diff options
Diffstat (limited to 'collectors/ebpf.plugin/ebpf_vfs.c')
| -rw-r--r-- | collectors/ebpf.plugin/ebpf_vfs.c | 2522 |
1 files changed, 2522 insertions, 0 deletions
diff --git a/collectors/ebpf.plugin/ebpf_vfs.c b/collectors/ebpf.plugin/ebpf_vfs.c new file mode 100644 index 00000000..354901c9 --- /dev/null +++ b/collectors/ebpf.plugin/ebpf_vfs.c @@ -0,0 +1,2522 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include <sys/resource.h> + +#include "ebpf.h" +#include "ebpf_vfs.h" + +static char *vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_END] = { "delete", "read", "write", + "fsync", "open", "create" }; +static char *vfs_id_names[NETDATA_KEY_PUBLISH_VFS_END] = { "vfs_unlink", "vfs_read", "vfs_write", + "vfs_fsync", "vfs_open", "vfs_create"}; + +static netdata_idx_t *vfs_hash_values = NULL; +static netdata_syscall_stat_t vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_END]; +static netdata_publish_syscall_t vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_END]; +netdata_publish_vfs_t *vfs_vector = NULL; + +static ebpf_local_maps_t vfs_maps[] = {{.name = "tbl_vfs_pid", .internal_input = ND_EBPF_DEFAULT_PID_SIZE, + .user_input = 0, .type = NETDATA_EBPF_MAP_RESIZABLE | NETDATA_EBPF_MAP_PID, + .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED, +#ifdef LIBBPF_MAJOR_VERSION + .map_type = BPF_MAP_TYPE_PERCPU_HASH +#endif + }, + {.name = "tbl_vfs_stats", .internal_input = NETDATA_VFS_COUNTER, + .user_input = 0, .type = NETDATA_EBPF_MAP_STATIC, + .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED, +#ifdef LIBBPF_MAJOR_VERSION + .map_type = BPF_MAP_TYPE_PERCPU_ARRAY +#endif + }, + {.name = "vfs_ctrl", .internal_input = NETDATA_CONTROLLER_END, + .user_input = 0, + .type = NETDATA_EBPF_MAP_CONTROLLER, + .map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED, +#ifdef LIBBPF_MAJOR_VERSION + .map_type = BPF_MAP_TYPE_PERCPU_ARRAY +#endif + }, + {.name = NULL, .internal_input = 0, .user_input = 0, +#ifdef LIBBPF_MAJOR_VERSION + .map_type = BPF_MAP_TYPE_PERCPU_ARRAY +#endif + }}; + +struct config vfs_config = { .first_section = NULL, + .last_section = NULL, + .mutex = NETDATA_MUTEX_INITIALIZER, + .index = { .avl_tree = { .root = NULL, .compar = appconfig_section_compare }, + .rwlock = AVL_LOCK_INITIALIZER } }; + +netdata_ebpf_targets_t vfs_targets[] = { {.name = "vfs_write", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_writev", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_read", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_readv", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_unlink", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_fsync", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_open", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "vfs_create", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = "release_task", .mode = EBPF_LOAD_TRAMPOLINE}, + {.name = NULL, .mode = EBPF_LOAD_TRAMPOLINE}}; + +#ifdef NETDATA_DEV_MODE +int vfs_disable_priority; +#endif + +#ifdef LIBBPF_MAJOR_VERSION +/** + * Disable probe + * + * Disable all probes to use exclusively another method. + * + * @param obj is the main structure for bpf objects + */ +static void ebpf_vfs_disable_probes(struct vfs_bpf *obj) +{ + bpf_program__set_autoload(obj->progs.netdata_vfs_write_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_write_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_writev_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_writev_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_read_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_read_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_readv_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_readv_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_unlink_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_unlink_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_fsync_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_fsync_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_open_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_open_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_create_kprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_create_kretprobe, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_release_task_kprobe, false); +} + +/* + * Disable trampoline + * + * Disable all trampoline to use exclusively another method. + * + * @param obj is the main structure for bpf objects. + */ +static void ebpf_vfs_disable_trampoline(struct vfs_bpf *obj) +{ + bpf_program__set_autoload(obj->progs.netdata_vfs_write_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_write_fexit, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_writev_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_writev_fexit, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_read_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_read_fexit, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_readv_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_readv_fexit, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_unlink_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_fsync_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_fsync_fexit, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_open_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_open_fexit, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_create_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_release_task_fentry, false); +} + +/** + * Set trampoline target + * + * Set the targets we will monitor. + * + * @param obj is the main structure for bpf objects. + */ +static void ebpf_vfs_set_trampoline_target(struct vfs_bpf *obj) +{ + bpf_program__set_attach_target(obj->progs.netdata_vfs_write_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_WRITE].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_write_fexit, 0, vfs_targets[NETDATA_EBPF_VFS_WRITE].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_writev_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_WRITEV].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_writev_fexit, 0, vfs_targets[NETDATA_EBPF_VFS_WRITEV].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_read_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_READ].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_read_fexit, 0, vfs_targets[NETDATA_EBPF_VFS_READ].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_readv_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_READV].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_readv_fexit, 0, vfs_targets[NETDATA_EBPF_VFS_READV].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_unlink_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_UNLINK].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_fsync_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_FSYNC].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_fsync_fexit, 0, vfs_targets[NETDATA_EBPF_VFS_FSYNC].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_open_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_OPEN].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_open_fexit, 0, vfs_targets[NETDATA_EBPF_VFS_OPEN].