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pstore/ram: Set pstore flags dynamically

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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
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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);