#include <libcfs/util/list.h>
#include <lustre/lustreapi.h>
-#include <lustre/lustre_idl.h>
#include "lustreapi_internal.h"
/**
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';
+ }
}
/**
* \retval NULL if an error occurs
*/
struct llapi_layout *llapi_layout_get_by_fid(const char *lustre_dir,
- const lustre_fid *fid,
+ const struct lu_fid *fid,
uint32_t flags)
{
int fd;
}
/**
- * 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;
}
/* Inherit some attributes from existing component */
new->llc_stripe_size = comp->llc_stripe_size;
new->llc_stripe_count = comp->llc_stripe_count;
+ if (comp->llc_pool_name[0] != '\0')
+ strncpy(new->llc_pool_name, comp->llc_pool_name,
+ sizeof(comp->llc_pool_name));
if (new->llc_extent.e_end <= last->llc_extent.e_end) {
__llapi_comp_free(new);
errno = EINVAL;
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);
}
/**
- * Delete component(s) by the specified component id (accepting lcme_id
- * wildcards also) from an existing file.
+ * Delete component(s) by the specified component id or component flags
+ * from an existing file.
*
* \param[in] path path name of the file
- * \param[in] id unique component ID or an lcme_id
- * (LCME_ID_NONE | LCME_FL_* )
+ * \param[in] id unique component ID
+ * \param[in] flags flags: LCME_FL_* or;
+ * negative flags: (LCME_FL_NEG|LCME_FL_*)
*/
-int llapi_layout_file_comp_del(const char *path, uint32_t id)
+int llapi_layout_file_comp_del(const char *path, uint32_t id, uint32_t flags)
{
- int rc, fd;
+ int rc, fd, lum_size;
+ struct llapi_layout *layout;
+ struct llapi_layout_comp *comp;
+ struct lov_user_md *lum;
- if (path == NULL || id == 0) {
+ if (path == NULL || id > LCME_ID_MAX || (flags & ~LCME_KNOWN_FLAGS)) {
errno = EINVAL;
return -1;
}
- fd = open(path, O_RDWR);
- if (fd < 0)
+ /* Can only specify ID or flags, not both. */
+ if (id != 0 && flags != 0) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ layout = llapi_layout_alloc();
+ if (layout == NULL)
+ return -1;
+
+ 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;
+
+ lum = llapi_layout_to_lum(layout);
+ if (lum == NULL) {
+ llapi_layout_free(layout);
return -1;
+ }
+ lum_size = ((struct lov_comp_md_v1 *)lum)->lcm_size;
- rc = fsetxattr(fd, XATTR_LUSTRE_LOV".del", &id, sizeof(id), 0);
+ fd = open(path, O_RDWR);
+ if (fd < 0) {
+ rc = -1;
+ goto out;
+ }
+
+ rc = fsetxattr(fd, XATTR_LUSTRE_LOV".del", lum, lum_size, 0);
if (rc < 0) {
int tmp_errno = errno;
close(fd);
errno = tmp_errno;
- return -1;
+ rc = -1;
+ goto out;
}
close(fd);
- return 0;
+out:
+ free(lum);
+ llapi_layout_free(layout);
+ return rc;
}
/**
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;
+}