Hi!
> > +
> > + SAFE_TOUCH(cleanup, TEST_EMLINK, 0666, NULL);
> > +
> > + while (1) {
> > + sprintf(lname, "%s%ld", BASENAME, ++link_max);
> > + TEST(link(TEST_EMLINK, lname));
> > + if (TEST_RETURN == -1) {
> > + switch (TEST_ERRNO) {
> > + case EMLINK:
> > + tst_resm(TINFO, "for %s the max links is %ld",
> > + fstype, link_max);
> > + break;
> > + default:
> > + tst_brkm(TBROK | TTERRNO, cleanup,
> > + "Unexpected error: ");
> > + break;
> > + }
> > + break;
> > + }
> > + }
> > +}
> >
> Should it give a limit max number here when test EMLINK to handler the
> filesystems which unlimited link count.
> AFAIK,it use 2^31 - 1 with xfs:
> /*
> * The 32 bit link count in the inode theoretically maxes out at UINT_MAX.
> * Since the pathconf interface is signed, we use 2^31 - 1 instead.
> * The old inode format had a 16 bit link count, so its maximum is
> USHRT_MAX.
> */
> #define XFS_MAXLINK ((1U << 31) - 1U)
> #define XFS_MAXLINK_1 65535U
>
> We are not able to reach such limitation.
If xfs has no limit or not reachable limit on number of links we should
skip the setup for EMLINK and return TCONF in the EMLINK test if xfs
filesystem is used.
--
Cyril Hrubis
[email protected]
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