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Searched refs:psi (Results 1 – 25 of 30) sorted by relevance

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/Linux-v5.15/drivers/md/
Ddm-path-selector.c31 struct ps_internal *psi; in __find_path_selector_type() local
33 list_for_each_entry(psi, &_path_selectors, list) { in __find_path_selector_type()
34 if (!strcmp(name, psi->pst.name)) in __find_path_selector_type()
35 return psi; in __find_path_selector_type()
43 struct ps_internal *psi; in get_path_selector() local
46 psi = __find_path_selector_type(name); in get_path_selector()
47 if (psi && !try_module_get(psi->pst.module)) in get_path_selector()
48 psi = NULL; in get_path_selector()
51 return psi; in get_path_selector()
56 struct ps_internal *psi; in dm_get_path_selector() local
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/Linux-v5.15/fs/pstore/
Dplatform.c375 record->psi = psinfo; in pstore_record_init()
548 ret = record->psi->write(record); in pstore_write_user_compat()
564 int pstore_register(struct pstore_info *psi) in pstore_register() argument
566 if (backend && strcmp(backend, psi->name)) { in pstore_register()
567 pr_warn("ignoring unexpected backend '%s'\n", psi->name); in pstore_register()
572 if (!psi->flags) { in pstore_register()
574 psi->name); in pstore_register()
579 if (!psi->read || !psi->write) { in pstore_register()
581 psi->name); in pstore_register()
588 psinfo->name, psi->name); in pstore_register()
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Dinternal.h40 extern void pstore_get_backend_records(struct pstore_info *psi,
42 extern int pstore_put_backend_records(struct pstore_info *psi);
46 struct pstore_info *psi);
Dinode.c186 if (!record->psi->erase) in pstore_unlink()
200 mutex_lock(&record->psi->read_mutex); in pstore_unlink()
201 record->psi->erase(record); in pstore_unlink()
202 mutex_unlock(&record->psi->read_mutex); in pstore_unlink()
311 int pstore_put_backend_records(struct pstore_info *psi) in pstore_put_backend_records() argument
323 if (pos->record->psi == psi) { in pstore_put_backend_records()
363 pos->record->psi == record->psi) in pstore_mkfile()
375 record->psi->name, record->id, in pstore_mkfile()
Dram.c105 static int ramoops_pstore_open(struct pstore_info *psi) in ramoops_pstore_open() argument
107 struct ramoops_context *cxt = psi->data; in ramoops_pstore_open()
179 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_read()
309 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_write()
396 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_write_user()
408 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_erase()
Dzone.c632 static int psz_pstore_open(struct pstore_info *psi) in psz_pstore_open() argument
634 struct psz_context *cxt = psi->data; in psz_pstore_open()
701 struct psz_context *cxt = record->psi->data; in psz_pstore_erase()
723 struct psz_context *cxt = record->psi->data; in psz_write_kmsg_hdr()
874 struct psz_context *cxt = record->psi->data; in psz_pstore_write()
1022 cxt = record->psi->data; in psz_ftrace_read()
1058 struct psz_context *cxt = record->psi->data; in psz_pstore_read()
Dftrace.c38 .psi = psinfo, in pstore_ftrace_call()
/Linux-v5.15/Documentation/translations/zh_CN/accounting/
Dpsi.rst3 :Original: Documentation/accounting/psi.rst
22 psi特性能够识别和量化资源竞争导致的业务中断，及其对复杂负载乃至整个系统在
28 psi能够实时的提供相关信息，因此系统可基于psi实现动态的负载管理。如实施
31 psi帮助用户实现硬件资源利用率的最大化。同时无需牺牲业务负载健康度，也无需
68 触发器注册方法：用户打开代表特定资源的psi接口文件，写入门限、时间窗口的值。
78 触发器可针对多个psi度量值设置，同一个psi度量值可设置多个触发器。每个触发器需要
79 单独的文件描述符用于轮询，以区分于其他触发器。所以即使对于同一个psi接口文件，
83 状态后，监控psi增长的频率为每监控窗口刷新10次。
87 psi接口提供的均值即可。
151 对于CONFIG_CGROUP=y及挂载了cgroup2文件系统的系统，能够获取cgroups内任务的psi。
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Dindex.rst18 psi
/Linux-v5.15/Documentation/accounting/
Dpsi.rst18 The psi feature identifies and quantifies the disruptions caused by
26 As psi aggregates this information in realtime, systems can be managed
78 To register a trigger user has to open psi interface file under
91 Triggers can be set on more than one psi metric and more than one trigger
92 for the same psi metric can be specified. However for each trigger a separate
95 when opening the same psi interface file.
98 psi metric and deactivates upon exit from the stall state. While system is
99 in the stall state psi signal growth is monitored at a rate of 10 times per
105 after which monitors are most likely not needed and psi averages can be used
108 When activated, psi monitor stays active for at least the duration of one
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Dindex.rst12 psi
/Linux-v5.15/include/linux/
Dpstore.h70 struct pstore_info *psi; member
191 int (*open)(struct pstore_info *psi);
192 int (*close)(struct pstore_info *psi);
Dcgroup-defs.h478 struct psi_group psi; member
Dcgroup.h676 return &cgrp->psi; in cgroup_psi()
/Linux-v5.15/drivers/firmware/efi/
Defi-pstore.c26 static int efi_pstore_open(struct pstore_info *psi) in efi_pstore_open() argument
28 psi->data = NULL; in efi_pstore_open()
32 static int efi_pstore_close(struct pstore_info *psi) in efi_pstore_close() argument
34 psi->data = NULL; in efi_pstore_close()
175 struct efivar_entry **pos = (struct efivar_entry **)&record->psi->data; in efi_pstore_sysfs_entry_iter()
269 preemptible(), record->size, record->psi->buf); in efi_pstore_write()
/Linux-v5.15/drivers/usb/host/
Dxhci-hub.c76 if ((port_cap->psi[i] & PLT_MASK) == PLT_SYM) in xhci_create_usb3x_bos_desc()
149 u32 psi; in xhci_create_usb3x_bos_desc() local
159 psi = port_cap->psi[i]; in xhci_create_usb3x_bos_desc()
160 ssid = XHCI_EXT_PORT_PSIV(psi); in xhci_create_usb3x_bos_desc()
161 lp = XHCI_EXT_PORT_LP(psi); in xhci_create_usb3x_bos_desc()
162 psie = XHCI_EXT_PORT_PSIE(psi); in xhci_create_usb3x_bos_desc()
163 psim = XHCI_EXT_PORT_PSIM(psi); in xhci_create_usb3x_bos_desc()
164 plt = psi & PLT_MASK; in xhci_create_usb3x_bos_desc()
200 u32 prev = port_cap->psi[i - 1]; in xhci_create_usb3x_bos_desc()
Dxhci-mem.c1918 kfree(xhci->port_caps[i].psi); in xhci_mem_cleanup()
2178 port_cap->psi = kcalloc_node(port_cap->psi_count, in xhci_add_in_port()
2179 sizeof(*port_cap->psi), in xhci_add_in_port()
2181 if (!port_cap->psi) in xhci_add_in_port()
2186 port_cap->psi[i] = readl(addr + 4 + i); in xhci_add_in_port()
2191 if (i && (XHCI_EXT_PORT_PSIV(port_cap->psi[i]) != in xhci_add_in_port()
2192 XHCI_EXT_PORT_PSIV(port_cap->psi[i - 1]))) in xhci_add_in_port()
2196 XHCI_EXT_PORT_PSIV(port_cap->psi[i]), in xhci_add_in_port()
2197 XHCI_EXT_PORT_PSIE(port_cap->psi[i]), in xhci_add_in_port()
2198 XHCI_EXT_PORT_PLT(port_cap->psi[i]), in xhci_add_in_port()
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/Linux-v5.15/kernel/sched/
DMakefile38 obj-$(CONFIG_PSI) += psi.o
Dpsi.c951 cgroup->psi.pcpu = alloc_percpu(struct psi_group_cpu); in psi_cgroup_alloc()
952 if (!cgroup->psi.pcpu) in psi_cgroup_alloc()
954 group_init(&cgroup->psi); in psi_cgroup_alloc()
963 cancel_delayed_work_sync(&cgroup->psi.avgs_work); in psi_cgroup_free()
964 free_percpu(cgroup->psi.pcpu); in psi_cgroup_free()
