/* Lock / unlock a volatile file, with different creation flags */
static void test12(void)
{
int rc;
int fd;
int gid;
rc = mkdir(mainpath, 0600);
ASSERTF(rc == 0, "mkdir failed for '%s': %s",
mainpath, strerror(errno));
fd = llapi_create_volatile_idx(mainpath, -1, O_CREAT | O_WRONLY);
ASSERTF(fd >= 0, "llapi_create_volatile_idx failed on '%s': %s",
mainpath, strerror(-fd));
gid = 34895;
rc = llapi_group_lock(fd, gid);
ASSERTF(rc == 0, "cannot lock '%s': %s", mainpath, strerror(-rc));
rc = llapi_group_unlock(fd, gid);
ASSERTF(rc == 0, "cannot unlock '%s': %s", mainpath, strerror(-rc));
close(fd);
fd = llapi_create_volatile_idx(mainpath, -1,
O_CREAT | O_WRONLY | O_LOV_DELAY_CREATE);
ASSERTF(fd >= 0, "llapi_create_volatile_idx failed on '%s': %s",
mainpath, strerror(-fd));
gid = 3354895;
rc = llapi_group_lock(fd, gid);
ASSERTF(rc == 0, "cannot lock '%s': %s", mainpath, strerror(-rc));
rc = llapi_group_unlock(fd, gid);
ASSERTF(rc == 0, "cannot unlock '%s': %s", mainpath, strerror(-rc));
close(fd);
fd = llapi_create_volatile_idx(mainpath, -1, O_RDONLY);
ASSERTF(fd >= 0, "llapi_create_volatile_idx failed on '%s': %s",
mainpath, strerror(-fd));
gid = 3489655;
rc = llapi_group_lock(fd, gid);
ASSERTF(rc == 0, "cannot lock '%s': %s", mainpath, strerror(-rc));
rc = llapi_group_unlock(fd, gid);
ASSERTF(rc == 0, "cannot unlock '%s': %s", mainpath, strerror(-rc));
close(fd);
}
/** Create the destination volatile file for a restore operation.
*
* \param hcp Private copyaction handle.
* \param mdt_index MDT index where to create the volatile file.
* \param flags Volatile file creation flags.
* \return 0 on success.
*/
static int create_restore_volatile(struct hsm_copyaction_private *hcp,
int mdt_index, int open_flags)
{
int rc;
int fd;
char parent[PATH_MAX + 1];
const char *mnt = hcp->ct_priv->mnt;
struct hsm_action_item *hai = &hcp->copy.hc_hai;
rc = fid_parent(mnt, &hai->hai_fid, parent, sizeof(parent));
if (rc < 0) {
/* fid_parent() failed, try to keep on going */
llapi_error(LLAPI_MSG_ERROR, rc,
"cannot get parent path to restore "DFID" "
"using '%s'", PFID(&hai->hai_fid), mnt);
snprintf(parent, sizeof(parent), "%s", mnt);
}
fd = llapi_create_volatile_idx(parent, mdt_index, open_flags);
if (fd < 0)
return fd;
rc = fchown(fd, hcp->stat.st_uid, hcp->stat.st_gid);
if (rc < 0)
goto err_cleanup;
rc = llapi_fd2fid(fd, &hai->hai_dfid);
if (rc < 0)
goto err_cleanup;
hcp->data_fd = fd;
return 0;
err_cleanup:
hcp->data_fd = -1;
close(fd);
return rc;
}
