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 | |
| parent | 275555163e3ac09c016c964a10e0f389cf152c4c (diff) | |
| download | linux-40bd22c9f8617ddd5da06044c81f72a2cf700791.tar.gz linux-40bd22c9f8617ddd5da06044c81f72a2cf700791.tar.bz2 linux-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Also fix some outdated documentation.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>
| -rw-r--r-- | fs/inode.c | 4 | ||||
| -rw-r--r-- | include/linux/fs.h | 9 |
2 files changed, 8 insertions, 5 deletions
diff --git a/fs/inode.c b/fs/inode.c index 51f329b98aa4..ce48c359ce9e 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -957,10 +957,10 @@ void lock_two_nondirectories(struct inode *inode1, struct inode *inode2) WARN_ON_ONCE(S_ISDIR(inode2->i_mode)); if (inode1 < inode2) { mutex_lock(&inode1->i_mutex); - mutex_lock_nested(&inode2->i_mutex, I_MUTEX_QUOTA); + mutex_lock_nested(&inode2->i_mutex, I_MUTEX_NONDIR2); } else { mutex_lock(&inode2->i_mutex); - mutex_lock_nested(&inode1->i_mutex, I_MUTEX_QUOTA); + mutex_lock_nested(&inode1->i_mutex, I_MUTEX_NONDIR2); } } EXPORT_SYMBOL(lock_two_nondirectories); 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*); |