summaryrefslogtreecommitdiff
path: root/fs/pstore
diff options
context:
space:
mode:
Diffstat (limited to 'fs/pstore')
-rw-r--r--fs/pstore/ftrace.c4
-rw-r--r--fs/pstore/inode.c13
-rw-r--r--fs/pstore/internal.h2
-rw-r--r--fs/pstore/platform.c14
-rw-r--r--fs/pstore/ram.c43
-rw-r--r--fs/pstore/ram_core.c9
6 files changed, 54 insertions, 31 deletions
diff --git a/fs/pstore/ftrace.c b/fs/pstore/ftrace.c
index 2d57e1ac0115..43b12807a51d 100644
--- a/fs/pstore/ftrace.c
+++ b/fs/pstore/ftrace.c
@@ -28,7 +28,9 @@
#include "internal.h"
static void notrace pstore_ftrace_call(unsigned long ip,
- unsigned long parent_ip)
+ unsigned long parent_ip,
+ struct ftrace_ops *op,
+ struct pt_regs *regs)
{
unsigned long flags;
struct pstore_ftrace_record rec = {};
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 4ab572e6d277..67de74ca85f4 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -49,6 +49,7 @@ struct pstore_private {
struct pstore_info *psi;
enum pstore_type_id type;
u64 id;
+ int count;
ssize_t size;
char data[];
};
@@ -150,13 +151,13 @@ static int pstore_file_open(struct inode *inode, struct file *file)
return 0;
}
-static loff_t pstore_file_llseek(struct file *file, loff_t off, int origin)
+static loff_t pstore_file_llseek(struct file *file, loff_t off, int whence)
{
struct seq_file *sf = file->private_data;
if (sf->op)
- return seq_lseek(file, off, origin);
- return default_llseek(file, off, origin);
+ return seq_lseek(file, off, whence);
+ return default_llseek(file, off, whence);
}
static const struct file_operations pstore_file_operations = {
@@ -175,7 +176,8 @@ static int pstore_unlink(struct inode *dir, struct dentry *dentry)
struct pstore_private *p = dentry->d_inode->i_private;
if (p->psi->erase)
- p->psi->erase(p->type, p->id, p->psi);
+ p->psi->erase(p->type, p->id, p->count,
+ dentry->d_inode->i_ctime, p->psi);
return simple_unlink(dir, dentry);
}
@@ -270,7 +272,7 @@ int pstore_is_mounted(void)
* Load it up with "size" bytes of data from "buf".
* Set the mtime & ctime to the date that this record was originally stored.
*/
-int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id,
+int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
char *data, size_t size, struct timespec time,
struct pstore_info *psi)
{
@@ -306,6 +308,7 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id,
goto fail_alloc;
private->type = type;
private->id = id;
+ private->count = count;
private->psi = psi;
switch (type) {
diff --git a/fs/pstore/internal.h b/fs/pstore/internal.h
index 4847f588b7d5..937d820f273c 100644
--- a/fs/pstore/internal.h
+++ b/fs/pstore/internal.h
@@ -50,7 +50,7 @@ extern struct pstore_info *psinfo;
extern void pstore_set_kmsg_bytes(int);
extern void pstore_get_records(int);
extern int pstore_mkfile(enum pstore_type_id, char *psname, u64 id,
- char *data, size_t size,
+ int count, char *data, size_t size,
struct timespec time, struct pstore_info *psi);
extern int pstore_is_mounted(void);
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index a40da07e93d6..5ea2e77ff023 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -136,7 +136,7 @@ static void pstore_dump(struct kmsg_dumper *dumper,
break;
ret = psinfo->write(PSTORE_TYPE_DMESG, reason, &id, part,
- hsize + len, psinfo);
+ oopscount, hsize + len, psinfo);
if (ret == 0 && reason == KMSG_DUMP_OOPS && pstore_is_mounted())
pstore_new_entry = 1;
@@ -161,6 +161,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
while (s < e) {
unsigned long flags;
+ u64 id;
if (c > psinfo->bufsize)
c = psinfo->bufsize;
@@ -172,7 +173,7 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
spin_lock_irqsave(&psinfo->buf_lock, flags);
}
memcpy(psinfo->buf, s, c);
- psinfo->write(PSTORE_TYPE_CONSOLE, 0, NULL, 0, c, psinfo);
+ psinfo->write(PSTORE_TYPE_CONSOLE, 0, &id, 0, 0, c, psinfo);
spin_unlock_irqrestore(&psinfo->buf_lock, flags);
s += c;
c = e - s;
@@ -196,7 +197,7 @@ static void pstore_register_console(void) {}
static int pstore_write_compat(enum pstore_type_id type,
enum kmsg_dump_reason reason,
- u64 *id, unsigned int part,
+ u64 *id, unsigned int part, int count,
size_t size, struct pstore_info *psi)
{
return psi->write_buf(type, reason, id, part, psinfo->buf, size, psi);
@@ -266,6 +267,7 @@ void pstore_get_records(int quiet)
char *buf = NULL;
ssize_t size;
u64 id;
+ int count;
enum pstore_type_id type;
struct timespec time;
int failed = 0, rc;
@@ -277,9 +279,9 @@ void pstore_get_records(int quiet)
if (psi->open && psi->open(psi))
goto out;
- while ((size = psi->read(&id, &type, &time, &buf, psi)) > 0) {
- rc = pstore_mkfile(type, psi->name, id, buf, (size_t)size,
- time, psi);
+ while ((size = psi->read(&id, &type, &count, &time, &buf, psi)) > 0) {
+ rc = pstore_mkfile(type, psi->name, id, count, buf,
+ (size_t)size, time, psi);
kfree(buf);
buf = NULL;
if (rc && (rc != -EEXIST || !quiet))
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index dacfe78aee7e..288f068740f6 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -132,9 +132,8 @@ ramoops_get_next_prz(struct persistent_ram_zone *przs[], uint *c, uint max,
}
static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
- struct timespec *time,
- char **buf,
- struct pstore_info *psi)
+ int *count, struct timespec *time,
+ char **buf, struct pstore_info *psi)
{
ssize_t size;
struct ramoops_context *cxt = psi->data;
@@ -193,7 +192,7 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
struct pstore_info *psi)
{
struct ramoops_context *cxt = psi->data;
- struct persistent_ram_zone *prz = cxt->przs[cxt->dump_write_cnt];
+ struct persistent_ram_zone *prz;
size_t hlen;
if (type == PSTORE_TYPE_CONSOLE) {
@@ -230,6 +229,11 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
if (part != 1)
return -ENOSPC;
+ if (!cxt->przs)
+ return -ENOSPC;
+
+ prz = cxt->przs[cxt->dump_write_cnt];
+
hlen = ramoops_write_kmsg_hdr(prz);
if (size + hlen > prz->buffer_size)
size = prz->buffer_size - hlen;
@@ -240,8 +244,8 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
return 0;
}
-static int ramoops_pstore_erase(enum pstore_type_id type, u64 id,
- struct pstore_info *psi)
+static int ramoops_pstore_erase(enum pstore_type_id type, u64 id, int count,
+ struct timespec time, struct pstore_info *psi)
{
struct ramoops_context *cxt = psi->data;
struct persistent_ram_zone *prz;
@@ -292,7 +296,7 @@ static void ramoops_free_przs(struct ramoops_context *cxt)
}
static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
- phys_addr_t *paddr, size_t dump_mem_sz)
+ phys_addr_t *paddr, size_t dump_mem_sz)
{
int err = -ENOMEM;
int i;
@@ -300,6 +304,11 @@ static int ramoops_init_przs(struct device *dev, struct ramoops_context *cxt,
if (!cxt->record_size)
return 0;
+ if (*paddr + dump_mem_sz - cxt->phys_addr > cxt->size) {
+ dev_err(dev, "no room for dumps\n");
+ return -ENOMEM;
+ }
+
cxt->max_dump_cnt = dump_mem_sz / cxt->record_size;
if (!cxt->max_dump_cnt)
return -ENOMEM;
@@ -337,8 +346,12 @@ static int ramoops_init_prz(struct device *dev, struct ramoops_context *cxt,
if (!sz)
return 0;
- if (*paddr + sz > *paddr + cxt->size)
+ if (*paddr + sz - cxt->phys_addr > cxt->size) {
+ dev_err(dev, "no room for mem region (0x%zx@0x%llx) in (0x%lx@0x%llx)\n",
+ sz, (unsigned long long)*paddr,
+ cxt->size, (unsigned long long)cxt->phys_addr);
return -ENOMEM;
+ }
*prz = persistent_ram_new(*paddr, sz, sig, cxt->ecc_size);
if (IS_ERR(*prz)) {
@@ -356,7 +369,7 @@ static int ramoops_init_prz(struct device *dev, struct ramoops_context *cxt,
return 0;
}
-static int __devinit ramoops_probe(struct platform_device *pdev)
+static int ramoops_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ramoops_platform_data *pdata = pdev->dev.platform_data;
@@ -378,10 +391,14 @@ static int __devinit ramoops_probe(struct platform_device *pdev)
goto fail_out;
}
- pdata->mem_size = rounddown_pow_of_two(pdata->mem_size);
- pdata->record_size = rounddown_pow_of_two(pdata->record_size);
- pdata->console_size = rounddown_pow_of_two(pdata->console_size);
- pdata->ftrace_size = rounddown_pow_of_two(pdata->ftrace_size);
+ if (!is_power_of_2(pdata->mem_size))
+ pdata->mem_size = rounddown_pow_of_two(pdata->mem_size);
+ if (!is_power_of_2(pdata->record_size))
+ pdata->record_size = rounddown_pow_of_two(pdata->record_size);
+ if (!is_power_of_2(pdata->console_size))
+ pdata->console_size = rounddown_pow_of_two(pdata->console_size);
+ if (!is_power_of_2(pdata->ftrace_size))
+ pdata->ftrace_size = rounddown_pow_of_two(pdata->ftrace_size);
cxt->dump_read_cnt = 0;
cxt->size = pdata->mem_size;
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index eecd2a8a84dd..0306303be372 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -390,8 +390,8 @@ static int persistent_ram_buffer_map(phys_addr_t start, phys_addr_t size,
return 0;
}
-static int __devinit persistent_ram_post_init(struct persistent_ram_zone *prz,
- u32 sig, int ecc_size)
+static int persistent_ram_post_init(struct persistent_ram_zone *prz, u32 sig,
+ int ecc_size)
{
int ret;
@@ -443,9 +443,8 @@ void persistent_ram_free(struct persistent_ram_zone *prz)
kfree(prz);
}
-struct persistent_ram_zone * __devinit persistent_ram_new(phys_addr_t start,
- size_t size, u32 sig,
- int ecc_size)
+struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
+ u32 sig, int ecc_size)
{
struct persistent_ram_zone *prz;
int ret = -ENOMEM;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-22 18:00:16 +0300