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Diffstat (limited to 'fs/pstore/ram.c')
-rw-r--r--fs/pstore/ram.c130
1 files changed, 65 insertions, 65 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 11f918d34b1e..5523df7f17ef 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -235,35 +235,34 @@ static ssize_t ftrace_log_combine(struct persistent_ram_zone *dest,
return 0;
}
-static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
- int *count, struct timespec *time,
- char **buf, bool *compressed,
- ssize_t *ecc_notice_size,
- struct pstore_info *psi)
+static ssize_t ramoops_pstore_read(struct pstore_record *record)
{
ssize_t size = 0;
- struct ramoops_context *cxt = psi->data;
+ struct ramoops_context *cxt = record->psi->data;
struct persistent_ram_zone *prz = NULL;
int header_length = 0;
bool free_prz = false;
- /* Ramoops headers provide time stamps for PSTORE_TYPE_DMESG, but
+ /*
+ * Ramoops headers provide time stamps for PSTORE_TYPE_DMESG, but
* PSTORE_TYPE_CONSOLE and PSTORE_TYPE_FTRACE don't currently have
* valid time stamps, so it is initialized to zero.
*/
- time->tv_sec = 0;
- time->tv_nsec = 0;
- *compressed = false;
+ record->time.tv_sec = 0;
+ record->time.tv_nsec = 0;
+ record->compressed = false;
/* Find the next valid persistent_ram_zone for DMESG */
while (cxt->dump_read_cnt < cxt->max_dump_cnt && !prz) {
prz = ramoops_get_next_prz(cxt->dprzs, &cxt->dump_read_cnt,
- cxt->max_dump_cnt, id, type,
+ cxt->max_dump_cnt, &record->id,
+ &record->type,
PSTORE_TYPE_DMESG, 1);
if (!prz_ok(prz))
continue;
header_length = ramoops_read_kmsg_hdr(persistent_ram_old(prz),
- time, compressed);
+ &record->time,
+ &record->compressed);
/* Clear and skip this DMESG record if it has no valid header */
if (!header_length) {
persistent_ram_free_old(prz);
@@ -274,18 +273,20 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
if (!prz_ok(prz))
prz = ramoops_get_next_prz(&cxt->cprz, &cxt->console_read_cnt,
- 1, id, type, PSTORE_TYPE_CONSOLE, 0);
+ 1, &record->id, &record->type,
+ PSTORE_TYPE_CONSOLE, 0);
if (!prz_ok(prz))
prz = ramoops_get_next_prz(&cxt->mprz, &cxt->pmsg_read_cnt,
- 1, id, type, PSTORE_TYPE_PMSG, 0);
+ 1, &record->id, &record->type,
+ PSTORE_TYPE_PMSG, 0);
/* ftrace is last since it may want to dynamically allocate memory. */
if (!prz_ok(prz)) {
if (!(cxt->flags & RAMOOPS_FLAG_FTRACE_PER_CPU)) {
prz = ramoops_get_next_prz(cxt->fprzs,
- &cxt->ftrace_read_cnt, 1, id, type,
- PSTORE_TYPE_FTRACE, 0);
+ &cxt->ftrace_read_cnt, 1, &record->id,
+ &record->type, PSTORE_TYPE_FTRACE, 0);
} else {
/*
* Build a new dummy record which combines all the
@@ -302,8 +303,10 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
while (cxt->ftrace_read_cnt < cxt->max_ftrace_cnt) {
prz_next = ramoops_get_next_prz(cxt->fprzs,
&cxt->ftrace_read_cnt,
- cxt->max_ftrace_cnt, id,
- type, PSTORE_TYPE_FTRACE, 0);
+ cxt->max_ftrace_cnt,
+ &record->id,
+ &record->type,
+ PSTORE_TYPE_FTRACE, 0);
if (!prz_ok(prz_next))
continue;
@@ -316,7 +319,7 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
if (size)
goto out;
}
- *id = 0;
+ record->id = 0;
prz = tmp_prz;
}
}
@@ -329,17 +332,19 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
size = persistent_ram_old_size(prz) - header_length;
/* ECC correction notice */
- *ecc_notice_size = persistent_ram_ecc_string(prz, NULL, 0);
+ record->ecc_notice_size = persistent_ram_ecc_string(prz, NULL, 0);
- *buf = kmalloc(size + *ecc_notice_size + 1, GFP_KERNEL);
- if (*buf == NULL) {
+ record->buf = kmalloc(size + record->ecc_notice_size + 1, GFP_KERNEL);
+ if (record->buf == NULL) {
size = -ENOMEM;
goto out;
}
- memcpy(*buf, (char *)persistent_ram_old(prz) + header_length, size);
+ memcpy(record->buf, (char *)persistent_ram_old(prz) + header_length,
+ size);
- persistent_ram_ecc_string(prz, *buf + size, *ecc_notice_size + 1);
+ persistent_ram_ecc_string(prz, record->buf + size,
+ record->ecc_notice_size + 1);
out:
if (free_prz) {
@@ -373,23 +378,18 @@ static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz,
return len;
}
-static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
- enum kmsg_dump_reason reason,
- u64 *id, unsigned int part,
- const char *buf,
- bool compressed, size_t size,
- struct pstore_info *psi)
+static int notrace ramoops_pstore_write(struct pstore_record *record)
{
- struct ramoops_context *cxt = psi->data;
+ struct ramoops_context *cxt = record->psi->data;
struct persistent_ram_zone *prz;
- size_t hlen;
+ size_t size, hlen;
- if (type == PSTORE_TYPE_CONSOLE) {
+ if (record->type == PSTORE_TYPE_CONSOLE) {
if (!cxt->cprz)
return -ENOMEM;
- persistent_ram_write(cxt->cprz, buf, size);
+ persistent_ram_write(cxt->cprz, record->buf, record->size);
return 0;
- } else if (type == PSTORE_TYPE_FTRACE) {
+ } else if (record->type == PSTORE_TYPE_FTRACE) {
int zonenum;
if (!cxt->fprzs)
@@ -402,33 +402,36 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
else
zonenum = 0;
- persistent_ram_write(cxt->fprzs[zonenum], buf, size);
+ persistent_ram_write(cxt->fprzs[zonenum], record->buf,
+ record->size);
return 0;
- } else if (type == PSTORE_TYPE_PMSG) {
+ } else if (record->type == PSTORE_TYPE_PMSG) {
pr_warn_ratelimited("PMSG shouldn't call %s\n", __func__);
return -EINVAL;
}
- if (type != PSTORE_TYPE_DMESG)
+ if (record->type != PSTORE_TYPE_DMESG)
return -EINVAL;
- /* Out of the various dmesg dump types, ramoops is currently designed
+ /*
+ * Out of the various dmesg dump types, ramoops is currently designed
* to only store crash logs, rather than storing general kernel logs.
