dquot: cleanup space allocation / freeing routines

Get rid of the alloc_space, free_space, reserve_space, claim_space and
release_rsv dquot operations - they are always called from the filesystem
and if a filesystem really needs their own (which none currently does)
it can just call into it's own routine directly.

Move shared logic into the common __dquot_alloc_space,
dquot_claim_space_nodirty and __dquot_free_space low-level methods,
and rationalize the wrappers around it to move as much as possible
code into the common block for CONFIG_QUOTA vs not.  Also rename
all these helpers to be named dquot_* instead of vfs_dq_*.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 4 insertions, 5 deletions

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 50fb26a6a5f5..13adaa1f40cd 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -1716,11 +1716,10 @@ static int ocfs2_symlink(struct inode *dir,
                 u32 offset = 0;
 
                 inode->i_op = &ocfs2_symlink_inode_operations;
-                if (vfs_dq_alloc_space_nodirty(inode,
-                    ocfs2_clusters_to_bytes(osb->sb, 1))) {
-                        status = -EDQUOT;
+                status = dquot_alloc_space_nodirty(inode,
+                    ocfs2_clusters_to_bytes(osb->sb, 1));
+                if (status)
                         goto bail;
-                }
                 did_quota = 1;
                 status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0,
                                               new_fe_bh,
@@ -1788,7 +1787,7 @@ static int ocfs2_symlink(struct inode *dir,
         d_instantiate(dentry, inode);
 bail:
         if (status < 0 && did_quota)
-                vfs_dq_free_space_nodirty(inode,
+                dquot_free_space_nodirty(inode,
                                         ocfs2_clusters_to_bytes(osb->sb, 1));
         if (status < 0 && did_quota_inode)
                 vfs_dq_free_inode(inode);