int File_GetStripeByPath( const char *entry_path, stripe_info_t * p_stripe_info,
stripe_items_t * p_stripe_items )
{
int rc;
struct lov_user_md *p_lum;
if ( !entry_path || !entry_path[0] )
return -EFAULT;
p_lum = (struct lov_user_md *)MemAlloc(LUM_SIZE_MAX);
if (!p_lum)
return -ENOMEM;
memset(p_lum, 0, LUM_SIZE_MAX);
rc = llapi_file_get_stripe(entry_path, p_lum);
if ( rc != 0 )
{
if ( rc == -ENODATA )
DisplayLog( LVL_DEBUG, TAG_STRIPE,
"File %s has no stripe information",
entry_path );
else if ( ( rc != -ENOENT ) && ( rc != -ESTALE ) )
DisplayLog( LVL_CRIT, TAG_STRIPE,
"Error %d getting stripe info for %s", rc,
entry_path );
goto out_free;
}
rc = fill_stripe_info(p_lum, p_stripe_info, p_stripe_items);
out_free:
MemFree(p_lum);
return rc;
}
int main(int argc, char **argv)
{
struct lov_user_md *lum_dir, *lum_file1 = NULL, *lum_file2 = NULL;
struct obd_uuid uuid;
int lum_size, rc;
DIR *dir;
if (argc < 3) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"Usage: %s <dirname> <filename1> [filename2]\n",
argv[0]);
return 1;
}
dir = opendir(argv[1]);
if (dir == NULL) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: %s opendir failed", argv[1]);
return rc;
}
lum_size = lov_user_md_size(MAX_LOV_UUID_COUNT, LOV_USER_MAGIC);
lum_dir = (struct lov_user_md *)malloc(lum_size);
if (lum_dir == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d bytes "
"for dir EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[1], lum_dir);
if (rc == -ENODATA) {
char root[PATH_MAX], path[PATH_MAX + 2];
rc = llapi_search_mounts(argv[1], 0, root, NULL);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get "
"root path for %s\n", argv[1]);
goto cleanup;
}
snprintf(path, sizeof(path), "%s/.", root);
rc = llapi_file_get_stripe(path, lum_dir);
if (rc == -ENODATA) {
free(lum_dir);
lum_dir = NULL;
} else if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc, "error: cant't get "
"root's LOVEA for %s\n", path);
goto cleanup;
}
} else if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get LOVEA for "
"%s", argv[1]);
goto cleanup;
}
/* XXX should be llapi_lov_getname() */
rc = llapi_file_get_lov_uuid(argv[1], &uuid);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get lov name for %s",
argv[1]);
return rc;
}
lum_file1 = malloc(lum_size);
if (lum_file1 == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d bytes for EA",
lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[2], lum_file1);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: unable to get EA for %s", argv[2]);
goto cleanup;
}
if (argc == 4) {
lum_file2 = (struct lov_user_md *)malloc(lum_size);
if (lum_file2 == NULL) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't allocate %d "
"bytes for file2 EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[3], lum_file2);
if (rc) {
llapi_error(LLAPI_MSG_ERROR, rc,
"error: can't get EA for %s", argv[3]);
goto cleanup;
}
}
rc = compare_lum(&uuid, lum_dir, lum_file1, lum_file2);
cleanup:
closedir(dir);
if (lum_dir != NULL)
free(lum_dir);
if (lum_file1 != NULL)
free(lum_file1);
if (lum_file2 != NULL)
free(lum_file2);
return rc;
}
int main(int argc, char **argv)
{
DIR * dir;
struct lov_user_md *lum_dir, *lum_file1 = NULL, *lum_file2 = NULL;
int rc;
int lum_size;
if (argc < 3) {
llapi_err(LLAPI_MSG_ERROR,
"Usage: %s <dirname> <filename1> [filename2]\n",
argv[0]);
return 1;
}
dir = opendir(argv[1]);
if (dir == NULL) {
rc = errno;
llapi_err(LLAPI_MSG_ERROR,
"error: %s opendir failed\n", argv[1]);
return rc;
}
lum_size = lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC);
if ((lum_dir = (struct lov_user_md *)malloc(lum_size)) == NULL) {
rc = ENOMEM;
llapi_err(LLAPI_MSG_ERROR, "error: can't allocate %d bytes "
"for dir EA", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[1], lum_dir);
if (rc) {
if (errno == ENODATA) {
free(lum_dir);
lum_dir = NULL;
} else {
rc = errno;
llapi_err(LLAPI_MSG_ERROR,
"error: can't get EA for %s\n", argv[1]);
goto cleanup;
}
}
/* XXX should be llapi_lov_getname() */
rc = llapi_file_get_lov_uuid(argv[1], &lov_uuid);
if (rc) {
rc = errno;
llapi_err(LLAPI_MSG_ERROR, "error: can't get lov name for %s\n",
argv[1]);
return rc;
}
if ((lum_file1 = (struct lov_user_md *)malloc(lum_size)) == NULL) {
rc = ENOMEM;
llapi_err(LLAPI_MSG_ERROR,
"error: can't allocate %d bytes for EA\n", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[2], lum_file1);
if (rc) {
rc = errno;
llapi_err(LLAPI_MSG_ERROR,
"error: unable to get EA for %s\n", argv[2]);
goto cleanup;
}
if (argc == 4) {
lum_file2 = (struct lov_user_md *)malloc(lum_size);
if (lum_file2 == NULL) {
rc = ENOMEM;
llapi_err(LLAPI_MSG_ERROR, "error: can't allocate %d "
"bytes for file2 EA\n", lum_size);
goto cleanup;
}
rc = llapi_file_get_stripe(argv[3], lum_file2);
if (rc) {
rc = errno;
llapi_err(LLAPI_MSG_ERROR,
"error: can't get EA for %s\n", argv[3]);
goto cleanup;
}
}
rc = compare(lum_dir, lum_file1, lum_file2);
cleanup:
closedir(dir);
if (lum_dir != NULL)
free(lum_dir);
if (lum_file1 != NULL)
free(lum_file1);
if (lum_file2 != NULL)
free(lum_file2);
return rc;
}
int main(int argc, char *argv[])
{
struct lov_user_md lum;
return llapi_file_get_stripe(argv[1], &lum);
}
static int hioi_fs_query_lustre (const char *path, hio_fs_attr_t *fs_attr) {
struct lov_user_md *lum;
struct find_param param;
char mountdir[PATH_MAX];
int rc, fd, obd_count;
rc = llapi_search_mounts (path, 0, mountdir, NULL);
if (0 != rc) {
return hioi_err_errno (-rc);
}
#if !HAVE_LLAPI_GET_OBD_COUNT
fd = open (mountdir, O_RDONLY);
if (-1 == fd) {
return hioi_err_errno (errno);
}
rc = llapi_lov_get_uuids (fd, NULL, &obd_count);
close (fd);
#else
rc = llapi_get_obd_count (mountdir, &obd_count, 0);
#endif
if (0 != rc) {
return hioi_err_errno (errno);
}
fs_attr->fs_flags |= HIO_FS_SUPPORTS_STRIPING | HIO_FS_SUPPORTS_RAID;
fs_attr->fs_type = HIO_FS_TYPE_LUSTRE;
fs_attr->fs_sunit = 64 * 1024;
fs_attr->fs_smax_size = 0x100000000ul;
fs_attr->fs_smax_count = obd_count;
lum = hioi_alloc_lustre_data ();
assert (NULL != lum);
rc = llapi_file_get_stripe (path, lum);
if (0 != rc) {
/* assuming this is a directory try reading the default for the directory. this
* should be updated to check the parent directory if path is a file. */
fd = open (path, O_RDONLY);
if (-1 == fd) {
free (lum);
return hioi_err_errno (errno);
}
rc = ioctl (fd, LL_IOC_LOV_GETSTRIPE, lum);
close (fd);
if (0 > rc) {
free (lum);
return hioi_err_errno (errno);
}
}
fs_attr->fs_scount = lum->lmm_stripe_count ? lum->lmm_stripe_count : 1;
fs_attr->fs_ssize = lum->lmm_stripe_size;
switch (lum->lmm_pattern) {
case LOV_PATTERN_RAID0:
fs_attr->fs_raid_level = 0;
break;
#if defined(LOV_PATTERN_RAID1)
case LOV_PATTERN_RAID1:
fs_attr->fs_raid_level = 1;
break;
#endif
default:
fs_attr->fs_raid_level = -1;
break;
}
free (lum);
return HIO_SUCCESS;
}
int File_GetStripeByPath( const char *entry_path, stripe_info_t * p_stripe_info,
stripe_items_t * p_stripe_items )
{
/* buffer used for llapi_get_stripe.
