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>
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21f679404a
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@ -170,11 +170,12 @@ static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz)
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return len;
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}
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static int ramoops_pstore_write(enum pstore_type_id type,
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static int ramoops_pstore_write_buf(enum pstore_type_id type,
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enum kmsg_dump_reason reason,
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u64 *id,
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unsigned int part,
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size_t size, struct pstore_info *psi)
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u64 *id, unsigned int part,
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const char *buf, size_t size,
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struct pstore_info *psi)
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{
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struct ramoops_context *cxt = psi->data;
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struct persistent_ram_zone *prz = cxt->przs[cxt->dump_write_cnt];
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@ -183,7 +184,7 @@ static int ramoops_pstore_write(enum pstore_type_id type,
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if (type == PSTORE_TYPE_CONSOLE) {
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if (!cxt->cprz)
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return -ENOMEM;
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persistent_ram_write(cxt->cprz, cxt->pstore.buf, size);
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persistent_ram_write(cxt->cprz, buf, size);
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return 0;
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}
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@ -212,7 +213,7 @@ static int ramoops_pstore_write(enum pstore_type_id type,
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hlen = ramoops_write_kmsg_hdr(prz);
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if (size + hlen > prz->buffer_size)
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size = prz->buffer_size - hlen;
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persistent_ram_write(prz, cxt->pstore.buf, size);
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persistent_ram_write(prz, buf, size);
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cxt->dump_write_cnt = (cxt->dump_write_cnt + 1) % cxt->max_dump_cnt;
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@ -250,7 +251,7 @@ static struct ramoops_context oops_cxt = {
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.name = "ramoops",
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.open = ramoops_pstore_open,
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.read = ramoops_pstore_read,
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.write = ramoops_pstore_write,
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.write_buf = ramoops_pstore_write_buf,
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.erase = ramoops_pstore_erase,
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},
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};
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