STATIC int
xfs_ioc_bulkstat(
xfs_mount_t *mp,
unsigned int cmd,
void __user *arg)
{
xfs_fsop_bulkreq_t bulkreq;
int count; /* # of records returned */
xfs_ino_t inlast; /* last inode number */
int done;
int error;
/* done = 1 if there are more stats to get and if bulkstat */
/* should be called again (unused here, but used in dmapi) */
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (XFS_FORCED_SHUTDOWN(mp))
return -XFS_ERROR(EIO);
if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t)))
return -XFS_ERROR(EFAULT);
if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
return -XFS_ERROR(EFAULT);
if ((count = bulkreq.icount) <= 0)
return -XFS_ERROR(EINVAL);
if (bulkreq.ubuffer == NULL)
return -XFS_ERROR(EINVAL);
if (cmd == XFS_IOC_FSINUMBERS)
error = xfs_inumbers(mp, &inlast, &count,
bulkreq.ubuffer, xfs_inumbers_fmt);
else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
error = xfs_bulkstat_single(mp, &inlast,
bulkreq.ubuffer, &done);
else /* XFS_IOC_FSBULKSTAT */
error = xfs_bulkstat(mp, &inlast, &count,
(bulkstat_one_pf)xfs_bulkstat_one, NULL,
sizeof(xfs_bstat_t), bulkreq.ubuffer,
BULKSTAT_FG_QUICK, &done);
if (error)
return -error;
if (bulkreq.ocount != NULL) {
if (copy_to_user(bulkreq.lastip, &inlast,
sizeof(xfs_ino_t)))
return -XFS_ERROR(EFAULT);
if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
return -XFS_ERROR(EFAULT);
}
return 0;
}
/*
* Sets up the defragmentation of a file based on the
* filepath. It collects the bstat information, does
* an open on the file and passes this all to fsrfile_common.
*/
static int
fsrfile(char *fname, xfs_ino_t ino)
{
xfs_bstat_t statbuf;
jdm_fshandle_t *fshandlep;
int fd, fsfd;
int error = 0;
char *tname;
fshandlep = jdm_getfshandle(getparent (fname) );
if (! fshandlep) {
fsrprintf(
"unable to construct sys handle for %s: %s\n",
fname, strerror(errno));
return -1;
}
/*
* Need to open something on the same filesystem as the
* file. Open the parent.
*/
fsfd = open(getparent(fname), O_RDONLY);
if (fsfd < 0) {
fsrprintf(
"unable to open sys handle for %s: %s\n",
fname, strerror(errno));
return -1;
}
if ((xfs_bulkstat_single(fsfd, &ino, &statbuf)) < 0) {
fsrprintf(
"unable to get bstat on %s: %s\n",
fname, strerror(errno));
close(fsfd);
return -1;
}
fd = jdm_open( fshandlep, &statbuf, O_RDWR);
if (fd < 0) {
fsrprintf(
"unable to open handle %s: %s\n",
fname, strerror(errno));
close(fsfd);
return -1;
}
/* Get the fs geometry */
if (xfs_getgeom(fsfd, &fsgeom) < 0 ) {
fsrprintf("Unable to get geom on fs for: %s\n", fname);
close(fsfd);
return -1;
}
close(fsfd);
tname = gettmpname(fname);
if (tname)
error = fsrfile_common(fname, tname, NULL, fd, &statbuf);
close(fd);
return error;
}
