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authorAl Viro <viro@zeniv.linux.org.uk>2016-01-22 15:40:57 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2016-01-22 18:04:28 -0500
commit5955102c9984fa081b2d570cfac75c97eecf8f3b (patch)
treea4744386eac4b916e847eb4eedfada158f6527b4 /fs/binfmt_misc.c
parent57b8f112cfe6622ddddb8c2641206bb5fa8a112d (diff)
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>
Diffstat (limited to 'fs/binfmt_misc.c')
-rw-r--r--fs/binfmt_misc.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 78f005f37847..3a3ced779fc7 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -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: