diff options
| author | WeiXiong Liao <liaoweixiong@allwinnertech.com> | 2020-03-25 11:55:00 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2020-05-30 20:34:03 +0300 |
| commit | cc9c4d1b5597167f8e8c92f6b61e1cda6d01884d (patch) | |
| tree | e85923479c50fbc727359bd5add5bfd5581ab040 /include | |
| parent | 0dc068265a1c5923ffebf40388fbe93050a77ad1 (diff) | |
| download | linux-cc9c4d1b5597167f8e8c92f6b61e1cda6d01884d.tar.xz | |
pstore/zone,blk: Add console frontend support
Support backend for console. To enable console backend, just make
console_size be greater than 0 and a multiple of 4096.
Signed-off-by: WeiXiong Liao <liaoweixiong@allwinnertech.com>
Link: https://lore.kernel.org/lkml/20200511233229.27745-5-keescook@chromium.org/
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pstore_zone.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/pstore_zone.h b/include/linux/pstore_zone.h index 29c367a3bd80..904ee67f4ba2 100644 --- a/include/linux/pstore_zone.h +++ b/include/linux/pstore_zone.h @@ -18,11 +18,12 @@ typedef ssize_t (*pstore_zone_write_op)(const char *, size_t, loff_t); * it must be multiple of SECTOR_SIZE(512 Bytes). * @max_reason: Maximum kmsg dump reason to store. * @pmsg_size: The size of pmsg zone which is the same as @kmsg_size. + * @console_size:The size of console zone which is the same as @kmsg_size. * @read: The general read operation. Both of the function parameters * @size and @offset are relative value to storage. * On success, the number of bytes should be returned, others * means error. - * @write: The same as @read. + * @write: The same as @read, but -EBUSY means try to write again later. * @panic_write:The write operation only used for panic case. It's optional * if you do not care panic log. The parameters and return value * are the same as @read. @@ -35,6 +36,7 @@ struct pstore_zone_info { unsigned long kmsg_size; int max_reason; unsigned long pmsg_size; + unsigned long console_size; pstore_zone_read_op read; pstore_zone_write_op write; pstore_zone_write_op panic_write; |