#define lustre_fid struct lu_fid
+/* Currently external applications can access this but in the
+ * future this will no longer be exposed for the user. Instead
+ * if you want to know if the library is initialized just call
+ * llapi_liblustreapi_initialized() which is now available. */
extern bool liblustreapi_initialized;
-
typedef void (*llapi_cb_t)(char *obd_type_name, char *obd_name, char *obd_uuid,
void *args);
typedef void (*llapi_log_callback_t)(enum llapi_message_level level, int err,
const char *fmt, va_list ap);
+static inline bool llapi_liblustreapi_initialized(void)
+{
+ return liblustreapi_initialized;
+}
/* the bottom three bits reserved for llapi_message_level */
#define LLAPI_MSG_MASK 0x00000007
void llapi_set_command_name(const char *cmd);
void llapi_clear_command_name(void);
-#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_HASH_TYPE | \
- VERBOSE_COMP_COUNT | VERBOSE_COMP_FLAGS | \
- VERBOSE_COMP_START | VERBOSE_COMP_END | \
- VERBOSE_COMP_ID | VERBOSE_MIRROR_COUNT)
+enum llapi_layout_verbose {
+ VERBOSE_STRIPE_COUNT = 0x1,
+ VERBOSE_STRIPE_SIZE = 0x2,
+ VERBOSE_STRIPE_OFFSET = 0x4,
+ VERBOSE_POOL = 0x8,
+ VERBOSE_DETAIL = 0x10,
+ VERBOSE_OBJID = 0x20,
+ VERBOSE_GENERATION = 0x40,
+ VERBOSE_MDTINDEX = 0x80,
+ VERBOSE_PATTERN = 0x100,
+ VERBOSE_COMP_COUNT = 0x200,
+ VERBOSE_COMP_FLAGS = 0x400,
+ VERBOSE_COMP_START = 0x800,
+ VERBOSE_COMP_END = 0x1000,
+ VERBOSE_COMP_ID = 0x2000,
+ VERBOSE_DFID = 0x4000,
+ VERBOSE_HASH_TYPE = 0x8000,
+ VERBOSE_MIRROR_COUNT = 0x10000,
+ VERBOSE_MIRROR_ID = 0x20000,
+ VERBOSE_DEFAULT = VERBOSE_STRIPE_COUNT | VERBOSE_STRIPE_SIZE |
+ VERBOSE_STRIPE_OFFSET | VERBOSE_POOL |
+ VERBOSE_OBJID | VERBOSE_GENERATION |
+ VERBOSE_PATTERN | VERBOSE_HASH_TYPE |
+ VERBOSE_COMP_COUNT | VERBOSE_COMP_FLAGS |
+ VERBOSE_COMP_START | VERBOSE_COMP_END |
+ VERBOSE_COMP_ID | VERBOSE_MIRROR_COUNT |
+ VERBOSE_MIRROR_ID
+};
+/* Compatibility with original names */
+#define VERBOSE_SIZE VERBOSE_STRIPE_SIZE
+#define VERBOSE_COUNT VERBOSE_STRIPE_COUNT
+#define VERBOSE_OFFSET VERBOSE_STRIPE_OFFSET
+#define VERBOSE_LAYOUT VERBOSE_PATTERN
struct find_param {
unsigned int fp_max_depth;
fp_comp_start_sign:2,
fp_comp_end_sign:2,
fp_comp_count_sign:2,
- fp_mdt_count_sign:2;
+ fp_mirror_count_sign:2,
+ fp_mirror_index_sign:2,
+ fp_mirror_id_sign:2,
+ fp_mdt_count_sign:2,
+ fp_blocks_sign:2;
unsigned long long fp_size;
unsigned long long fp_size_units;
fp_exclude_projid:1,
fp_check_comp_count:1,
fp_exclude_comp_count:1,
+ fp_check_mirror_count:1,
+ fp_exclude_mirror_count:1,
fp_check_comp_flags:1,
- fp_exclude_comp_flags:1,
+ fp_check_mirror_state: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_mirror_id:1,
+ fp_exclude_mirror_id:1,
+ fp_check_mirror_index:1,
+ fp_exclude_mirror_index: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 */
+ fp_yaml:1, /* output layout in YAML */
+ fp_check_blocks:1,
+ fp_exclude_blocks:1;
- int fp_verbose;
+ enum llapi_layout_verbose fp_verbose;
int fp_quiet;
/* regular expression */
__u32 fp_layout;
__u32 fp_comp_count;
+ __u32 fp_mirror_count;
__u32 fp_comp_flags;
+ __u32 fp_comp_neg_flags;
