From: Byungchul Park <max.byungchul.park@gmail.com> To: linux-kernel@vger.kernel.org Cc: torvalds@linux-foundation.org, damien.lemoal@opensource.wdc.com, linux-ide@vger.kernel.org, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, will@kernel.org, tglx@linutronix.de, rostedt@goodmis.org, joel@joelfernandes.org, sashal@kernel.org, daniel.vetter@ffwll.ch, duyuyang@gmail.com, johannes.berg@intel.com, tj@kernel.org, tytso@mit.edu, willy@infradead.org, david@fromorbit.com, amir73il@gmail.com, gregkh@linuxfoundation.org, kernel-team@lge.com, linux-mm@kvack.org, akpm@linux-foundation.org, mhocko@kernel.org, minchan@kernel.org, hannes@cmpxchg.org, vdavydov.dev@gmail.com, sj@kernel.org, jglisse@redhat.com, dennis@kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, vbabka@suse.cz, ngupta@vflare.org, linux-block@vger.kernel.org, paolo.valente@linaro.org, josef@toxicpanda.com, linux-fsdevel@vger.kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz, jlayton@kernel.org, dan.j.williams@intel.com, hch@infradead.org, djwong@kernel.org, dri-devel@lists.freedesktop.org, rodrigosiqueiramelo@gmail.com, melissa.srw@gmail.com, hamohammed.sa@gmail.com, 42.hyeyoo@gmail.com, chris.p.wilson@intel.com, gwan-gyeong.mun@intel.com, max.byungchul.park@gmail.com, boqun.feng@gmail.com, longman@redhat.com, hdanton@sina.com Subject: [PATCH v8 14/25] dept: Add a mechanism to refill the internal memory pools on running out Date: Fri, 27 Jan 2023 10:19:07 +0900 [thread overview] Message-ID: <1674782358-25542-15-git-send-email-max.byungchul.park@gmail.com> (raw) In-Reply-To: <1674782358-25542-1-git-send-email-max.byungchul.park@gmail.com> Dept engine works in a constrained environment. For example, Dept cannot make use of dynamic allocation e.g. kmalloc(). So Dept has been using static pools to keep memory chunks Dept uses. However, Dept would barely work once any of the pools gets run out. So implemented a mechanism for the refill on the lack by any chance, using irq work and workqueue that fits on the contrained environment. Signed-off-by: Byungchul Park <max.byungchul.park@gmail.com> --- include/linux/dept.h | 19 ++++++-- kernel/dependency/dept.c | 104 ++++++++++++++++++++++++++++++++++------ kernel/dependency/dept_object.h | 10 ++-- kernel/dependency/dept_proc.c | 8 ++-- 4 files changed, 112 insertions(+), 29 deletions(-) diff --git a/include/linux/dept.h b/include/linux/dept.h index 88cb5ab..9d06628 100644 --- a/include/linux/dept.h +++ b/include/linux/dept.h @@ -336,9 +336,19 @@ struct dept_pool { size_t obj_sz; /* - * the number of the static array + * the remaining number of the object in spool */ - atomic_t obj_nr; + int obj_nr; + + /* + * the number of the object in spool + */ + int tot_nr; + + /* + * accumulated amount of memory used by the object in byte + */ + atomic_t acc_sz; /* * offset of ->pool_node @@ -348,9 +358,10 @@ struct dept_pool { /* * pointer to the pool */ - void *spool; + void *spool; /* static pool */ + void *rpool; /* reserved pool */ struct llist_head boot_pool; - struct llist_head __percpu *lpool; + struct llist_head __percpu *lpool; /* local pool */ }; struct dept_ecxt_held { diff --git a/kernel/dependency/dept.c b/kernel/dependency/dept.c index 711bd86..f32301b 