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authorChen Gong <gong.chen@linux.intel.com>2011-05-16 22:00:27 +0400
committerTony Luck <tony.luck@intel.com>2011-05-16 22:05:00 +0400
commit06cf91b4b4aafa50ee0a94c81d2c6922a18af242 (patch)
treef45fe916103b323a714c8958048b8adab1f944b1 /include/linux/pstore.h
parent8d38d74b648513dd8ed8bd2b67d899208ef4e09e (diff)
downloadlinux-06cf91b4b4aafa50ee0a94c81d2c6922a18af242.tar.xz
pstore: fix pstore filesystem mount/remount issue
Currently after mount/remount operation on pstore filesystem, the content on pstore will be lost. It is because current ERST implementation doesn't support multi-user usage, which moves internal pointer to the end after accessing it. Adding multi-user support for pstore usage. Signed-off-by: Chen Gong <gong.chen@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/linux/pstore.h')
-rw-r--r--include/linux/pstore.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index 14ce2f5d08af..2455ef2683f0 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -35,6 +35,8 @@ struct pstore_info {
struct mutex buf_mutex; /* serialize access to 'buf' */
char *buf;
size_t bufsize;
+ int (*open)(struct pstore_info *psi);
+ int (*close)(struct pstore_info *psi);
ssize_t (*read)(u64 *id, enum pstore_type_id *type,
struct timespec *time);
u64 (*write)(enum pstore_type_id type, size_t size);