+ __u16 fp_mirror_state;
+ __u16 fp_mirror_neg_state;
__u32 fp_comp_id;
+ __u16 fp_mirror_id;
+ __u16 fp_mirror_index;
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;
+ unsigned long long fp_blocks;
+ unsigned long long fp_blocks_units;
/* In-process parameters. */
unsigned long fp_got_uuids:1,
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_param(const char *name, mode_t mode,
- const struct llapi_stripe_param *param);
+int llapi_dir_create(const char *name, mode_t mode,
+ const struct llapi_stripe_param *param);
int llapi_dir_create_pool(const char *name, int flags, int stripe_offset,
int stripe_count, int stripe_pattern,
const char *poolname);
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);
+int llapi_file_flush(int fd);
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);
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);
+int llapi_create_volatile_idx(const char *directory, int mdt_idx,
+ int open_flags);
+int llapi_create_volatile_param(const char *directory, int mdt_idx,
+ int open_flags, mode_t mode,
+ const struct llapi_stripe_param *stripe_param);
-static inline int llapi_create_volatile(char *directory, int mode)
+static inline int llapi_create_volatile(char *directory, int open_flags)
{
- return llapi_create_volatile_idx(directory, -1, mode);
+ return llapi_create_volatile_idx(directory, -1, open_flags);
}
int llapi_json_write_list(struct llapi_json_item_list **item_list, FILE *fp);
/* File lease */
-int llapi_lease_get(int fd, int mode);
+int llapi_lease_acquire(int fd, enum ll_lease_mode mode);
+int llapi_lease_release(int fd);
+int llapi_lease_set(int fd, const struct ll_ioc_lease *data);
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);
+int llapi_lease_get(int fd, int mode); /* obsoleted */
+int llapi_lease_put(int fd); /* obsoleted */
/* Group lock */
int llapi_group_lock(int fd, int gid);
/* llapi_layout user interface */
-static inline const char *lcm_flags_string(__u16 flags)
-{
- switch (flags & LCM_FL_FLR_MASK) {
- case LCM_FL_NOT_FLR:
- return "not_flr";
- case LCM_FL_RDONLY:
- return "ro";
- case LCM_FL_WRITE_PENDING:
- return "wp";
- case LCM_FL_SYNC_PENDING:
- return "sp";
- default:
- return "";
- }
-}
-
/**
* An array element storing component info to be resynced during mirror
* resynchronization.
/** Opaque data type abstracting the layout of a Lustre file. */
struct llapi_layout;
+int llapi_mirror_truncate(int fd, unsigned int id, off_t length);
+ssize_t llapi_mirror_write(int fd, unsigned int id, const void *buf,
+ size_t count, off_t pos);
+uint32_t llapi_mirror_find(struct llapi_layout *layout,
+ uint64_t file_start, uint64_t file_end,
+ uint64_t *endp);
int llapi_mirror_find_stale(struct llapi_layout *layout,
struct llapi_resync_comp *comp, size_t comp_size,
__u16 *mirror_ids, int ids_nr);
-ssize_t llapi_mirror_resync_one(int fd, struct llapi_layout *layout,
- uint32_t dst, uint64_t start, uint64_t end);
+int llapi_mirror_resync_many(int fd, struct llapi_layout *layout,
+ struct llapi_resync_comp *comp_array,
+ int comp_size, uint64_t start, uint64_t end);
/*
* Flags to control how layouts are retrieved.
