diff options
| author | Frank van der Linden <fllinden@amazon.com> | 2020-06-23 22:39:19 +0000 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2020-07-13 17:27:03 -0400 |
| commit | cab8d289c5ad541a5351a651d95c4086b7f84d7c (patch) | |
| tree | 6c30bbee0157751414bb2e12665e1fcc6284e12b /include/linux/xattr.h | |
| parent | 08b5d5014a27e717826999ad20e394a8811aae92 (diff) | |
xattr: add a function to check if a namespace is supported
Add a function that checks is an extended attribute namespace is
supported for an inode, meaning that a handler must be present
for either the whole namespace, or at least one synthetic
xattr in the namespace.
To be used by the nfs server code when being queried for extended
attributes support.
Cc: linux-fsdevel@vger.kernel.org
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include/linux/xattr.h')
| -rw-r--r-- | include/linux/xattr.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/xattr.h b/include/linux/xattr.h index a2f3cd02653c..fac75810d9d3 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -61,6 +61,8 @@ ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_siz ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value, size_t size, gfp_t flags); +int xattr_supported_namespace(struct inode *inode, const char *prefix); + static inline const char *xattr_prefix(const struct xattr_handler *handler) { return handler->prefix ?: handler->name; |