src/collectors/ebpf.plugin/ebpf_vfs.c
// SPDX-License-Identifier: GPL-3.0-or-later
#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 netdata_static_thread ebpf_read_vfs = {
.name = "EBPF_READ_VFS",
.config_section = NULL,
.config_name = NULL,
.env_name = NULL,
.enabled = 1,
.thread = NULL,
.init_routine = NULL,
.start_routine = NULL
};
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 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);
}
/*
* 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);
}
/**
* 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);
}
/**
* 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);
long 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;
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);
}
/**
* 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);
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, char *id)
{
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_FILE_DELETED,
"Files deleted",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_UNLINK_CONTEXT,
20065,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS,
"Write to disk",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_WRITE_CONTEXT,
20066,
em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR,
"Fails to write",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_WRITE_ERROR_CONTEXT,
20067,
em->update_every);
}
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_READ_CALLS,
"Read from disk",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_READ_CONTEXT,
20068,
em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR,
"Fails to read",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_READ_ERROR_CONTEXT,
20069,
em->update_every);
}
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES,
"Bytes written on disk",
EBPF_COMMON_UNITS_BYTES,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_WRITE_BYTES_CONTEXT,
20070,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_READ_BYTES,
"Bytes read from disk",
EBPF_COMMON_UNITS_BYTES,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_READ_BYTES_CONTEXT,
20071,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_FSYNC,
"Calls to vfs_fsync.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_FSYNC_CONTEXT,
20072,
em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR,
"Sync error",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_FSYNC_ERROR_CONTEXT,
20073,
em->update_every);
}
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_OPEN,
"Calls to vfs_open.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_OPEN_CONTEXT,
20074,
em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR,
"Open error",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_OPEN_ERROR_CONTEXT,
20075,
em->update_every);
}
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_CREATE,
"Calls to vfs_create.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_OPEN_ERROR_CONTEXT,
20076,
em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(NETDATA_SERVICE_FAMILY,
id,
NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR,
"Create error",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
NETDATA_SYSTEMD_VFS_CREATE_ERROR_CONTEXT,
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_cgroup_target_t *ect;
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (ect->systemd) {
ebpf_obsolete_vfs_services(em, ect->name);
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;
pthread_mutex_lock(&collect_data_mutex);
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_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_UNITS_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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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_UNITS_CALLS_PER_SEC,
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);
}
pthread_mutex_unlock(&collect_data_mutex);
}
/**
* 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_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_deleted_objects",
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_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_io",
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_UNITS_BYTES,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_io_bytes",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_BYTES,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FSYNC,
"",
"Calls to vfs_fsync.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_fsync",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_FSYNC,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_OPEN,
"",
"Calls to vfs_open.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_open",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_OPEN,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_CREATE,
"",
"Calls to vfs_create.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_create",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_CREATE,
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_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_io_error",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EBYTES,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_OPEN_ERR,
"",
"Fails to open a file",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_open_error",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EOPEN,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FSYNC_ERR,
"",
"Fails to synchronize",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_fsync_error",
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EFSYNC,
em->update_every);
ebpf_write_chart_obsolete(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_CREATE_ERR,
"",
"Fails to create a file.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE,
"filesystem.vfs_create_error",
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 *pptr)
{
ebpf_module_t *em = CLEANUP_FUNCTION_GET_PTR(pptr);
if(!em) return;
if (ebpf_read_vfs.thread)
nd_thread_signal_cancel(ebpf_read_vfs.thread);
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);
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;
ebpf_pid_stat_t *local_pid = ebpf_get_pid_entry(pid, 0);
if (local_pid) {
netdata_publish_vfs_t *w = &local_pid->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;
}
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;
pthread_mutex_lock(&collect_data_mutex);
for (w = root; w; w = w->next) {
if (unlikely(!(w->charts_created & (1<<EBPF_MODULE_VFS_IDX))))
continue;
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();
}
}
pthread_mutex_unlock(&collect_data_mutex);
}
/**
* 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;
}
}
/**
* Read the hash table and store data to allocated vectors.
