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pstore/ram: Convert to write_buf callback 

Don't use pstore.buf directly, instead convert the code to write_buf callback
which passes a pointer to a buffer as an argument.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anton Vorontsov 2012-07-09 17:10:43 -07:00 committed by Greg Kroah-Hartman
parent 21f679404a
commit c2b7113261
1 changed files with 9 additions and 8 deletions
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17
fs/pstore/ram.c
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@ -170,11 +170,12 @@ static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz)
return len;
}
static int ramoops_pstore_write(enum pstore_type_id type,
enum kmsg_dump_reason reason,
u64 *id,
unsigned int part,
size_t size, struct pstore_info *psi)
static int ramoops_pstore_write_buf(enum pstore_type_id type,
enum kmsg_dump_reason reason,
u64 *id, unsigned int part,
const char *buf, size_t size,
struct pstore_info *psi)
{
struct ramoops_context *cxt = psi->data;
struct persistent_ram_zone *prz = cxt->przs[cxt->dump_write_cnt];
@ -183,7 +184,7 @@ static int ramoops_pstore_write(enum pstore_type_id type,
if (type == PSTORE_TYPE_CONSOLE) {
if (!cxt->cprz)
return -ENOMEM;
persistent_ram_write(cxt->cprz, cxt->pstore.buf, size);
persistent_ram_write(cxt->cprz, buf, size);
return 0;
}
@ -212,7 +213,7 @@ static int ramoops_pstore_write(enum pstore_type_id type,
hlen = ramoops_write_kmsg_hdr(prz);
if (size + hlen > prz->buffer_size)
size = prz->buffer_size - hlen;
persistent_ram_write(prz, cxt->pstore.buf, size);
persistent_ram_write(prz, buf, size);
cxt->dump_write_cnt = (cxt->dump_write_cnt + 1) % cxt->max_dump_cnt;
@ -250,7 +251,7 @@ static struct ramoops_context oops_cxt = {
.name = "ramoops",
.open = ramoops_pstore_open,
.read = ramoops_pstore_read,
.write = ramoops_pstore_write,
.write_buf = ramoops_pstore_write_buf,
.erase = ramoops_pstore_erase,
},
};