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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-22 15:40:57 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-22 18:04:28 -0500 |
| commit | 5955102c9984fa081b2d570cfac75c97eecf8f3b (patch) | |
| tree | a4744386eac4b916e847eb4eedfada158f6527b4 /fs/binfmt_misc.c | |
| parent | 57b8f112cfe6622ddddb8c2641206bb5fa8a112d (diff) | |
| download | lwn-5955102c9984fa081b2d570cfac75c97eecf8f3b.tar.gz lwn-5955102c9984fa081b2d570cfac75c97eecf8f3b.zip | |
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.c | 12 |
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: |