quota: Cleanup flags definitions

Currently all quota flags were defined just in kernel-private headers.
Export flags readable / writeable from userspace to userspace via
include/uapi/linux/quota.h.

Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 13 insertions, 1 deletions

diff --git a/include/uapi/linux/quota.h b/include/uapi/linux/quota.h
index 3b6cfbeb086d..1f49b8341c99 100644
--- a/include/uapi/linux/quota.h
+++ b/include/uapi/linux/quota.h
@@ -126,10 +126,22 @@ struct if_dqblk {
 #define IIF_FLAGS       4
 #define IIF_ALL         (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
 
+enum {
+        DQF_ROOT_SQUASH_B = 0,
+        DQF_SYS_FILE_B = 16,
+        /* Kernel internal flags invisible to userspace */
+        DQF_PRIVATE
+};
+
+/* Root squash enabled (for v1 quota format) */
+#define DQF_ROOT_SQUASH (1 << DQF_ROOT_SQUASH_B)
+/* Quota stored in a system file */
+#define DQF_SYS_FILE    (1 << DQF_SYS_FILE_B)
+
 struct if_dqinfo {
         __u64 dqi_bgrace;
         __u64 dqi_igrace;
-        __u32 dqi_flags;
+        __u32 dqi_flags;        /* DFQ_* */
         __u32 dqi_valid;
 };