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_create_fentry, 0, vfs_targets[NETDATA_EBPF_VFS_CREATE].name); + + bpf_program__set_attach_target(obj->progs.netdata_vfs_release_task_fentry, 0, EBPF_COMMON_FNCT_CLEAN_UP); +} + +/** + * Attach Probe + * + * Attach probes to target + * + * @param obj is the main structure for bpf objects. + * + * @return It returns 0 on success and -1 otherwise. + */ +static int ebpf_vfs_attach_probe(struct vfs_bpf *obj) +{ + obj->links.netdata_vfs_write_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_write_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_WRITE].name); + int ret = libbpf_get_error(obj->links.netdata_vfs_write_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_write_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_write_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_WRITE].name); + ret = libbpf_get_error(obj->links.netdata_vfs_write_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_writev_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_writev_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_WRITEV].name); + ret = libbpf_get_error(obj->links.netdata_vfs_writev_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_writev_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_writev_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_WRITEV].name); + ret = libbpf_get_error(obj->links.netdata_vfs_writev_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_read_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_read_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_READ].name); + ret = libbpf_get_error(obj->links.netdata_vfs_read_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_read_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_read_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_READ].name); + ret = libbpf_get_error(obj->links.netdata_vfs_read_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_readv_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_readv_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_READV].name); + ret = libbpf_get_error(obj->links.netdata_vfs_readv_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_readv_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_readv_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_READV].name); + ret = libbpf_get_error(obj->links.netdata_vfs_readv_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_unlink_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_unlink_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_UNLINK].name); + ret = libbpf_get_error(obj->links.netdata_vfs_unlink_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_unlink_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_unlink_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_UNLINK].name); + ret = libbpf_get_error(obj->links.netdata_vfs_unlink_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_fsync_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_fsync_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_FSYNC].name); + ret = libbpf_get_error(obj->links.netdata_vfs_fsync_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_fsync_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_fsync_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_FSYNC].name); + ret = libbpf_get_error(obj->links.netdata_vfs_fsync_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_open_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_open_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_OPEN].name); + ret = libbpf_get_error(obj->links.netdata_vfs_open_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_open_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_open_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_OPEN].name); + ret = libbpf_get_error(obj->links.netdata_vfs_open_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_create_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_create_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_CREATE].name); + ret = libbpf_get_error(obj->links.netdata_vfs_create_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_create_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_create_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_CREATE].name); + ret = libbpf_get_error(obj->links.netdata_vfs_create_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_fsync_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_fsync_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_FSYNC].name); + ret = libbpf_get_error(obj->links.netdata_vfs_fsync_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_fsync_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_fsync_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_FSYNC].name); + ret = libbpf_get_error(obj->links.netdata_vfs_fsync_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_open_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_open_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_OPEN].name); + ret = libbpf_get_error(obj->links.netdata_vfs_open_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_open_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_open_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_OPEN].name); + ret = libbpf_get_error(obj->links.netdata_vfs_open_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_create_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_create_kprobe, false, + vfs_targets[NETDATA_EBPF_VFS_CREATE].name); + ret = libbpf_get_error(obj->links.netdata_vfs_create_kprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_create_kretprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_create_kretprobe, true, + vfs_targets[NETDATA_EBPF_VFS_CREATE].name); + ret = libbpf_get_error(obj->links.netdata_vfs_create_kretprobe); + if (ret) + return -1; + + obj->links.netdata_vfs_release_task_kprobe = bpf_program__attach_kprobe(obj->progs.netdata_vfs_release_task_fentry, + true, + EBPF_COMMON_FNCT_CLEAN_UP); + ret = libbpf_get_error(obj->links.netdata_vfs_release_task_kprobe); + if (ret) + return -1; + + return 0; +} + +/** + * Adjust Size + * + * Resize maps according input from users. + * + * @param obj is the main structure for bpf objects. + * @param em structure with configuration + */ +static void ebpf_vfs_adjust_map(struct vfs_bpf *obj, ebpf_module_t *em) +{ + ebpf_update_map_size(obj->maps.tbl_vfs_pid, &vfs_maps[NETDATA_VFS_PID], + em, bpf_map__name(obj->maps.tbl_vfs_pid)); + + ebpf_update_map_type(obj->maps.tbl_vfs_pid, &vfs_maps[NETDATA_VFS_PID]); + ebpf_update_map_type(obj->maps.tbl_vfs_stats, &vfs_maps[NETDATA_VFS_ALL]); + ebpf_update_map_type(obj->maps.vfs_ctrl, &vfs_maps[NETDATA_VFS_CTRL]); +} + +/** + * Set hash tables + * + * Set the values for maps according the value given by kernel. + * + * @param obj is the main structure for bpf objects. + */ +static void ebpf_vfs_set_hash_tables(struct vfs_bpf *obj) +{ + vfs_maps[NETDATA_VFS_ALL].map_fd = bpf_map__fd(obj->maps.tbl_vfs_stats); + vfs_maps[NETDATA_VFS_PID].map_fd = bpf_map__fd(obj->maps.tbl_vfs_pid); + vfs_maps[NETDATA_VFS_CTRL].map_fd = bpf_map__fd(obj->maps.vfs_ctrl); +} + +/** + * Disable Release Task + * + * Disable release task when apps is not enabled. + * + * @param obj is the main structure for bpf objects. + */ +static void ebpf_vfs_disable_release_task(struct vfs_bpf *obj) +{ + bpf_program__set_autoload(obj->progs.netdata_vfs_release_task_fentry, false); + bpf_program__set_autoload(obj->progs.netdata_vfs_release_task_kprobe, false); +} + +/** + * Load and attach + * + * Load and attach the eBPF code in kernel. + * + * @param obj is the main structure for bpf objects. + * @param em structure with configuration + * + * @return it returns 0 on success and -1 otherwise + */ +static inline int ebpf_vfs_load_and_attach(struct vfs_bpf *obj, ebpf_module_t *em) +{ + netdata_ebpf_targets_t *mt = em->targets; + netdata_ebpf_program_loaded_t test = mt[NETDATA_EBPF_VFS_WRITE].mode; + + if (test == EBPF_LOAD_TRAMPOLINE) { + ebpf_vfs_disable_probes(obj); + + ebpf_vfs_set_trampoline_target(obj); + } else { + ebpf_vfs_disable_trampoline(obj); + } + + ebpf_vfs_adjust_map(obj, em); + + if (!em->apps_charts && !em->cgroup_charts) + ebpf_vfs_disable_release_task(obj); + + int ret = vfs_bpf__load(obj); + if (ret) { + return ret; + } + + ret = (test == EBPF_LOAD_TRAMPOLINE) ? vfs_bpf__attach(obj) : ebpf_vfs_attach_probe(obj); + if (!ret) { + ebpf_vfs_set_hash_tables(obj); + + ebpf_update_controller(vfs_maps[NETDATA_VFS_CTRL].map_fd, em); + } + + return ret; +} +#endif + +/***************************************************************** + * + * FUNCTIONS TO CLOSE THE THREAD + * + *****************************************************************/ + +static void ebpf_obsolete_specific_vfs_charts(char *type, ebpf_module_t *em); + +/** + * Obsolete services + * + * Obsolete all service charts created + * + * @param em a pointer to `struct ebpf_module` + */ +static void ebpf_obsolete_vfs_services(ebpf_module_t *em) +{ + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_FILE_DELETED, + "", + "Files deleted", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20065, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, + "", + "Write to disk", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20066, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, + "", + "Fails to write", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20067, + em->update_every); + } + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_READ_CALLS, + "", + "Read from disk", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20068, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, + "", + "Fails to read", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20069, + em->update_every); + } + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, + "", + "Bytes written on disk", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20070, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_READ_BYTES, + "", + "Bytes read from disk", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20071, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_FSYNC, + "", + "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20072, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, + "", + "Sync error", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20073, + em->update_every); + } + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_OPEN, + "", + "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20074, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, + "", + "Open error", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20075, + em->update_every); + } + + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_CREATE, + "", + "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20076, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY, + NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, + "", + "Create error", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + NULL, + 20077, + em->update_every); + } +} + +/** + * Obsolete cgroup chart + * + * Send obsolete for all charts created before to close. + * + * @param em a pointer to `struct ebpf_module` + */ +static inline void ebpf_obsolete_vfs_cgroup_charts(ebpf_module_t *em) { + pthread_mutex_lock(&mutex_cgroup_shm); + + ebpf_obsolete_vfs_services(em); + + ebpf_cgroup_target_t *ect; + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (ect->systemd) + continue; + + ebpf_obsolete_specific_vfs_charts(ect->name, em); + } + pthread_mutex_unlock(&mutex_cgroup_shm); +} + +/** + * Obsolette apps charts + * + * Obsolete apps charts. + * + * @param em a pointer to the structure with the default values. + */ +void ebpf_obsolete_vfs_apps_charts(struct ebpf_module *em) +{ + int order = 20275; + struct ebpf_target *w; + int update_every = em->update_every; + for (w = apps_groups_root_target; w; w = w->next) { + if (unlikely(!(w->charts_created & (1<<EBPF_MODULE_VFS_IDX)))) + continue; + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_unlink", + "Files deleted.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_unlink", + order++, + update_every); + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_write", + "Write to disk.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_write", + order++, + update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_write_error", + "Fails to write.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_write_error", + order++, + update_every); + } + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_read", + "Read from disk.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_read", + order++, + update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_read_error", + "Fails to read.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_read_error", + order++, + update_every); + } + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_write_bytes", + "Bytes written on disk.", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_write_bytes", + order++, + update_every); + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_read_bytes", + "Bytes read from disk.", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_read_bytes", + order++, + update_every); + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_fsync", + "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_fsync", + order++, + update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_fsync_error", + "Fails to sync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_fsync_error", + order++, + update_every); + } + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_open", + "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_open", + order++, + update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_open_error", + "Fails to open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_open_error", + order++, + update_every); + } + + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_create", + "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_create", + order++, + update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_create_error", + "Fails to create.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_create_error", + order++, + update_every); + } + w->charts_created &= ~(1<<EBPF_MODULE_VFS_IDX); + } +} + +/** + * Obsolete global + * + * Obsolete global charts created by thread. + * + * @param em a pointer to `struct ebpf_module` + */ +static void ebpf_obsolete_vfs_global(ebpf_module_t *em) +{ + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FILE_CLEAN_COUNT, + "", + "Remove files", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_CLEAN, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FILE_IO_COUNT, + "", + "Calls to IO", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_COUNT, + em->update_every); + + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_IO_FILE_BYTES, + "", + "Bytes written and read", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_BYTES, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FILE_ERR_COUNT, + "", + "Fails to write or read", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EBYTES, + em->update_every); + } + + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FSYNC, + "", + "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_FSYNC, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FSYNC_ERR, + "", + "Fails to synchronize", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EFSYNC, + em->update_every); + } + + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_OPEN, + "", + "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_OPEN, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_OPEN_ERR, + "", + "Fails to open a file", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EOPEN, + em->update_every); + } + + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_CREATE, + "", + "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_CREATE, + em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_CREATE_ERR, + "", + "Fails to create a file.