* oversize it to 4kB because there can be many stripe entries
* in the case of join'ed files.
*/
int rc;
struct lov_user_md *p_lum;
#ifdef LOV_USER_MAGIC_V3
struct lov_user_md_v3 *p_lum3;
#endif
unsigned int i;
if ( !entry_path || !entry_path[0] )
return -EFAULT;
p_lum = (struct lov_user_md *)MemAlloc(LUM_SIZE_MAX);
if (!p_lum)
return -ENOMEM;
memset(p_lum, 0, LUM_SIZE_MAX);
rc = llapi_file_get_stripe( entry_path, p_lum );
if ( rc != 0 )
{
if ( rc == -ENODATA )
DisplayLog( LVL_DEBUG, TAG_STRIPE,
"File %s has no stripe information",
entry_path );
else if ( ( rc != -ENOENT ) && ( rc != -ESTALE ) )
DisplayLog( LVL_CRIT, TAG_STRIPE,
"Error %d getting stripe info for %s", rc,
entry_path );
goto out_free;
}
/* Check protocol version number */
if ( p_lum->lmm_magic == LOV_USER_MAGIC_V1 )
{
if ( p_stripe_info )
{
p_stripe_info->stripe_size = p_lum->lmm_stripe_size;
p_stripe_info->stripe_count = p_lum->lmm_stripe_count;
p_stripe_info->pool_name[0] = '\0';
}
if ( p_stripe_items )
{
p_stripe_items->count = p_lum->lmm_stripe_count;
if ( p_lum->lmm_stripe_count > 0 )
{
p_stripe_items->stripe_units =
( storage_unit_id_t * ) MemCalloc( p_lum->lmm_stripe_count,
sizeof( storage_unit_id_t ) );
if (p_stripe_items->stripe_units == NULL)
{
rc = -ENOMEM;
goto out_free;
}
/* fill OST ids */
for ( i = 0; i < p_lum->lmm_stripe_count; i++ )
{
p_stripe_items->stripe_units[i] = p_lum->lmm_objects[i].l_ost_idx;
}
}
else
{
p_stripe_items->stripe_units = NULL;
}
}
rc = 0;
goto out_free;
}
#ifdef LOV_USER_MAGIC_V3
else if ( p_lum->lmm_magic == LOV_USER_MAGIC_V3 )
{
p_lum3 = ( struct lov_user_md_v3 * ) p_lum;
if ( p_stripe_info )
{
p_stripe_info->stripe_size = p_lum3->lmm_stripe_size;
p_stripe_info->stripe_count = p_lum3->lmm_stripe_count;
strncpy( p_stripe_info->pool_name, p_lum3->lmm_pool_name, LOV_MAXPOOLNAME );
p_stripe_info->pool_name[MAX_POOL_LEN-1] = 0;
}
if ( p_stripe_items )
{
p_stripe_items->count = p_lum3->lmm_stripe_count;
if ( p_lum3->lmm_stripe_count > 0 )
{
p_stripe_items->stripe_units =
( storage_unit_id_t * ) MemCalloc( p_lum3->lmm_stripe_count,
sizeof( storage_unit_id_t ) );
if (p_stripe_items->stripe_units == NULL)
{
rc = -ENOMEM;
goto out_free;
}
/* fill OST ids */
for ( i = 0; i < p_lum3->lmm_stripe_count; i++ )
{
p_stripe_items->stripe_units[i] = p_lum3->lmm_objects[i].l_ost_idx;
}
}
else
{
p_stripe_items->stripe_units = NULL;
}
}
rc = 0;
goto out_free;
}
#endif
else
{
DisplayLog( LVL_CRIT, TAG_STRIPE, "Unsupported Luster magic number for %s: %#X",
entry_path, p_lum->lmm_magic );