*/
/**
* Return a pointer to a newly-allocated opaque data type containing the
- * layout for the file associated with Lustre file identifier string
- * \a fidstr. The string \a path must name a path within the
+ * layout for the file associated with Lustre file identifier
+ * \a fid. The string \a path must name a path within the
* filesystem that contains the file being looked up, such as the
* filesystem root. The returned pointer should be freed with
* llapi_layout_free() when it is no longer needed. Failure is
const struct lu_fid *fid,
uint32_t flags);
+enum llapi_layout_xattr_flags {
+ LLAPI_LXF_CHECK = 0x0001,
+ LLAPI_LXF_COPY = 0x0002,
+};
+
+/**
+ * Return a pointer to a newly-allocated opaque data type containing the
+ * layout for the file associated with extended attribute \a lov_xattr. The
+ * length of the extended attribute is \a lov_xattr_size. The \a lov_xattr
+ * should be raw xattr without being swapped, since this function will swap it
+ * properly. Thus, \a lov_xattr will be modified during the process. If the
+ * \a LLAPI_LXF_CHECK flag of \a flags is set, this function will check whether
+ * the objects count in lum is consistent with the stripe count in lum. This
+ * check only apply to regular file, so \a LLAPI_LXF_CHECK flag should be
+ * cleared if the xattr belongs to a directory. If the \a LLAPI_LXF_COPY flag
+ * of \a flags is set, this function will use a temporary buffer for byte
+ * swapping when necessary, leaving \a lov_xattr untouched. Otherwise, the byte
+ * swapping will be done to the \a lov_xattr buffer directly. The returned
+ * pointer should be freed with llapi_layout_free() when it is no longer
+ * needed. Failure is * indicated with a NULL return value and an appropriate
+ * error code stored in errno.
+ */
+struct llapi_layout *llapi_layout_get_by_xattr(void *lov_xattr,
+ ssize_t lov_xattr_size,
+ uint32_t flags);
+
/**
* Allocate a new layout. Use this when creating a new file with
* llapi_layout_file_create().
*/
int llapi_layout_flags_set(struct llapi_layout *layout, uint32_t flags);
int llapi_layout_flags_get(struct llapi_layout *layout, uint32_t *flags);
+const char *llapi_layout_flags_string(uint32_t flags);
+const __u16 llapi_layout_string_flags(char *string);
/**
* llapi_layout_mirror_count_get() - Get mirror count from the header of
const char *cfn_name;
} comp_flags_table[] = {
{ LCME_FL_INIT, "init" },
- { LCME_FL_PRIMARY, "primary" },
{ LCME_FL_STALE, "stale" },
+ { LCME_FL_PREF_RW, "prefer" },
{ LCME_FL_OFFLINE, "offline" },
- { LCME_FL_PREFERRED, "preferred" }
+ { LCME_FL_NOSYNC, "nosync" },
};
/**
*/
int llapi_layout_comp_add(struct llapi_layout *layout);
/**
+ * Adds a first component of a mirror to the existing composite layout.
+ */
+int llapi_layout_add_first_comp(struct llapi_layout *layout);
+/**
* Deletes the current layout component from the composite layout.
*/
int llapi_layout_comp_del(struct llapi_layout *layout);
* 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);
+int llapi_layout_file_comp_set(const char *path, uint32_t *ids, uint32_t *flags,
+ size_t count);
/**
* Check if the file layout is composite.
*/
bool llapi_layout_is_composite(struct llapi_layout *layout);
+enum {
+ LLAPI_LAYOUT_ITER_CONT = 0,
+ LLAPI_LAYOUT_ITER_STOP = 1,
+};
+
+/**
+ * Iteration callback function.
+ *
+ * \retval LLAPI_LAYOUT_ITER_CONT Iteration proceeds
+ * \retval LLAPI_LAYOUT_ITER_STOP Stop iteration
+ * \retval < 0 error code
+ */
+typedef int (*llapi_layout_iter_cb)(struct llapi_layout *layout, void *cbdata);
+
+/**
+ * Iterate all components in the corresponding layout
+ */
+int llapi_layout_comp_iterate(struct llapi_layout *layout,
+ llapi_layout_iter_cb cb, void *cbdata);
+
/**
* FLR: mirror operation APIs
*/
git://git.whamcloud.com / fs / lustre-release.git / blobdiff