Use super_block->s_uuid instead. Every shared filesystem using
cleancache must now initialize super_block->s_uuid before calling
cleancache_init_shared_fs. The only one on the tree, ocfs2, already
meets this requirement.
Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
---
fs/ocfs2/super.c | 2 +-
include/linux/cleancache.h | 6 +++---
mm/cleancache.c | 6 +++---
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 43f5a9e71b35..18f830a9df50 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -2335,7 +2335,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
mlog_errno(status);
goto bail;
}
- cleancache_init_shared_fs((char *)&di->id2.i_super.s_uuid, sb);
+ cleancache_init_shared_fs(sb);
bail:
return status;
diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index 4ce9056b31a8..29657d1c83fb 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -36,7 +36,7 @@ struct cleancache_ops {
extern struct cleancache_ops *
cleancache_register_ops(struct cleancache_ops *ops);
extern void __cleancache_init_fs(struct super_block *);
-extern void __cleancache_init_shared_fs(char *, struct super_block *);
+extern void __cleancache_init_shared_fs(struct super_block *);
extern int __cleancache_get_page(struct page *);
extern void __cleancache_put_page(struct page *);
extern void __cleancache_invalidate_page(struct address_space *, struct page *);
@@ -78,10 +78,10 @@ static inline void cleancache_init_fs(struct super_block *sb)
__cleancache_init_fs(sb);
}
-static inline void cleancache_init_shared_fs(char *uuid, struct super_block *sb)
+static inline void cleancache_init_shared_fs(struct super_block *sb)
{
if (cleancache_enabled)
- __cleancache_init_shared_fs(uuid, sb);
+ __cleancache_init_shared_fs(sb);
}
static inline int cleancache_get_page(struct page *page)
diff --git a/mm/cleancache.c b/mm/cleancache.c
index 053bcd8f12fb..532495f2e4f4 100644
--- a/mm/cleancache.c
+++ b/mm/cleancache.c
@@ -155,7 +155,7 @@ void __cleancache_init_fs(struct super_block *sb)
EXPORT_SYMBOL(__cleancache_init_fs);
/* Called by a cleancache-enabled clustered filesystem at time of mount */
-void __cleancache_init_shared_fs(char *uuid, struct super_block *sb)
+void __cleancache_init_shared_fs(struct super_block *sb)
{
int i;
@@ -163,10 +163,10 @@ void __cleancache_init_shared_fs(char *uuid, struct super_block *sb)
for (i = 0; i < MAX_INITIALIZABLE_FS; i++) {
if (shared_fs_poolid_map[i] == FS_UNKNOWN) {
sb->cleancache_poolid = i + FAKE_SHARED_FS_POOLID_OFFSET;
- uuids[i] = uuid;
+ uuids[i] = sb->s_uuid;
if (cleancache_ops)
shared_fs_poolid_map[i] = cleancache_ops->init_shared_fs
- (uuid, PAGE_SIZE);
+ (sb->s_uuid, PAGE_SIZE);
else
shared_fs_poolid_map[i] = FS_NO_BACKEND;
break;
--
1.7.10.4
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