rc = -EINVAL;
goto out_free;
}
out_free:
MemFree(p_lum);
return rc;
}
int
mca_fs_lustre_file_open (struct ompi_communicator_t *comm,
char* filename,
int access_mode,
struct ompi_info_t *info,
mca_io_ompio_file_t *fh)
{
int amode;
int old_mask, perm;
int rc;
int flag;
int fs_lustre_stripe_size = -1;
int fs_lustre_stripe_width = -1;
char char_stripe[MPI_MAX_INFO_KEY];
struct lov_user_md *lump=NULL;
if (fh->f_perm == OMPIO_PERM_NULL) {
old_mask = umask(022);
umask(old_mask);
perm = old_mask ^ 0666;
}
else {
perm = fh->f_perm;
}
amode = 0;
if (access_mode & MPI_MODE_CREATE)
amode = amode | O_CREAT;
if (access_mode & MPI_MODE_RDONLY)
amode = amode | O_RDONLY;
if (access_mode & MPI_MODE_WRONLY)
amode = amode | O_WRONLY;
if (access_mode & MPI_MODE_RDWR)
amode = amode | O_RDWR;
if (access_mode & MPI_MODE_EXCL)
amode = amode | O_EXCL;
ompi_info_get (info, "stripe_size", MPI_MAX_INFO_VAL, char_stripe, &flag);
if ( flag ) {
sscanf ( char_stripe, "%d", &fs_lustre_stripe_size );
}
ompi_info_get (info, "stripe_width", MPI_MAX_INFO_VAL, char_stripe, &flag);
if ( flag ) {
sscanf ( char_stripe, "%d", &fs_lustre_stripe_width );
}
if (fs_lustre_stripe_size < 0) {
fs_lustre_stripe_size = mca_fs_lustre_stripe_size;
}
if (fs_lustre_stripe_width < 0) {
fs_lustre_stripe_width = mca_fs_lustre_stripe_width;
}
if ( (fs_lustre_stripe_size>0 || fs_lustre_stripe_width>0) &&
(amode&O_CREAT) && (amode&O_RDWR)) {
if (0 == fh->f_rank) {
llapi_file_create(filename,
fs_lustre_stripe_size,
-1, /* MSC need to change that */
fs_lustre_stripe_width,
0); /* MSC need to change that */
fh->fd = open(filename, O_CREAT | O_RDWR | O_LOV_DELAY_CREATE, perm);
if (fh->fd < 0) {
fprintf(stderr, "Can't open %s file: %d (%s)\n",
filename, errno, strerror(errno));
return OMPI_ERROR;
}
close (fh->fd);
}
fh->f_comm->c_coll.coll_barrier (fh->f_comm,
fh->f_comm->c_coll.coll_barrier_module);
}
fh->fd = open (filename, amode, perm);
if (fh->fd < 0) {
opal_output(1, "error opening file %s\n", filename);
return OMPI_ERROR;
}
if (mca_fs_lustre_stripe_size > 0) {
fh->f_stripe_size = mca_fs_lustre_stripe_size;
}
else {
lump = alloc_lum();
if (NULL == lump ){
fprintf(stderr,"Cannot allocate memory for extracting stripe size\n");
return OMPI_ERROR;
}
rc = llapi_file_get_stripe(filename, lump);
if (rc != 0) {
opal_output(1, "get_stripe failed: %d (%s)\n", errno, strerror(errno));
return OMPI_ERROR;
}
fh->f_stripe_size = lump->lmm_stripe_size;
// if ( NULL != lump ) {
// free ( lump );
// }
}
return OMPI_SUCCESS;
}