From d6e103e6950d99b88141d4b26982889258c774c5 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 27 May 2020 13:27:59 -0400 Subject: [PATCH 1/1] LU-9441 llite: bind kthread thread to accepted node set Bind both the agl and statahead kernel threads to a node that is apart of the cpt table that Lustre use. This limits the polluting of the cache of HPC applications. Change-Id: I1c29fb5dbbdb6a73dac0dc6c872a797c05eab1ad Signed-off-by: James Simmons Reviewed-on: https://review.whamcloud.com/38730 Tested-by: jenkins Tested-by: Maloo Reviewed-by: Yang Sheng Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin --- lustre/llite/statahead.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/lustre/llite/statahead.c b/lustre/llite/statahead.c index 7752b45..7cd9df5 100644 --- a/lustre/llite/statahead.c +++ b/lustre/llite/statahead.c @@ -975,8 +975,9 @@ static void ll_stop_agl(struct ll_statahead_info *sai) /* start agl thread */ static void ll_start_agl(struct dentry *parent, struct ll_statahead_info *sai) { - struct ll_inode_info *plli; - struct task_struct *task; + int node = cfs_cpt_spread_node(cfs_cpt_tab, CFS_CPT_ANY); + struct ll_inode_info *plli; + struct task_struct *task; ENTRY; @@ -984,8 +985,8 @@ static void ll_start_agl(struct dentry *parent, struct ll_statahead_info *sai) sai, parent); plli = ll_i2info(parent->d_inode); - task = kthread_create(ll_agl_thread, parent, - "ll_agl_%u", plli->lli_opendir_pid); + task = kthread_create_on_node(ll_agl_thread, parent, node, "ll_agl_%d", + plli->lli_opendir_pid); if (IS_ERR(task)) { CERROR("can't start ll_agl thread, rc: %ld\n", PTR_ERR(task)); sai->sai_agl_valid = 0; @@ -1558,6 +1559,7 @@ out: static int start_statahead_thread(struct inode *dir, struct dentry *dentry, bool agl) { + int node = cfs_cpt_spread_node(cfs_cpt_tab, CFS_CPT_ANY); struct ll_inode_info *lli = ll_i2info(dir); struct ll_statahead_info *sai = NULL; struct dentry *parent = dentry->d_parent; @@ -1605,8 +1607,8 @@ static int start_statahead_thread(struct inode *dir, struct dentry *dentry, CDEBUG(D_READA, "start statahead thread: [pid %d] [parent %pd]\n", current->pid, parent); - task = kthread_create(ll_statahead_thread, parent, "ll_sa_%u", - lli->lli_opendir_pid); + task = kthread_create_on_node(ll_statahead_thread, parent, node, + "ll_sa_%u", lli->lli_opendir_pid); if (IS_ERR(task)) { spin_lock(&lli->lli_sa_lock); lli->lli_sai = NULL; -- 1.8.3.1