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authorAmir Goldstein <amir73il@gmail.com>2021-06-19 11:26:16 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2021-08-17 11:47:43 +0200
commit4f911138c8da94bcff84f1d093d28e378703c43f (patch)
tree5e60f8b85f273a6599ad0b52165b84af91189a2b /fs/stat.c
parentLinux 5.14-rc6 (diff)
downloadlinux-4f911138c8da94bcff84f1d093d28e378703c43f.tar.xz
linux-4f911138c8da94bcff84f1d093d28e378703c43f.zip
fs: add generic helper for filling statx attribute flags
The immutable and append-only properties on an inode are published on the inode's i_flags and enforced by the VFS. Create a helper to fill the corresponding STATX_ATTR_ flags in the kstat structure from the inode's i_flags. Only orange was converted to use this helper. Other filesystems could use it in the future. Suggested-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/stat.c')
-rw-r--r--fs/stat.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c
index 1fa38bdec1a6..28d2020ba1f4 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -60,6 +60,24 @@ void generic_fillattr(struct user_namespace *mnt_userns, struct inode *inode,
EXPORT_SYMBOL(generic_fillattr);
/**
+ * generic_fill_statx_attr - Fill in the statx attributes from the inode flags
+ * @inode: Inode to use as the source
+ * @stat: Where to fill in the attribute flags
+ *
+ * Fill in the STATX_ATTR_* flags in the kstat structure for properties of the
+ * inode that are published on i_flags and enforced by the VFS.
+ */
+void generic_fill_statx_attr(struct inode *inode, struct kstat *stat)
+{
+ if (inode->i_flags & S_IMMUTABLE)
+ stat->attributes |= STATX_ATTR_IMMUTABLE;
+ if (inode->i_flags & S_APPEND)
+ stat->attributes |= STATX_ATTR_APPEND;
+ stat->attributes_mask |= KSTAT_ATTR_VFS_FLAGS;
+}
+EXPORT_SYMBOL(generic_fill_statx_attr);
+
+/**
* vfs_getattr_nosec - getattr without security checks
* @path: file to get attributes from
* @stat: structure to return attributes in