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-rw-r--r--fs/pstore/ram.c16
-rw-r--r--fs/pstore/ram_core.c11
2 files changed, 20 insertions, 7 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 98e48d1a9776..712960e117fe 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -587,9 +587,16 @@ static int ramoops_init_przs(const char *name,
goto fail;
for (i = 0; i < *cnt; i++) {
+ char *label;
+
+ if (*cnt == 1)
+ label = kasprintf(GFP_KERNEL, "ramoops:%s", name);
+ else
+ label = kasprintf(GFP_KERNEL, "ramoops:%s(%d/%d)",
+ name, i, *cnt - 1);
prz_ar[i] = persistent_ram_new(*paddr, zone_sz, sig,
- &cxt->ecc_info,
- cxt->memtype, flags);
+ &cxt->ecc_info,
+ cxt->memtype, flags, label);
if (IS_ERR(prz_ar[i])) {
err = PTR_ERR(prz_ar[i]);
dev_err(dev, "failed to request %s mem region (0x%zx@0x%llx): %d\n",
@@ -619,6 +626,8 @@ static int ramoops_init_prz(const char *name,
struct persistent_ram_zone **prz,
phys_addr_t *paddr, size_t sz, u32 sig)
{
+ char *label;
+
if (!sz)
return 0;
@@ -629,8 +638,9 @@ static int ramoops_init_prz(const char *name,
return -ENOMEM;
}
+ label = kasprintf(GFP_KERNEL, "ramoops:%s", name);
*prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info,
- cxt->memtype, 0);
+ cxt->memtype, 0, label);
if (IS_ERR(*prz)) {
int err = PTR_ERR(*prz);
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index 951a14edcf51..f200dcefb3b4 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -433,11 +433,11 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size,
}
static void *persistent_ram_iomap(phys_addr_t start, size_t size,
- unsigned int memtype)
+ unsigned int memtype, char *label)
{
void *va;
- if (!request_mem_region(start, size, "persistent_ram")) {
+ if (!request_mem_region(start, size, label ?: "ramoops")) {
pr_err("request mem region (0x%llx@0x%llx) failed\n",
(unsigned long long)size, (unsigned long long)start);
return NULL;
@@ -460,7 +460,8 @@ static int persistent_ram_buffer_map(phys_addr_t start, phys_addr_t size,
if (pfn_valid(start >> PAGE_SHIFT))
prz->vaddr = persistent_ram_vmap(start, size, memtype);
else
- prz->vaddr = persistent_ram_iomap(start, size, memtype);
+ prz->vaddr = persistent_ram_iomap(start, size, memtype,
+ prz->label);
if (!prz->vaddr) {
pr_err("%s: Failed to map 0x%llx pages at 0x%llx\n", __func__,
@@ -530,12 +531,13 @@ void persistent_ram_free(struct persistent_ram_zone *prz)
prz->ecc_info.par = NULL;
persistent_ram_free_old(prz);
+ kfree(prz->label);
kfree(prz);
}
struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
u32 sig, struct persistent_ram_ecc_info *ecc_info,
- unsigned int memtype, u32 flags)
+ unsigned int memtype, u32 flags, char *label)
{
struct persistent_ram_zone *prz;
int ret = -ENOMEM;
@@ -549,6 +551,7 @@ struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
/* Initialize general buffer state. */
raw_spin_lock_init(&prz->buffer_lock);
prz->flags = flags;
+ prz->label = label;
ret = persistent_ram_buffer_map(start, size, prz, memtype);
if (ret)