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authorTao Ma <tao.ma@oracle.com>2009-08-18 05:19:58 +0200
committerJoel Becker <joel.becker@oracle.com>2009-09-23 05:09:28 +0200
commit8dec98edfe9684ce00b580a09dde3dcd21ee785b (patch)
tree3002e990974163a09ea6d427d7cf775aaca7acca /fs/ocfs2/dlmglue.h
parentocfs2: Abstract caching info checkpoint. (diff)
downloadlinux-8dec98edfe9684ce00b580a09dde3dcd21ee785b.tar.xz
linux-8dec98edfe9684ce00b580a09dde3dcd21ee785b.zip
ocfs2: Add new refcount tree lock resource in dlmglue.
refcount tree lock resource is used to protect refcount tree read/write among multiple nodes. Signed-off-by: Tao Ma <tao.ma@oracle.com>
Diffstat (limited to 'fs/ocfs2/dlmglue.h')
-rw-r--r--fs/ocfs2/dlmglue.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 7553836931de..d1ce48e1b3d6 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -101,6 +101,9 @@ void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
struct ocfs2_mem_dqinfo;
void ocfs2_qinfo_lock_res_init(struct ocfs2_lock_res *lockres,
struct ocfs2_mem_dqinfo *info);
+void ocfs2_refcount_lock_res_init(struct ocfs2_lock_res *lockres,
+ struct ocfs2_super *osb, u64 ref_blkno,
+ unsigned int generation);
void ocfs2_lock_res_free(struct ocfs2_lock_res *res);
int ocfs2_create_new_inode_locks(struct inode *inode);
int ocfs2_drop_inode_locks(struct inode *inode);
@@ -148,6 +151,9 @@ int ocfs2_file_lock(struct file *file, int ex, int trylock);
void ocfs2_file_unlock(struct file *file);
int ocfs2_qinfo_lock(struct ocfs2_mem_dqinfo *oinfo, int ex);
void ocfs2_qinfo_unlock(struct ocfs2_mem_dqinfo *oinfo, int ex);
+struct ocfs2_refcount_tree;
+int ocfs2_refcount_lock(struct ocfs2_refcount_tree *ref_tree, int ex);
+void ocfs2_refcount_unlock(struct ocfs2_refcount_tree *ref_tree, int ex);
void ocfs2_mark_lockres_freeing(struct ocfs2_lock_res *lockres);