#include <libcfs/util/list.h>
#include <lustre/lustreapi.h>
-#include <lustre/lustre_idl.h>
#include "lustreapi_internal.h"
/**
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;
}
goto error;
} else {
lum = blob;
+ comp_v1 = (struct lov_comp_md_v1 *)lum;
blob = (struct lov_user_md *)((char *)lum + lum_size);
lum_size += blob_size;
}
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;
lmm_objects[i].l_ost_idx =
comp->llc_objects[i].l_ost_idx;
- if (comp_v1 != NULL) {
+ if (layout->llot_is_composite) {
ent = &comp_v1->lcm_entries[ent_idx];
ent->lcme_id = comp->llc_id;
ent->lcme_flags = comp->llc_flags;
strncpy(buf, path, size);
p = strrchr(buf, '/');
- if (p != NULL)
+ if (p != NULL) {
*p = '\0';
- else if (size >= 2)
+ } else if (size >= 2) {
strncpy(buf, ".", 2);
+ buf[size - 1] = '\0';
+ }
}
/**
}
/**
- * 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
return -1;
if (pattern != LLAPI_LAYOUT_DEFAULT &&
- pattern != LLAPI_LAYOUT_RAID0) {
+ pattern != LLAPI_LAYOUT_RAID0 &&
+ pattern != LLAPI_LAYOUT_MDT) {
errno = EOPNOTSUPP;
return -1;
}
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.
*
}
/**
+ * 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
return -1;
}
+ layout->llot_cur_comp =
+ list_entry(comp->llc_list.prev, typeof(*comp), llc_list);
list_del_init(&comp->llc_list);
__llapi_comp_free(comp);
- layout->llot_cur_comp =
- list_entry(comp->llc_list.prev, typeof(*comp),
- llc_list);
return 0;
}
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);
llapi_layout_comp_extent_set(layout, 0, LUSTRE_EOF);
comp = __llapi_layout_cur_comp(layout);
+ if (comp == NULL) {
+ llapi_layout_free(layout);
+ return -1;
+ }
+
comp->llc_id = id;
comp->llc_flags = flags;
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;
+}