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authorWeiXiong Liao <liaoweixiong@allwinnertech.com>2020-03-25 11:55:01 +0300
committerKees Cook <keescook@chromium.org>2020-05-30 20:34:03 +0300
commit34327e9fd213414b35eb70aa512c4e39b2095907 (patch)
tree3c470eb01537affe06c7b85e127117ab60b15aa6 /include/linux/pstore_zone.h
parentcc9c4d1b5597167f8e8c92f6b61e1cda6d01884d (diff)
downloadlinux-34327e9fd213414b35eb70aa512c4e39b2095907.tar.xz
pstore/zone,blk: Add ftrace frontend support
Support backend for ftrace. To enable ftrace backend, just make ftrace_size be greater than 0 and a multiple of 4096. Signed-off-by: WeiXiong Liao <liaoweixiong@allwinnertech.com> Link: https://lore.kernel.org/lkml/20200511233229.27745-6-keescook@chromium.org/ Co-developed-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/lkml/20200512170719.221514-1-colin.king@canonical.com Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include/linux/pstore_zone.h')
-rw-r--r--include/linux/pstore_zone.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pstore_zone.h b/include/linux/pstore_zone.h
index 904ee67f4ba2..6f16b0dd834a 100644
--- a/include/linux/pstore_zone.h
+++ b/include/linux/pstore_zone.h
@@ -19,6 +19,7 @@ typedef ssize_t (*pstore_zone_write_op)(const char *, size_t, loff_t);
* @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.
+ * @ftrace_size:The size of ftrace 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
@@ -37,6 +38,7 @@ struct pstore_zone_info {
int max_reason;
unsigned long pmsg_size;
unsigned long console_size;
+ unsigned long ftrace_size;
pstore_zone_read_op read;
pstore_zone_write_op write;
pstore_zone_write_op panic_write;