* GPL HEADER END
*/
/*
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* lustre/include/lustre/lustre_lfsck_user.h
# define _LUSTRE_LFSCK_USER_H
# include <lustre/lustre_user.h>
+/**
+ * state machine:
+ *
+ * LS_INIT
+ * |
+ * (lfsck|start)
+ * |
+ * v
+ * LS_SCANNING_PHASE1
+ * | ^
+ * | :
+ * | (lfsck:restart)
+ * | :
+ * v :
+ * -----------------------------------------------------------------
+ * | |^ |^ |^ |^ |^
+ * | |: |: |: |: |:
+ * v v: v: v: v: v:
+ * LS_SCANNING_PHASE2 LS_FAILED LS_STOPPED LS_PAUSED LS_CRASHED LS_PARTIAL
+ * (CO_) (CO_) (CO_)
+ * | ^ ^: ^: ^: ^: ^:
+ * | : |: |: |: |: |:
+ * | (lfsck:restart) |: |: |: |: |:
+ * v : |v |v |v |v |v
+ * -----------------------------------------------------------------
+ * |
+ * v
+ * LS_COMPLETED
+ */
+enum lfsck_status {
+ /* The lfsck file is new created, for new MDT, upgrading from old disk,
+ * or re-creating the lfsck file manually. */
+ LS_INIT = 0,
+
+ /* The first-step system scanning. The checked items during the phase1
+ * scanning depends on the LFSCK type. */
+ LS_SCANNING_PHASE1 = 1,
+
+ /* The second-step system scanning. The checked items during the phase2
+ * scanning depends on the LFSCK type. */
+ LS_SCANNING_PHASE2 = 2,
+
+ /* The LFSCK processing has completed for all objects. */
+ LS_COMPLETED = 3,
+
+ /* The LFSCK exited automatically for failure, will not auto restart. */
+ LS_FAILED = 4,
+
+ /* The LFSCK is stopped manually, will not auto restart. */
+ LS_STOPPED = 5,
+
+ /* LFSCK is paused automatically when umount,
+ * will be restarted automatically when remount. */
+ LS_PAUSED = 6,
+
+ /* System crashed during the LFSCK,
+ * will be restarted automatically after recovery. */
+ LS_CRASHED = 7,
+
+ /* Some OST/MDT failed during the LFSCK, or not join the LFSCK. */
+ LS_PARTIAL = 8,
+
+ /* The LFSCK is failed because its controller is failed. */
+ LS_CO_FAILED = 9,
+
+ /* The LFSCK is stopped because its controller is stopped. */
+ LS_CO_STOPPED = 10,
+
+ /* The LFSCK is paused because its controller is paused. */
+ LS_CO_PAUSED = 11,
+
+ LS_MAX
+};
+
+static inline const char *lfsck_status2name(int status)
+{
+ static const char * const lfsck_status_names[] = {
+ [LS_INIT] = "init",
+ [LS_SCANNING_PHASE1] = "scanning-phase1",
+ [LS_SCANNING_PHASE2] = "scanning-phase2",
+ [LS_COMPLETED] = "completed",
+ [LS_FAILED] = "failed",
+ [LS_STOPPED] = "stopped",
+ [LS_PAUSED] = "paused",
+ [LS_CRASHED] = "crashed",
+ [LS_PARTIAL] = "partial",
+ [LS_CO_FAILED] = "co-failed",
+ [LS_CO_STOPPED] = "co-stopped",
+ [LS_CO_PAUSED] = "co-paused"
+ };
+
+ if (status < 0 || status >= LS_MAX)
+ return "unknown";
+
+ return lfsck_status_names[status];
+}
+
enum lfsck_param_flags {
/* Reset LFSCK iterator position to the device beginning. */
LPF_RESET = 0x0001,
/* Create OST-object for dangling LOV EA. */
LPF_CREATE_OSTOBJ = 0x0040,
+
+ /* Create MDT-object for dangling name entry. */
+ LPF_CREATE_MDTOBJ = 0x0080,
+
+ /* Do not return until the LFSCK not running. */
+ LPF_WAIT = 0x0100,
};
enum lfsck_type {
#define LFSCK_SPEED_LIMIT_DEF LFSCK_SPEED_NO_LIMIT
#define LFSCK_ASYNC_WIN_DEFAULT 1024
#define LFSCK_ASYNC_WIN_MAX ((__u16)(~0))
+#define LFSCK_TYPE_BITS 16
enum lfsck_start_valid {
LSV_SPEED_LIMIT = 0x00000001,
LSV_DRYRUN = 0x00000004,
LSV_ASYNC_WINDOWS = 0x00000008,
LSV_CREATE_OSTOBJ = 0x00000010,
+ LSV_CREATE_MDTOBJ = 0x00000020,
};
/* Arguments for starting lfsck. */
__u64 ls_padding_2;
};
+struct lfsck_query {
+ __u16 lu_types;
+ __u16 lu_flags;
+ __u32 lu_mdts_count[LFSCK_TYPE_BITS][LS_MAX + 1];
+ __u32 lu_osts_count[LFSCK_TYPE_BITS][LS_MAX + 1];
+ __u64 lu_repaired[LFSCK_TYPE_BITS];
+};
+
#endif /* _LUSTRE_LFSCK_USER_H */