From e38e0cfa48ac38f4fe24453d2523852467c95b21 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 10 Oct 2005 11:59:52 +0200 Subject: [ALSA] Remove kmalloc wrappers Modules: ALSA Core Remove kmalloc wrappers. Signed-off-by: Takashi Iwai --- sound/core/memory.c | 163 +--------------------------------------------------- 1 file changed, 2 insertions(+), 161 deletions(-) (limited to 'sound/core/memory.c') diff --git a/sound/core/memory.c b/sound/core/memory.c index b99343616f8..862d62d2e14 100644 --- a/sound/core/memory.c +++ b/sound/core/memory.c @@ -1,7 +1,7 @@ /* * Copyright (c) by Jaroslav Kysela * - * Memory allocation helpers. + * Misc memory accessors * * * This program is free software; you can redistribute it and/or modify @@ -20,168 +20,9 @@ * */ -#include +#include #include #include -#include -#include -#include -#include -#include -#include - -/* - * memory allocation helpers and debug routines - */ - -#ifdef CONFIG_SND_DEBUG_MEMORY - -struct snd_alloc_track { - unsigned long magic; - void *caller; - size_t size; - struct list_head list; - long data[0]; -}; - -#define snd_alloc_track_entry(obj) (struct snd_alloc_track *)((char*)obj - (unsigned long)((struct snd_alloc_track *)0)->data) - -static long snd_alloc_kmalloc; -static LIST_HEAD(snd_alloc_kmalloc_list); -static DEFINE_SPINLOCK(snd_alloc_kmalloc_lock); -#define KMALLOC_MAGIC 0x87654321 -static snd_info_entry_t *snd_memory_info_entry; - -void __init snd_memory_init(void) -{ - snd_alloc_kmalloc = 0; -} - -void snd_memory_done(void) -{ - struct list_head *head; - struct snd_alloc_track *t; - - if (snd_alloc_kmalloc > 0) - snd_printk(KERN_ERR "Not freed snd_alloc_kmalloc = %li\n", snd_alloc_kmalloc); - list_for_each_prev(head, &snd_alloc_kmalloc_list) { - t = list_entry(head, struct snd_alloc_track, list); - if (t->magic != KMALLOC_MAGIC) { - snd_printk(KERN_ERR "Corrupted kmalloc\n"); - break; - } - snd_printk(KERN_ERR "kmalloc(%ld) from %p not freed\n", (long) t->size, t->caller); - } -} - -static void *__snd_kmalloc(size_t size, gfp_t flags, void *caller) -{ - unsigned long cpu_flags; - struct snd_alloc_track *t; - void *ptr; - - ptr = snd_wrapper_kmalloc(size + sizeof(struct snd_alloc_track), flags); - if (ptr != NULL) { - t = (struct snd_alloc_track *)ptr; - t->magic = KMALLOC_MAGIC; - t->caller = caller; - spin_lock_irqsave(&snd_alloc_kmalloc_lock, cpu_flags); - list_add_tail(&t->list, &snd_alloc_kmalloc_list); - spin_unlock_irqrestore(&snd_alloc_kmalloc_lock, cpu_flags); - t->size = size; - snd_alloc_kmalloc += size; - ptr = t->data; - } - return ptr; -} - -#define _snd_kmalloc(size, flags) __snd_kmalloc((size), (flags), __builtin_return_address(0)); -void *snd_hidden_kmalloc(size_t size, gfp_t flags) -{ - return _snd_kmalloc(size, flags); -} - -void *snd_hidden_kzalloc(size_t size, gfp_t flags) -{ - void *ret = _snd_kmalloc(size, flags); - if (ret) - memset(ret, 0, size); - return ret; -} -EXPORT_SYMBOL(snd_hidden_kzalloc); - -void *snd_hidden_kcalloc(size_t n, size_t size, gfp_t flags) -{ - void *ret = NULL; - if (n != 0 && size > INT_MAX / n) - return ret; - return snd_hidden_kzalloc(n * size, flags); -} - -void snd_hidden_kfree(const void *obj) -{ - unsigned long flags; - struct snd_alloc_track *t; - if (obj == NULL) - return; - t = snd_alloc_track_entry(obj); - if (t->magic != KMALLOC_MAGIC) { - snd_printk(KERN_WARNING "bad kfree (called from %p)\n", __builtin_return_address(0)); - return; - } - spin_lock_irqsave(&snd_alloc_kmalloc_lock, flags); - list_del(&t->list); - spin_unlock_irqrestore(&snd_alloc_kmalloc_lock, flags); - t->magic = 0; - snd_alloc_kmalloc -= t->size; - obj = t; - snd_wrapper_kfree(obj); -} - -char *snd_hidden_kstrdup(const char *s, gfp_t flags) -{ - int len; - char *buf; - - if (!s) return NULL; - - len = strlen(s) + 1; - buf = _snd_kmalloc(len, flags); - if (buf) - memcpy(buf, s, len); - return buf; -} - -static void snd_memory_info_read(snd_info_entry_t *entry, snd_info_buffer_t * buffer) -{ - snd_iprintf(buffer, "kmalloc: %li bytes\n", snd_alloc_kmalloc); -} - -int __init snd_memory_info_init(void) -{ - snd_info_entry_t *entry; - - entry = snd_info_create_module_entry(THIS_MODULE, "meminfo", NULL); - if (entry) { - entry->c.text.read_size = 256; - entry->c.text.read = snd_memory_info_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - entry = NULL; - } - } - snd_memory_info_entry = entry; - return 0; -} - -int __exit snd_memory_info_done(void) -{ - if (snd_memory_info_entry) - snd_info_unregister(snd_memory_info_entry); - return 0; -} - -#endif /* CONFIG_SND_DEBUG_MEMORY */ /** * copy_to_user_fromio - copy data from mmio-space to user-space -- cgit v1.2.3