22 static void ceph_block_o_direct(struct ceph_inode_info *ci, struct inode *inode)  in ceph_block_o_direct()  argument
24 	lockdep_assert_held_write(&inode->i_rwsem);  in ceph_block_o_direct()
30 		inode_dio_wait(inode);  in ceph_block_o_direct()
51 ceph_start_io_read(struct inode *inode)  in ceph_start_io_read()  argument
53 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_start_io_read()
56 	down_read(&inode->i_rwsem);  in ceph_start_io_read()
59 	up_read(&inode->i_rwsem);  in ceph_start_io_read()
61 	down_write(&inode->i_rwsem);  in ceph_start_io_read()
62 	ceph_block_o_direct(ci, inode);  in ceph_start_io_read()
63 	downgrade_write(&inode->i_rwsem);  in ceph_start_io_read()
74 ceph_end_io_read(struct inode *inode)  in ceph_end_io_read()  argument
76 	up_read(&inode->i_rwsem);  in ceph_end_io_read()
87 ceph_start_io_write(struct inode *inode)  in ceph_start_io_write()  argument
89 	down_write(&inode->i_rwsem);  in ceph_start_io_write()
90 	ceph_block_o_direct(ceph_inode(inode), inode);  in ceph_start_io_write()
101 ceph_end_io_write(struct inode *inode)  in ceph_end_io_write()  argument
103 	up_write(&inode->i_rwsem);  in ceph_end_io_write()
107 static void ceph_block_buffered(struct ceph_inode_info *ci, struct inode *inode)  in ceph_block_buffered()  argument
109 	lockdep_assert_held_write(&inode->i_rwsem);  in ceph_block_buffered()
116 		filemap_write_and_wait(inode->i_mapping);  in ceph_block_buffered()
137 ceph_start_io_direct(struct inode *inode)  in ceph_start_io_direct()  argument
139 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_start_io_direct()
142 	down_read(&inode->i_rwsem);  in ceph_start_io_direct()
145 	up_read(&inode->i_rwsem);  in ceph_start_io_direct()
147 	down_write(&inode->i_rwsem);  in ceph_start_io_direct()
148 	ceph_block_buffered(ci, inode);  in ceph_start_io_direct()
149 	downgrade_write(&inode->i_rwsem);  in ceph_start_io_direct()
160 ceph_end_io_direct(struct inode *inode)  in ceph_end_io_direct()  argument
162 	up_read(&inode->i_rwsem);  in ceph_end_io_direct()