*/
static void ebpf_vfs_read_apps(int maps_per_core, int max_period)
{
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;
uint32_t key = 0, next_key = 0;
while (bpf_map_get_next_key(fd, &key, &next_key) == 0) {
if (bpf_map_lookup_elem(fd, &key, vv)) {
goto end_vfs_loop;
}
vfs_apps_accumulator(vv, maps_per_core);
ebpf_pid_stat_t *local_pid = ebpf_get_pid_entry(key, vv->tgid);
if (!local_pid)
goto end_vfs_loop;
netdata_publish_vfs_t *publish = &local_pid->vfs;
if (!publish->ct || publish->ct != vv->ct) {
memcpy(publish, vv, sizeof(netdata_publish_vfs_t));
local_pid->not_updated = 0;
} else if (++local_pid->not_updated >= max_period){
bpf_map_delete_elem(fd, &key);
local_pid->not_updated = 0;
}
end_vfs_loop:
// We are cleaning to avoid passing data read from one process to other.
memset(vv, 0, length);
key = next_key;
}
}
/**
* 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()
{
ebpf_cgroup_target_t *ect ;
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;
ebpf_pid_stat_t *local_pid = ebpf_get_pid_entry(pid, 0);
if (local_pid) {
netdata_publish_vfs_t *in = &local_pid->vfs;
memcpy(out, in, 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)
{
char *label = (!strncmp(type, "cgroup_", 7)) ? &type[7] : type;
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED,"Files deleted",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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);
ebpf_create_chart_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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);
ebpf_create_chart_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk",
EBPF_COMMON_UNITS_BYTES, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk",
EBPF_COMMON_UNITS_BYTES, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls to vfs_fsync.",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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);
ebpf_create_chart_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls to vfs_open.",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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);
ebpf_create_chart_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls to vfs_create.",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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);
ebpf_create_chart_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error",
EBPF_COMMON_UNITS_CALLS_PER_SEC, NETDATA_VFS_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);
ebpf_create_chart_labels("cgroup_name", label, RRDLABEL_SRC_AUTO);
ebpf_commit_label();
}
}
/**
* 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_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_UNITS_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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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_UNITS_CALLS_PER_SEC, 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)
{
static ebpf_systemd_args_t data_vfs_unlink = {
.title = "Files deleted",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20065,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_UNLINK_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_FILE_DELETED,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_write = {
.title = "Write to disk",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20066,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_WRITE_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_write_err = {
.title = "Fails to write",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20067,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_WRITE_ERROR_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_read = {
.title = "Read from disk",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20068,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_READ_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_READ_CALLS,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_read_err = {
.title = "Fails to read",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20069,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_READ_ERROR_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_write_bytes = {
.title = "Bytes written on disk",
.units = EBPF_COMMON_UNITS_BYTES,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20070,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_WRITE_BYTES_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES,
.dimension = "bytes"
};
static ebpf_systemd_args_t data_vfs_read_bytes = {
.title = "Bytes read from disk",
.units = EBPF_COMMON_UNITS_BYTES,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20071,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_READ_BYTES_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_READ_BYTES,
.dimension = "bytes"
};
static ebpf_systemd_args_t data_vfs_fsync = {
.title = "Calls to vfs_fsync.",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20072,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_FSYNC_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_FSYNC,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_fsync_err = {
.title = "Sync error",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20073,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_FSYNC_ERROR_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_open = {
.title = "Calls to vfs_open.",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20074,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_OPEN_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_OPEN,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_open_err = {
