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/ntfs/file.c b/fs/ntfs/file.c
index 9d383e5eff0e..bed4d427dfae 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -1944,14 +1944,14 @@ static ssize_t ntfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
         ssize_t written = 0;
         ssize_t err;
 
-        mutex_lock(&vi->i_mutex);
+        inode_lock(vi);
         /* We can write back this queue in page reclaim. */
         current->backing_dev_info = inode_to_bdi(vi);
         err = ntfs_prepare_file_for_write(iocb, from);
         if (iov_iter_count(from) && !err)
                 written = ntfs_perform_write(file, from, iocb->ki_pos);
         current->backing_dev_info = NULL;
-        mutex_unlock(&vi->i_mutex);
+        inode_unlock(vi);
         if (likely(written > 0)) {
                 err = generic_write_sync(file, iocb->ki_pos, written);
                 if (err < 0)
@@ -1996,7 +1996,7 @@ static int ntfs_file_fsync(struct file *filp, loff_t start, loff_t end,
         err = filemap_write_and_wait_range(vi->i_mapping, start, end);
         if (err)
                 return err;
-        mutex_lock(&vi->i_mutex);
+        inode_lock(vi);
 
         BUG_ON(S_ISDIR(vi->i_mode));
         if (!datasync || !NInoNonResident(NTFS_I(vi)))
@@ -2015,7 +2015,7 @@ static int ntfs_file_fsync(struct file *filp, loff_t start, loff_t end,
         else
                 ntfs_warning(vi->i_sb, "Failed to f%ssync inode 0x%lx.  Error "
                                 "%u.", datasync ? "data" : "", vi->i_ino, -ret);
-        mutex_unlock(&vi->i_mutex);
+        inode_unlock(vi);
         return ret;
 }