Function report |
Source Code:arch\x86\kernel\cpu\resctrl\rdtgroup.c |
Create Date:2022-07-28 08:11:44 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
home page | Tree |
Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:rdt_get_tree
Proto:static int rdt_get_tree(struct fs_context *fc)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct fs_context * | fc |
1946 | ctx = rdt_fc2context(fc) |
1951 | cpus_read_lock() |
1952 | mutex_lock( & Mutex to protect rdtgroup access. ) |
1956 | If static_branch_unlikely( & rdt_enable_key) Then |
1961 | ret = rdt_enable_ctx(ctx) |
1965 | closid_init() |
1967 | ret = rdtgroup_create_info_dir(kn) |
1971 | If rdt_mon_capable Then |
1972 | ret = mongroup_create_dir(kn, & rdtgroup_default, "mon_groups", & Kernel fs node for "mon_groups" directory under root ) |
1981 | If ret < 0 Then Go to out_mongrp |
1987 | ret = rdt_pseudo_lock_init() |
1988 | If ret Then Go to out_mondata |
1991 | ret = kernfs_get_tree(fc) |
1995 | If Global boolean for rdt_alloc which is true if any* resource allocation is enabled. Then static_branch_enable_cpuslocked( & rdt_alloc_enable_key) |
1997 | If rdt_mon_capable Then static_branch_enable_cpuslocked( & rdt_mon_enable_key) |
2000 | If Global boolean for rdt_alloc which is true if any* resource allocation is enabled. || rdt_mon_capable Then static_branch_enable_cpuslocked( & rdt_enable_key) |
2003 | If is_mbm_enabled() Then |
2004 | r = rdt_resources_all[RDT_RESOURCE_L3] |
2009 | Go to out |
2011 | out_psl : |
2012 | rdt_pseudo_lock_release() |
2013 | out_mondata : |
2016 | out_mongrp : |
2019 | out_info : |
2021 | out_mba : |
2024 | out_cdp : |
2025 | cdp_disable_all() |
2026 | out : |
2027 | rdt_last_cmd_clear() |
2029 | cpus_read_unlock() |
2030 | Return ret |
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