100644 --- a/kernel/dependency/dept.c +++ b/kernel/dependency/dept.c @@ -73,6 +73,9 @@ #include <linux/hash.h> #include <linux/dept.h> #include <linux/utsname.h> +#include <linux/workqueue.h> +#include <linux/irq_work.h> +#include <linux/vmalloc.h> #include "dept_internal.h" static int dept_stop; @@ -121,10 +124,12 @@ WARN(1, "DEPT_STOP: " s); \ }) -#define DEPT_INFO_ONCE(s...) pr_warn_once("DEPT_INFO_ONCE: " s) +#define DEPT_INFO_ONCE(s...) pr_warn_once("DEPT_INFO_ONCE: " s) +#define DEPT_INFO(s...) pr_warn("DEPT_INFO: " s) static arch_spinlock_t dept_spin = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; static arch_spinlock_t stage_spin = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; +static arch_spinlock_t dept_pool_spin = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; /* * DEPT internal engine should be careful in using outside functions @@ -263,6 +268,7 @@ static inline bool valid_key(struct dept_key *k) #define OBJECT(id, nr) \ static struct dept_##id spool_##id[nr]; \ +static struct dept_##id rpool_##id[nr]; \ static DEFINE_PER_CPU(struct llist_head, lpool_##id); #include "dept_object.h" #undef OBJECT @@ -271,14 +277,70 @@ struct dept_pool dept_pool[OBJECT_NR] = { #define OBJECT(id, nr) { \ .name = #id, \ .obj_sz = sizeof(struct dept_##id), \ - .obj_nr = ATOMIC_INIT(nr), \ + .obj_nr = nr, \ + .tot_nr = nr, \ + .acc_sz = ATOMIC_INIT(sizeof(spool_##id) + sizeof(rpool_##id)), \ .node_off = offsetof(struct dept_##id, pool_node), \ .spool = spool_##id, \ + .rpool = rpool_##id, \ .lpool = &lpool_##id, }, #include "dept_object.h" #undef OBJECT }; +static void dept_wq_work_fn(struct work_struct *work) +{ + int i; + + for (i = 0; i < OBJECT_NR; i++) { + struct dept_pool *p = dept_pool + i; + int sz = p->tot_nr * p->obj_sz; + void *rpool; + bool need; + + arch_spin_lock(&dept_pool_spin); + need = !p->rpool; + arch_spin_unlock(&dept_pool_spin); + + if (!need) + continue; + + rpool = vmalloc(sz); + + if (!rpool) { + DEPT_STOP("Failed to extend internal resources.\n"); + break; + } + + arch_spin_lock(&dept_pool_spin); + if (!p->rpool) { + p->rpool = rpool; + rpool = NULL; + atomic_add(sz, &p->acc_sz); + } + arch_spin_unlock(&dept_pool_spin); + + if (rpool) + vfree(rpool); + else + DEPT_INFO("Dept object(%s) just got refilled successfully.\n", p->name); + } +} + +static DECLARE_WORK(dept_wq_work, dept_wq_work_fn); + +static void dept_irq_work_fn(struct irq_work *w) +{ + schedule_work(&dept_wq_work); +} + +static DEFINE_IRQ_WORK(dept_irq_work, dept_irq_work_fn); + +static void request_rpool_refill(void) +{ + irq_work_queue(&dept_irq_work); +} + /* * Can use llist no matter whether CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG is * enabled or not because NMI and other contexts in the same CPU never @@ -314,19 +376,31 @@ static void *from_pool(enum object_t t) /* * Try static pool. */ - if (atomic_read(&p->obj_nr) > 0) { - int idx = atomic_dec_return(&p->obj_nr); + arch_spin_lock(&dept_pool_spin); + + if (!p->obj_nr) { + p->spool = p->rpool; + p->obj_nr = p->rpool ? p->tot_nr : 0; + p->rpool = NULL; + request_rpool_refill(); + } + + if (p->obj_nr) { + void *ret; + + p->obj_nr--; + ret = p->spool + (p->obj_nr * p->obj_sz); + arch_spin_unlock(&dept_pool_spin); - if (idx >= 0) - return p->spool + (idx * p->obj_sz); + return ret; } + arch_spin_unlock(&dept_pool_spin); - DEPT_INFO_ONCE("---------------------------------------------\n" - " Some of Dept internal resources are run out.