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, + NULL, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_ECREATE, + em->update_every); + } +} + +/** + * Exit + * + * Cancel thread and exit. + * + * @param ptr thread data. +**/ +static void ebpf_vfs_exit(void *ptr) +{ + ebpf_module_t *em = (ebpf_module_t *)ptr; + + if (em->enabled == NETDATA_THREAD_EBPF_FUNCTION_RUNNING) { + pthread_mutex_lock(&lock); + if (em->cgroup_charts) { + ebpf_obsolete_vfs_cgroup_charts(em); + fflush(stdout); + } + + if (em->apps_charts & NETDATA_EBPF_APPS_FLAG_CHART_CREATED) { + ebpf_obsolete_vfs_apps_charts(em); + } + + ebpf_obsolete_vfs_global(em); + +#ifdef NETDATA_DEV_MODE + if (ebpf_aral_vfs_pid) + ebpf_statistic_obsolete_aral_chart(em, vfs_disable_priority); +#endif + + fflush(stdout); + pthread_mutex_unlock(&lock); + } + + ebpf_update_kernel_memory_with_vector(&plugin_statistics, em->maps, EBPF_ACTION_STAT_REMOVE); + +#ifdef LIBBPF_MAJOR_VERSION + if (vfs_bpf_obj) { + vfs_bpf__destroy(vfs_bpf_obj); + vfs_bpf_obj = NULL; + } +#endif + if (em->objects) { + ebpf_unload_legacy_code(em->objects, em->probe_links); + em->objects = NULL; + em->probe_links = NULL; + } + + pthread_mutex_lock(&ebpf_exit_cleanup); + em->enabled = NETDATA_THREAD_EBPF_STOPPED; + ebpf_update_stats(&plugin_statistics, em); + pthread_mutex_unlock(&ebpf_exit_cleanup); +} + +/***************************************************************** + * + * FUNCTIONS WITH THE MAIN LOOP + * + *****************************************************************/ + +/** + * Send data to Netdata calling auxiliary functions. + * + * @param em the structure with thread information +*/ +static void ebpf_vfs_send_data(ebpf_module_t *em) +{ + netdata_publish_vfs_common_t pvc; + + pvc.write = (long)vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_WRITE].bytes; + pvc.read = (long)vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_READ].bytes; + + write_count_chart(NETDATA_VFS_FILE_CLEAN_COUNT, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], 1); + + write_count_chart(NETDATA_VFS_FILE_IO_COUNT, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2); + + if (em->mode < MODE_ENTRY) { + write_err_chart(NETDATA_VFS_FILE_ERR_COUNT, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2); + } + + write_io_chart(NETDATA_VFS_IO_FILE_BYTES, NETDATA_FILESYSTEM_FAMILY, vfs_id_names[NETDATA_KEY_PUBLISH_VFS_WRITE], + (long long)pvc.write, vfs_id_names[NETDATA_KEY_PUBLISH_VFS_READ], (long long)pvc.read); + + write_count_chart(NETDATA_VFS_FSYNC, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1); + + if (em->mode < MODE_ENTRY) { + write_err_chart(NETDATA_VFS_FSYNC_ERR, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1); + } + + write_count_chart(NETDATA_VFS_OPEN, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1); + + if (em->mode < MODE_ENTRY) { + write_err_chart(NETDATA_VFS_OPEN_ERR, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1); + } + + write_count_chart(NETDATA_VFS_CREATE, NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1); + + if (em->mode < MODE_ENTRY) { + write_err_chart( + NETDATA_VFS_CREATE_ERR, + NETDATA_FILESYSTEM_FAMILY, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], + 1); + } +} + +/** + * Read the hash table and store data to allocated vectors. + * + * @param stats vector used to read data from control table. + * @param maps_per_core do I need to read all cores? + */ +static void ebpf_vfs_read_global_table(netdata_idx_t *stats, int maps_per_core) +{ + netdata_idx_t res[NETDATA_VFS_COUNTER]; + ebpf_read_global_table_stats(res, + vfs_hash_values, + vfs_maps[NETDATA_VFS_ALL].map_fd, + maps_per_core, + NETDATA_KEY_CALLS_VFS_WRITE, + NETDATA_VFS_COUNTER); + + ebpf_read_global_table_stats(stats, + vfs_hash_values, + vfs_maps[NETDATA_VFS_CTRL].map_fd, + maps_per_core, + NETDATA_CONTROLLER_PID_TABLE_ADD, + NETDATA_CONTROLLER_END); + + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].ncall = res[NETDATA_KEY_CALLS_VFS_UNLINK]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].ncall = res[NETDATA_KEY_CALLS_VFS_READ] + + res[NETDATA_KEY_CALLS_VFS_READV]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].ncall = res[NETDATA_KEY_CALLS_VFS_WRITE] + + res[NETDATA_KEY_CALLS_VFS_WRITEV]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].ncall = res[NETDATA_KEY_CALLS_VFS_FSYNC]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].ncall = res[NETDATA_KEY_CALLS_VFS_OPEN]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].ncall = res[NETDATA_KEY_CALLS_VFS_CREATE]; + + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].nerr = res[NETDATA_KEY_ERROR_VFS_UNLINK]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].nerr = res[NETDATA_KEY_ERROR_VFS_READ] + + res[NETDATA_KEY_ERROR_VFS_READV]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].nerr = res[NETDATA_KEY_ERROR_VFS_WRITE] + + res[NETDATA_KEY_ERROR_VFS_WRITEV]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].nerr = res[NETDATA_KEY_ERROR_VFS_FSYNC]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].nerr = res[NETDATA_KEY_ERROR_VFS_OPEN]; + vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].nerr = res[NETDATA_KEY_ERROR_VFS_CREATE]; + + vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_WRITE].bytes = (uint64_t)res[NETDATA_KEY_BYTES_VFS_WRITE] + + (uint64_t)res[NETDATA_KEY_BYTES_VFS_WRITEV]; + vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_READ].bytes = (uint64_t)res[NETDATA_KEY_BYTES_VFS_READ] + + (uint64_t)res[NETDATA_KEY_BYTES_VFS_READV]; +} + +/** + * Sum PIDs + * + * Sum values for all targets. + * + * @param swap output structure + * @param root link list with structure to be used + */ +static void ebpf_vfs_sum_pids(netdata_publish_vfs_t *vfs, struct ebpf_pid_on_target *root) +{ + netdata_publish_vfs_t accumulator; + memset(&accumulator, 0, sizeof(accumulator)); + + while (root) { + int32_t pid = root->pid; + netdata_publish_vfs_t *w = vfs_pid[pid]; + if (w) { + accumulator.write_call += w->write_call; + accumulator.writev_call += w->writev_call; + accumulator.read_call += w->read_call; + accumulator.readv_call += w->readv_call; + accumulator.unlink_call += w->unlink_call; + accumulator.fsync_call += w->fsync_call; + accumulator.open_call += w->open_call; + accumulator.create_call += w->create_call; + + accumulator.write_bytes += w->write_bytes; + accumulator.writev_bytes += w->writev_bytes; + accumulator.read_bytes += w->read_bytes; + accumulator.readv_bytes += w->readv_bytes; + + accumulator.write_err += w->write_err; + accumulator.writev_err += w->writev_err; + accumulator.read_err += w->read_err; + accumulator.readv_err += w->readv_err; + accumulator.unlink_err += w->unlink_err; + accumulator.fsync_err += w->fsync_err; + accumulator.open_err += w->open_err; + accumulator.create_err += w->create_err; + } + root = root->next; + } + + // These conditions were added, because we are using incremental algorithm + vfs->write_call = (accumulator.write_call >= vfs->write_call) ? accumulator.write_call : vfs->write_call; + vfs->writev_call = (accumulator.writev_call >= vfs->writev_call) ? accumulator.writev_call : vfs->writev_call; + vfs->read_call = (accumulator.read_call >= vfs->read_call) ? accumulator.read_call : vfs->read_call; + vfs->readv_call = (accumulator.readv_call >= vfs->readv_call) ? accumulator.readv_call : vfs->readv_call; + vfs->unlink_call = (accumulator.unlink_call >= vfs->unlink_call) ? accumulator.unlink_call : vfs->unlink_call; + vfs->fsync_call = (accumulator.fsync_call >= vfs->fsync_call) ? accumulator.fsync_call : vfs->fsync_call; + vfs->open_call = (accumulator.open_call >= vfs->open_call) ? accumulator.open_call : vfs->open_call; + vfs->create_call = (accumulator.create_call >= vfs->create_call) ? accumulator.create_call : vfs->create_call; + + vfs->write_bytes = (accumulator.write_bytes >= vfs->write_bytes) ? accumulator.write_bytes : vfs->write_bytes; + vfs->writev_bytes = (accumulator.writev_bytes >= vfs->writev_bytes) ? accumulator.writev_bytes : vfs->writev_bytes; + vfs->read_bytes = (accumulator.read_bytes >= vfs->read_bytes) ? accumulator.read_bytes : vfs->read_bytes; + vfs->readv_bytes = (accumulator.readv_bytes >= vfs->readv_bytes) ? accumulator.readv_bytes : vfs->readv_bytes; + + vfs->write_err = (accumulator.write_err >= vfs->write_err) ? accumulator.write_err : vfs->write_err; + vfs->writev_err = (accumulator.writev_err >= vfs->writev_err) ? accumulator.writev_err : vfs->writev_err; + vfs->read_err = (accumulator.read_err >= vfs->read_err) ? accumulator.read_err : vfs->read_err; + vfs->readv_err = (accumulator.readv_err >= vfs->readv_err) ? accumulator.readv_err : vfs->readv_err; + vfs->unlink_err = (accumulator.unlink_err >= vfs->unlink_err) ? accumulator.unlink_err : vfs->unlink_err; + vfs->fsync_err = (accumulator.fsync_err >= vfs->fsync_err) ? accumulator.fsync_err : vfs->fsync_err; + vfs->open_err = (accumulator.open_err >= vfs->open_err) ? accumulator.open_err : vfs->open_err; + vfs->create_err = (accumulator.create_err >= vfs->create_err) ? accumulator.create_err : vfs->create_err; +} + +/** + * Send data to Netdata calling auxiliary functions. + * + * @param em the structure with thread information + * @param root the target list. + */ +void ebpf_vfs_send_apps_data(ebpf_module_t *em, struct ebpf_target *root) +{ + struct ebpf_target *w; + for (w = root; w; w = w->next) { + if (unlikely(!