name; +} comp_flags_table[] = { + { LCME_FL_INIT, "init" }, + /* For now, only "init" is supported + { LCME_FL_PRIMARY, "primary" }, + { LCME_FL_STALE, "stale" }, + { LCME_FL_OFFLINE, "offline" }, + { LCME_FL_PREFERRED, "preferred" } + */ +}; + +/** + * Gets the attribute flags of the current component. + */ +int llapi_layout_comp_flags_get(const struct llapi_layout *layout, + uint32_t *flags); +/** + * Sets the specified flags of the current component leaving other flags as-is. + */ +int llapi_layout_comp_flags_set(struct llapi_layout *layout, uint32_t flags); +/** + * Clears the flags specified in the flags leaving other flags as-is. + */ +int llapi_layout_comp_flags_clear(struct llapi_layout *layout, uint32_t flags); +/** + * Fetches the file-unique component ID of the current layout component. + */ +int llapi_layout_comp_id_get(const struct llapi_layout *layout, uint32_t *id); +/** + * Fetches the mirror ID of the current layout component. + */ +int llapi_layout_mirror_id_get(const struct llapi_layout *layout, uint32_t *id); +/** + * Adds one component to the existing composite or plain layout. + */ +int llapi_layout_comp_add(struct llapi_layout *layout); +/** + * Deletes the current layout component from the composite layout. + */ +int llapi_layout_comp_del(struct llapi_layout *layout); + +enum llapi_layout_comp_use { + LLAPI_LAYOUT_COMP_USE_FIRST = 1, + LLAPI_LAYOUT_COMP_USE_LAST = 2, + LLAPI_LAYOUT_COMP_USE_NEXT = 3, + LLAPI_LAYOUT_COMP_USE_PREV = 4, +}; + +/** + * Set the currently active component to the specified component ID. + */ +int llapi_layout_comp_use_id(struct llapi_layout *layout, uint32_t id); +/** + * Select the currently active component at the specified position. + */ +int llapi_layout_comp_use(struct llapi_layout *layout, uint32_t pos); +/** + * Add layout components to an existing file. + */ +int llapi_layout_file_comp_add(const char *path, + const struct llapi_layout *layout); +/** + * Delete component(s) by the specified component id or flags. + */ +int llapi_layout_file_comp_del(const char *path, uint32_t id, uint32_t flags); +/** + * Change flags or other parameters of the component(s) by component ID of an + * existing file. The component to be modified is specified by the + * comp->lcme_id value, which must be an unique component ID. The new + * attributes are passed in by @comp and @valid is used to specify which + * attributes in the component are going to be changed. + */ +int llapi_layout_file_comp_set(const char *path, + const struct llapi_layout *comp, + uint32_t valid); +/** + * Check if the file layout is composite. + */ +bool llapi_layout_is_composite(struct llapi_layout *layout); + +/** + * FLR: mirror operation APIs + */ +int llapi_mirror_set(int fd, unsigned int id); +int llapi_mirror_clear(int fd); +ssize_t llapi_mirror_read(int fd, unsigned int id, + void *buf, size_t count, off_t pos); +ssize_t llapi_mirror_copy_many(int fd, unsigned int src, + unsigned int *dst, size_t count); +int llapi_mirror_copy(int fd, unsigned int src, unsigned int dst, + off_t pos, size_t count); + /** @} llapi */ #endif