\n" - " Dept might still work if the resources get freed.\n" - " However, the chances are Dept will suffer from\n" - " the lack from now. Needs to extend the internal\n" - " resource pools. Ask max.byungchul.park@gmail.com\n"); + DEPT_INFO("------------------------------------------\n" + " Dept object(%s) is run out.\n" + " Dept is trying to refill the object.\n" + " Nevertheless, if it fails, Dept will stop.\n", + p->name); return NULL; } @@ -2977,8 +3051,8 @@ void __init dept_init(void) pr_info("... DEPT_MAX_ECXT_HELD : %d\n", DEPT_MAX_ECXT_HELD); pr_info("... DEPT_MAX_SUBCLASSES : %d\n", DEPT_MAX_SUBCLASSES); #define OBJECT(id, nr) \ - pr_info("... memory used by %s: %zu KB\n", \ - #id, B2KB(sizeof(struct dept_##id) * nr)); + pr_info("... memory initially used by %s: %zu KB\n", \ + #id, B2KB(sizeof(spool_##id) + sizeof(rpool_##id))); #include "dept_object.h" #undef OBJECT #define HASH(id, bits) \ @@ -2986,6 +3060,6 @@ void __init dept_init(void) #id, B2KB(sizeof(struct hlist_head) * (1 << (bits)))); #include "dept_hash.h" #undef HASH - pr_info("... total memory used by objects and hashs: %zu KB\n", B2KB(mem_total)); + pr_info("... total memory initially used by objects and hashs: %zu KB\n", B2KB(mem_total)); pr_info("... per task memory footprint: %zu bytes\n", sizeof(struct dept_task)); } diff --git a/kernel/dependency/dept_object.h b/kernel/dependency/dept_object.h index 0b7eb16..4f936ad 100644 --- a/kernel/dependency/dept_object.h +++ b/kernel/dependency/dept_object.h @@ -6,8 +6,8 @@ * nr: # of the object that should be kept in the pool. */ -OBJECT(dep, 1024 * 8) -OBJECT(class, 1024 * 8) -OBJECT(stack, 1024 * 32) -OBJECT(ecxt, 1024 * 16) -OBJECT(wait, 1024 * 32) +OBJECT(dep, 1024 * 4 * 2) +OBJECT(class, 1024 * 4) +OBJECT(stack, 1024 * 4 * 8) +OBJECT(ecxt, 1024 * 4 * 2) +OBJECT(wait, 1024 * 4 * 4) diff --git a/kernel/dependency/dept_proc.c b/kernel/dependency/dept_proc.c index 7d61dfb..f07a512 100644 --- a/kernel/dependency/dept_proc.c +++ b/kernel/dependency/dept_proc.c @@ -73,12 +73,10 @@ static int dept_stats_show(struct seq_file *m, void *v) { int r; - seq_puts(m, "Availability in the static pools:\n\n"); + seq_puts(m, "Accumulated amount of memory used by pools:\n\n"); #define OBJECT(id, nr) \ - r = atomic_read(&dept_pool[OBJECT_##id].obj_nr); \ - if (r < 0) \ - r = 0; \ - seq_printf(m, "%s\t%d/%d(%d%%)\n", #id, r, nr, (r * 100) / (nr)); + r = atomic_read(&dept_pool[OBJECT_##id].acc_sz); \ + seq_printf(m, "%s\t%d KB\n", #id, r / 1024); #include "dept_object.h" #undef OBJECT -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Byungchul Park <max.byungchul.park@gmail.com> To: linux-kernel@vger.kernel.org Cc: hamohammed.sa@gmail.com, hdanton@sina.com, jack@suse.cz, peterz@infradead.org, daniel.vetter@ffwll.ch, amir73il@gmail.com, david@fromorbit.com, dri-devel@lists.freedesktop.org, mhocko@kernel.org, linux-mm@kvack.org, linux-ide@vger.kernel.org, adilger.kernel@dilger.ca, chris.p.wilson@intel.com, joel@joelfernandes.org, 