22 static void ceph_block_o_direct(struct ceph_inode_info *ci, struct inode *inode)  in ceph_block_o_direct()  argument
26 	lockdep_assert_held_write(&inode->i_rwsem);  in ceph_block_o_direct()
40 		inode_dio_wait(inode);  in ceph_block_o_direct()
59 int ceph_start_io_read(struct inode *inode)  in ceph_start_io_read()  argument
61 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_start_io_read()
66 	err = down_read_killable(&inode->i_rwsem);  in ceph_start_io_read()
77 	up_read(&inode->i_rwsem);  in ceph_start_io_read()
80 	err = down_write_killable(&inode->i_rwsem);  in ceph_start_io_read()
84 	ceph_block_o_direct(ci, inode);  in ceph_start_io_read()
85 	downgrade_write(&inode->i_rwsem);  in ceph_start_io_read()
98 ceph_end_io_read(struct inode *inode)  in ceph_end_io_read()  argument
100 	up_read(&inode->i_rwsem);  in ceph_end_io_read()
110 int ceph_start_io_write(struct inode *inode)  in ceph_start_io_write()  argument
112 	int err = down_write_killable(&inode->i_rwsem);  in ceph_start_io_write()
114 		ceph_block_o_direct(ceph_inode(inode), inode);  in ceph_start_io_write()
126 ceph_end_io_write(struct inode *inode)  in ceph_end_io_write()  argument
128 	up_write(&inode->i_rwsem);  in ceph_end_io_write()
132 static void ceph_block_buffered(struct ceph_inode_info *ci, struct inode *inode)  in ceph_block_buffered()  argument
136 	lockdep_assert_held_write(&inode->i_rwsem);  in ceph_block_buffered()
151 		filemap_write_and_wait(inode->i_mapping);  in ceph_block_buffered()
171 int ceph_start_io_direct(struct inode *inode)  in ceph_start_io_direct()  argument
173 	struct ceph_inode_info *ci = ceph_inode(inode);  in ceph_start_io_direct()
178 	err = down_read_killable(&inode->i_rwsem);  in ceph_start_io_direct()
189 	up_read(&inode->i_rwsem);  in ceph_start_io_direct()
192 	err = down_write_killable(&inode->i_rwsem);  in ceph_start_io_direct()
196 	ceph_block_buffered(ci, inode);  in ceph_start_io_direct()
197 	downgrade_write(&inode->i_rwsem);  in ceph_start_io_direct()
210 ceph_end_io_direct(struct inode *inode)  in ceph_end_io_direct()  argument
212 	up_read(&inode->i_rwsem);  in ceph_end_io_direct()