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-rw-r--r--fs/nfsd/acl.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/nfsd/acl.h b/fs/nfsd/acl.h
index a812fd1b92a4..b481e1f5eecc 100644
--- a/fs/nfsd/acl.h
+++ b/fs/nfsd/acl.h
@@ -39,9 +39,13 @@ struct nfs4_acl;
struct svc_fh;
struct svc_rqst;
-/* Maximum ACL we'll accept from client; chosen (somewhat arbitrarily) to
- * fit in a page: */
-#define NFS4_ACL_MAX 170
+/*
+ * Maximum ACL we'll accept from a client; chosen (somewhat
+ * arbitrarily) so that kmalloc'ing the ACL shouldn't require a
+ * high-order allocation. This allows 204 ACEs on x86_64:
+ */
+#define NFS4_ACL_MAX ((PAGE_SIZE - sizeof(struct nfs4_acl)) \
+ / sizeof(struct nfs4_ace))
struct nfs4_acl *nfs4_acl_new(int);
int nfs4_acl_get_whotype(char *, u32);