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pstore/ram_core: Remove now unused code

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The code tried to maintain the global list of persistent ram zones,
which isn't a great idea overall, plus since Android's ram_console
is no longer there, we can remove some unused functions.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anton Vorontsov 2012-05-26 06:20:27 -07:00 committed by Greg Kroah-Hartman
parent 958502d836
commit b8587daa75
2 changed files with 0 additions and 96 deletions
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77
fs/pstore/ram_core.c
View File

@ -35,8 +35,6 @@ struct persistent_ram_buffer {
#define PERSISTENT_RAM_SIG (0x43474244) /* DBGC */
static __initdata LIST_HEAD(persistent_ram_list);
static inline size_t buffer_size(struct persistent_ram_zone *prz)
{
return atomic_read(&prz->buffer->size);
@ -462,78 +460,3 @@ err:
kfree(prz);
return ERR_PTR(ret);
}
#ifndef MODULE
static int __init persistent_ram_buffer_init(const char *name,
struct persistent_ram_zone *prz)
{
int i;
struct persistent_ram *ram;
struct persistent_ram_descriptor *desc;
phys_addr_t start;
list_for_each_entry(ram, &persistent_ram_list, node) {
start = ram->start;
for (i = 0; i < ram->num_descs; i++) {
desc = &ram->descs[i];
if (!strcmp(desc->name, name))
return persistent_ram_buffer_map(start,
desc->size, prz);
start += desc->size;
}
}
return -EINVAL;
}
static __init
struct persistent_ram_zone *__persistent_ram_init(struct device *dev, bool ecc)
{
struct persistent_ram_zone *prz;
int ret = -ENOMEM;
prz = kzalloc(sizeof(struct persistent_ram_zone), GFP_KERNEL);
if (!prz) {
pr_err("persistent_ram: failed to allocate persistent ram zone\n");
goto err;
}
ret = persistent_ram_buffer_init(dev_name(dev), prz);
if (ret) {
pr_err("persistent_ram: failed to initialize buffer\n");
goto err;
}
persistent_ram_post_init(prz, ecc);
return prz;
err:
kfree(prz);
return ERR_PTR(ret);
}
struct persistent_ram_zone * __init
persistent_ram_init_ringbuffer(struct device *dev, bool ecc)
{
return __persistent_ram_init(dev, ecc);
}
int __init persistent_ram_early_init(struct persistent_ram *ram)
{
int ret;
ret = memblock_reserve(ram->start, ram->size);
if (ret) {
pr_err("Failed to reserve persistent memory from %08lx-%08lx\n",
(long)ram->start, (long)(ram->start + ram->size - 1));
return ret;
}
list_add_tail(&ram->node, &persistent_ram_list);
pr_info("Initialized persistent memory from %08lx-%08lx\n",
(long)ram->start, (long)(ram->start + ram->size - 1));
return 0;
}
#endif

19
include/linux/pstore_ram.h
View File

@ -25,21 +25,6 @@
struct persistent_ram_buffer;
struct persistent_ram_descriptor {
const char *name;
phys_addr_t size;
};
struct persistent_ram {
phys_addr_t start;
phys_addr_t size;
int num_descs;
struct persistent_ram_descriptor *descs;
struct list_head node;
};
struct persistent_ram_zone {
phys_addr_t paddr;
size_t size;
@ -63,15 +48,11 @@ struct persistent_ram_zone {
size_t old_log_size;
};
int persistent_ram_early_init(struct persistent_ram *ram);
struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start,
size_t size,
bool ecc);
void persistent_ram_free(struct persistent_ram_zone *prz);
void persistent_ram_zap(struct persistent_ram_zone *prz);
struct persistent_ram_zone *persistent_ram_init_ringbuffer(struct device *dev,
bool ecc);
int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
unsigned int count);