wrappers for ->i_mutex access

parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 602e8441bc0f..1b2f7ffc8b84 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1157,12 +1157,12 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
                                         iocb->ki_filp->f_mapping;
 
                         /* will be released by direct_io_worker */
-                        mutex_lock(&inode->i_mutex);
+                        inode_lock(inode);
 
                         retval = filemap_write_and_wait_range(mapping, offset,
                                                               end - 1);
                         if (retval) {
-                                mutex_unlock(&inode->i_mutex);
+                                inode_unlock(inode);
                                 kmem_cache_free(dio_cache, dio);
                                 goto out;
                         }
@@ -1173,7 +1173,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
         dio->i_size = i_size_read(inode);
         if (iov_iter_rw(iter) == READ && offset >= dio->i_size) {
                 if (dio->flags & DIO_LOCKING)
-                        mutex_unlock(&inode->i_mutex);
+                        inode_unlock(inode);
                 kmem_cache_free(dio_cache, dio);
                 retval = 0;
                 goto out;
@@ -1295,7 +1295,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
          * of protecting us from looking up uninitialized blocks.
          */
         if (iov_iter_rw(iter) == READ && (dio->flags & DIO_LOCKING))
-                mutex_unlock(&dio->inode->i_mutex);
+                inode_unlock(dio->inode);
 
         /*
          * The only time we want to leave bios in flight is when a successful