42.hyeyoo@gmail.com, cl@linux.com, will@kernel.org, duyuyang@gmail.com, sashal@kernel.org, paolo.valente@linaro.org, damien.lemoal@opensource.wdc.com, willy@infradead.org, hch@infradead.org, mingo@redhat.com, djwong@kernel.org, vdavydov.dev@gmail.com, rientjes@google.com, dennis@kernel.org, linux-ext4@vger.kernel.org, ngupta@vflare.org, johannes.berg@intel.com, boqun.feng@gmail.com, dan.j.williams@intel.com, josef@toxicpanda.com, rostedt@goodmis.org, gwan-gyeong.mun@intel.com, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, jglisse@redhat.com, viro@zeniv.linux.org.uk, longman@redhat.com, tglx@linutronix.de, vbabka@suse.cz, melissa.srw@gmail.com, sj@kernel.org, tytso@mit.edu, rodrigosiqueiramelo@gmail.com, kernel-team@lge.com, gregkh@linuxfoundation.org, jlayton@kernel.org, penberg@kernel.org, minchan@kernel.org, max.byungchul.park@gmail.com, hannes@cmpxchg.org, tj@kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org Subject: [PATCH v8 14/25] dept: Add a mechanism to refill the internal memory pools on running out Date: Fri, 27 Jan 2023 10:19:07 +0900 [thread overview] Message-ID: <1674782358-25542-15-git-send-email-max.byungchul.park@gmail.com> (raw) In-Reply-To: <1674782358-25542-1-git-send-email-max.byungchul.park@gmail.com> Dept engine works in a constrained environment. For example, Dept cannot make use of dynamic allocation e.g. kmalloc(). So Dept has been using static pools to keep memory chunks Dept uses. However, Dept would barely work once any of the pools gets run out. So implemented a mechanism for the refill on the lack by any chance, using irq work and workqueue that fits on the contrained environment. Signed-off-by: Byungchul Park <max.byungchul.park@gmail.com> --- include/linux/dept.h | 19 ++++++-- kernel/dependency/dept.c | 104 ++++++++++++++++++++++++++++++++++------ kernel/dependency/dept_object.h | 10 ++-- kernel/dependency/dept_proc.c | 8 ++-- 4 files changed, 112 insertions(+), 29 deletions(-) diff --git a/include/linux/dept.h b/include/linux/dept.h index 88cb5ab..9d06628 100644 --- a/include/linux/dept.h +++ b/include/linux/dept.h @@ -336,9 +336,19 @@ struct dept_pool { size_t obj_sz; /* - * the number of the static array + * the remaining number of the object in spool */ - atomic_t obj_nr; + int obj_nr; + + /* + * the number of the object in spool + */ + int tot_nr; + + /* + * accumulated amount of memory used by the object in byte + */ + atomic_t acc_sz; /* * offset of ->pool_node @@ -348,9 +358,10 @@ struct dept_pool { /* * pointer to the pool */ - void *spool; + void *spool; /* static pool */ + void *rpool; /* reserved pool */ struct llist_head boot_pool; - struct llist_head __percpu *lpool; + struct llist_head __percpu *lpool; /* local pool */ }; struct dept_ecxt_held { diff --git a/kernel/dependency/dept.c b/kernel/dependency/dept.c index 711bd86..f32301b 100644 --- a/kernel/dependency/dept.c +++ b/kernel/dependency/dept.c @@ -73,6 +73,9 @@ #include <linux/hash.h> #include <linux/dept.h> #include <linux/utsname.h> +#include <linux/workqueue.h> +#include <linux/irq_work.h> +#include <linux/vmalloc.h> #include "dept_internal.h" static int dept_stop; @@ -121,10 +124,12 @@ WARN(1, "DEPT_STOP: " s); \ }) -#define DEPT_INFO_ONCE(s...) pr_warn_once("DEPT_INFO_ONCE: " s) +#define DEPT_INFO_ONCE(s...) pr_warn_once("DEPT_INFO_ONCE: " s) +#define DEPT_INFO(s...) pr_warn("DEPT_INFO: " s) static arch_spinlock_t dept_spin = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; static arch_spinlock_t stage_spin = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; +static arch_spinlock_t dept_pool_spin = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; /* * DEPT internal engine should be careful in using outside functions @@ -263,6 +268,7 @@ static inline bool valid_key(struct dept_key *k) #define OBJECT(id, nr) \ static struct dept_##id spool_##id[nr]; \ +static struct dept_##id rpool_##id[nr]; \ static DEFINE_PER_CPU(struct llist_head, lpool_##id); #include "dept_object.h" #undef OBJECT @@ -271,14 +277,70 @@ struct dept_pool dept_pool[OBJECT_NR] = { #define OBJECT(id, nr) { \ .name = #id, \ .obj_sz = sizeof(struct dept_##id), \ - .obj_nr = ATOMIC_INIT(nr), \ + .obj_nr = nr, \ + .tot_nr = nr, \ + .acc_sz = ATOMIC_INIT(sizeof(spool_##id) + sizeof(rpool_##id)), \ .node_off = offsetof(struct dept_##id, pool_node), \ .spool = spool_##id, \ + .rpool = rpool_##id, \ .lpool = &lpool_##id, }, #include "dept_object.h" #undef OBJECT }; +static void dept_wq_work_fn(struct work_struct *work) +{ + int i; + + for (i = 0; i < OBJECT_NR; i++) { + struct dept_pool *p = dept_pool + i; + int sz = p->tot_nr * p->obj_sz; + void *rpool; + bool need; + + arch_spin_lock(&dept_pool_spin); + need = !p->rpool; + arch_spin_unlock(&dept_pool_spin); + + if (!need) + continue; + + rpool = vmalloc(sz); + + if (!rpool) { + DEPT_STOP("Failed to extend internal resources.\n"); + break; + } + + arch_spin_lock(&dept_pool_spin); + if (!p->rpool) { + p->rpool = rpool; + rpool = NULL; + atomic_add(sz, &p->acc_sz); + } + arch_spin_unlock(&dept_pool_spin); + + if (rpool) + vfree(rpool); + else + DEPT_INFO("Dept object(%s) just got refilled successfully.\n", p->name); + } +} + +static DECLARE_WORK(dept_wq_work, dept_wq_work_fn); + +static void dept_irq_work_fn(struct irq_work *w) +{ + schedule_work(&dept_wq_work); +} + +static DEFINE_IRQ_WORK(dept_irq_work, dept_irq_work_fn); + +static void request_rpool_refill(void) +{ + irq_work_queue(&dept_irq_work); +} + /* * Can use llist no matter whether CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG is * enabled or not because NMI and other contexts in the same CPU never @@ -314,19 +376,31 @@ static void *from_pool(enum object_t t) /* * Try static pool. */ - if (atomic_read(&p->obj_nr) > 0) { - int idx = atomic_dec_return(&p->obj_nr); + arch_spin_lock(&dept_pool_spin); + + if (!p->obj_nr) { + p->spool = p->rpool; + p->obj_nr = p->rpool ? p->tot_nr : 0; + p->rpool = NULL; + request_rpool_refill(); + } + + if (p->obj_nr) { + void *ret; + + p->obj_nr--; + ret = p->spool + (p->obj_nr * p->obj_sz); + arch_spin_unlock(&dept_pool_spin); - if (idx >= 0) - return p->spool + (idx * p->obj_sz); + return ret; } + arch_spin_unlock(&dept_pool_spin); - DEPT_INFO_ONCE("---------------------------------------------\n" - " Some of Dept internal resources are run out.\n" - " Dept might still work if the resources get freed.