.title = "Open error",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20075,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_OPEN_ERROR_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_create = {
.title = "Calls to vfs_create.",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20076,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_CREATE_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_CREATE,
.dimension = "calls"
};
static ebpf_systemd_args_t data_vfs_create_err = {
.title = "Create error",
.units = EBPF_COMMON_UNITS_CALLS_PER_SEC,
.family = NETDATA_VFS_GROUP,
.charttype = NETDATA_EBPF_CHART_TYPE_STACKED,
.order = 20077,
.algorithm = EBPF_CHART_ALGORITHM_INCREMENTAL,
.context = NETDATA_SYSTEMD_VFS_CREATE_ERROR_CONTEXT,
.module = NETDATA_EBPF_MODULE_NAME_VFS,
.update_every = 0,
.suffix = NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR,
.dimension = "calls"
};
if (!data_vfs_create.update_every)
data_vfs_unlink.update_every = data_vfs_write.update_every = data_vfs_write_err.update_every =
data_vfs_read.update_every = data_vfs_read_err.update_every = data_vfs_write_bytes.update_every =
data_vfs_read_bytes.update_every = data_vfs_fsync.update_every = data_vfs_fsync_err.update_every =
data_vfs_open.update_every = data_vfs_open_err.update_every = data_vfs_create.update_every =
data_vfs_create_err.update_every = em->update_every;
ebpf_cgroup_target_t *w;
for (w = ebpf_cgroup_pids; w ; w = w->next) {
if (unlikely(!w->systemd || w->flags & NETDATA_EBPF_SERVICES_HAS_VFS_CHART))
continue;
data_vfs_unlink.id = data_vfs_write.id = data_vfs_write_err.id =
data_vfs_read.id = data_vfs_read_err.id = data_vfs_write_bytes.id = data_vfs_read_bytes.id =
data_vfs_fsync.id = data_vfs_fsync_err.id = data_vfs_open.id =
data_vfs_open_err.id = data_vfs_create.id = data_vfs_create_err.id = w->name;
ebpf_create_charts_on_systemd(&data_vfs_unlink);
ebpf_create_charts_on_systemd(&data_vfs_write);
ebpf_create_charts_on_systemd(&data_vfs_read);
ebpf_create_charts_on_systemd(&data_vfs_write_bytes);
ebpf_create_charts_on_systemd(&data_vfs_read_bytes);
ebpf_create_charts_on_systemd(&data_vfs_fsync);
ebpf_create_charts_on_systemd(&data_vfs_open);
ebpf_create_charts_on_systemd(&data_vfs_create);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_systemd(&data_vfs_write_err);
ebpf_create_charts_on_systemd(&data_vfs_read_err);
ebpf_create_charts_on_systemd(&data_vfs_fsync_err);
ebpf_create_charts_on_systemd(&data_vfs_open_err);
ebpf_create_charts_on_systemd(&data_vfs_create_err);
}
w->flags |= NETDATA_EBPF_SERVICES_HAS_VFS_CHART;
}
}
/**
* 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;
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(!(ect->flags & NETDATA_EBPF_SERVICES_HAS_VFS_CHART)) ) {
continue;
}
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_FILE_DELETED);
write_chart_dimension("calls", ect->publish_systemd_vfs.unlink_call);
ebpf_write_end_chart();
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS);
write_chart_dimension("calls", 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, ect->name, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR);
write_chart_dimension("calls", ect->publish_systemd_vfs.write_err +
ect->publish_systemd_vfs.writev_err);
ebpf_write_end_chart();
}
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_READ_CALLS);
write_chart_dimension("calls", 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, ect->name, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR);
write_chart_dimension("calls", ect->publish_systemd_vfs.read_err +
ect->publish_systemd_vfs.readv_err);
ebpf_write_end_chart();
}
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES);
write_chart_dimension("bytes", ect->publish_systemd_vfs.write_bytes +
ect->publish_systemd_vfs.writev_bytes);
ebpf_write_end_chart();
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_READ_BYTES);
write_chart_dimension("bytes", ect->publish_systemd_vfs.read_bytes +
ect->publish_systemd_vfs.readv_bytes);
ebpf_write_end_chart();
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_FSYNC);
write_chart_dimension("calls", ect->publish_systemd_vfs.fsync_call);
ebpf_write_end_chart();
if (em->mode < MODE_ENTRY) {
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR);
write_chart_dimension("calls", ect->publish_systemd_vfs.fsync_err);
ebpf_write_end_chart();
}
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_OPEN);
write_chart_dimension("calls", ect->publish_systemd_vfs.open_call);
ebpf_write_end_chart();
if (em->mode < MODE_ENTRY) {
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR);
write_chart_dimension("calls", ect->publish_systemd_vfs.open_err);
ebpf_write_end_chart();
}
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_CREATE);
write_chart_dimension("calls", ect->publish_systemd_vfs.create_call);
ebpf_write_end_chart();
if (em->mode < MODE_ENTRY) {
ebpf_write_begin_chart(NETDATA_SERVICE_FAMILY, ect->name, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR);
write_chart_dimension("calls", 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)
{
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);
}
if (shm_ebpf_cgroup.header->systemd_enabled) {
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);
}
/**
* Resume apps data
*/
void ebpf_vfs_resume_apps_data() {
struct ebpf_target *w;
for (w = apps_groups_root_target; w; w = w->next) {
if (unlikely(!(w->charts_created & (1 << EBPF_MODULE_VFS_IDX))))
continue;
ebpf_vfs_sum_pids(&w->vfs, w->root_pid);
}
}
/**
* VFS thread
*
* Thread used to generate charts.
