xfs: move eofblocks conversion function to xfs_ioctl.c
Move xfs_fs_eofblocks_from_user into the only file that actually uses
it, so that we don't have this function cluttering up the header file.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 7a71c03e..a40f88c 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -2039,6 +2039,41 @@ xfs_ioc_setlabel(
return error;
}
+static inline int
+xfs_fs_eofblocks_from_user(
+ struct xfs_fs_eofblocks *src,
+ struct xfs_eofblocks *dst)
+{
+ if (src->eof_version != XFS_EOFBLOCKS_VERSION)
+ return -EINVAL;
+
+ if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
+ return -EINVAL;
+
+ if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
+ memchr_inv(src->pad64, 0, sizeof(src->pad64)))
+ return -EINVAL;
+
+ dst->eof_flags = src->eof_flags;
+ dst->eof_prid = src->eof_prid;
+ dst->eof_min_file_size = src->eof_min_file_size;
+
+ dst->eof_uid = INVALID_UID;
+ if (src->eof_flags & XFS_EOF_FLAGS_UID) {
+ dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
+ if (!uid_valid(dst->eof_uid))
+ return -EINVAL;
+ }
+
+ dst->eof_gid = INVALID_GID;
+ if (src->eof_flags & XFS_EOF_FLAGS_GID) {
+ dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
+ if (!gid_valid(dst->eof_gid))
+ return -EINVAL;
+ }
+ return 0;
+}
+
/*
* Note: some of the ioctl's return positive numbers as a
* byte count indicating success, such as readlink_by_handle.
