These match the ones for e.g. XATTR_TRUSTED_PREFIX_LEN.
Signed-off-by: Alexander Larsson <alexl@xxxxxxxxxx>
Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>
---
fs/overlayfs/overlayfs.h | 2 ++
fs/overlayfs/xattrs.c | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 7b2a309bd746..dff7232b7bf5 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -28,7 +28,9 @@ enum ovl_path_type {
#define OVL_XATTR_NAMESPACE "overlay."
#define OVL_XATTR_TRUSTED_PREFIX XATTR_TRUSTED_PREFIX OVL_XATTR_NAMESPACE
+#define OVL_XATTR_TRUSTED_PREFIX_LEN (sizeof(OVL_XATTR_TRUSTED_PREFIX) - 1)
#define OVL_XATTR_USER_PREFIX XATTR_USER_PREFIX OVL_XATTR_NAMESPACE
+#define OVL_XATTR_USER_PREFIX_LEN (sizeof(OVL_XATTR_USER_PREFIX) - 1)
enum ovl_xattr {
OVL_XATTR_OPAQUE,
diff --git a/fs/overlayfs/xattrs.c b/fs/overlayfs/xattrs.c
index edc7cc49a7c4..b8ea96606ea8 100644
--- a/fs/overlayfs/xattrs.c
+++ b/fs/overlayfs/xattrs.c
@@ -10,10 +10,10 @@ bool ovl_is_private_xattr(struct super_block *sb, const char *name)
if (ofs->config.userxattr)
return strncmp(name, OVL_XATTR_USER_PREFIX,
- sizeof(OVL_XATTR_USER_PREFIX) - 1) == 0;
+ OVL_XATTR_USER_PREFIX_LEN) == 0;
else
return strncmp(name, OVL_XATTR_TRUSTED_PREFIX,
- sizeof(OVL_XATTR_TRUSTED_PREFIX) - 1) == 0;
+ OVL_XATTR_TRUSTED_PREFIX_LEN) == 0;
}
static int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
--
2.41.0