(w->charts_created & (1<<EBPF_MODULE_VFS_IDX)))) + continue; + + ebpf_vfs_sum_pids(&w->vfs, w->root_pid); + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_unlink"); + write_chart_dimension("calls", w->vfs.unlink_call); + ebpf_write_end_chart(); + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_write"); + write_chart_dimension("calls", w->vfs.write_call + w->vfs.writev_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_write_error"); + write_chart_dimension("calls", w->vfs.write_err + w->vfs.writev_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_read"); + write_chart_dimension("calls", w->vfs.read_call + w->vfs.readv_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_read_error"); + write_chart_dimension("calls", w->vfs.read_err + w->vfs.readv_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_write_bytes"); + write_chart_dimension("writes", w->vfs.write_bytes + w->vfs.writev_bytes); + ebpf_write_end_chart(); + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_read_bytes"); + write_chart_dimension("reads", w->vfs.read_bytes + w->vfs.readv_bytes); + ebpf_write_end_chart(); + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_fsync"); + write_chart_dimension("calls", w->vfs.fsync_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_fsync_error"); + write_chart_dimension("calls", w->vfs.fsync_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_open"); + write_chart_dimension("calls", w->vfs.open_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_open_error"); + write_chart_dimension("calls", w->vfs.open_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_create"); + write_chart_dimension("calls", w->vfs.create_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_APP_FAMILY, w->clean_name, "_ebpf_call_vfs_create_error"); + write_chart_dimension("calls", w->vfs.create_err); + ebpf_write_end_chart(); + } + } +} + +/** + * Apps Accumulator + * + * Sum all values read from kernel and store in the first address. + * + * @param out the vector with read values. + */ +static void vfs_apps_accumulator(netdata_publish_vfs_t *out, int maps_per_core) +{ + int i, end = (maps_per_core) ? ebpf_nprocs : 1; + netdata_publish_vfs_t *total = &out[0]; + for (i = 1; i < end; i++) { + netdata_publish_vfs_t *w = &out[i]; + + total->write_call += w->write_call; + total->writev_call += w->writev_call; + total->read_call += w->read_call; + total->readv_call += w->readv_call; + total->unlink_call += w->unlink_call; + + total->write_bytes += w->write_bytes; + total->writev_bytes += w->writev_bytes; + total->read_bytes += w->read_bytes; + total->readv_bytes += w->readv_bytes; + + total->write_err += w->write_err; + total->writev_err += w->writev_err; + total->read_err += w->read_err; + total->readv_err += w->readv_err; + total->unlink_err += w->unlink_err; + } +} + +/** + * Fill PID + * + * Fill PID structures + * + * @param current_pid pid that we are collecting data + * @param out values read from hash tables; + */ +static void vfs_fill_pid(uint32_t current_pid, netdata_publish_vfs_t *publish) +{ + netdata_publish_vfs_t *curr = vfs_pid[current_pid]; + if (!curr) { + curr = ebpf_vfs_get(); + vfs_pid[current_pid] = curr; + } + + memcpy(curr, &publish[0], sizeof(netdata_publish_vfs_t)); +} + +/** + * Read the hash table and store data to allocated vectors. + */ +static void ebpf_vfs_read_apps(int maps_per_core) +{ + struct ebpf_pid_stat *pids = ebpf_root_of_pids; + netdata_publish_vfs_t *vv = vfs_vector; + int fd = vfs_maps[NETDATA_VFS_PID].map_fd; + size_t length = sizeof(netdata_publish_vfs_t); + if (maps_per_core) + length *= ebpf_nprocs; + + while (pids) { + uint32_t key = pids->pid; + + if (bpf_map_lookup_elem(fd, &key, vv)) { + pids = pids->next; + continue; + } + + vfs_apps_accumulator(vv, maps_per_core); + + vfs_fill_pid(key, vv); + + // We are cleaning to avoid passing data read from one process to other. + memset(vv, 0, length); + + pids = pids->next; + } +} + +/** + * Update cgroup + * + * Update cgroup data based in PID. + * + * @param maps_per_core do I need to read all cores? + */ +static void read_update_vfs_cgroup(int maps_per_core) +{ + ebpf_cgroup_target_t *ect ; + netdata_publish_vfs_t *vv = vfs_vector; + int fd = vfs_maps[NETDATA_VFS_PID].map_fd; + size_t length = sizeof(netdata_publish_vfs_t); + if (maps_per_core) + length *= ebpf_nprocs; + + pthread_mutex_lock(&mutex_cgroup_shm); + for (ect = ebpf_cgroup_pids; ect; ect = ect->next) { + struct pid_on_target2 *pids; + for (pids = ect->pids; pids; pids = pids->next) { + int pid = pids->pid; + netdata_publish_vfs_t *out = &pids->vfs; + if (likely(vfs_pid) && vfs_pid[pid]) { + netdata_publish_vfs_t *in = vfs_pid[pid]; + + memcpy(out, in, sizeof(netdata_publish_vfs_t)); + } else { + memset(vv, 0, length); + if (!bpf_map_lookup_elem(fd, &pid, vv)) { + vfs_apps_accumulator(vv, maps_per_core); + + memcpy(out, vv, sizeof(netdata_publish_vfs_t)); + } + } + } + } + pthread_mutex_unlock(&mutex_cgroup_shm); +} + +/** + * Sum PIDs + * + * Sum values for all targets. + * + * @param vfs structure used to store data + * @param pids input data + */ +static void ebpf_vfs_sum_cgroup_pids(netdata_publish_vfs_t *vfs, struct pid_on_target2 *pids) + { + netdata_publish_vfs_t accumulator; + memset(&accumulator, 0, sizeof(accumulator)); + + while (pids) { + netdata_publish_vfs_t *w = &pids->vfs; + + accumulator.write_call += w->write_call; + accumulator.writev_call += w->writev_call; + accumulator.read_call += w->read_call; + accumulator.readv_call += w->readv_call; + accumulator.unlink_call += w->unlink_call; + accumulator.fsync_call += w->fsync_call; + accumulator.open_call += w->open_call; + accumulator.create_call += w->create_call; + + accumulator.write_bytes += w->write_bytes; + accumulator.writev_bytes += w->writev_bytes; + accumulator.read_bytes += w->read_bytes; + accumulator.readv_bytes += w->readv_bytes; + + accumulator.write_err += w->write_err; + accumulator.writev_err += w->writev_err; + accumulator.read_err += w->read_err; + accumulator.readv_err += w->readv_err; + accumulator.unlink_err += w->unlink_err; + accumulator.fsync_err += w->fsync_err; + accumulator.open_err += w->open_err; + accumulator.create_err += w->create_err; + + pids = pids->next; + } + + // These conditions were added, because we are using incremental algorithm + vfs->write_call = (accumulator.write_call >= vfs->write_call) ? accumulator.write_call : vfs->write_call; + vfs->writev_call = (accumulator.writev_call >= vfs->writev_call) ? accumulator.writev_call : vfs->writev_call; + vfs->read_call = (accumulator.read_call >= vfs->read_call) ? accumulator.read_call : vfs->read_call; + vfs->readv_call = (accumulator.readv_call >= vfs->readv_call) ? accumulator.readv_call : vfs->readv_call; + vfs->unlink_call = (accumulator.unlink_call >= vfs->unlink_call) ? accumulator.unlink_call : vfs->unlink_call; + vfs->fsync_call = (accumulator.fsync_call >= vfs->fsync_call) ? accumulator.fsync_call : vfs->fsync_call; + vfs->open_call = (accumulator.open_call >= vfs->open_call) ? accumulator.open_call : vfs->open_call; + vfs->create_call = (accumulator.create_call >= vfs->create_call) ? accumulator.create_call : vfs->create_call; + + vfs->write_bytes = (accumulator.write_bytes >= vfs->write_bytes) ? accumulator.write_bytes : vfs->write_bytes; + vfs->writev_bytes = (accumulator.writev_bytes >= vfs->writev_bytes) ? accumulator.writev_bytes : vfs->writev_bytes; + vfs->read_bytes = (accumulator.read_bytes >= vfs->read_bytes) ? accumulator.read_bytes : vfs->read_bytes; + vfs->readv_bytes = (accumulator.readv_bytes >= vfs->readv_bytes) ? accumulator.readv_bytes : vfs->readv_bytes; + + vfs->write_err = (accumulator.write_err >= vfs->write_err) ? accumulator.write_err : vfs->write_err; + vfs->writev_err = (accumulator.writev_err >= vfs->writev_err) ? accumulator.writev_err : vfs->writev_err; + vfs->read_err = (accumulator.read_err >= vfs->read_err) ? accumulator.read_err : vfs->read_err; + vfs->readv_err = (accumulator.readv_err >= vfs->readv_err) ? accumulator.readv_err : vfs->readv_err; + vfs->unlink_err = (accumulator.unlink_err >= vfs->unlink_err) ? accumulator.unlink_err : vfs->unlink_err; + vfs->fsync_err = (accumulator.fsync_err >= vfs->fsync_err) ? accumulator.fsync_err : vfs->fsync_err; + vfs->open_err = (accumulator.open_err >= vfs->open_err) ? accumulator.open_err : vfs->open_err; + vfs->create_err = (accumulator.create_err >= vfs->create_err) ? accumulator.create_err : vfs->create_err; +} + +/** + * Create specific VFS charts + * + * Create charts for cgroup/application. + * + * @param type the chart type. + * @param em the main thread structure. + */ +static void ebpf_create_specific_vfs_charts(char *type, ebpf_module_t *em) +{ + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED,"Files deleted", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_UNLINK_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5500, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5501, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_ERROR_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5502, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5503, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_ERROR_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5504, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk", + EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_BYTES_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5505, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk", + EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_BYTES_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5506, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_FSYNC_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5507, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_FSYNC_ERROR_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5508, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_OPEN_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5509, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_OPEN_ERROR_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5510, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_CREATE_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5511, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_CREATE_ERROR_CONTEXT, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5512, + ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } +} + +/** + * Obsolete specific VFS charts + * + * Obsolete charts for cgroup/application. + * + * @param type the chart type. + * @param em the main thread structure. + */ +static void ebpf_obsolete_specific_vfs_charts(char *type, ebpf_module_t *em) +{ + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_FILE_DELETED, "", "Files deleted", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_UNLINK_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5500, em->update_every); + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "", "Write to disk", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5501, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "", "Fails to write", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_ERROR_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5502, em->update_every); + } + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "", "Read from disk", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5503, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "", "Fails to read", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_ERROR_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5504, em->update_every); + } + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "", "Bytes written on disk", + EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_BYTES_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5505, em->update_every); + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "", "Bytes read from disk", + EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_BYTES_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5506, em->update_every); + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "", "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_FSYNC_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5507, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "", "Sync error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_FSYNC_ERROR_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5508, em->update_every); + } + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "", "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_OPEN_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5509, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "", "Open error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_OPEN_ERROR_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5510, em->update_every); + } + + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "", "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_CREATE_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5511, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "", "Create error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_CREATE_ERROR_CONTEXT, + NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5512, em->update_every); + } +} + +/* + * Send specific VFS data + * + * Send data for specific cgroup/apps. + * + * @param type chart type + * @param values structure with values that will be sent to netdata + */ +static void ebpf_send_specific_vfs_data(char *type, netdata_publish_vfs_t *values, ebpf_module_t *em) +{ + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].name, (long long)values->unlink_call); + ebpf_write_end_chart(); + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name, + (long long)values->write_call + (long long)values->writev_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name, + (long long)values->write_err + (long long)values->writev_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name, + (long long)values->read_call + (long long)values->readv_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name, + (long long)values->read_err + (long long)values->readv_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name, + (long long)values->write_bytes + (long long)values->writev_bytes); + ebpf_write_end_chart(); + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name, + (long long)values->read_bytes + (long long)values->readv_bytes); + ebpf_write_end_chart(); + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].name, + (long long)values->fsync_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].name, + (long long)values->fsync_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].name, + (long long)values->open_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].name, + (long long)values->open_err); + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].name, + (long long)values->create_call); + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, ""); + write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].name, + (long long)values->create_err); + ebpf_write_end_chart(); + } +} + +/** + * Create Systemd Socket Charts + * + * Create charts when systemd is enabled + * + * @param em the main collector structure + **/ +static void ebpf_create_systemd_vfs_charts(ebpf_module_t *em) +{ + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_FILE_DELETED, "Files deleted", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20065, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_UNLINK_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20066, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20067, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], + NETDATA_SYSTEMD_VFS_WRITE_ERROR_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + } + + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20068, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20069, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], + NETDATA_SYSTEMD_VFS_READ_ERROR_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + } + + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk", + EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20070, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_BYTES_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk", + EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20071, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_BYTES_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20072, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_FSYNC_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20073, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_FSYNC_ERROR_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + } + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20074, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_OPEN_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20075, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_OPEN_ERROR_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + } + + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20076, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_CREATE_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error", + EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, 20077, + ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_CREATE_ERROR_CONTEXT, + NETDATA_EBPF_MODULE_NAME_VFS, em->update_every); + } +} + +/** + * Send Systemd charts + * + * Send collected data to Netdata. + * + * @param em the main collector structure + */ +static void ebpf_send_systemd_vfs_charts(ebpf_module_t *em) +{ + ebpf_cgroup_target_t *ect; + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_FILE_DELETED, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.unlink_call); + } + } + ebpf_write_end_chart(); + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_call + + ect->publish_systemd_vfs.writev_call); + } + } + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_err + + ect->publish_systemd_vfs.writev_err); + } + } + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_call + + ect->publish_systemd_vfs.readv_call); + } + } + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_err + + ect->publish_systemd_vfs.readv_err); + } + } + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_bytes + + ect->publish_systemd_vfs.writev_bytes); + } + } + ebpf_write_end_chart(); + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_bytes + + ect->publish_systemd_vfs.readv_bytes); + } + } + ebpf_write_end_chart(); + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.fsync_call); + } + } + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.fsync_err); + } + } + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.open_call); + } + } + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.open_err); + } + } + ebpf_write_end_chart(); + } + + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.create_call); + } + } + ebpf_write_end_chart(); + + if (em->mode < MODE_ENTRY) { + ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, ""); + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (unlikely(ect->systemd) && unlikely(ect->updated)) { + write_chart_dimension(ect->name, ect->publish_systemd_vfs.create_err); + } + } + ebpf_write_end_chart(); + } +} + +/** + * Send data to Netdata calling auxiliary functions. + * + * @param em the main collector structure +*/ +static void ebpf_vfs_send_cgroup_data(ebpf_module_t *em) +{ + if (!ebpf_cgroup_pids) + return; + + pthread_mutex_lock(&mutex_cgroup_shm); + ebpf_cgroup_target_t *ect; + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + ebpf_vfs_sum_cgroup_pids(&ect->publish_systemd_vfs, ect->pids); + } + + int has_systemd = shm_ebpf_cgroup.header->systemd_enabled; + if (has_systemd) { + if (send_cgroup_chart) { + ebpf_create_systemd_vfs_charts(em); + } + ebpf_send_systemd_vfs_charts(em); + } + + for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) { + if (ect->systemd) + continue; + + if (!(ect->flags & NETDATA_EBPF_CGROUP_HAS_VFS_CHART) && ect->updated) { + ebpf_create_specific_vfs_charts(ect->name, em); + ect->flags |= NETDATA_EBPF_CGROUP_HAS_VFS_CHART; + } + + if (ect->flags & NETDATA_EBPF_CGROUP_HAS_VFS_CHART) { + if (ect->updated) { + ebpf_send_specific_vfs_data(ect->name, &ect->publish_systemd_vfs, em); + } else { + ebpf_obsolete_specific_vfs_charts(ect->name, em); + ect->flags &= ~NETDATA_EBPF_CGROUP_HAS_VFS_CHART; + } + } + } + + pthread_mutex_unlock(&mutex_cgroup_shm); +} + +/** + * Main loop for this collector. + * + * @param step the number of microseconds used with heart beat + * @param em the structure with thread information + */ +static void vfs_collector(ebpf_module_t *em) +{ + int cgroups = em->cgroup_charts; + heartbeat_t hb; + heartbeat_init(&hb); + int update_every = em->update_every; + int counter = update_every - 1; + int maps_per_core = em->maps_per_core; + uint32_t running_time = 0; + uint32_t lifetime = em->lifetime; + netdata_idx_t *stats = em->hash_table_stats; + memset(stats, 0, sizeof(em->hash_table_stats)); + while (!ebpf_plugin_exit && running_time < lifetime) { + (void)heartbeat_next(&hb, USEC_PER_SEC); + if (ebpf_plugin_exit || ++counter != update_every) + continue; + + counter = 0; + netdata_apps_integration_flags_t apps = em->apps_charts; + ebpf_vfs_read_global_table(stats, maps_per_core); + pthread_mutex_lock(&collect_data_mutex); + if (apps) + ebpf_vfs_read_apps(maps_per_core); + + if (cgroups) + read_update_vfs_cgroup(maps_per_core); + + pthread_mutex_lock(&lock); + +#ifdef NETDATA_DEV_MODE + if (ebpf_aral_vfs_pid) + ebpf_send_data_aral_chart(ebpf_aral_vfs_pid, em); +#endif + + ebpf_vfs_send_data(em); + fflush(stdout); + + if (apps & NETDATA_EBPF_APPS_FLAG_CHART_CREATED) + ebpf_vfs_send_apps_data(em, apps_groups_root_target); + + if (cgroups) + ebpf_vfs_send_cgroup_data(em); + + pthread_mutex_unlock(&lock); + pthread_mutex_unlock(&collect_data_mutex); + + pthread_mutex_lock(&ebpf_exit_cleanup); + if (running_time && !em->running_time) + running_time = update_every; + else + running_time += update_every; + + em->running_time = running_time; + pthread_mutex_unlock(&ebpf_exit_cleanup); + } +} + +/***************************************************************** + * + * FUNCTIONS TO CREATE CHARTS + * + *****************************************************************/ + +/** + * Create IO chart + * + * @param family the chart family + * @param name the chart name + * @param axis the axis label + * @param web the group name used to attach the chart on dashboard + * @param order the order number of the specified chart + * @param algorithm the algorithm used to make the charts. + * @param update_every value to overwrite the update frequency set by the server. + */ +static void ebpf_create_io_chart(char *family, char *name, char *axis, char *web, + int order, int algorithm, int update_every) +{ + printf("CHART %s.%s '' 'Bytes written and read' '%s' '%s' '' line %d %d '' 'ebpf.plugin' 'filesystem'\n", + family, + name, + axis, + web, + order, + update_every); + + printf("DIMENSION %s %s %s 1 1\n", + vfs_id_names[NETDATA_KEY_PUBLISH_VFS_READ], + vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_READ], + ebpf_algorithms[algorithm]); + printf("DIMENSION %s %s %s -1 1\n", + vfs_id_names[NETDATA_KEY_PUBLISH_VFS_WRITE], + vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_WRITE], + ebpf_algorithms[algorithm]); +} + +/** + * Create global charts + * + * Call ebpf_create_chart to create the charts for the collector. + * + * @param em a pointer to the structure with the default values. + */ +static void ebpf_create_global_charts(ebpf_module_t *em) +{ + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FILE_CLEAN_COUNT, + "Remove files", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_CLEAN, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FILE_IO_COUNT, + "Calls to IO", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_COUNT, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], + 2, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + ebpf_create_io_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_IO_FILE_BYTES, EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_GROUP, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_BYTES, + NETDATA_EBPF_INCREMENTAL_IDX, em->update_every); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FILE_ERR_COUNT, + "Fails to write or read", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EBYTES, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], + 2, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FSYNC, + "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_FSYNC, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_FSYNC_ERR, + "Fails to synchronize", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EFSYNC, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_OPEN, + "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_OPEN, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_OPEN_ERR, + "Fails to open a file", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EOPEN, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_CREATE, + "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_CREATE, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + + if (em->mode < MODE_ENTRY) { + ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY, + NETDATA_VFS_CREATE_ERR, + "Fails to create a file.