Messages in this thread Patch in this message | | | From | Irina Tirdea <> | Subject | [PATCH 02/26] pstore: add flags | Date | Tue, 23 Oct 2012 16:48:00 +0300 |
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From: Adrian Hunter <adrian.hunter@intel.com>
Let the back end tweak pstore behaviour. Flags added are:
PSTORE_NO_HEADINGS
Omit pstore heading lines from dumped data
PSTORE_MAX_KMSG_BYTES
Default kmsg_bytes to ULONG_MAX
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> --- fs/pstore/platform.c | 9 ++++++++- include/linux/pstore.h | 4 ++++ 2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 108bd69..b9ab942 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -128,7 +128,11 @@ static void pstore_dump(struct kmsg_dumper *dumper, size_t len; dst = psinfo->buf; - hsize = sprintf(dst, "%s#%d Part%d\n", why, oopscount, part); + if (psinfo->flags & PSTORE_NO_HEADINGS) + hsize = 0; + else + hsize = sprintf(dst, "%s#%d Part%d\n", why, oopscount, + part); size = psinfo->bufsize - hsize; dst += hsize; @@ -237,6 +241,9 @@ int pstore_register(struct pstore_info *psi) return -EINVAL; } + if (psinfo->flags & PSTORE_MAX_KMSG_BYTES) + kmsg_bytes = ULONG_MAX; + if (pstore_is_mounted()) pstore_get_records(0); diff --git a/include/linux/pstore.h b/include/linux/pstore.h index 3a293ff..27f1995 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -40,9 +40,13 @@ enum pstore_type_id { struct module; +#define PSTORE_NO_HEADINGS BIT(0) +#define PSTORE_MAX_KMSG_BYTES BIT(1) + struct pstore_info { struct module *owner; char *name; + unsigned int flags; spinlock_t buf_lock; /* serialize access to 'buf' */ char *buf; size_t bufsize; -- 1.7.9.5
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