\n" - " However, the chances are Dept will suffer from\n" - " the lack from now. Needs to extend the internal\n" - " resource pools. Ask max.byungchul.park@gmail.com\n"); + DEPT_INFO("------------------------------------------\n" + " Dept object(%s) is run out.\n" + " Dept is trying to refill the object.\n" + " Nevertheless, if it fails, Dept will stop.\n", + p->name); return NULL; } @@ -2977,8 +3051,8 @@ void __init dept_init(void) pr_info("... DEPT_MAX_ECXT_HELD : %d\n", DEPT_MAX_ECXT_HELD); pr_info("... DEPT_MAX_SUBCLASSES : %d\n", DEPT_MAX_SUBCLASSES); #define OBJECT(id, nr) \ - pr_info("... memory used by %s: %zu KB\n", \ - #id, B2KB(sizeof(struct dept_##id) * nr)); + pr_info("... memory initially used by %s: %zu KB\n", \ + #id, B2KB(sizeof(spool_##id) + sizeof(rpool_##id))); #include "dept_object.h" #undef OBJECT #define HASH(id, bits) \ @@ -2986,6 +3060,6 @@ void __init dept_init(void) #id, B2KB(sizeof(struct hlist_head) * (1 << (bits)))); #include "dept_hash.h" #undef HASH - pr_info("... total memory used by objects and hashs: %zu KB\n", B2KB(mem_total)); + pr_info("... total memory initially used by objects and hashs: %zu KB\n", B2KB(mem_total)); pr_info("... per task memory footprint: %zu bytes\n", sizeof(struct dept_task)); } diff --git a/kernel/dependency/dept_object.h b/kernel/dependency/dept_object.h index 0b7eb16..4f936ad 100644 --- a/kernel/dependency/dept_object.h +++ b/kernel/dependency/dept_object.h @@ -6,8 +6,8 @@ * nr: # of the object that should be kept in the pool. */ -OBJECT(dep, 1024 * 8) -OBJECT(class, 1024 * 8) -OBJECT(stack, 1024 * 32) -OBJECT(ecxt, 1024 * 16) -OBJECT(wait, 1024 * 32) +OBJECT(dep, 1024 * 4 * 2) +OBJECT(class, 1024 * 4) +OBJECT(stack, 1024 * 4 * 8) +OBJECT(ecxt, 1024 * 4 * 2) +OBJECT(wait, 1024 * 4 * 4) diff --git a/kernel/dependency/dept_proc.c b/kernel/dependency/dept_proc.c index 7d61dfb..f07a512 100644 --- a/kernel/dependency/dept_proc.c +++ b/kernel/dependency/dept_proc.c @@ -73,12 +73,10 @@ static int dept_stats_show(struct seq_file *m, void *v) { int r; - seq_puts(m, "Availability in the static pools:\n\n"); + seq_puts(m, "Accumulated amount of memory used by pools:\n\n"); #define OBJECT(id, nr) \ - r = atomic_read(&dept_pool[OBJECT_##id].obj_nr); \ - if (r < 0) \ - r = 0; \ - seq_printf(m, "%s\t%d/%d(%d%%)\n", #id, r, nr, (r * 100) / (nr)); + r = atomic_read(&dept_pool[OBJECT_##id].acc_sz); \ + seq_printf(m, "%s\t%d KB\n", #id, r / 1024); #include "dept_object.h" #undef OBJECT -- 1.9.1
next prev parent reply other threads:[~2023-01-27 1:50 UTC|newest] Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-01-27 1:18 [PATCH v8 00/25] DEPT(Dependency Tracker) Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-27 1:18 ` [PATCH v8 01/25] llist: Move llist_{head,node} definition to types.h Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-27 1:18 ` [PATCH v8 02/25] dept: Implement Dept(Dependency Tracker) Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-27 1:18 ` [PATCH v8 03/25] dept: Add single event dependency tracker APIs Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-27 1:18 ` [PATCH v8 04/25] dept: Add lock " Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-27 1:18 ` [PATCH v8 05/25] dept: Tie to Lockdep and IRQ tracing Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-28 7:24 ` kernel test robot 