*
* @param ptr a pointer to `struct ebpf_module`
*
* @return It always return NULL
*/
void *ebpf_read_vfs_thread(void *ptr)
{
heartbeat_t hb;
heartbeat_init(&hb);
ebpf_module_t *em = (ebpf_module_t *)ptr;
int maps_per_core = em->maps_per_core;
int update_every = em->update_every;
int counter = update_every - 1;
uint32_t lifetime = em->lifetime;
uint32_t running_time = 0;
usec_t period = update_every * USEC_PER_SEC;
int max_period = update_every * EBPF_CLEANUP_FACTOR;
while (!ebpf_plugin_stop() && running_time < lifetime) {
(void)heartbeat_next(&hb, period);
if (ebpf_plugin_stop() || ++counter != update_every)
continue;
pthread_mutex_lock(&collect_data_mutex);
ebpf_vfs_read_apps(maps_per_core, max_period);
ebpf_vfs_resume_apps_data();
pthread_mutex_unlock(&collect_data_mutex);
counter = 0;
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);
}
return NULL;
}
/**
* 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_stop() && running_time < lifetime) {
(void)heartbeat_next(&hb, USEC_PER_SEC);
if (ebpf_plugin_stop() || ++counter != update_every)
continue;
counter = 0;
netdata_apps_integration_flags_t apps = em->apps_charts;
ebpf_vfs_read_global_table(stats, maps_per_core);
if (cgroups && shm_ebpf_cgroup.header)
read_update_vfs_cgroup();
pthread_mutex_lock(&lock);
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 && shm_ebpf_cgroup.header)
ebpf_vfs_send_cgroup_data(em);
pthread_mutex_unlock(&lock);
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' 'filesystem.vfs_io_bytes' 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_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_deleted_objects",
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_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_io",
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_UNITS_BYTES,
NETDATA_VFS_GROUP,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_BYTES,
NETDATA_EBPF_INCREMENTAL_IDX, em->update_every);
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FSYNC,
"Calls to vfs_fsync.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_fsync",
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);
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_OPEN,
"Calls to vfs_open.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_open",
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);
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_CREATE,
"Calls to vfs_create.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_create",
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_FILE_ERR_COUNT,
"Fails to write or read",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_io_error",
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_ERR,
"Fails to synchronize",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_fsync_error",
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_ERR,
"Fails to open a file",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_open_error",
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_ERR,
"Fails to create a file.",
EBPF_COMMON_UNITS_CALLS_PER_SEC,
NETDATA_VFS_GROUP,
"filesystem.vfs_create_error",
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_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, RRDLABEL_SRC_AUTO);
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_UNITS_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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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_UNITS_CALLS_PER_SEC,
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, RRDLABEL_SRC_AUTO);
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()
{
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)
{
ebpf_module_t *em = (ebpf_module_t *)ptr;
CLEANUP_FUNCTION_REGISTER(ebpf_vfs_exit) cleanup_ptr = em;
em->maps = vfs_maps;
ebpf_update_pid_table(&vfs_maps[NETDATA_VFS_PID], em);
ebpf_vfs_allocate_global_vectors();
#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);
pthread_mutex_unlock(&lock);
ebpf_read_vfs.thread = nd_thread_create(ebpf_read_vfs.name, NETDATA_THREAD_OPTION_DEFAULT, ebpf_read_vfs_thread, em);
vfs_collector(em);
endvfs:
ebpf_update_disabled_plugin_stats(em);
return NULL;
}