unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
1
Fork 0
Code Pull requests 5 Wiki Activity

pstore/ram: Set pstore flags dynamically

Browse source 
The ramoops can be configured to enable each pstore type by setting
their size.  In that case, it'd be better not to register disabled types
in the first place.

Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Namhyung Kim 2016-07-28 00:08:26 +09:00 committed by Kees Cook
parent c950fd6f20
commit 79d955af71
2 changed files with 7 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
fs/pstore/ram.c
View file

@ -623,7 +623,13 @@ static int ramoops_probe(struct platform_device *pdev)
goto fail_clear;
}
cxt->pstore.flags = PSTORE_FLAGS_ALL;
cxt->pstore.flags = PSTORE_FLAGS_DMESG;
if (cxt->console_size)
cxt->pstore.flags |= PSTORE_FLAGS_CONSOLE;
if (cxt->ftrace_size)
cxt->pstore.flags |= PSTORE_FLAGS_FTRACE;
if (cxt->pmsg_size)
cxt->pstore.flags |= PSTORE_FLAGS_PMSG;
err = pstore_register(&cxt->pstore);
if (err) {

2
include/linux/pstore.h
View file

@ -80,8 +80,6 @@ struct pstore_info {
#define PSTORE_FLAGS_FTRACE (1 << 2)
#define PSTORE_FLAGS_PMSG (1 << 3)
#define PSTORE_FLAGS_ALL ((1 << 4) - 1)
extern int pstore_register(struct pstore_info *);
extern void pstore_unregister(struct pstore_info *);
extern bool pstore_cannot_block_path(enum kmsg_dump_reason reason);