LU-9771 flr: resync support and test tool

[fs/lustre-release.git] / lustre / utils / liblustreapi_layout.c

diff --git a/lustre/utils/liblustreapi_layout.c b/lustre/utils/liblustreapi_layout.c
index dbf1369..2ff37b6 100644 (file)
--- a/lustre/utils/liblustreapi_layout.c
+++ b/lustre/utils/liblustreapi_layout.c
@@ -38,7 +38,6 @@
 
 #include <libcfs/util/list.h>
 #include <lustre/lustreapi.h>
-#include <lustre/lustre_idl.h>
 #include "lustreapi_internal.h"
 
 /**
@@ -516,8 +515,9 @@ llapi_layout_to_lum(const struct llapi_layout *layout)
                comp_v1->lcm_magic = LOV_USER_MAGIC_COMP_V1;
                comp_v1->lcm_size = lum_size;
                comp_v1->lcm_layout_gen = 0;
-               comp_v1->lcm_flags = 0;
+               comp_v1->lcm_flags = layout->llot_flags;
                comp_v1->lcm_entry_count = comp_cnt;
+               comp_v1->lcm_mirror_count = 0;
                offset += lum_size;
        }
 
@@ -570,6 +570,8 @@ llapi_layout_to_lum(const struct llapi_layout *layout)
                        blob->lmm_pattern = 0;
                else if (pattern == LLAPI_LAYOUT_RAID0)
                        blob->lmm_pattern = LOV_PATTERN_RAID0;
+               else if (pattern == LLAPI_LAYOUT_MDT)
+                       blob->lmm_pattern = LOV_PATTERN_MDT;
                else
                        blob->lmm_pattern = pattern;
 
@@ -1207,7 +1209,7 @@ int llapi_layout_pattern_get(const struct llapi_layout *layout,
 }
 
 /**
- * Set the RAID pattern of \a layout.
+ * Set the pattern of \a layout.
  *
  * \param[in] layout   layout to set pattern in
  * \param[in] pattern  value to be set
@@ -1225,7 +1227,8 @@ int llapi_layout_pattern_set(struct llapi_layout *layout, uint64_t pattern)
                return -1;
 
        if (pattern != LLAPI_LAYOUT_DEFAULT &&
-           pattern != LLAPI_LAYOUT_RAID0) {
+           pattern != LLAPI_LAYOUT_RAID0 &&
+           pattern != LLAPI_LAYOUT_MDT) {
                errno = EOPNOTSUPP;
                return -1;
        }
@@ -1508,6 +1511,31 @@ int llapi_layout_file_create(const char *path, int open_flags, int mode,
                                      layout);
 }
 
+int llapi_layout_flags_get(struct llapi_layout *layout, uint32_t *flags)
+{
+       if (layout->llot_magic != LLAPI_LAYOUT_MAGIC) {
+               errno = EINVAL;
+               return -1;
+       }
+
+       *flags = layout->llot_flags;
+       return 0;
+}
+
+/**
+ * Set flags to the header of a component layout.
+ */
+int llapi_layout_flags_set(struct llapi_layout *layout, uint32_t flags)
+{
+       if (layout->llot_magic != LLAPI_LAYOUT_MAGIC) {
+               errno = EINVAL;
+               return -1;
+       }
+
+       layout->llot_flags = flags;
+       return 0;
+}
+
 /**
  * Fetch the start and end offset of the current layout component.
  *
@@ -1691,6 +1719,33 @@ int llapi_layout_comp_id_get(const struct llapi_layout *layout, uint32_t *id)
 }
 
 /**
+ * Return the mirror id of the current layout component.
+ *
+ * \param[in] layout   the layout component
+ * \param[out] id      stored the returned mirror ID
+ *
+ * \retval     0 on success
+ * \retval     <0 if error occurs
+ */
+int llapi_layout_mirror_id_get(const struct llapi_layout *layout, uint32_t *id)
+{
+       struct llapi_layout_comp *comp;
+
+       comp = __llapi_layout_cur_comp(layout);
+       if (comp == NULL)
+               return -1;
+
+       if (id == NULL) {
+               errno = EINVAL;
+               return -1;
+       }
+
+       *id = mirror_id_of(comp->llc_id);
+
+       return 0;
+}
+
+/**
  * Adds a component to \a layout, the new component will be added to
  * the tail of components list and it'll inherit attributes of existing
  * ones. The \a layout will change it's current component pointer to
@@ -1842,8 +1897,11 @@ int llapi_layout_comp_use(struct llapi_layout *layout,
                return -1;
 
        if (!layout->llot_is_composite) {
-               errno = EINVAL;
-               return -1;
+               if (pos == LLAPI_LAYOUT_COMP_USE_FIRST ||
+                   pos == LLAPI_LAYOUT_COMP_USE_LAST)
+                       return 0;
+               errno = ENOENT;
+               return 1;
        }
 
        head = list_entry(layout->llot_comp_list.next, typeof(*head), llc_list);
@@ -2012,3 +2070,16 @@ int llapi_layout_file_comp_set(const char *path,
        errno = EOPNOTSUPP;
        return -1;
 }
+
+/**
+ * Check if the file layout is composite.
+ *
+ * \param[in] layout   the file layout to check
+ *
+ * \retval true                composite
+ * \retval false       not composite
+ */
+bool llapi_layout_is_composite(struct llapi_layout *layout)
+{
+       return layout->llot_is_composite;
+}