From 34ff636f322c6d5e4f0a52338fa63a7dff09a495 Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Sat, 18 Jul 2026 13:15:36 -0400 Subject: scftorture: Count single_rpc offline failures in statistics output scf_torture_stats_print() aggregates each invoker thread's counters into a local scf_statistics structure before printing, but the n_single_rpc_ofl field is missing from the aggregation loop. As a result, the "single_rpc_ofl" value printed in the statistics line is always zero, even when smp_call_function_single() invocations for the RPC test have failed due to offline CPUs and been counted by the invoker threads. Add the missing accumulation so that the printed value reflects the actual counts. Signed-off-by: Joel Fernandes Signed-off-by: Paul E. McKenney --- fs/dlm/memory.c | 179 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 fs/dlm/memory.c (limited to 'fs/dlm/memory.c') diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c new file mode 100644 index 000000000..ee55994ce --- /dev/null +++ b/fs/dlm/memory.c @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: GPL-2.0-only +/****************************************************************************** +******************************************************************************* +** +** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. +** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. +** +** +******************************************************************************* +******************************************************************************/ + +#include "dlm_internal.h" +#include "midcomms.h" +#include "lowcomms.h" +#include "config.h" +#include "memory.h" +#include "ast.h" + +static struct kmem_cache *writequeue_cache; +static struct kmem_cache *mhandle_cache; +static struct kmem_cache *msg_cache; +static struct kmem_cache *lkb_cache; +static struct kmem_cache *rsb_cache; +static struct kmem_cache *cb_cache; + + +int __init dlm_memory_init(void) +{ + writequeue_cache = dlm_lowcomms_writequeue_cache_create(); + if (!writequeue_cache) + goto out; + + mhandle_cache = dlm_midcomms_cache_create(); + if (!mhandle_cache) + goto mhandle; + + lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb), + __alignof__(struct dlm_lkb), 0, NULL); + if (!lkb_cache) + goto lkb; + + msg_cache = dlm_lowcomms_msg_cache_create(); + if (!msg_cache) + goto msg; + + rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb), + __alignof__(struct dlm_rsb), 0, NULL); + if (!rsb_cache) + goto rsb; + + cb_cache = kmem_cache_create_usercopy("dlm_cb", sizeof(struct dlm_callback), + __alignof__(struct dlm_callback), 0, + offsetof(struct dlm_callback, lvbptr), + sizeof_field(struct dlm_callback, lvbptr), + NULL); + if (!cb_cache) + goto cb; + + return 0; + +cb: + kmem_cache_destroy(rsb_cache); +rsb: + kmem_cache_destroy(msg_cache); +msg: + kmem_cache_destroy(lkb_cache); +lkb: + kmem_cache_destroy(mhandle_cache); +mhandle: + kmem_cache_destroy(writequeue_cache); +out: + return -ENOMEM; +} + +void dlm_memory_exit(void) +{ + rcu_barrier(); + + kmem_cache_destroy(writequeue_cache); + kmem_cache_destroy(mhandle_cache); + kmem_cache_destroy(msg_cache); + kmem_cache_destroy(lkb_cache); + kmem_cache_destroy(rsb_cache); + kmem_cache_destroy(cb_cache); +} + +char *dlm_allocate_lvb(struct dlm_ls *ls) +{ + return kzalloc(ls->ls_lvblen, GFP_ATOMIC); +} + +void dlm_free_lvb(char *p) +{ + kfree(p); +} + +struct dlm_rsb *dlm_allocate_rsb(void) +{ + return kmem_cache_zalloc(rsb_cache, GFP_ATOMIC); +} + +static void __free_rsb_rcu(struct rcu_head *rcu) +{ + struct dlm_rsb *r = container_of(rcu, struct dlm_rsb, rcu); + if (r->res_lvbptr) + dlm_free_lvb(r->res_lvbptr); + kmem_cache_free(rsb_cache, r); +} + +void dlm_free_rsb(struct dlm_rsb *r) +{ + call_rcu(&r->rcu, __free_rsb_rcu); +} + +struct dlm_lkb *dlm_allocate_lkb(void) +{ + return kmem_cache_zalloc(lkb_cache, GFP_ATOMIC); +} + +static void __free_lkb_rcu(struct rcu_head *rcu) +{ + struct dlm_lkb *lkb = container_of(rcu, struct dlm_lkb, rcu); + + if (test_bit(DLM_DFL_USER_BIT, &lkb->lkb_dflags)) { + struct dlm_user_args *ua; + ua = lkb->lkb_ua; + if (ua) { + kfree(ua->lksb.sb_lvbptr); + kfree(ua); + } + } + + kmem_cache_free(lkb_cache, lkb); +} + +void dlm_free_lkb(struct dlm_lkb *lkb) +{ + call_rcu(&lkb->rcu, __free_lkb_rcu); +} + +struct dlm_mhandle *dlm_allocate_mhandle(void) +{ + return kmem_cache_alloc(mhandle_cache, GFP_ATOMIC); +} + +void dlm_free_mhandle(struct dlm_mhandle *mhandle) +{ + kmem_cache_free(mhandle_cache, mhandle); +} + +struct writequeue_entry *dlm_allocate_writequeue(void) +{ + return kmem_cache_alloc(writequeue_cache, GFP_ATOMIC); +} + +void dlm_free_writequeue(struct writequeue_entry *writequeue) +{ + kmem_cache_free(writequeue_cache, writequeue); +} + +struct dlm_msg *dlm_allocate_msg(void) +{ + return kmem_cache_alloc(msg_cache, GFP_ATOMIC); +} + +void dlm_free_msg(struct dlm_msg *msg) +{ + kmem_cache_free(msg_cache, msg); +} + +struct dlm_callback *dlm_allocate_cb(void) +{ + return kmem_cache_alloc(cb_cache, GFP_ATOMIC); +} + +void dlm_free_cb(struct dlm_callback *cb) +{ + kmem_cache_free(cb_cache, cb); +} -- cgit v1.3.1