fs/ceph/io.c

21 /* Call with exclusively locked inode->i_rwsem */
24 	lockdep_assert_held_write(&inode->i_rwsem);
41  * and holds a shared lock on inode->i_rwsem to ensure that the flag
48  * inode->i_rwsem, meaning that those are serialised w.r.t. the reads.
56 	down_read(&inode->i_rwsem);
59 	up_read(&inode->i_rwsem);
61 	down_write(&inode->i_rwsem);
63 	downgrade_write(&inode->i_rwsem);
71  * lock on inode->i_rwsem.
76 	up_read(&inode->i_rwsem);
89 	down_write(&inode->i_rwsem);
98  * lock on inode->i_rwsem.
103 	up_write(&inode->i_rwsem);
106 /* Call with exclusively locked inode->i_rwsem */
109 	lockdep_assert_held_write(&inode->i_rwsem);
127  * and holds a shared lock on inode->i_rwsem to ensure that the flag
134  * inode->i_rwsem, meaning that those are serialised w.r.t. O_DIRECT.
142 	down_read(&inode->i_rwsem);
145 	up_read(&inode->i_rwsem);
147 	down_write(&inode->i_rwsem);
149 	downgrade_write(&inode->i_rwsem);
157  * lock on inode->i_rwsem.
162 	up_read(&inode->i_rwsem);