2023-01-29 8:56 ` kernel test robot 2023-01-27 1:18 ` [PATCH v8 06/25] dept: Add proc knobs to show stats and dependency graph Byungchul Park 2023-01-27 1:18 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 07/25] dept: Apply sdt_might_sleep_{start,end}() to wait_for_completion()/complete() Byungchul Park 2023-01-27 1:19 ` [PATCH v8 07/25] dept: Apply sdt_might_sleep_{start, end}() " Byungchul Park 2023-01-27 1:19 ` [PATCH v8 08/25] dept: Apply sdt_might_sleep_{start,end}() to PG_{locked,writeback} wait Byungchul Park 2023-01-27 1:19 ` [PATCH v8 08/25] dept: Apply sdt_might_sleep_{start, end}() to PG_{locked, writeback} wait Byungchul Park 2023-01-27 1:19 ` [PATCH v8 09/25] dept: Apply sdt_might_sleep_{start,end}() to swait Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 10/25] dept: Apply sdt_might_sleep_{start,end}() to waitqueue wait Byungchul Park 2023-01-27 1:19 ` [PATCH v8 10/25] dept: Apply sdt_might_sleep_{start, end}() " Byungchul Park 2023-01-27 1:19 ` [PATCH v8 11/25] dept: Apply sdt_might_sleep_{start,end}() to hashed-waitqueue wait Byungchul Park 2023-01-27 1:19 ` [PATCH v8 11/25] dept: Apply sdt_might_sleep_{start, end}() " Byungchul Park 2023-01-27 1:19 ` [PATCH v8 12/25] dept: Distinguish each syscall context from another Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 13/25] dept: Distinguish each work " Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` Byungchul Park [this message] 2023-01-27 1:19 ` [PATCH v8 14/25] dept: Add a mechanism to refill the internal memory pools on running out Byungchul Park 2023-01-27 1:19 ` [PATCH v8 15/25] locking/lockdep, cpu/hotplus: Use a weaker annotation in AP thread Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 16/25] dept: Apply sdt_might_sleep_{start,end}() to dma fence wait Byungchul Park 2023-01-27 1:19 ` [PATCH v8 16/25] dept: Apply sdt_might_sleep_{start, end}() " Byungchul Park 2023-01-27 1:19 ` [PATCH v8 17/25] dept: Track timeout waits separately with a new Kconfig Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 18/25] dept: Apply timeout consideration to wait_for_completion()/complete() Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 19/25] dept: Apply timeout consideration to swait Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 20/25] dept: Apply timeout consideration to waitqueue wait Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 21/25] dept: Apply timeout consideration to hashed-waitqueue wait Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 22/25] dept: Apply timeout consideration to dma fence wait Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 23/25] dept: Record the latest one out of consecutive waits of the same class Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 24/25] dept: Make Dept able to work with an external wgen Byungchul Park 2023-01-27 1:19 ` Byungchul Park 2023-01-27 1:19 ` [PATCH v8 25/25] dept: Track the potential waits of PG_{locked,writeback} Byungchul Park 2023-01-27 1:19 ` [PATCH v8 25/25] dept: Track the potential waits of PG_{locked, writeback} Byungchul Park 2023-01-28 20:30 ` [PATCH v8 25/25] dept: Track the potential waits of PG_{locked,writeback} kernel test robot
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