*/
- if (reason != KMSG_DUMP_OOPS &&
- reason != KMSG_DUMP_PANIC)
+ if (record->reason != KMSG_DUMP_OOPS &&
+ record->reason != KMSG_DUMP_PANIC)
return -EINVAL;
/* Skip Oopes when configured to do so. */
- if (reason == KMSG_DUMP_OOPS && !cxt->dump_oops)
+ if (record->reason == KMSG_DUMP_OOPS && !cxt->dump_oops)
return -EINVAL;
- /* Explicitly only take the first part of any new crash.
+ /*
+ * Explicitly only take the first part of any new crash.
* If our buffer is larger than kmsg_bytes, this can never happen,
* and if our buffer is smaller than kmsg_bytes, we don't want the
* report split across multiple records.
*/
- if (part != 1)
+ if (record->part != 1)
return -ENOSPC;
if (!cxt->dprzs)
@@ -436,53 +439,50 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type,
prz = cxt->dprzs[cxt->dump_write_cnt];
- hlen = ramoops_write_kmsg_hdr(prz, compressed);
+ /* Build header and append record contents. */
+ hlen = ramoops_write_kmsg_hdr(prz, record->compressed);
+ size = record->size;
if (size + hlen > prz->buffer_size)
size = prz->buffer_size - hlen;
- persistent_ram_write(prz, buf, size);
+ persistent_ram_write(prz, record->buf, size);
cxt->dump_write_cnt = (cxt->dump_write_cnt + 1) % cxt->max_dump_cnt;
return 0;
}
-static int notrace ramoops_pstore_write_buf_user(enum pstore_type_id type,
- enum kmsg_dump_reason reason,
- u64 *id, unsigned int part,
- const char __user *buf,
- bool compressed, size_t size,
- struct pstore_info *psi)
+static int notrace ramoops_pstore_write_user(struct pstore_record *record,
+ const char __user *buf)
{
- if (type == PSTORE_TYPE_PMSG) {
- struct ramoops_context *cxt = psi->data;
+ if (record->type == PSTORE_TYPE_PMSG) {
+ struct ramoops_context *cxt = record->psi->data;
if (!cxt->mprz)
return -ENOMEM;
- return persistent_ram_write_user(cxt->mprz, buf, size);
+ return persistent_ram_write_user(cxt->mprz, buf, record->size);
}
return -EINVAL;
}
-static int ramoops_pstore_erase(enum pstore_type_id type, u64 id, int count,
- struct timespec time, struct pstore_info *psi)
+static int ramoops_pstore_erase(struct pstore_record *record)
{
- struct ramoops_context *cxt = psi->data;
+ struct ramoops_context *cxt = record->psi->data;
struct persistent_ram_zone *prz;
- switch (type) {
+ switch (record->type) {
case PSTORE_TYPE_DMESG:
- if (id >= cxt->max_dump_cnt)
+ if (record->id >= cxt->max_dump_cnt)
return -EINVAL;
- prz = cxt->dprzs[id];
+ prz = cxt->dprzs[record->id];
break;
case PSTORE_TYPE_CONSOLE:
prz = cxt->cprz;
break;
case PSTORE_TYPE_FTRACE:
- if (id >= cxt->max_ftrace_cnt)
+ if (record->id >= cxt->max_ftrace_cnt)
return -EINVAL;
- prz = cxt->fprzs[id];
+ prz = cxt->fprzs[record->id];
break;
case PSTORE_TYPE_PMSG:
prz = cxt->mprz;
@@ -503,8 +503,8 @@ static struct ramoops_context oops_cxt = {
.name = "ramoops",
.open = ramoops_pstore_open,
.read = ramoops_pstore_read,
- .write_buf = ramoops_pstore_write_buf,
- .write_buf_user = ramoops_pstore_write_buf_user,
+ .write = ramoops_pstore_write,
+ .write_user = ramoops_pstore_write_user,
.erase = ramoops_pstore_erase,
},
};
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-02-09 01:30:56 +0000