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

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/linux-6.15/drivers/md/
H A Ddm-path-selector.c36 return psi; in __find_path_selector_type()
48 if (psi && !try_module_get(psi->pst.module)) in get_path_selector()
49 psi = NULL; in get_path_selector()
52 return psi; in get_path_selector()
63 if (!psi) { in dm_get_path_selector()
68 return psi ? &psi->pst : NULL; in dm_get_path_selector()
80 if (!psi) in dm_put_path_selector()
92 if (psi) in _alloc_path_selector()
95 return psi; in _alloc_path_selector()
103 if (!psi) in dm_register_path_selector()
[all …]
/linux-6.15/fs/pstore/
H A Dplatform.c477 if (!psi->flags) { in pstore_register()
479 psi->name); in pstore_register()
484 if (!psi->read || !psi->write) { in pstore_register()
486 psi->name); in pstore_register()
505 psinfo = psi; in pstore_register()
544 if (!psi) in pstore_unregister()
664 if (!psi || !root) in pstore_get_backend_records()
674 if (psi->open && psi->open(psi)) in pstore_get_backend_records()
712 if (psi->close) in pstore_get_backend_records()
713 psi->close(psi); in pstore_get_backend_records()
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H A 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);
H A Dinode.c187 if (!record->psi->erase) in pstore_unlink()
199 scoped_guard(mutex, &record->psi->read_mutex) in pstore_unlink()
200 record->psi->erase(record); in pstore_unlink()
308 int pstore_put_backend_records(struct pstore_info *psi) in pstore_put_backend_records() argument
319 if (pos->record->psi == psi) { in pstore_put_backend_records()
355 pos->record->psi == record->psi) in pstore_mkfile()
366 record->psi->name, record->id, in pstore_mkfile()
H A Dram.c111 static int ramoops_pstore_open(struct pstore_info *psi) in ramoops_pstore_open() argument
113 struct ramoops_context *cxt = psi->data; in ramoops_pstore_open()
185 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_read()
315 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_write()
402 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_write_user()
414 struct ramoops_context *cxt = record->psi->data; in ramoops_pstore_erase()
H A 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()
1024 cxt = record->psi->data; in psz_ftrace_read()
1060 struct psz_context *cxt = record->psi->data; in psz_pstore_read()
H A Dftrace.c38 .psi = psinfo, in pstore_ftrace_call()
/linux-6.15/Documentation/translations/zh_CN/accounting/
H A 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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H A Dindex.rst19 psi
/linux-6.15/drivers/firmware/efi/
H A Defi-pstore.c54 static int efi_pstore_open(struct pstore_info *psi) in efi_pstore_open() argument
62 psi->data = kzalloc(record_size, GFP_KERNEL); in efi_pstore_open()
63 if (!psi->data) in efi_pstore_open()
69 static int efi_pstore_close(struct pstore_info *psi) in efi_pstore_close() argument
72 kfree(psi->data); in efi_pstore_close()
159 efi_char16_t *varname = record->psi->data; in efi_pstore_read()
227 record->size, record->psi->buf, in efi_pstore_write()
/linux-6.15/Documentation/accounting/
H A Dpsi.rst18 The psi feature identifies and quantifies the disruptions caused by
26 As psi aggregates this information in realtime, systems can be managed
77 To register a trigger user has to open psi interface file under
90 Triggers can be set on more than one psi metric and more than one trigger
91 for the same psi metric can be specified. However for each trigger a separate
95 with an already existing psi trigger will fail with EBUSY.
