From 027065b726434d2a95a5cc516129be765e27ecf8 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Fri, 11 May 2018 11:49:28 -0400 Subject: [PATCH] ovl: Use out_err instead of out_nomem Right now we use goto out_nomem which assumes error code is -ENOMEM. But there are other errors returned like -ESTALE as well. So instead of out_nomem, use out_err which will do ERR_PTR(err). That way one can put error code in err and jump to out_err. This just code reorganization and no change of functionality. I am about to add more code and this organization helps laying more code and error paths on top of it. Signed-off-by: Vivek Goyal Reviewed-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/inode.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index a30cbd754bf2..e46f26ee6e21 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -782,6 +782,7 @@ struct inode *ovl_get_inode(struct super_block *sb, int fsid = bylower ? oip->lowerpath->layer->fsid : 0; bool is_dir; unsigned long ino = 0; + int err = -ENOMEM; if (!realinode) realinode = d_inode(lowerdentry); @@ -798,7 +799,7 @@ struct inode *ovl_get_inode(struct super_block *sb, inode = ovl_iget5(sb, oip->newinode, key); if (!inode) - goto out_nomem; + goto out_err; if (!(inode->i_state & I_NEW)) { /* * Verify that the underlying files stored in the inode @@ -807,8 +808,8 @@ struct inode *ovl_get_inode(struct super_block *sb, if (!ovl_verify_inode(inode, lowerdentry, upperdentry, true)) { iput(inode); - inode = ERR_PTR(-ESTALE); - goto out; + err = -ESTALE; + goto out_err; } dput(upperdentry); @@ -824,8 +825,10 @@ struct inode *ovl_get_inode(struct super_block *sb, } else { /* Lower hardlink that will be broken on copy up */ inode = new_inode(sb); - if (!inode) - goto out_nomem; + if (!inode) { + err = -ENOMEM; + goto out_err; + } } ovl_fill_inode(inode, realinode->i_mode, realinode->i_rdev, ino, fsid); ovl_inode_init(inode, upperdentry, lowerdentry); @@ -851,7 +854,7 @@ struct inode *ovl_get_inode(struct super_block *sb, out: return inode; -out_nomem: - inode = ERR_PTR(-ENOMEM); +out_err: + inode = ERR_PTR(err); goto out; } -- 2.30.2