LU-13602 pcc: add LCM_FL_PCC_RDONLY layout flag

[fs/lustre-release.git] / lustre / include / uapi / linux / lustre / lustre_user.h

diff --git a/lustre/include/uapi/linux/lustre/lustre_user.h b/lustre/include/uapi/linux/lustre/lustre_user.h
index 495335b..a245691 100644 (file)
--- a/lustre/include/uapi/linux/lustre/lustre_user.h
+++ b/lustre/include/uapi/linux/lustre/lustre_user.h
@@ -932,12 +932,13 @@ static inline __u16 mirror_id_of(__u32 id)
  * on-disk data for lcm_flags. Valid if lcm_magic is LOV_MAGIC_COMP_V1.
  */
 enum lov_comp_md_flags {
-       /* the least 2 bits are used by FLR to record file state */
-       LCM_FL_NONE          = 0,
-       LCM_FL_RDONLY           = 1,
-       LCM_FL_WRITE_PENDING    = 2,
-       LCM_FL_SYNC_PENDING     = 3,
-       LCM_FL_FLR_MASK         = 0x3,
+       /* the least 4 bits are used by FLR to record file state */
+       LCM_FL_NONE             = 0x0,
+       LCM_FL_RDONLY           = 0x1,
+       LCM_FL_WRITE_PENDING    = 0x2,
+       LCM_FL_SYNC_PENDING     = 0x3,
+       LCM_FL_PCC_RDONLY       = 0x8,
+       LCM_FL_FLR_MASK         = 0xB,
 };
 
 struct lov_comp_md_v1 {
@@ -1020,6 +1021,9 @@ static inline bool lmv_is_known_hash_type(__u32 type)
               (type & LMV_HASH_TYPE_MASK) == LMV_HASH_TYPE_CRUSH;
 }
 
+/* fixed layout, such directories won't split automatically */
+/* NB, update LMV_HASH_FLAG_KNOWN when adding new flag */
+#define LMV_HASH_FLAG_FIXED            0x02000000
 #define LMV_HASH_FLAG_MERGE            0x04000000
 #define LMV_HASH_FLAG_SPLIT            0x08000000
 
@@ -1034,6 +1038,8 @@ static inline bool lmv_is_known_hash_type(__u32 type)
 #define LMV_HASH_FLAG_LAYOUT_CHANGE    \
        (LMV_HASH_FLAG_MIGRATION | LMV_HASH_FLAG_SPLIT | LMV_HASH_FLAG_MERGE)
 
+#define LMV_HASH_FLAG_KNOWN            0xfe000000
+
 /* both SPLIT and MIGRATION are set for directory split */
 static inline bool lmv_hash_is_splitting(__u32 hash)
 {