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authorVivek Goyal <vgoyal@redhat.com>2018-05-11 18:49:28 +0300
committerMiklos Szeredi <mszeredi@redhat.com>2018-07-20 10:56:08 +0300
commit027065b726434d2a95a5cc516129be765e27ecf8 (patch)
tree5f8c3aa847bf0eceab9c4cf9e384d46e4909378f
parent0c2888749363645d62cc48852d0af98d5ceef332 (diff)
downloadlinux-027065b726434d2a95a5cc516129be765e27ecf8.tar.xz
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 <vgoyal@redhat.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
-rw-r--r--fs/overlayfs/inode.c17
1 files 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;
}