diff options
| author |   J. Bruce Fields <bfields@redhat.com> | 2012-04-18 15:21:34 -0400 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2013-11-09 00:16:40 -0500 |
| commit | 40bd22c9f8617ddd5da06044c81f72a2cf700791 (patch) | |
| tree | 7969f179ac6e23c8fd1a9ea6bd4e9cc35ee1bfa6 /include/linux/fs.h | |
| parent | vfs: don't use PARENT/CHILD lock classes for non-directories (diff) | |
| download | linux-dev-40bd22c9f8617ddd5da06044c81f72a2cf700791.tar.xz linux-dev-40bd22c9f8617ddd5da06044c81f72a2cf700791.zip | |
vfs: rename I_MUTEX_QUOTA now that it's not used for quotas
I_MUTEX_QUOTA is now just being used whenever we want to lock two
non-directories. So the name isn't right. I_MUTEX_NONDIR2 isn't
especially elegant but it's the best I could think of.
Also fix some outdated documentation.
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 4e1a0b41f966..ed7f94af1ab2 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -623,10 +623,13 @@ static inline int inode_unhashed(struct inode *inode) * 0: the object of the current VFS operation * 1: parent * 2: child/target - * 3: quota file + * 3: xattr + * 4: second non-directory + * The last is for certain operations (such as rename) which lock two + * non-directories at once. * * The locking order between these classes is - * parent -> child -> normal -> xattr -> quota + * parent -> child -> normal -> xattr -> second non-directory */ enum inode_i_mutex_lock_class { @@ -634,7 +637,7 @@ enum inode_i_mutex_lock_class I_MUTEX_PARENT, I_MUTEX_CHILD, I_MUTEX_XATTR, - I_MUTEX_QUOTA + I_MUTEX_NONDIR2 }; void lock_two_nondirectories(struct inode *, struct inode*); |