966 WARN_ONCE(cgroup->psi.poll_states, "psi: trigger leak\n"); in psi_cgroup_free()
/Linux-v5.15/drivers/acpi/apei/
Derst.c915 static int erst_open_pstore(struct pstore_info *psi);
916 static int erst_close_pstore(struct pstore_info *psi);
953 static int erst_open_pstore(struct pstore_info *psi) in erst_open_pstore() argument
965 static int erst_close_pstore(struct pstore_info *psi) in erst_close_pstore() argument
/Linux-v5.15/arch/powerpc/kvm/
Dbook3s_64_mmu_radix.c307 int psi; in kvmppc_radix_tlbie_page() local
323 psi = shift_to_mmu_psize(pshift); in kvmppc_radix_tlbie_page()
326 rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58)); in kvmppc_radix_tlbie_page()
333 psize_to_rpti_pgsize(psi), in kvmppc_radix_tlbie_page()
/Linux-v5.15/kernel/cgroup/
Dcgroup.c3588 struct psi_group *psi = cgroup_ino(cgrp) == 1 ? &psi_system : &cgrp->psi; in cgroup_io_pressure_show() local
3590 return psi_show(seq, psi, PSI_IO); in cgroup_io_pressure_show()
3595 struct psi_group *psi = cgroup_ino(cgrp) == 1 ? &psi_system : &cgrp->psi; in cgroup_memory_pressure_show() local
3597 return psi_show(seq, psi, PSI_MEM); in cgroup_memory_pressure_show()
3602 struct psi_group *psi = cgroup_ino(cgrp) == 1 ? &psi_system : &cgrp->psi; in cgroup_cpu_pressure_show() local
3604 return psi_show(seq, psi, PSI_CPU); in cgroup_cpu_pressure_show()
3612 struct psi_group *psi; in cgroup_pressure_write() local
3621 psi = cgroup_ino(cgrp) == 1 ? &psi_system : &cgrp->psi; in cgroup_pressure_write()
3622 new = psi_trigger_create(psi, buf, nbytes, res); in cgroup_pressure_write()
/Linux-v5.15/drivers/infiniband/hw/hfi1/
Dmad.c2011 struct opa_port_state_info *psi = (struct opa_port_state_info *)data; in __subn_get_opa_psi() local
2013 if (nports != 1 || smp_length_check(sizeof(*psi), max_len)) { in __subn_get_opa_psi()
2026 psi->port_states.ledenable_offlinereason = ppd->neighbor_normal << 4; in __subn_get_opa_psi()
2027 psi->port_states.ledenable_offlinereason |= in __subn_get_opa_psi()
2029 psi->port_states.ledenable_offlinereason |= in __subn_get_opa_psi()
2032 psi->port_states.portphysstate_portstate = in __subn_get_opa_psi()
2034 psi->link_width_downgrade_tx_active = in __subn_get_opa_psi()
2036 psi->link_width_downgrade_rx_active = in __subn_get_opa_psi()
2054 struct opa_port_state_info *psi = (struct opa_port_state_info *)data; in __subn_set_opa_psi() local
2057 if (nports != 1 || smp_length_check(sizeof(*psi), max_len)) { in __subn_set_opa_psi()
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/Linux-v5.15/arch/powerpc/kernel/
Dnvram_64.c370 static int nvram_pstore_open(struct pstore_info *psi) in nvram_pstore_open() argument
/Linux-v5.15/Documentation/driver-api/usb/
Dwriting_usb_driver.rst321 https://lmu.web.psi.ch/docu/manuals/software_manuals/linux_sl/usb_linux_programming_guide.pdf

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