From: dragos.tatulea@intel.com
To: cbouatmailru@gmail.com, linux-kernel@vger.kernel.org
Cc: adrian.hunter@intel.com, octavian.purdila@intel.com
Subject: [PATCH 1/8] pstore: add flags
Date: Mon, 15 Oct 2012 14:40:03 +0300 [thread overview]
Message-ID: <1350301210-16953-2-git-send-email-dragos.tatulea@intel.com> (raw)
In-Reply-To: <1350301210-16953-1-git-send-email-dragos.tatulea@intel.com>
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>
---
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 a40da07..c4ea778 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 ee3034a..55ab23f 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
next prev parent reply other threads:[~2012-10-15 11:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-15 11:40 [PATCH 0/8] pstore: add interface for dumpers and add task list dumper dragos.tatulea
2012-10-15 11:40 ` dragos.tatulea [this message]
2012-10-15 11:40 ` [PATCH 2/8] pstore: add debugfs support for causing dumps and panics dragos.tatulea
2012-10-15 11:40 ` [PATCH 3/8] pstore: add support for external writers dragos.tatulea
2012-10-15 11:40 ` [PATCH 4/8] pstore: allow storing different type id's in ram backend dragos.tatulea
2012-10-15 11:40 ` [PATCH 5/8] pstore: add task list dumper dragos.tatulea
2012-10-15 11:40 ` [PATCH 6/8] pstore: do not run timer while pstore is not mounted dragos.tatulea
2012-10-15 11:40 ` [PATCH 7/8] pstore: make sure pstore_write exists on flush error dragos.tatulea
2012-10-15 11:40 ` [PATCH 8/8] pstore: max out console log level during sysfs dump switch dragos.tatulea
-- strict thread matches above, loose matches on Subject: below --
2012-10-15 11:38 [PATCH 0/8] pstore: add interface for dumpers and add task list dumper dragos.tatulea
2012-10-15 11:38 ` [PATCH 1/8] pstore: add flags dragos.tatulea
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