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From: andrey.konovalov@linux.dev
To: Marco Elver <elver@google.com>, Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	kasan-dev@googlegroups.com, Evgenii Stepanov <eugenis@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Andrey Konovalov <andreyknvl@google.com>
Subject: [PATCH v2 04/18] lib/stackdepot: rename stack_depot_disable
Date: Fri, 10 Feb 2023 22:15:52 +0100	[thread overview]
Message-ID: <d78a07d222e689926e5ead229e4a2e3d87dc9aa7.1676063693.git.andreyknvl@google.com> (raw)
In-Reply-To: <cover.1676063693.git.andreyknvl@google.com>

From: Andrey Konovalov <andreyknvl@google.com>

Rename stack_depot_disable to stack_depot_disabled to make its name look
similar to the names of other stack depot flags.

Also put stack_depot_disabled's definition together with the other flags.

Also rename is_stack_depot_disabled to disable_stack_depot: this name
looks more conventional for a function that processes a boot parameter.

No functional changes.

Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/stackdepot.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index 136706efe339..202e07c4f02d 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -71,6 +71,7 @@ struct stack_record {
 	unsigned long entries[];	/* Variable-sized array of entries. */
 };
 
+static bool stack_depot_disabled;
 static bool __stack_depot_early_init_requested __initdata = IS_ENABLED(CONFIG_STACKDEPOT_ALWAYS_INIT);
 static bool __stack_depot_early_init_passed __initdata;
 
@@ -91,21 +92,20 @@ static DEFINE_RAW_SPINLOCK(depot_lock);
 static unsigned int stack_hash_order;
 static unsigned int stack_hash_mask;
 
-static bool stack_depot_disable;
 static struct stack_record **stack_table;
 
-static int __init is_stack_depot_disabled(char *str)
+static int __init disable_stack_depot(char *str)
 {
 	int ret;
 
-	ret = kstrtobool(str, &stack_depot_disable);
-	if (!ret && stack_depot_disable) {
+	ret = kstrtobool(str, &stack_depot_disabled);
+	if (!ret && stack_depot_disabled) {
 		pr_info("disabled\n");
 		stack_table = NULL;
 	}
 	return 0;
 }
-early_param("stack_depot_disable", is_stack_depot_disabled);
+early_param("stack_depot_disable", disable_stack_depot);
 
 void __init stack_depot_request_early_init(void)
 {
@@ -128,7 +128,7 @@ int __init stack_depot_early_init(void)
 	if (kasan_enabled() && !stack_hash_order)
 		stack_hash_order = STACK_HASH_ORDER_MAX;
 
-	if (!__stack_depot_early_init_requested || stack_depot_disable)
+	if (!__stack_depot_early_init_requested || stack_depot_disabled)
 		return 0;
 
 	if (stack_hash_order)
@@ -145,7 +145,7 @@ int __init stack_depot_early_init(void)
 
 	if (!stack_table) {
 		pr_err("hash table allocation failed, disabling\n");
-		stack_depot_disable = true;
+		stack_depot_disabled = true;
 		return -ENOMEM;
 	}
 
@@ -158,7 +158,7 @@ int stack_depot_init(void)
 	int ret = 0;
 
 	mutex_lock(&stack_depot_init_mutex);
-	if (!stack_depot_disable && !stack_table) {
+	if (!stack_depot_disabled && !stack_table) {
 		unsigned long entries;
 		int scale = STACK_HASH_SCALE;
 
@@ -184,7 +184,7 @@ int stack_depot_init(void)
 		stack_table = kvcalloc(entries, sizeof(struct stack_record *), GFP_KERNEL);
 		if (!stack_table) {
 			pr_err("hash table allocation failed, disabling\n");
-			stack_depot_disable = true;
+			stack_depot_disabled = true;
 			ret = -ENOMEM;
 		}
 		stack_hash_mask = entries - 1;
@@ -353,7 +353,7 @@ depot_stack_handle_t __stack_depot_save(unsigned long *entries,
 	 */
 	nr_entries = filter_irq_stacks(entries, nr_entries);
 
-	if (unlikely(nr_entries == 0) || stack_depot_disable)
+	if (unlikely(nr_entries == 0) || stack_depot_disabled)
 		goto fast_exit;
 
 	hash = hash_stack(entries, nr_entries);
-- 
2.25.1



  parent reply	other threads:[~2023-02-10 21:16 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-10 21:15 [PATCH v2 00/18] lib/stackdepot: fixes and clean-ups andrey.konovalov
2023-02-10 21:15 ` [PATCH v2 01/18] lib/stackdepot: put functions in logical order andrey.konovalov
2023-02-10 21:15 ` [PATCH v2 02/18] lib/stackdepot: use pr_fmt to define message format andrey.konovalov
2023-02-10 21:15 ` [PATCH v2 03/18] lib/stackdepot, mm: rename stack_depot_want_early_init andrey.konovalov
2023-02-10 21:15 ` andrey.konovalov [this message]
2023-02-10 21:15 ` [PATCH v2 05/18] lib/stackdepot: annotate init and early init functions andrey.konovalov
2023-02-10 21:15 ` [PATCH v2 06/18] lib/stackdepot: lower the indentation in stack_depot_init andrey.konovalov
2023-02-10 21:15 ` [PATCH v2 07/18] lib/stackdepot: reorder and annotate global variables andrey.konovalov
2023-02-13 10:33   ` Alexander Potapenko
2023-02-10 21:15 ` [PATCH v2 08/18] lib/stackdepot: rename hash table constants and variables andrey.konovalov
2023-02-13 10:34   ` Alexander Potapenko
2023-02-10 21:15 ` [PATCH v2 09/18] lib/stackdepot: rename slab to pool andrey.konovalov
2023-02-13 10:20   ` Vlastimil Babka
2023-02-13 10:35     ` Alexander Potapenko
2023-02-10 21:15 ` [PATCH v2 10/18] lib/stackdepot: rename handle and pool constants andrey.konovalov
2023-02-10 21:15 ` [PATCH v2 11/18] lib/stackdepot: rename init_stack_pool andrey.konovalov
2023-02-10 21:16 ` [PATCH v2 12/18] lib/stacktrace: drop impossible WARN_ON for depot_init_pool andrey.konovalov
2023-02-13 11:02   ` Alexander Potapenko
2023-02-10 21:16 ` [PATCH v2 13/18] lib/stackdepot: annotate depot_init_pool and depot_alloc_stack andrey.konovalov
2023-02-13 11:03   ` Alexander Potapenko
2023-02-10 21:16 ` [PATCH v2 14/18] lib/stackdepot: rename next_pool_inited to next_pool_required andrey.konovalov
2023-02-13 11:26   ` Alexander Potapenko
2023-02-10 21:16 ` [PATCH v2 15/18] lib/stacktrace, kasan, kmsan: rework extra_bits interface andrey.konovalov
2023-02-13 11:40   ` Alexander Potapenko
2023-02-10 21:16 ` [PATCH v2 16/18] lib/stackdepot: annotate racy pool_index accesses andrey.konovalov
2023-02-13 11:52   ` Alexander Potapenko
2023-02-10 21:16 ` [PATCH v2 17/18] lib/stackdepot: various comments clean-ups andrey.konovalov
2023-02-13 13:26   ` Alexander Potapenko
2023-02-17  9:46     ` Andrey Konovalov
2023-02-10 21:16 ` [PATCH v2 18/18] lib/stackdepot: move documentation comments to stackdepot.h andrey.konovalov
2023-02-13 13:27   ` Alexander Potapenko
2023-02-17  9:50     ` Andrey Konovalov

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