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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-28 11:27:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-28 11:27:57 -0800
commitcb3599926e3e7b3678583195effa61a03026ab0e (patch)
tree775419d69e8732ba3f4933d3b7a07e98ae555458 /include
parent4244cb482e8eab18142162a27c8829a04585863a (diff)
parentf6f8285132907757ef84ef8dae0a1244b8cde6ac (diff)
downloadlinux-cb3599926e3e7b3678583195effa61a03026ab0e.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  pstore: pass allocated memory region back to caller
Diffstat (limited to 'include')
-rw-r--r--include/linux/pstore.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index ea567321ae3c..2ca8cde5459d 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -35,10 +35,12 @@ struct pstore_info {
 	spinlock_t	buf_lock;	/* serialize access to 'buf' */
 	char		*buf;
 	size_t		bufsize;
+	struct mutex	read_mutex;	/* serialize open/read/close */
 	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, struct pstore_info *psi);
+			struct timespec *time, char **buf,
+			struct pstore_info *psi);
 	int		(*write)(enum pstore_type_id type, u64 *id,
 			unsigned int part, size_t size, struct pstore_info *psi);
 	int		(*erase)(enum pstore_type_id type, u64 id,