Messages in this thread Patch in this message | | | From | Xiaochen Shen <> | Subject | [PATCH 4/4] x86/resctrl: Clean up unused function parameter in mkdir path | Date | Thu, 9 Jan 2020 00:28:06 +0800 |
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Previous patch ("x86/resctrl: Fix a deadlock due to inaccurate active reference of kernfs node") changed the argument to rdtgroup_kn_lock_live()/rdtgroup_kn_unlock() within mkdir_rdt_prepare(). That change resulted in an unused function parameter to mkdir_rdt_prepare().
Clean up unused function parameter in mkdir_rdt_prepare() and its callers rdtgroup_mkdir_mon() and rdtgroup_mkdir_ctrl_mon().
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> --- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index 2c79fcd83271..8ebef16e10be 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -2648,7 +2648,6 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) } static int mkdir_rdt_prepare(struct kernfs_node *parent_kn, - struct kernfs_node *prgrp_kn, const char *name, umode_t mode, enum rdt_group_type rtype, struct rdtgroup **r) { @@ -2758,15 +2757,12 @@ static void mkdir_rdt_prepare_clean(struct rdtgroup *rgrp) * to monitor a subset of tasks and cpus in its parent ctrl_mon group. */ static int rdtgroup_mkdir_mon(struct kernfs_node *parent_kn, - struct kernfs_node *prgrp_kn, - const char *name, - umode_t mode) + const char *name, umode_t mode) { struct rdtgroup *rdtgrp, *prgrp; int ret; - ret = mkdir_rdt_prepare(parent_kn, prgrp_kn, name, mode, RDTMON_GROUP, - &rdtgrp); + ret = mkdir_rdt_prepare(parent_kn, name, mode, RDTMON_GROUP, &rdtgrp); if (ret) return ret; @@ -2788,7 +2784,6 @@ static int rdtgroup_mkdir_mon(struct kernfs_node *parent_kn, * to allocate and monitor resources. */ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn, - struct kernfs_node *prgrp_kn, const char *name, umode_t mode) { struct rdtgroup *rdtgrp; @@ -2796,8 +2791,7 @@ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn, u32 closid; int ret; - ret = mkdir_rdt_prepare(parent_kn, prgrp_kn, name, mode, RDTCTRL_GROUP, - &rdtgrp); + ret = mkdir_rdt_prepare(parent_kn, name, mode, RDTCTRL_GROUP, &rdtgrp); if (ret) return ret; @@ -2871,14 +2865,14 @@ static int rdtgroup_mkdir(struct kernfs_node *parent_kn, const char *name, * subdirectory */ if (rdt_alloc_capable && parent_kn == rdtgroup_default.kn) - return rdtgroup_mkdir_ctrl_mon(parent_kn, parent_kn, name, mode); + return rdtgroup_mkdir_ctrl_mon(parent_kn, name, mode); /* * If RDT monitoring is supported and the parent directory is a valid * "mon_groups" directory, add a monitoring subdirectory. */ if (rdt_mon_capable && is_mon_groups(parent_kn, name)) - return rdtgroup_mkdir_mon(parent_kn, parent_kn->parent, name, mode); + return rdtgroup_mkdir_mon(parent_kn, name, mode); return -EPERM; } -- 1.8.3.1
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