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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
Download patch file Download diff file Expand all files Collapse all files

12
fs/binfmt_misc.c
View file

@ -638,11 +638,11 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
case 3:
/* Delete this handler. */
root = dget(file->f_path.dentry->d_sb->s_root);
mutex_lock(&d_inode(root)->i_mutex);
inode_lock(d_inode(root));
kill_node(e);
mutex_unlock(&d_inode(root)->i_mutex);
inode_unlock(d_inode(root));
dput(root);
break;
default:
@ -675,7 +675,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
return PTR_ERR(e);
root = dget(sb->s_root);
mutex_lock(&d_inode(root)->i_mutex);
inode_lock(d_inode(root));
dentry = lookup_one_len(e->name, root, strlen(e->name));
err = PTR_ERR(dentry);
if (IS_ERR(dentry))
@ -711,7 +711,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
out2:
dput(dentry);
out:
mutex_unlock(&d_inode(root)->i_mutex);
inode_unlock(d_inode(root));
dput(root);
if (err) {
@ -754,12 +754,12 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
case 3:
/* Delete all handlers. */
root = dget(file->f_path.dentry->d_sb->s_root);
mutex_lock(&d_inode(root)->i_mutex);
inode_lock(d_inode(root));
while (!list_empty(&entries))
kill_node(list_entry(entries.next, Node, list));
mutex_unlock(&d_inode(root)->i_mutex);
inode_unlock(d_inode(root));
dput(root);
break;
default: