summaryrefslogtreecommitdiffstats
path: root/fs/overlayfs
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2016-05-27 11:06:05 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-05-27 20:09:16 -0400
commit3767e255b390d72f9a33c08d9e86c5f21f25860f (patch)
tree519dcbb61591a2ad94c36d3896e4787074e4813d /fs/overlayfs
parent5930122683dff58f0846b0f0405b4bd598a3ba6a (diff)
downloadlinux-3767e255b390d72f9a33c08d9e86c5f21f25860f.tar.bz2
switch ->setxattr() to passing dentry and inode separately
smack ->d_instantiate() uses ->setxattr(), so to be able to call it before we'd hashed the new dentry and attached it to inode, we need ->setxattr() instances getting the inode as an explicit argument rather than obtaining it from dentry. Similar change for ->getxattr() had been done in commit ce23e64. Unlike ->getxattr() (which is used by both selinux and smack instances of ->d_instantiate()) ->setxattr() is used only by smack one and unfortunately it got missed back then. Reported-by: Seung-Woo Kim <sw0312.kim@samsung.com> Tested-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/overlayfs')
-rw-r--r--fs/overlayfs/inode.c5
-rw-r--r--fs/overlayfs/overlayfs.h5
2 files changed, 6 insertions, 4 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index c7b31a03dc9c..0ed7c4012437 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -210,8 +210,9 @@ static bool ovl_is_private_xattr(const char *name)
return strncmp(name, OVL_XATTR_PRE_NAME, OVL_XATTR_PRE_LEN) == 0;
}
-int ovl_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags)
+int ovl_setxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, const void *value,
+ size_t size, int flags)
{
int err;
struct dentry *upperdentry;
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 99ec4b035237..d79577eb3937 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -171,8 +171,9 @@ int ovl_check_d_type_supported(struct path *realpath);
/* inode.c */
int ovl_setattr(struct dentry *dentry, struct iattr *attr);
int ovl_permission(struct inode *inode, int mask);
-int ovl_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags);
+int ovl_setxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, const void *value,
+ size_t size, int flags);
ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size);
ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);