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wrappers for ->i_mutex access

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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>
This commit is contained in:
Al Viro
2016-01-22 15:40:57 -05:00
parent 57b8f112cf
commit 5955102c99
177 changed files with 908 additions and 883 deletions
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4
drivers/block/drbd/drbd_debugfs.c
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@@ -434,12 +434,12 @@ static int drbd_single_open(struct file *file, int (*show)(struct seq_file *, vo
if (!parent || d_really_is_negative(parent))
goto out;
/* serialize with d_delete() */
mutex_lock(&d_inode(parent)->i_mutex);
inode_lock(d_inode(parent));
/* Make sure the object is still alive */
if (simple_positive(file->f_path.dentry)
&& kref_get_unless_zero(kref))
ret = 0;
mutex_unlock(&d_inode(parent)->i_mutex);
inode_unlock(d_inode(parent));
if (!ret) {
ret = single_open(file, show, data);
if (ret)