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NULL, + NETDATA_EBPF_CHART_TYPE_LINE, + NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_ECREATE, + ebpf_create_global_dimension, + &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], + 1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS); + } + + fflush(stdout); +} + +/** + * Create process apps charts + * + * Call ebpf_create_chart to create the charts on apps submenu. + * + * @param em a pointer to the structure with the default values. + * @param ptr a pointer for the targets. + **/ +void ebpf_vfs_create_apps_charts(struct ebpf_module *em, void *ptr) +{ + struct ebpf_target *root = ptr; + struct ebpf_target *w; + int order = 20275; + int update_every = em->update_every; + for (w = root; w; w = w->next) { + if (unlikely(!w->exposed)) + continue; + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_unlink", + "Files deleted.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_unlink", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_write", + "Write to disk.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_write", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_write_error", + "Fails to write.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_write_error", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + } + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_read", + "Read from disk.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_read", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_read_error", + "Fails to read.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_read_error", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + } + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_write_bytes", + "Bytes written on disk.", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_write_bytes", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION writes '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_read_bytes", + "Bytes read from disk.", + EBPF_COMMON_DIMENSION_BYTES, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_read_bytes", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION reads '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_fsync", + "Calls to vfs_fsync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_fsync", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_fsync_error", + "Fails to sync.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_fsync_error", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + } + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_open", + "Calls to vfs_open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_open", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_open_error", + "Fails to open.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_open_error", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + } + + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_create", + "Calls to vfs_create.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_create", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + + if (em->mode < MODE_ENTRY) { + ebpf_write_chart_cmd(NETDATA_APP_FAMILY, + w->clean_name, + "_ebpf_call_vfs_create_error", + "Fails to create a file.", + EBPF_COMMON_DIMENSION_CALL, + NETDATA_VFS_GROUP, + NETDATA_EBPF_CHART_TYPE_STACKED, + "app.ebpf_call_vfs_create_error", + order++, + update_every, + NETDATA_EBPF_MODULE_NAME_VFS); + ebpf_create_chart_labels("app_group", w->name, 1); + ebpf_commit_label(); + fprintf(stdout, "DIMENSION calls '' %s 1 1\n", ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX]); + } + + w->charts_created |= 1<<EBPF_MODULE_VFS_IDX; + } + + em->apps_charts |= NETDATA_EBPF_APPS_FLAG_CHART_CREATED; +} + +/***************************************************************** + * + * FUNCTIONS TO START THREAD + * + *****************************************************************/ + +/** + * Allocate vectors used with this thread. + * We are not testing the return, because callocz does this and shutdown the software + * case it was not possible to allocate. + * + * @param apps is apps enabled? + */ +static void ebpf_vfs_allocate_global_vectors(int apps) +{ + if (apps) { + ebpf_vfs_aral_init(); + vfs_pid = callocz((size_t)pid_max, sizeof(netdata_publish_vfs_t *)); + vfs_vector = callocz(ebpf_nprocs, sizeof(netdata_publish_vfs_t)); + } + + memset(vfs_aggregated_data, 0, sizeof(vfs_aggregated_data)); + memset(vfs_publish_aggregated, 0, sizeof(vfs_publish_aggregated)); + + vfs_hash_values = callocz(ebpf_nprocs, sizeof(netdata_idx_t)); +} + +/***************************************************************** + * + * EBPF VFS THREAD + * + *****************************************************************/ + +/* + * Load BPF + * + * Load BPF files. + * + * @param em the structure with configuration + */ +static int ebpf_vfs_load_bpf(ebpf_module_t *em) +{ +#ifdef LIBBPF_MAJOR_VERSION + ebpf_define_map_type(em->maps, em->maps_per_core, running_on_kernel); +#endif + + int ret = 0; + ebpf_adjust_apps_cgroup(em, em->targets[NETDATA_EBPF_VFS_WRITE].mode); + if (em->load & EBPF_LOAD_LEGACY) { + em->probe_links = ebpf_load_program(ebpf_plugin_dir, em, running_on_kernel, isrh, &em->objects); + if (!em->probe_links) { + ret = -1; + } + } +#ifdef LIBBPF_MAJOR_VERSION + else { + vfs_bpf_obj = vfs_bpf__open(); + if (!vfs_bpf_obj) + ret = -1; + else + ret = ebpf_vfs_load_and_attach(vfs_bpf_obj, em); + } +#endif + + return ret; +} + +/** + * Process thread + * + * Thread used to generate process charts. + * + * @param ptr a pointer to `struct ebpf_module` + * + * @return It always return NULL + */ +void *ebpf_vfs_thread(void *ptr) +{ + netdata_thread_cleanup_push(ebpf_vfs_exit, ptr); + + ebpf_module_t *em = (ebpf_module_t *)ptr; + em->maps = vfs_maps; + + ebpf_update_pid_table(&vfs_maps[NETDATA_VFS_PID], em); + + ebpf_vfs_allocate_global_vectors(em->apps_charts); + +#ifdef LIBBPF_MAJOR_VERSION + ebpf_adjust_thread_load(em, default_btf); +#endif + if (ebpf_vfs_load_bpf(em)) { + goto endvfs; + } + + int algorithms[NETDATA_KEY_PUBLISH_VFS_END] = { + NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX,NETDATA_EBPF_INCREMENTAL_IDX, + NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX,NETDATA_EBPF_INCREMENTAL_IDX + }; + + ebpf_global_labels(vfs_aggregated_data, vfs_publish_aggregated, vfs_dimension_names, + vfs_id_names, algorithms, NETDATA_KEY_PUBLISH_VFS_END); + + pthread_mutex_lock(&lock); + ebpf_create_global_charts(em); + ebpf_update_stats(&plugin_statistics, em); + ebpf_update_kernel_memory_with_vector(&plugin_statistics, em->maps, EBPF_ACTION_STAT_ADD); +#ifdef NETDATA_DEV_MODE + if (ebpf_aral_vfs_pid) + vfs_disable_priority = ebpf_statistic_create_aral_chart(NETDATA_EBPF_VFS_ARAL_NAME, em); +#endif + + pthread_mutex_unlock(&lock); + + vfs_collector(em); + +endvfs: + ebpf_update_disabled_plugin_stats(em); + + netdata_thread_cleanup_pop(1); + return NULL; +} |