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
112 When activated, psi monitor stays active for at least the duration of one
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H A Dindex.rst12 psi
/linux-6.15/include/linux/
H A Dpstore.h73 struct pstore_info *psi; member
195 int (*open)(struct pstore_info *psi);
196 int (*close)(struct pstore_info *psi);
H A Dpsi.h37 return cgroup_ino(cgrp) == 1 ? &psi_system : cgrp->psi; in cgroup_psi()
H A Dcgroup-defs.h556 struct psi_group *psi; member
/linux-6.15/kernel/sched/
H A Dpsi.c1108 cgroup->psi = kzalloc(sizeof(struct psi_group), GFP_KERNEL); in psi_cgroup_alloc()
1109 if (!cgroup->psi) in psi_cgroup_alloc()
1112 cgroup->psi->pcpu = alloc_percpu(struct psi_group_cpu); in psi_cgroup_alloc()
1113 if (!cgroup->psi->pcpu) { in psi_cgroup_alloc()
1114 kfree(cgroup->psi); in psi_cgroup_alloc()
1117 group_init(cgroup->psi); in psi_cgroup_alloc()
1118 cgroup->psi->parent = cgroup_psi(cgroup_parent(cgroup)); in psi_cgroup_alloc()
1127 cancel_delayed_work_sync(&cgroup->psi->avgs_work); in psi_cgroup_free()
1128 free_percpu(cgroup->psi->pcpu); in psi_cgroup_free()
1130 WARN_ONCE(cgroup->psi->rtpoll_states, "psi: trigger leak\n"); in psi_cgroup_free()
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/linux-6.15/drivers/usb/host/
H A Dxhci-hub.c77 if ((port_cap->psi[i] & PLT_MASK) == PLT_SYM) in xhci_create_usb3x_bos_desc()
150 u32 psi; in xhci_create_usb3x_bos_desc() local
160 psi = port_cap->psi[i]; in xhci_create_usb3x_bos_desc()
161 ssid = XHCI_EXT_PORT_PSIV(psi); in xhci_create_usb3x_bos_desc()
162 lp = XHCI_EXT_PORT_LP(psi); in xhci_create_usb3x_bos_desc()
163 psie = XHCI_EXT_PORT_PSIE(psi); in xhci_create_usb3x_bos_desc()
164 psim = XHCI_EXT_PORT_PSIM(psi); in xhci_create_usb3x_bos_desc()
165 plt = psi & PLT_MASK; in xhci_create_usb3x_bos_desc()
201 u32 prev = port_cap->psi[i - 1]; in xhci_create_usb3x_bos_desc()
H A Dxhci-mem.c1943 kfree(xhci->port_caps[i].psi); in xhci_mem_cleanup()
2040 sizeof(*port_cap->psi), in xhci_add_in_port()
2042 if (!port_cap->psi) in xhci_add_in_port()
2047 port_cap->psi[i] = readl(addr + 4 + i); in xhci_add_in_port()
2053 XHCI_EXT_PORT_PSIV(port_cap->psi[i - 1]))) in xhci_add_in_port()
2062 XHCI_EXT_PORT_PSIV(port_cap->psi[i]), in xhci_add_in_port()
2063 XHCI_EXT_PORT_PSIE(port_cap->psi[i]), in xhci_add_in_port()
2064 XHCI_EXT_PORT_PLT(port_cap->psi[i]), in xhci_add_in_port()
2065 XHCI_EXT_PORT_PFD(port_cap->psi[i]), in xhci_add_in_port()
2066 XHCI_EXT_PORT_LP(port_cap->psi[i]), in xhci_add_in_port()
[all …]
/linux-6.15/kernel/cgroup/
H A Dcgroup.c3849 return psi_show(seq, psi, PSI_IO); in cgroup_io_pressure_show()
3856 return psi_show(seq, psi, PSI_MEM); in cgroup_memory_pressure_show()
3863 return psi_show(seq, psi, PSI_CPU); in cgroup_cpu_pressure_show()
3872 struct psi_group *psi; in pressure_write() local
3882 if (ctx->psi.trigger) { in pressure_write()
3887 psi = cgroup_psi(cgrp); in pressure_write()
3955 struct psi_group *psi; in cgroup_pressure_write() local
3968 psi = cgroup_psi(cgrp); in cgroup_pressure_write()
3969 if (psi->enabled != enable) { in cgroup_pressure_write()
3976 psi->enabled = enable; in cgroup_pressure_write()
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H A Dcgroup-internal.h74 } psi; member
/linux-6.15/drivers/acpi/apei/
H A Derst.c1016 static int erst_open_pstore(struct pstore_info *psi);
1017 static int erst_close_pstore(struct pstore_info *psi);
1054 static int erst_open_pstore(struct pstore_info *psi) in erst_open_pstore() argument
1062 static int erst_close_pstore(struct pstore_info *psi) in erst_close_pstore() argument
/linux-6.15/arch/powerpc/kvm/
H A Dbook3s_64_mmu_radix.c319 int psi; in kvmppc_radix_tlbie_page() local
335 psi = shift_to_mmu_psize(pshift); in kvmppc_radix_tlbie_page()
338 rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58)); in kvmppc_radix_tlbie_page()
345 psize_to_rpti_pgsize(psi), in kvmppc_radix_tlbie_page()
/linux-6.15/drivers/infiniband/hw/hfi1/
H A 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()
2057 if (nports != 1 || smp_length_check(sizeof(*psi), max_len)) { in __subn_set_opa_psi()
2067 ls_new = port_states_to_logical_state(&psi->port_states); in __subn_set_opa_psi()
[all …]
/linux-6.15/arch/powerpc/kernel/
H A Dnvram_64.c370 static int nvram_pstore_open(struct pstore_info *psi) in nvram_pstore_open() argument
/linux-6.15/Documentation/driver-api/usb/
H A Dwriting_usb_driver.rst326 https://lmu.web.psi.ch/docu/manuals/software_manuals/linux_sl/usb_linux_programming_guide.pdf

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